295 Expresjs Jobs - Page 12

Job Description As a Full Stack Developer, you will be responsible for designing, developing, and maintaining web applications that provide an exceptional user experience. You will work closely with cross-functional teams to ensure all aspects of the web application are optimized for performance and scalability. Roles and Responsibilities: Develop and maintain web applications using JavaScript frameworks such as React, Node.js, and Express. Collaborate with designers and product managers to translate UI/UX wireframes into functional code. Implement responsive web design principles to ensure applications render well across different devices. Optimize applications for maximum speed and scalability. Conduct code reviews and provide constructive feedback to other team members. Troubleshoot and debug issues across the full stack. Stay updated with emerging technologies and industry trends to continuously improve development processes. Skills and Qualification: Bachelor's degree in Computer Science, Engineering, or a related field. Proven experience as a Full Stack Developer or similar role. Strong understanding of JavaScript, HTML5, and CSS3. Experience with frontend frameworks like React.js. Proficiency in server-side languages such as Node.js and Express. Familiarity with database technologies like MongoDB, MySQL. Excellent problem-solving skills and attention to detail.

Job Title : Full stack developer (MERN) Experience : 1 to 2 years Location : Chennai Job Summary: We are looking for a Full Stack Developer with hands-on experience in developing POS (Point of Sale) applications using React, Redux, Node.js, Express.js, and MySQL. The ideal candidate will also be proficient in Git, API integration, and writing unit and API tests. You will be responsible for developing scalable and reliable web-based POS systems, integrating hardware where needed, and maintaining high-quality code. Key Responsibilities: - Develop responsive POS interfaces using React.js and Redux - Create and manage backend APIs with Node.js and Express.js - Design and optimize MySQL database structures and queries - Integrate RESTful APIs using Axios - Write and maintain unit, integration, and API tests - Work with Git for source control and team collaboration - Debug and resolve POS-related issues including syncing, printing, and offline behavior Required Skills: - Strong experience in JavaScript (ES6+) - Proficient in React.js, Redux, and component-based architecture - Backend expertise with Node.js and Express.js - Solid knowledge of MySQL schema design, joins, indexing - API handling via Axios - Testing using tools like Jest, Mocha, or Supertest - Experience with Git (cloning, branching, merging, pull requests) - Prior experience developing or maintaining POS systems Nice to Have: - Understanding of hardware integration (e.g., printers, barcode scanners) - Experience with offline-first web apps or service workers - Familiarity with CI/CD, Docker, or PM2 - Exposure to TypeScript or mobile hybrid POS solutions (React Native) Qualifications: - Bachelors degree in Computer Science, Engineering, or related field - Minimum [1-2+] years of experience as a Full Stack Developer with at least 1 year in POS application development

We are seeking a talented individual to join our Mercer Tech at MMC Corporate . This role will be based in Noida/Gurugram. This is a hybrid role that has a requirement of working at least three days a week in the office. We are seeking a highly skilled MEAN Stack Developer to join our dynamic team. The ideal candidate will have extensive experience in developing scalable web applications using the MEAN stack (MongoDB, Express.js, Angular, Node.js) and understanding of react and AWS services will be an added advantage along with .Net and API hands on. Role & responsibilities Participate in high and low level design activities Designing, developing & delivering end to end software solution Ensure reusability, security, performance and standard industry coding practices and pattern Creating high and low level technical specification documents Conduct code review Function as part of a highly collaborative team Take end to end ownership on project modules owned Should own application build and deployment using available DevOps ecosystem Able to implement technical solutions end to end and able to resolve technical hurdles independently supervision/direction Must be able to work without solutions/recommendations Able to discover technical requirements comparing different application versions; able to propose efficient & quality Should have worked with Agile Methodologies Excellent analytical and effective communication skills Able to introduce, lead and implement software engineering best practices Proactive in proposing new ideas and solutions Motivated to learn and apply new technologies Good command of English (communication with colleagues abroad) Creating self-contained, reusable, and testable modules and components What you need to have: At least 5 years of experience on applications development using MEAN React JS, AWS and API understanding will be an added advantage Good understanding of cyber security guidelines Hands On Work Experience on above mentioned technologies Experience in Git and continuous integration Good team player, able to learn and share knowledge Proactive in proposing new ideas and solutions Motivated to learn and apply new technologies Good understanding of cyber security guidelines Experience in Git and continuous integration Strong communication and collaboration skills. Should be well versed with DevOps Preferred candidate profile : What makes you stand out? AWS and React JS experience Micro services experience Snyk and GitGuardian Agile methodology

Hiring Node.js Developer (3 to 6 yrs) in Ahmedabad. Strong in Node, Express, NestJS, Python, SQL, TypeScript, Git. Skilled in REST APIs, system design, OOP, Agile. Good client communication, deployment, Linux knowledge a plus."

