13 File Io Jobs

You should have 5 to 10+ years of experience in C++ programming with a focus on memory management, file I/O, and streams concepts. Your expertise should also include a strong understanding of multithreading, including creating and managing threads, synchronization mechanisms like mutexes and condition variables, and kernel-level operations. Additionally, you should possess a good understanding of Linux development and triaging, including familiarity with command-line tools, POSIX, processes, and network operations. A solid foundation in building applications in a C++ environment is also crucial for this role.,

At EY, you'll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you. And we're counting on your unique voice and perspective to help EY become even better, too. Join us and build an exceptional experience for yourself, and a better working world for all. We are looking for an expert in Android application development with solid foundation in enterprise and commercial applications, interested in building highly performant mobile apps with Jetpack and Kotlin. Your primary focus will be on leading a team, proposing reference architectures, creating estimates, and giving inputs to client proposals. You will also lead the development of user interface and reusable components. You will ensure that these components and the overall application are robust and easy to maintain. A commitment to collaborative problem solving, sophisticated expandable design, and quality product is important. **Responsibilities:** - Developing new user interface using Jetpack compose - Networking Libraries and integration with third-party frameworks - Building reusable components and libraries for future use - Translating designs and wireframes into high quality code - Ability to optimize the code through the use of instruments or various techniques of memory profiling - Guiding the team to follow best industry practices to deliver clean code while keeping performance in check - Fostering teamwork and leading by example - People and Stakeholder management by close interaction with clients and internal stakeholders **Experience:** - 6+ years experience in Android native application development with Jetpack compose and Kotlin - Excellent UI/UX and architecture skills - Ability to transform the design into code quickly - Experience in unit testing and ensuring the developed code passes the quality gate from Sonar - Experience in identifying code quality issues during code reviews - JSON, REST and Web Services, low energy peripheral devices integration - Experience in setting up continuous integration processes and automated unit/UI testing - Jira, git or other tools **Must have skills:** - In-depth knowledge in Kotlin and Jetpack compose - Expertise in Retrofit, Volley, RoomDB, SharedPreferences, Hilt, Dagger, Co-routines - Understanding and implementing accessibility - Ability to Perform concurrency and performance testing - Ability to organize large-scale front-end mobile application codebases using common mobile design patterns such as MVVM, MVC or Viper - Understanding and working in Snapshot testing - In-depth understanding of layouts - Understanding of interactive application development paradigms, GUI, memory management, file I/O, network & socket programming, concurrency, and multi-threading - Developing cutting-edge functional modules that will be integrated across our application - Experience in code versioning tools such as Git or SVN - Understanding and Implementation of SOLID principles in an Android Application - Staying abreast of latest Android platform features and proposing the evolution of the application to take advantage of the same - Experience with two-way data synchronization between client and server database for applications that support offline capability - Unit-testing code for robustness, including edge cases, usability, and general reliability - Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency - Experience in implementing security policies - Experience in automation, CI/CD, and Unit testing frameworks - Ability to analyze crash logs and provide fixes - Ability to write code that passes multiple quality gates from Checkmarx, MobSF, Sonar, etc., - Good knowledge of fixing quality issues from Checkmarx and fixing issues from Penetration Testing **Nice to have skills:** - AWS/Azure or any cloud exposure - SSO, LDAP, OAuth, SSL integration - Experience in emerging technologies such as IoT, AI/ML, etc. - Awareness of enterprise Mobile Application Management (MAM)/Mobile Device Management (MDM) frameworks such as Microsoft Intune, Citrix Endpoint Management will be a plus - More advanced data handlers such as WebSockets and Offline mobile applications - Awareness of Enterprise mobile applications and data protection policies and methods would be a plus EY | Building a better working world EY exists to build a better working world, helping to create long-term value for clients, people, and society and build trust in the capital markets. Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform, and operate. Working across assurance, consulting, law, strategy, tax, and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.,

