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Han River Technology

11 Job openings at Han River Technology
Contract-Based Frontend Developer (React / Vue / Java) Kolkata,Bengaluru 3 - 5 years INR 3.5 - 6.0 Lacs P.A. Hybrid Full Time

Job Description: We are hiring a Contract-Based Frontend Developer for a unique opportunity to work with a reputed client in the field of AI and Large Language Model (LLM) data solutions . The selected candidate will be deputed to the clients team , where they will contribute to the development and evaluation of code generated by AI models. Key Responsibilities: Use AI models (LLMs) to generate frontend code based on predefined prompts. Document and record each prompt and its corresponding generated code. Evaluate and review the AI-generated code to assess whether it is practically usable and technically sound. Collaborate with internal and client-side teams to improve output quality and efficiency. Required Technical Skills: Basic knowledge of any of the following: React.js Vue.js Java (for frontend or applets/similar UI-related tasks) Understanding of frontend logic and structure Ability to evaluate if a code snippet is functional and relevant Key Requirements: Must be available full-time (8 hours/day) Should be open to contract-based engagement (with flexible termination clauses) Strong attention to detail and ability to work independently Prior exposure to code review or working with AI tools is a plus, but not mandatory Employment Terms: Engagement Type: Contract (renewable/terminable based on performance and project need) Working Hours: Full-time (8 hours per day) Start Date: Immediate / As soon as possible Compensation: As per industry standards and experience.

Junior HR and Administration Executive Kolkata 0 - 2 years INR 1.0 - 2.25 Lacs P.A. Work from Office Full Time

HR Responsibilities: Assist with end-to-end recruitment activities (posting jobs, coordinating interviews, candidate follow-up). Draft offer letters, appointment letters, and other HR-related documents. Maintain and update employee records (physical and digital). Assist in onboarding and induction processes for new employees. Help track employee attendance, leaves, and timesheets. Prepare and maintain monthly reports related to hiring, employee data, and HR metrics. Assist in coordinating training and employee engagement activities. Maintain confidentiality of employee information at all times. Admin Responsibilities: Handle day-to-day administrative tasks such as document preparation, approval note drafting, filing, and scheduling. Coordinate with vendors and service providers for office needs. Support in organizing company events, meetings, and logistics. Assist in maintaining office inventory and tracking usage. Draft and manage documentation required for management approvals or internal processes. Preferred candidate profile Bachelors/Master's degree in any discipline (HR, Business Administration preferred). 0–2 years of experience in HR and/or administrative roles. Excellent written and verbal communication skills in English is a must. Proficient in MS Office Suite (Word, Excel, PowerPoint). Ability to follow instructions accurately and meet deadlines. Good organizational and documentation skills. Detail-oriented with the ability to multitask. Positive attitude and willingness to learn.

Urgent Hiring For Design UI/UX Engineer Kolkata 4 - 6 years INR 3.6 - 6.0 Lacs P.A. Work from Office Full Time

Responsibilities : Collected user requirements Created storyboards and flows Designed UI components Built mockups/prototypes Fixed UX issues Used Figma (bonus)

Urgent Hiring For iOS Developer Kolkata,Bengaluru 4 - 6 years INR 7.0 - 15.0 Lacs P.A. Work from Office Full Time

Job Title: iOS App Developer Location: Bangalore/Kolkata Employment Type: Full-Time Experience: 4-6 Years Job Summary : We are seeking a skilled and passionate iOS App Developer to join our mobile development team. The ideal candidate will be responsible for designing, developing, and maintaining advanced applications for the iOS platform, ensuring high performance and user experience. Key Responsibilities: Design and build advanced applications for the iOS platform using Swift/Objective-C. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Maintain code quality, organization, and automation. Work on bug fixing and improving application performance. Continuously discover, evaluate, and implement new technologies to maximize development efficiency. Required Skills and Qualifications: Bachelor's/ Master's degree in Computer Science, Engineering, or a related field. Proven experience in iOS app development (published at least one app on the App Store is a plus). Proficient with Swift and Objective-C. Solid understanding of the full mobile development life cycle. Experience with iOS frameworks such as Core Data, Core Animation, etc. Familiarity with RESTful APIs to connect iOS applications to back-end services. Experience with third-party libraries and APIs. Understanding of Apple's design principles and interface guidelines. Proficient understanding of code versioning tools such as Git. Preferred Qualifications: Experience with Agile development methodologies. Knowledge of cloud message APIs and push notifications. Familiarity with continuous integration tools. Experience with modern architectural patterns like MVVM, MVP, or Clean Architecture.