We are looking for a skilled and experienced Backend Developer (Node.js) to join our growing team in Kolkata . The ideal candidate must have a strong command over Node.js and related backend frameworks, with a proven track record of building scalable and efficient server-side applications. Role & responsibilities Develop, test, and maintain high-performance backend services and APIs using Node.js. Build server-side logic using Node.js frameworks such as Express.js and NestJS . Design and implement scalable RESTful APIs and ensure seamless integration with frontend systems. Write clean, efficient, and secure code while following industry best practices. Optimize backend performance and troubleshoot production issues. Collaborate with frontend developers, QA, and DevOps teams to deliver end-to-end solutions. Participate in code reviews, sprint planning, and technical discussions. Preferred candidate profile Backend Technologies: Strong hands-on experience in Node.js (with Express.js , NestJS ) Additional Skills: Solid understanding of RESTful API design , MVC architecture , and backend security best practices . Experience with MySQL or other relational databases. Familiarity with Linux-based environments for server-side deployment. Proficient in version control systems (Git). Understanding of authentication mechanisms, session management, and data validation. Preferred Qualifications: Bachelors degree in Computer Science, Information Technology, or a related field. 3 to 10 years of backend development experience. Strong debugging, analytical, and problem-solving skills. Excellent communication and teamwork abilities. Experience working in Agile/Scrum environments. Good to Have: Experience with cloud services (AWS, Azure, or GCP). Familiarity with testing frameworks such as Mocha, Chai, or Jest. Knowledge of security best practices for web applications

Principal Engineer SailPoint We are looking for Full stack developer with Identity and Access Lifecycle management experience, with 5+ years of relevant experience, capable of delivering enterprise solutions. Technically, you will be comfortable working using Agile methodologies in a Scrum/SAFe environment, and have proven experience designing, building and managing enterprise application with modern authentication capabilities for Cloud and self-hosted applications. You will be working towards improving the maturity of IAM capabilities within GSK driving security and user experience. Your responsibilities include: Design, development and implementation of the IAM related business process. The role involves contributing to the end-to-end identity and account lifecycle processes within GSK. The primary responsibilities include ensuring provisioning/ deprovisioning secure management of access to applications and resources both on-premises and in the cloud. Supporting the product owner and architects in the entire lifecycle of user identities, from provisioning and modification to de-provisioning, ensuring accurate and timely access rights. Ensure that GSK's regulatory requirements are met and continuously evolve and improve the underlying processes, strategies, and roadmap of capabilities and offerings by adopting new technologies where beneficial (such as automation, AI/ML, analytics, etc.). Assist the IAM team and be POC for compliance with authorities during test of control verification. Act as the SME for IAM technologies, including but not limited to Identity Governance and Administration (IGA), Account and Access provisioning / deprovisioning, Access reviews, Identity & Access Reporting, Integration with HR source applications, Password management. Ensure the security of IAM systems by implementing best practices and monitoring for vulnerabilities. Work with IT teams and stakeholders to understand requirements and provide technical support. Maintain comprehensive documentation of configurations, processes, and protocols. Continuously evaluate and implement new IAM technologies and best practices to enhance security and efficiency. Why you? Basic Qualifications: Extensive hands-on experience in developing and deploying enterprise applications for Identity and Access Management (IAM) business processes using Next.js and Express.js . Skilled in implementing Micro Frontend architecture for web applications, leveraging Next.js and Webpack. Capable of understanding complex data requirements and designing GraphQL schemas tailored for enterprise IAM services. Proven expertise in implementing resolvers for diverse data sources, including Active Directory, Entra ID, various databases, and REST/SOAP APIs. Proficient in integrating guardrails and security measures within GraphQL schema implementations. Advanced knowledge of TypeScript-based development and deployment in cloud serverless or containerized environments. Expertise in designing abstraction layers to simplify complex systems and isolate business logic, facilitating seamless integration between various IAM components and services. Experience in orchestrating cross-functional business processes to enable seamless end-to-end workflows, ensuring alignment across diverse enterprise systems and departments. Strong problem-solving abilities with hands-on experience in debugging and resolving system errors. Comprehensive understanding of testing phases and expertise in managing traceability during testing processes. Proficiency in using GitHub and Azure DevOps for version control and CI/CD pipeline management. In-depth knowledge of IAM processes in enterprise environments, with a focus on security posture and compliance implementation. Proficient in managing and working with various database solutions, including Azure SQL, IaaS SQL, Oracle, and NoSQL databases. Familiarity with application security best practices and tools for safeguarding enterprise systems. Excellent verbal and written communication skills to convey technical concepts effectively to non-technical stakeholders. Solid understanding of audit and regulatory compliance, with the ability to engage with compliance authorities. Expertise in integrating IAM systems with LDAP, EntraID and Active Directory (AD). Familiar with cloud IAM solutions and services offered by Microsoft Azure and other cloud providers. Education: Bachelors degree in computer science, Information Technology, or a related field. Soft Skills: Outstanding problem-solving capabilities, strong communication skills, and a collaborative team-oriented mindset. Preferred Qualifications: Proficiency in scripting languages such as TypeScript, JavaScript, and .NET for automating IAM workflows and processes. Advanced knowledge of frameworks like React and front-end technologies, including HTML, CSS, and TypeScript/JavaScript. Experience in developing automated unit tests and conducting static and dynamic code analyses. Skilled in building and deploying web applications via CI/CD pipelines using GitHub Actions or Azure DevOps. Expertise in deploying, managing, and monitoring applications in cloud environments like Microsoft Azure or Google Cloud. Previous experience working within a centralized IT team in highly regulated industries, such as pharmaceuticals or financial services. Demonstrated experience in establishing governance frameworks for Agentic AI solutions within enterprise environments. Familiarity with implementing business process solutions utilizing Agentic AI design principles. Role & responsibilities Preferred candidate profile