We are seeking a backend developer with experience in integrating open-source LLMs (e.g., Mistral, LLaMA) and vector databases (such as FAISS, Qdrant, Weaviate, Milvus) in offline or edge environments. As part of the team, you will be involved in developing core APIs and infrastructure to facilitate embedding pipelines, retrieval-augmented generation (RAG), and LLM inference on local or mobile hardware. Your responsibilities will include designing and implementing backend services that connect with local LLMs and vector databases, creating APIs to support engineering, retrieval, and inference, integrating embedding models (e.g., BGE, MiniLM), and managing chunking/processing pipelines. Additionally, you will be optimizing performance for offline or constrained environments such as mobile and embedded devices, packaging and deploying models using frameworks like Ollama, llama.cpp, gguf, or on-device runtimes, as well as handling local file I/O, document ingestion, metadata tagging, and indexing. About the Company: Infoware is a process-driven software solutions provider that specializes in tailored software solutions. Our expertise lies in collaborating with enterprises and startups to deliver comprehensive end-to-end solutions. To learn more about our company, please visit our website at https://www.infowareindia.com/,

As an excellent hands-on engineer, you will be working on developing next-generation media server software as a part of a core team dedicated to revolutionizing video sharing technology over the internet. Your role will involve contributing significantly to the development of server-side components, providing a learning opportunity in the video streaming space. You should have good hands-on experience with AWS, solid programming skills in C/C++ and Python, along with knowledge of AWS services like Lambda, EFS, auto-scaling, and load balancing. Experience in building and provisioning dockerized applications is highly preferable, along with a good understanding of the HTTP protocol. Familiarity with Web Servers (Apache, Nginx), Databases (MySQL, Redis, MongoDB, Firebase), Python frameworks (Django, Flask), Source Control (Git), REST APIs, and strong understanding of memory management, file I/O, network I/O, concurrency, and multithreading is expected. Your specific responsibilities will include working on scalable video deployments, extending the Mobile Application Backend for customer-specific features, maintaining and extending existing software components in the Media Server software, and fostering a multi-paradigm engineering culture with a cross-functional team. To excel in this role, you should bring strong coding skills and experience with Python and cloud functions, at least 1-2 years of experience with AWS services and GitHub, 6 to 12 months of experience in S3 or other storage/CDN services, exposure to NoSQL databases for developing mobile backends, and proficiency in Agile and Jira tools. A BS or equivalent in Computer Science or Engineering is preferred. If you are ready to take on this exciting opportunity, please send your CV to careers@crunchmediaworks.com.,

As a Mac Developer, you will be responsible for designing and developing high-quality software applications for MacOS using Swift4 and above programming language. Your primary focus will be on writing clean, maintainable, and efficient code following best practices and design patterns. You will collaborate with cross-functional teams to define, design, and ship new features while ensuring the performance, quality, and responsiveness of applications. Identifying and correcting bottlenecks and fixing bugs will be essential tasks, along with continuously discovering, evaluating, and implementing new technologies to maximize development efficiency. To excel in this role, you must possess a strong knowledge of Swift4 and above programming language. Proficiency in XPC, Schedulers, Async/Sync Functions, Tasks, File IO, OOPS concepts such as structs, enum, class, extension, protocol, Web API client, and Core Data is crucial. Familiarity with Daemon Service, Launch Agents, and Installer is desired, and experience with Objective-C is considered a plus. A good understanding of MacOS 10.13 and above is required, along with solid knowledge of the software development life cycle (SDLC) and agile methodologies. In addition to technical skills, strong problem-solving and analytical abilities are essential for this role. Good written and verbal communication skills are necessary for effective collaboration with teams. You should be able to work both independently and as part of a team to deliver high-quality software solutions for MacOS effectively.,