Urgent Hiring For Frontend Developer (React / Next) Kolkata,Bengaluru 3 - 6 years INR 3.25 - 6.0 Lacs P.A. Work from Office Full Time

Job Summary: We are hiring a Frontend Developer for a unique opportunity to collaborate with a reputed client in the field of Artificial Intelligence (AI) and Large Language Model (LLM) data solutions. In this role, you will be deputed to the clients team and play a key part in generating, reviewing, and validating frontend code produced by advanced AI models. This is an ideal opportunity for developers interested in the intersection of AI and frontend development. Key Responsibilities Use LLMs (Large Language Models) to generate frontend code based on structured prompts. Document and log each prompt along with the corresponding AI-generated code. Review and evaluate AI-generated code for technical correctness, usability, and real-world application. Provide feedback on prompt effectiveness and suggest improvements for better code generation. Collaborate with internal and client-side teams to refine the evaluation process and enhance output quality. Required Technical Skills Basic knowledge and understanding of React.js and/or Next.js Familiarity with frontend logic, component structure, and modern UI patterns Exposure to Java (for frontend, UI, or applet-based tasks) is a plus Ability to assess if a code snippet is syntactically correct and functionally relevant Key Qualifications Must be available full-time (8 hours per day) Strong attention to detail and ability to work independently Excellent documentation and communication skills Prior experience with code review or working with AI/LLM tools is a plus but not required A passion for exploring how AI can support software development is desirable

Urgent Hiring For Design UI/UX Engineer Kolkata,Bengaluru 3 - 6 years INR 3.75 - 6.0 Lacs P.A. Work from Office Full Time

We are looking for a UI/UX Designer to turn our software into easy-to-use products for our clients. UI/UX Designer responsibilities include gathering user requirements, designing graphic elements and building navigation components. To be successful in this role, you should have experience with design system, software and wireframe tools. If you also have a portfolio of professional design projects that includes work with web/mobile applications, wed like to meet you. Ultimately, you'll create both functional and appealing features that address our clients needs and help us grow our customer base. Responsibilities : Gather and evaluate user requirements in collaboration with product managers and engineers Illustrate design ideas using storyboards, process flows and sitemaps Design graphic user interface elements, like menus, tabs and widgets Develop UI mockups and prototypes that clearly illustrate how sites function and look like Prepare and present rough drafts to internal teams and key stakeholders Identify and troubleshoot UX problems (e.g. responsiveness) Conduct layout adjustments based on user feedback Knowledge of Figma is a added bonus Requirements and skills : Proven work experience as a UI/UX Designer or similar role Portfolio of design projects Knowledge of wireframe tools Up-to-date knowledge of design software like Figma, Adobe Illustrator and Photoshop Team spirit; strong communication skills to collaborate with various stakeholders Goodtime-management skills BSc in Design, Computer Science or relevant field Hands on with industry leading design & research analysis tools preferable examples Notion, Figma, Miro, Slack, Google sheet Freshers can also apply Good communication is a must

Hiring For Salesforce Developer Kolkata,Bengaluru 3 - 7 years INR 6.0 - 15.0 Lacs P.A. Work from Office Full Time