DevForge Technology Pvt. Ltd. is hiring a Senior Full-Stack Engineer (5–8 yrs, On-site). Work on global projects using React, Node.js, AWS/GCP. Lead end-to-end development & innovate. Apply: hr@trydevforge.com

Job Title: MERN Stack Developer Location: Nagpur, MH Job Type: Fulltime Experience Level: 3+years Key Responsibilities: Experience: Proficient in developing interactive, user-friendly applications using the MEAN/MERN technology stack. Skilled in creating front-end web applications with a focus on user experience and functionality. Experienced in building servers and databases to support application functionality. Proficient in API design, creation, and integration to ensure seamless communication between different components. Stays updated on the latest developments in web applications, app development, and programming languages. Effective communication with diverse stakeholders to understand and address project requirements. Collaborates as a key team member in the development of applications and services, following Agile development methodologies. Possesses strong problem-solving, debugging, and analytical skills. Strong knowledge of Object-Oriented JavaScript, ES6, or TypeScript. Experience in developing applications using Node.js, AngularJS, Angular 2+, and ReactJS. Good understanding of coding standards, design patterns, and the importance of unit testing. Proficient in Data Structures and Algorithms. Skilled in API design and development. Proficient in using code version control tools such as Github and Bitbucket. Leadership Skills: Demonstrates the ability to work effectively as part of a development team following Agile practices. Provides effective communication with various stakeholders to gather requirements and collaborate on project development. Technical Knowledge: Proficient in MEAN/MERN technology stack for web application development. Skilled in front-end development, server-side implementation, and database design. Strong grasp of API design and integration principles. Stays updated on industry developments in web applications, app development, and programming languages. Familiar with coding standards, design patterns, and unit testing practices. Strong foundation in Data Structures and Algorithms. Cloud Services: While cloud services are not explicitly mentioned, experience with cloud platforms like AWS or Azure can be inferred based on the skills described. Communication: Effectively communicates with various stakeholders to understand project requirements and ensure successful collaboration. Problem Solving: Demonstrates strong problem-solving, debugging, and analytical skills, which are essential for identifying and resolving technical challenges during application development. Proficiently uses code version control tools like Github and Bitbucket to facilitate collaborative development.