You will be responsible for building and releasing iPhone/iPad Applications, utilizing your in-depth knowledge of iOS, iPhone SDK, Objective C, CoreData / Sqlite, and Cocoa Touch framework. Your expertise in Application Designing and Designing documents will be crucial for this role. You should also have experience in developing Web Services / API layer for Server interactions and APIs to retrieve data. Proficiency in High Level Design (HLD) and Low Level Design (LLD) is required, along with familiarity with Interactive Application Development Paradigms, Memory Management, file I/O, network and socket programming, and concurrency. You must possess strong debugging and testing skills for Mobile Applications, particularly in client-server application development. Experience with iOS frameworks and having published at least 2 apps on iTunes will be highly beneficial. Qualifications for this position include a BCA, MCA, B.Sc (IT), M.Sc (IT), or BE/B.Tech (IT/CS) degree. The ideal candidate will have 8 months to 2 years of experience in the field. The salary offered will be as per industry standards, and the location of the job is in Indore. Local candidates who can join immediately are preferred for this role. For further information or inquiries, please contact us at 0731-4279840.,

NTT DATA is seeking a Java Technical Consultant to join their team in Bangalore, Karnataka (IN-KA), India. As a Java Technical Consultant, you will be responsible for demonstrating proficiency in Java, including a solid understanding of its ecosystems. You will also be expected to have sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts, familiarity with different design and architectural patterns, and the ability to write reusable Java libraries. Additionally, you should possess expertise in Java concurrency patterns, a basic understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services. Experience in working with popular web application frameworks like Play and Spark is preferred, as well as relevant knowledge of Java GUI frameworks like Swing, SWT, AWT according to project requirements. The ideal candidate will have the ability to write clean, readable Java code, basic knowhow of class loading mechanism in Java, experience in handling external and embedded databases, and understanding basic design principles behind scalable applications. You should also be skilled at creating database schemas that characterize and support business processes, knowledgeable about JVM (Java Virtual Machine) and its drawbacks, weaknesses, and workarounds, and proficient in implementing automated testing platforms and unit tests. Moreover, you are expected to have in-depth knowledge of code versioning tools like Git, understanding of building tools such as Ant, Maven, Gradle, etc, expertise in continuous integration, and familiarity with JavaServer pages (JSP) and servlets, web frameworks like Struts and Spring, service-oriented architecture, web technologies like HTML, JavaScript, CSS, JQuery, and markup languages such as XML, JSON. Other required skills for this role include knowledge of abstract classes and interfaces, constructors, lists, maps, sets, file IO and serialization, exceptions, generics, Java Keywords like static, volatile, synchronized, transient, etc, multithreading, and synchronization. Banking experience is a must for this position. NTT DATA is a global innovator of business and technology services, serving 75% of the Fortune Global 100. As a Global Top Employer, NTT DATA has diverse experts in more than 50 countries and a robust partner ecosystem. Their services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation, and management of applications, infrastructure, and connectivity. NTT DATA is committed to helping clients innovate, optimize, and transform for long-term success and is one of the leading providers of digital and AI infrastructure worldwide. Visit us at us.nttdata.com.,

You will be responsible for designing and developing high-quality software applications for MacOS using Swift4 and above programming language. Your main tasks will include writing clean, maintainable, and efficient code following best practices and design patterns. Collaborating with cross-functional teams to define, design, and ship new features is an essential part of the role. You will need to ensure the performance, quality, and responsiveness of applications, identify and correct bottlenecks, and fix bugs. Moreover, you will be expected to continuously discover, evaluate, and implement new technologies to maximize development efficiency. To be successful in this position, you must have a strong knowledge of Swift4 and above programming language, proficiency in XPC, Schedulers, Async/Sync Functions, Tasks, File IO, as well as a good understanding of OOPS concepts such as structs, enum, class, extension, protocol, Web API client, and Core Data. Familiarity with Daemon Service, Launch Agents, and Installer is also required. Experience with Objective-C will be considered a plus. A solid understanding of MacOS 10.13 and above is necessary, along with knowledge of the software development life cycle (SDLC) and agile methodologies. Strong problem-solving and analytical skills, good written and verbal communication skills, and the ability to work both independently and as part of a team are essential for this role.,