Key Responsibilities: Design, develop, and customize Salesforce CRM components to support business needs Build solutions using Apex, Lightning Web Components (LWC), and Salesforce Flows Integrate Salesforce with external platforms such as Slack, Notion, etc. Collaborate with cross-functional teams to prepare our internal Agent App for Salesforce AppExchange listing Maintain clean, scalable, and well-documented code Requirements: Minimum 3 years of hands-on experience in Salesforce CRM development Proficiency in Apex , LWC , and Salesforce configuration Experience with Salesforce APIs and external system integrations Strong problem-solving and communication skills [Preferred] Prior experience in AppExchange app development/publishing is a plus What We Offer: A remote-first work environment Competitive compensation and performance-based incentives The opportunity to contribute to a cutting-edge AI SaaS product A collaborative and supportive team culture

Urgent hiring For Technical Project Manager Kolkata,Bengaluru 8 - 10 years INR 10.0 - 20.0 Lacs P.A. Work from Office Full Time

Who We re Looking For: We are looking to hire experienced and driven Project Managers, Technical Leads, or Technical Managers with a strong foundation in Backend (Node.js / Java), Frontend (React.js / Next.js / JavaScript), or Native Mobile App Development (Android / iOS) . Candidates should have hands-on expertise in API integration, code structuring, performance optimization , and should be capable of leading teams, mentoring junior developers, and owning project delivery end to end. Key Responsibilities: Lead and manage development teams for web or mobile app projects. Define technical architecture, coding standards, and deployment strategies. Collaborate with cross-functional teams product, design, QA, and DevOps. Ensure efficient and clean code practices with a focus on performance and scalability. Take ownership of backend/frontend/mobile modules and ensure timely delivery. Conduct regular code reviews, performance checks, and security validations. Manage API integrations and system-level debugging across platforms. Prepare technical documentation and support the team in resolving complex technical issues. Mentor junior developers and assist with their upskilling. Must-Have Skills: (Candidate should be proficient in ateast one of the following areas) Backend : Node.js, Express.js Java, Spring Boot API Integration (REST / GraphQL) Database: MongoDB, PostgreSQL, MySQL, Redis Frontend : React.js, Next.js JavaScript / TypeScript HTML5, CSS3, Responsive Design Frontend Performance Optimization Mobile App Development : Native Android (Java / Kotlin) Native iOS (Swift / Objective-C) Experience with Android Studio / Xcode Familiarity with mobile API integration and app store deployment Must-Have Qualifications: Bachelors or Masters degree in Computer Science, IT, or a related field. 812 years of professional development experience in backend, frontend, or mobile app development. Minimum 2 years of experience in team leadership, project ownership, or technical management. Strong experience in code optimization, debugging, and API-based architecture. Familiarity with Agile/Scrum methodologies and tools like JIRA, Trello, etc. Good communication skills and ability to work collaboratively across teams. **Experience in startups or fast-paced agile teams

NodeJS/NestJS Developer (4+ Years) kolkata,bengaluru 4 - 7 years INR 6.0 - 12.0 Lacs P.A. Work from Office Full Time

Responsibilities: Design and implement robust backend services using TypeScript and NestJS, with a focus on security and performance. Integration of user- facing elements developed by front- end developers with server side logic Writing reusable, testable, and efficient code Design and implementation of low- latency, high- availability, and performant applications Implementation of security and data protection Integration of data storage solutions Skills and Qualifications Strong proficiency in TypeScript, Javascript , Nest.js Understanding the nature of asynchronous programming and its quirks and workarounds Good understanding of server- side CSS pre-processors Basic understanding of front- end technologies, such as HTML5, and CSS3 Understanding accessibility and security compliance User authentication and authorization between multiple systems, servers, and environments Integration of multiple data sources and databases into one system Understanding fundamental design principles behind a scalable application Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform Creating database schemas that represent and support business processes - Should have database experience in MySQL, MongoDB, or any other RDBMS. Implementing automated testing platforms and unit tests Proficient understanding of code versioning tools, such as Git Qualification: UG : B.Tech/B.E./ BCA/ B.Sc PG : MCA /M.Tech