Min 3yrs experience in M.E.R.N can apply for this role

Mandatory exp - 5 yrs FullStack development in MongoDB, ExpressJS, ReactJS,Node.JS & CSS Strong experience in TDD/BDD Knowledge of cloud platform & web technologies Web servers, especially nginx. Experience with one or more SQL or NoSQL

Proficiency in Python with Django/FastAPI or JavaScript with Node.js, Express.js, or NestJS. Experience with relational databases such as PostgreSQL/MySQL and familiarity with NoSQL databases. Strong experience building RESTful or GraphQL APIs. Perks and benefits Reimbursements Provident Fund Work from home

Roles and Responsibilities : Design, develop, test, deploy and maintain scalable Node.js applications on cloud platforms such as AWS or Microsoft Azure. Collaborate with cross-functional teams to identify requirements and implement solutions that meet business needs. Ensure high availability, performance, security and scalability of the application by following best practices in software development. Troubleshoot issues related to database interactions using technologies like PostgreSQL or MongoDB. Job Requirements : 2-10 years of experience in developing Node.js applications with expertise in ExpressJS framework. Strong understanding of cloud computing concepts including deployment strategies for multiple cloud providers (AWS/Azure). Proficiency in working with relational databases such as PostgreSQL or MongoDB. Experience with containerization using Docker containers.

Develop and maintain responsive front-end interfaces using React.js and related technologies (Redux, Hooks, Context API). Build robust backend services and APIs using Python frameworks such as Flask or Django. Ensure application security and data protection best practices throughout development. Integrate front-end components with server-side logic and third-party APIs. Write reusable, testable, and efficient code with a focus on quality and maintainability. Perform thorough testing and debugging to optimize application performance and usability. Collaborate with cross-functional teams to define, design, and ship new features. Maintain version control workflows using Git or similar tools. Participate in code reviews, documentation, and knowledge sharing to uphold coding standards. Qualifications and Skills: Bachelors degree in Computer Science, Software Engineering, or a related field (preferred). 3+ years of hands-on experience in React.js development, including familiarity with state management tools (Redux, MobX). Strong proficiency in Python and experience with web frameworks Flask or Django. Strong background in relational (PostgreSQL/MySQL) and/or NoSQL (MongoDB) databases, including data modeling and migrations. Solid understanding of HTML5, CSS3, JavaScript (ES6+), and RESTful APIs. Proven experience deploying and maintaining production applications (Docker, Kubernetes, or major cloud platforms like AWS/GCP/Azure). Solid grasp of RESTful API design, authentication methods (OAuth/JWT), and integration with third-party services. Familiarity with version control (Git), CI/CD pipelines, and Agile/Scrum methodologies. Ability to work independently, self-manage workload, and handle the full product lifecycle in a lean team setup. Familiarity with Agile development methodologies. Strong problem-solving skills, attention to detail, and ability to write clean, maintainable code. Excellent communication skills and ability to work effectively in a team.

Locations: Bangalore, Pune, Mumbai, Chennai, Hyderabad, Noida Notice Period: Immediate to 20 Days max Role & responsibilities Architecture, design, development, deployment and monitoring of innovative solutions. Should be well versed with Node JS, React Js, TS, Bootstrap, Java script, HTML, CSS, Python, middleware, Open source, MySQL, Elastic search, Marklogic and cloud-infra (AWS ) architecture. Deep knowledge of cutting edge contemporary technologies to provide futuristic solutions. Proven architecture and leadership experience producing end-to-end solutions rapidly. Including System Integration and platform integration Lead solutioning on behalf of client, lead large programs as technology owner Strong business and technology decision making skills are required Define and ensure team's deliveries adhere to non-functional requirements and schedule. Troubleshooting and resolving issues with coding or design Expert in devising and documenting best fit solutions Experience working with integration/API patterns. Designing microservices architecture Architecture development using AWS services and cloud agnostic solutions Innovation and value addition is a key responsibility. Challenge status quo Ability to lead a group of internal and external tech leads and development team Run an architectural development process, design explanations and collaborate with application development teams, architects, Business, 3rd parties and customer DevOps and DevSecOps experience Ability to discover and define functional requirements, interview experts, and transform them into technical requirements and architecture definition Outstanding written and verbal communication skills and effectively influence decisions and positively Experience with Agile Methodology, Design thinking, working with ambiguity, find own path Always ready to learn, work on self-development and team's capability development Lead development teams for multiple project Establish good coding practices Handson in width of the technology