Introduction In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. Your role and responsibilities As a Software Developer youll participate in many aspects of the software development lifecycle, such as design, code implementation, testing, and support. You will create software that enables your clients hybrid-cloud and AI journeys. Youll have the opportunity to work with the latest technologies, ensuring the applications delivered are high performing, highly available, responsive, and maintainable. Your primary responsibilities include: Analytical Problem-Solving and Solution Enhancement: Analyze, validate and propose improvements to existing failures, with the support of the architect and technical leader. Comprehensive Engagement Across Process Phases: Involvement in every step of the process, from design, development, testing release changes and troubleshoot where necessary, providing a great customer service. Strategic Stakeholder Engagement and Innovative Coding Solutions: Drive key discussions with your stakeholders and analyze the current landscape for opportunities to operate and code creative solutions Required education Bachelors Degree Preferred education Masters Degree Required technical and professional expertise BE / B Tech in any stream, M.Sc. (Computer Science/IT) / M.C.A, with Minimum 3-5 years of experience with software development. Experience in have working knowledge on Java 8 or higher. Proven working experience on both Spring and Hibernate (Spring 4 or above). Experience in knowing OOP concepts well. Should be proficient in Exception Handling, Collections, Abstract Classes and Interfaces, Constructors, File IO (Input/Output) and Serialization, Collections (List, Map, Set), Access Specifiers, Exceptions (Checked, Unchecked), Generics, Java Keywords (Static, Final, Volatile, Synchronized, Transient), JVM (Java Virtual Machine) and Memory Management, Multithreading and Synchronization, JSP (Java Server Page)/ Servlets Preferred technical and professional experience Should be conversant with Build tools like Ant, Maven and Git Must have experience on Design patterns and Optimize usage. Proven work experience on Spring Core, Spring ORM, Spring DAO, Spring AOP, Hibernate would be an added advantage

Introduction In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe. Youll work with visionaries across multiple industries to improve the hybrid cloud and AI journey for the most innovative and valuable companies in the world. Your ability to accelerate impact and make meaningful change for your clients is enabled by our strategic partner ecosystem and our robust technology platforms across the IBM portfolio including Software and Red Hat. Curiosity and a constant quest for knowledge serve as the foundation to success in IBM Consulting. In your role, youll be encouraged to challenge the norm, investigate ideas outside of your role, and come up with creative solutions resulting in ground breaking impact for a wide network of clients. Our culture of evolution and empathy centers on long-term career growth and development opportunities in an environment that embraces your unique skills and experience In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. Your role and responsibilities As a Software Developer youll participate in many aspects of the software development lifecycle, such as design, code implementation, testing, and support. You will create software that enables your clients hybrid-cloud and AI journeys. Youll have the opportunity to work with the latest technologies, ensuring the applications delivered are high performing, highly available, responsive, and maintainable. Your primary responsibilities include: Analytical Problem-Solving and Solution Enhancement: Analyze, validate and propose improvements to existing failures, with the support of the architect and technical leader. Comprehensive Engagement Across Process Phases: Involvement in every step of the process, from design, development, testing release changes and troubleshoot where necessary, providing a great customer service. Strategic Stakeholder Engagement and Innovative Coding Solutions: Drive key discussions with your stakeholders and analyze the current landscape for opportunities to operate and code creative solutions Required education Bachelors Degree Preferred education Masters Degree Required technical and professional expertise BE / B Tech in any stream, M.Sc. (Computer Science/IT) / M.C.A, with Minimum 3-5 years of experience with software development. Experience in have working knowledge on Java 8 or higher. Proven working experience on both Spring and Hibernate (Spring 4 or above). Experience in knowing OOP concepts well. Should be proficient in Exception Handling, Collections, Abstract Classes and Interfaces, Constructors, File IO (Input/Output) and Serialization, Collections (List, Map, Set), Access Specifiers, Exceptions (Checked, Unchecked), Generics, Java Keywords (Static, Final, Volatile, Synchronized, Transient), JVM (Java Virtual Machine) and Memory Management, Multithreading and Synchronization, JSP (Java Server Page)/ Servlets Preferred technical and professional experience Should be conversant with Build tools like Ant, Maven and Git Must have experience on Design patterns and Optimize usage. Proven work experience on Spring Core, Spring ORM, Spring DAO, Spring AOP, Hibernate would be an added advantage