Urgent hiring For JAVA developer (4+ yrs) kolkata,bengaluru 4 - 7 years INR 6.0 - 12.0 Lacs P.A. Work from Office Full Time

About the Role: We are seeking a skilled Java Developer with Minimum 4+ years of relevant experience in Spring Boot, to design, develop, and maintain robust, scalable applications that meet our business needs. The ideal candidate will possess a deep understanding of both relational and NoSQL databases, microservices architecture using Spring Cloud, and will have experience with Kubernetes, RabbitMQ, and RESTful APIs. This role requires a blend of solid technical skills, a problem-solving mindset, and the ability to gather requirements effectively. Key Responsibilities: Develop and maintain high-quality software applications using Spring Boot and other relevant Spring technologies. Design and implement scalable solutions for Micro Service Architecture, ensuring efficient data handling and processing between services. Work closely with cross-functional teams for requirement gathering, understanding business needs, and translating them into technical specifications. Develop and maintain RESTful APIs to support application functionality. Implement and manage connections to RDBMS and NoSQL databases, ensuring data integrity and performance. Utilize Spring Cloud for building microservices-based architecture, ensuring scalability and resilience. Design and implement solutions using Kubernetes for container orchestration, enhancing deployment processes and system scalability. Integrate RabbitMQ for asynchronous messaging and event-driven architectures. Apply best practices in data structures and algorithms to solve complex problems efficiently. Foster a culture of continuous improvement by staying up-to-date with emerging technologies and trends. Collaborate with team members to ensure best practices in software development, including code reviews, testing, and documentation. Professional Attributes: Strong problem-solving skills with the ability to work in a fast-paced, collaborative environment. Excellent communication skills, capable of effectively conveying technical concepts to both technical and non-technical stakeholders. Proven leadership qualities with the ability to mentor junior developers and contribute to the team's growth. Educational Qualifications: Bachelor's degree in Computer Science, Engineering, or a related field. Master's degree or any postgraduate qualification is a plus. Technical Experience: Proficiency in Java, Spring Boot, Spring Cloud, and microservices architecture. Experience with RDBMS (e.g., MySQL, Oracle) and NoSQL databases (e.g.MongoDB, Redis). Strong understanding of Kubernetes, RabbitMQ, RESTful APIs, data structures, and algorithms. Familiarity with batch processing techniques and tools. Knowledge of DevOps practices, including CI/CD pipelines, is desirable. Minimum 3+ years of relevant experience.

Urgent Hiring - ReactJS/Next JS 5+yrs (Immediate Joiners needed) kolkata,bengaluru 5 - 8 years INR 7.0 - 15.0 Lacs P.A. Work from Office Full Time

[BELOW 5yrs experience candidates should avoid applying for this job] Role & Responsibilities Develop, test, and maintain highly responsive web applications using ReactJS and NextJS . Translate business requirements into clean, efficient, and scalable front-end solutions. Design and implement HTML, CSS, and JavaScript with strong attention to UI/UX. Perform API integration with backend services and ensure smooth communication between frontend and backend. Optimize applications for maximum performance and scalability. Collaborate with cross-functional teams (designers, backend developers, QA, PMs) to deliver high-quality features. Participate in requirement analysis , provide technical feasibility inputs, and propose effective solutions. Ensure timely delivery of tasks while adhering to project deadlines. Maintain code quality, perform reviews, and follow best practices in development. Preferred Candidate Profile 5+ years of professional experience in front-end development with a strong focus on ReactJS and NextJS . Excellent skills in HTML5, CSS3, JavaScript (ES6+), and responsive design principles . Hands-on experience in API consumption and integration . Strong understanding of React concepts such as hooks, state management, lifecycle, and component-based architecture. Experience in NextJS features like SSR, SSG, routing, and API routes. Ability to analyze requirements and deliver within strict timelines. Good problem-solving skills and attention to detail. Strong communication skills and ability to work independently or in a team. [CAREER GAP OF MORE THAN 3MONTHS SHOULD AVOID APPLYING]