Job Title: Full Stack Developer Location: Noida Experience: 3+ years Employment Type: Full-Time About the Role We are seeking a Full Stack Developer with strong expertise in modern web frontend technologies like React.js or similar frameworks (e.g., Vue.js, Next.js, Vite, Angular). The role is primarily frontend-focused, with the flexibility to contribute to backend development using Node.js when needed. Key Responsibilities Build responsive and high-performance web applications using React.js or similar modern frontend frameworks ¢ ¢ Translate designs and wireframes into clean, reusable code Optimize applications for maximum speed, scalability, and maintainability Work closely with design, product, and backend teams to integrate APIs and enhance user experience ¢ ¢ (Optional) Support backend development tasks using Node.js, Express, and databases like MongoDB or PostgreSQL Maintain code quality through reviews, documentation, and testing Must-Have Skills ¢ ¢ Proficiency in React.js, Vue.js, Angular, or other modern JavaScript frameworks Strong knowledge of JavaScript (ES6+), HTML5, CSS3, and responsive design principles ¢ ¢ ¢ Experience in integrating and working with RESTful APIs Familiarity with version control systems such as Git Understanding of component-based architecture and state management (Redux, Context API, Vuex, etc.) Good-to-Have (Optional) ¢ Experience with backend development using Node.js, Express.js, and NoSQL/SQL databases ¢ ¢ Familiarity with deployment tools, CI/CD, or containerization (Docker) Knowledge of TypeScript, Next.js, or GraphQL ¢ Experience with frontend testing frameworks like Jest or Cypress Qualifications ¢ ¢ Bachelors degree in Computer Science, Engineering, or a related field 3+ years of hands-on experience in modern web application development Why Join Us? ¢ ¢ ¢ Work with modern tech stacks and real-world projects Opportunity to expand across full stack based on interest A collaborative, learning-focused culture

We are looking for a Mern Stack Developers who have 1.5+ years of experience mainly on Node.js, React, MongoDB and who have knowledge on Payment Gateway integration is added Advantage to join our IT team. You will be responsible for the server side of our web applications. You should be able to develop and maintain functional and stable web applications to meet our company's needs. Responsibilities Designing & Developing application software. Work with development teams and product managers to ideate software solutions. Write effective APIs. Test software to ensure responsiveness and efficiency. Building server-side logic, databases and APIs using languages like Node.js Good understanding of databases and SQL. Manage cutting-edge technologies to improve legacy applications. Good understanding of API rest services. Requirements and skills Work experience as a Mern Stack Developer. Developing desktop and mobile applications. In-depth understanding of the entire web development process (design, development and deployment). Knowledge of multiple front-end languages and libraries (e.g. React.js, HTML/ CSS, JavaScript, XML, jQuery) Knowledge of multiple back-end languages (e.g. Angular, React, Node.js) Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) Excellent analytical and time management skills. Teamwork skills with a problem-solving attitude.

Job Title: Python Full Stack Developer (with AWS & MERN Stack) Experience: 4-10 Years Location: Bangalore About Company The organisation is a global technology consulting and software development firm headquartered in Bangalore, India. It specialises in providing end-to-end solutions in custom software development, enterprise applications, cloud services, and product engineering. It offers a collaborative and growth-oriented work culture, encouraging continuous learning, innovation, and opportunities to work on international projects using the latest technologies. Job Summary: We are looking for a skilled and experienced Python Full Stack Developer with hands-on experience in AWS and MERN Stack (MongoDB, Express.js, React, Node.js) . The ideal candidate should have a strong foundation in backend development using Python and frameworks like Django or Flask, while also being confident in building and maintaining frontend applications using React.js. This role offers an exciting opportunity to work on dynamic, scalable applications in a collaborative and fast-paced environment. Key Responsibilities: Design, develop, test, and deploy scalable web applications using Python and the MERN stack. Build and manage RESTful APIs and backend services. Develop user-facing features using React.js, ensuring high performance and responsiveness. Work with AWS services like EC2, Lambda, S3, RDS, and API Gateway for application deployment and scalability. Optimize applications for maximum speed, scalability, and security. Collaborate with product managers, designers, and other developers to deliver high-quality solutions. Participate in code reviews, unit testing, and documentation. Troubleshoot and debug issues across the full stack. Required Skills: Strong experience in Python with frameworks such as Django or Flask Solid knowledge of MERN stack : MongoDB, Express.js, React.js, Node.js Hands-on experience with AWS services (EC2, Lambda, S3, RDS, etc.) Proficiency in HTML, CSS, JavaScript, and TypeScript Experience with RESTful API design and integration Good understanding of databases both SQL and NoSQL Familiarity with DevOps practices and CI/CD pipelines (a plus) Excellent problem-solving and communication skills Ability to work independently as well as in a team. Educational Qualification: Bachelors or Master’s degree in Computer Science, Engineering, or related field.