Introduction A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe. Youll work with visionaries across multiple industries to improve the hybrid cloud and AI journey for the most innovative and valuable companies in the world. Your ability to accelerate impact and make meaningful change for your clients is enabled by our strategic partner ecosystem and our robust technology platforms across the IBM portfolio including Software and Red Hat. Curiosity and a constant quest for knowledge serve as the foundation to success in IBM Consulting. In your role, youll be encouraged to challenge the norm, investigate ideas outside of your role, and come up with creative solutions resulting in ground breaking impact for a wide network of clients. Our culture of evolution and empathy centers on long-term career growth and development opportunities in an environment that embraces your unique skills and experience. In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. Your role and responsibilities As a Software Developer youll participate in many aspects of the software development lifecycle, such as design, code implementation, testing, and support. You will create software that enables your clients hybrid-cloud and AI journeys. Youll have the opportunity to work with the latest technologies, ensuring the applications delivered are high performing, highly available, responsive, and maintainable. Your primary responsibilities include: . Analytical Problem-Solving and Solution Enhancement: Analyze, validate and propose improvements to existing failures, with the support of the architect and technical leader. . Comprehensive Engagement Across Process Phases: Involvement in every step of the process, from design, development, testing release changes and troubleshoot where necessary, providing a great customer service. . Strategic Stakeholder Engagement and Innovative Coding Solutions: Drive key discussions with your stakeholders and analyze the current landscape for opportunities to operate and code creative solutions. Required education Bachelors Degree Preferred education Masters Degree Required technical and professional expertise BE / B Tech in any stream, M.Sc. (Computer Science/IT) / M.C.A, with Minimum 3-5 years of experience with software development. Experience in have working knowledge on Java 8 or higher. Proven working experience on both Spring and Hibernate (Spring 4 or above). Experience in knowing OOP concepts well. Should be proficient in Exception Handling, Collections, Abstract Classes and Interfaces, Constructors, File IO (Input/Output) and Serialization, Collections (List, Map, Set), Access Specifiers, Exceptions (Checked, Unchecked), Generics, Java Keywords (Static, Final, Volatile, Synchronized, Transient), JVM (Java Virtual Machine) and Memory Management, Multithreading and Synchronization, JSP (Java Server Page)/ Servlets Preferred technical and professional experience Should be conversant with Build tools like Ant, Maven and Git Must have experience on Design patterns and Optimize usage. Proven work experience on Spring Core, Spring ORM, Spring DAO, Spring AOP, Hibernate would be an added advantage