Role & responsibilities Build dynamic, responsive frontend components using React.js (Ant Design preferred) Design RESTful APIs and integrate with internal services and external APIs (e.g., logistics, ecommerce) Work across MongoDB, MySQL, and design scalable schemas for data-intensive modules Handle business-critical logic for WMS and Accounting operations Build complex, table-driven UI workflows with filters, modals, validations, and summaries Own modules end-to-end from architecture to deployment, with minimal supervision Collaborate with DevOps (Docker, GitHub Actions), QA, and cross-functional stakeholder Preferred candidate profile 4+ years of full-time experience in software development Hands-on experience with: MERN Stack : MongoDB, Express.js, React.js, Node.js Solid understanding of OOP, MVC patterns, and secure coding best practices Strong command over MySQL and MongoDB (schema design, indexing, aggregation) Ability to manage and debug full-stack features independently Familiarity with Git version control and CI/CD pipelines Experience working with SaaS applications, ecommerce, or warehouse systems Basic knowledge of Docker, Redis, and microservice communication is a plus

Key Responsibilities: Develop and maintain scalable web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js). Collaborate with UI/UX designers and backend engineers to deliver high-quality features. Integrate third-party APIs and cloud services (AWS, Azure, GCP). Write clean, reusable, and efficient code following best practices. Optimize React components and backend services for maximum performance. Participate in code reviews and team discussions to maintain code quality. Troubleshoot, debug, and resolve issues across the full stack. Required Skills: Proficiency in React.js , Node.js , MongoDB , and Express.js . Strong understanding of JavaScript (ES6+), HTML5, and CSS3. Experience working with RESTful APIs and microservices architecture. Familiarity with Git and version control workflows. Experience working in Agile/Scrum development environments. Good to Have: Experience with cloud platforms such as AWS , Azure , or GCP . Familiarity with DevOps practices and CI/CD tools. Knowledge of performance testing and optimization techniques. Immediate joiners.

Lead design and delivery of complex end-to-end features across frontend, backend, and data layers. Make strategic architectural decisions on frameworks, datastores, and performance patterns. Review and approve pull requests, enforcing clean-code guidelines, SOLID principles, and design patterns. Build and maintain shared UI component libraries and backend service frameworks for team reuse. Identify and eliminate performance bottlenecks in both browser rendering and server throughput. Instrument services with metrics and logging, driving SLIs, SLAs, and observability. Define and enforce comprehensive testing strategies: unit, integration, and end-to-end. Own CI/CD pipelines, automating builds, deployments, and rollback procedures. Ensure OWASP Top-10 mitigations, WCAG accessibility, and SEO best practices. Partner with Product, UX, and Ops to translate business objectives into technical roadmaps. Facilitate sprint planning, estimation, and retrospectives for predictable deliveries. Mentor and guide SDE-1s and interns; participate in hiring. Qualifications & Skills 35 years building production Full stack applications end-to-end with measurable impact. Proven leadership in Agile/Scrum environments with a passion for continuous learning. Deep expertise in React (or Angular/Vue) with TypeScript and modern CSS methodologies. Proficient in Node.js (Express/NestJS) or Python (Django/Flask/FastAPI) or Java (Spring Boot). Expert in designing RESTful and GraphQL APIs and scalable database schemas. Knowledge of MySQL/PostgreSQL indexing, NoSQL (ElasticSearch/DynamoDB), and caching (Redis). Knowledge of Containerization (Docker) and commonly used AWS services such as lambda, ec2, s3, apigateway etc. Skilled in unit/integration (Jest, pytest) and E2E testing (Cypress, Playwright). Frontend profiling (Lighthouse) and backend tracing for performance tuning. Secure coding: OAuth2/JWT, XSS/CSRF protection, and familiarity with compliance regimes. Strong communicator able to convey technical trade-offs to non-technical stakeholders. Experience in reviewing pull requests and providing constructive feedback to the team.