Introduction A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe. Youll work with visionaries across multiple industries to improve the hybrid cloud and AI journey for the most innovative and valuable companies in the world. Your ability to accelerate impact and make meaningful change for your clients is enabled by our strategic partner ecosystem and our robust technology platforms across the IBM portfolio including Software and Red Hat. Curiosity and a constant quest for knowledge serve as the foundation to success in IBM Consulting. In your role, youll be encouraged to challenge the norm, investigate ideas outside of your role, and come up with creative solutions resulting in ground breaking impact for a wide network of clients. Our culture of evolution and empathy centers on long-term career growth and development opportunities in an environment that embraces your unique skills and experience In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. Your role and responsibilities As a Software Developer youll participate in many aspects of the software development lifecycle, such as design, code implementation, testing, and support. You will create software that enables your clients hybrid-cloud and AI journeys. Youll have the opportunity to work with the latest technologies, ensuring the applications delivered are high performing, highly available, responsive, and maintainable. Your primary responsibilities include: Analytical Problem-Solving and Solution Enhancement: Analyze, validate and propose improvements to existing failures, with the support of the architect and technical leader. Comprehensive Engagement Across Process Phases: Involvement in every step of the process, from design, development, testing release changes and troubleshoot where necessary, providing a great customer service. Strategic Stakeholder Engagement and Innovative Coding Solutions: Drive key discussions with your stakeholders and analyze the current landscape for opportunities to operate and code creative solutions Required education Bachelors Degree Preferred education Masters Degree Required technical and professional expertise BE / B Tech in any stream, M.Sc. (Computer Science/IT) / M.C.A, with Minimum 3-5 years of experience with software development. Experience in have working knowledge on Java 8 or higher. Proven working experience on both Spring and Hibernate (Spring 4 or above). Experience in knowing OOP concepts well. Should be proficient in Exception Handling, Collections, Abstract Classes and Interfaces, Constructors, File IO (Input/Output) and Serialization, Collections (List, Map, Set), Access Specifiers, Exceptions (Checked, Unchecked), Generics, Java Keywords (Static, Final, Volatile, Synchronized, Transient), JVM (Java Virtual Machine) and Memory Management, Multithreading and Synchronization, JSP (Java Server Page)/ Servlets Preferred technical and professional experience Should be conversant with Build tools like Ant, Maven and Git Must have experience on Design patterns and Optimize usage. Proven work experience on Spring Core, Spring ORM, Spring DAO, Spring AOP, Hibernate would be an added advantage

Introduction A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe. Youll work with visionaries across multiple industries to improve the hybrid cloud and AI journey for the most innovative and valuable companies in the world. Your ability to accelerate impact and make meaningful change for your clients is enabled by our strategic partner ecosystem and our robust technology platforms across the IBM portfolio including Software and Red Hat. Curiosity and a constant quest for knowledge serve as the foundation to success in IBM Consulting. In your role, youll be encouraged to challenge the norm, investigate ideas outside of your role, and come up with creative solutions resulting in ground breaking impact for a wide network of clients. Our culture of evolution and empathy centers on long-term career growth and development opportunities in an environment that embraces your unique skills and experience. In this role, youll work in one of our IBM Consulting Client Innovation Centers (Delivery Centers), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our delivery centers offer our clients locally based skills and technical expertise to drive innovation and adoption of new technology. Your role and responsibilities As a Software Developer youll participate in many aspects of the software development lifecycle, such as design, code implementation, testing, and support. You will create software that enables your clients hybrid-cloud and AI journeys. Youll have the opportunity to work with the latest technologies, ensuring the applications delivered are high performing, highly available, responsive, and maintainable. Your primary responsibilities include: . Analytical Problem-Solving and Solution Enhancement: Analyze, validate and propose improvements to existing failures, with the support of the architect and technical leader. . Comprehensive Engagement Across Process Phases: Involvement in every step of the process, from design, development, testing release changes and troubleshoot where necessary, providing a great customer service. . Strategic Stakeholder Engagement and Innovative Coding Solutions: Drive key discussions with your stakeholders and analyze the current landscape for opportunities to operate and code creative solutions. Required education Bachelors Degree Preferred education Masters Degree Required technical and professional expertise BE / B Tech in any stream, M.Sc. (Computer Science/IT) / M.C.A, with Minimum 3-5 years of experience with software development. Experience in have working knowledge on Java 8 or higher Proven working experience on both Spring and Hibernate (Spring 4 or above). Experience in knowing OOP concepts well. Should be proficient in Exception Handling, Collections, Abstract Classes and Interfaces, Constructors, File IO (Input/Output) and Serialization, Collections (List, Map, Set), Access Specifiers, Exceptions (Checked, Unchecked), Generics, Java Keywords (Static, Final, Volatile, Synchronized, Transient), JVM (Java Virtual Machine) and Memory Management, Multithreading and Synchronization, JSP (Java Server Page)/ Servlets Preferred technical and professional experience Should be conversant with Build tools like Ant, Maven and Git Must have experience on Design patterns and Optimize usage. Proven work experience on Spring Core, Spring ORM, Spring DAO, Spring AOP, Hibernate would be an added advantage