Node JS developer

Location: Hybrid (Bangalore)

Travel: Quarterly travel to Seattle(US)

Education: B.Tech from premium institutes only

Note: Only immediate joiners required/ 0 to 15 Days — no other applications accepted.

Role Summary

We are seeking top-tier Lead Engineers who can design, build, and deliver large-scale distributed systems with high performance, reliability, and operational excellence. The ideal candidate will be a hands-on engineer with expert system design ability, deep understanding of distributed architectures, and strong communication and leadership skills.

The Lead Engineer must be able to convert complex and ambiguous requirements into a fully engineered architecture and implementation plan covering components, data flows, infrastructure, observability, and operations.

Key Responsibilities

1. End-to-End System Architecture

• Architect scalable, reliable, and secure systems from initial concept through production rollout.
• Define system boundaries, components, service responsibilities, and integration points.
• Produce high-level (HLD) and low-level design (LLD) documents.
• Ensure designs meet performance, reliability, security, and cost objectives.
• Make informed design trade-offs with solid technical reasoning.

2. Component & Communication Design

• Break complex systems into independently deployable services.
• Define APIs, communication contracts, data models, and event schemas.
• Apply modern architecture patterns such as microservices, event-driven design, DDD, CQRS, and hexagonal architecture.
• Ensure component clarity, maintainability, and extensibility.

3. Communication Protocol & Middleware

• Design both sync and async communication layers: REST, RPC, gRPC, message queues, event streams (Kafka/Kinesis/Pulsar).
• Define retry/timeout strategies, circuit breakers, rate limiting, and versioning strategies.
• Handle backpressure, partitioning, delivery semantics (at-least/at-most/exactly once).

4. Data Architecture & Storage Strategy

• Architect data models and storage strategies for SQL and NoSQL databases, distributed caches, blob stores, and search indexes.
• Define sharding/partitioning, replication, consistency, indexing, backup/restore, and schema evolution strategies.
• Design real-time and batch data processing pipelines.

5. Operational Readiness

• Define observability (metrics, logs, traces) requirements.
• Collaborate with DevOps to ensure deployment, monitoring, alerts, and incident management readiness.
• Provide production support as a senior technical owner.

6. Leadership & Influence

• Lead technical discussions, design reviews, and cross-team collaboration.
• Mentor engineers and help elevate team practices.
• Influence technology direction and architectural standards.

Required Qualifications

• 10+ years of professional software engineering experience with strong backend and distributed systems background.
• Proven track record of leading large-scale architecture and delivery of production systems.
• Expert in system design with the ability to simplify ambiguity and craft robust solutions.
• Strong programming experience in one or more languages (Java, Go, Python, C++).
• Deep understanding of distributed systems, message streaming, queues, RPC/REST, and event-driven architecture.
• Experience with cloud platforms (AWS/Azure/GCP) and container technologies (Kubernetes/Docker).
• Strong communication, documentation, and leadership skills.

Preferred Skills

• Experience with large-scale messaging/streaming (Kafka/Pulsar), caching, and NoSQL.
• Experience designing for high availability, fault tolerance, and performance at scale.
• Mentoring and leading global engineering teams.
• Familiarity with observability tooling (Grafana, Prometheus, Jaeger). 

Job Overview:

We are looking for a Java React Developer to join our development team. The ideal candidate will have experience working with Java (Spring Boot) for backend development and React.js for frontend applications. You will be responsible for building scalable web applications, integrating RESTful APIs, and ensuring a seamless user experience.

Key Responsibilities:

• Develop and maintain web applications using Java (Spring Boot) for backend and React.js for frontend.
• Design and implement RESTful APIs for communication between frontend and backend.
• Optimize applications for speed, scalability, and security.
• Work with databases such as MySQL, PostgreSQL, or MongoDB.
• Write clean, maintainable, and efficient code following best practices.
• Collaborate with cross-functional teams, including designers, product managers, and other developers.
• Perform unit testing, integration testing, and debugging.
• Participate in Agile methodologies like Scrum and Sprint planning.
• Deploy applications using CI/CD pipelines and cloud platforms (AWS, Azure, or Google Cloud).

Required Skills:

• Java & Spring Boot (Core Java, REST APIs, Microservices, JPA, Hibernate).
• React.js (Hooks, Redux, Context API, Functional Components).
• Experience with HTML, CSS, JavaScript, and TypeScript.
• Strong knowledge of RESTful APIs and Web Services.
• Experience with databases like MySQL, PostgreSQL, MongoDB.
• Understanding of JWT/OAuth for authentication.
• Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
• Knowledge of Docker and Kubernetes is a plus.
• Experience with unit testing frameworks (JUnit, Jest, Mocha) is a plus.

Rejolut is one of the award winning fastest growing emerging tech company which is working on leading technology like Blockchian, ML & AI, Complex mobile & web apps, IoT etc.

The ideal candidate will be responsible for developing highly scalable and secure code.

Responsibilities:-
-Able to take the Extreme Ownership of modules/product/projects
-Able to learn & implement new technology/framework/library at God Speed
-Able to come with optimal solution for the business problem
-Can handle calls with the client & customer to know their feedback
-Writing clean code & able to dig into other's code or open source code

Desired Candidate Profile:-

• At least three years’ experience with:
  • Writing HTML, CSS, and JavaScript. Being up on latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum)
  • A relevant back-end programming language ( e.g.Python, Ruby or JavaScript )
  • Database design and management, including being up on the latest practices and associated versions
  • Server management and deployment for the relevant environment
• Familiarity with a relevant and globally supported framework—both front-end and back-end, if necessary—( e.g., React, Vue or Angular)
• Ideally, familiarity with CSS preprocessors, bundlers, and associated languages/syntaxes/libraries ( e.g., Sass, Less, and webpack )
• Thorough understanding of user experience and possibly even product strategy
• Experience implementing testing platforms and unit tests
• Proficiency with Git 
• Appreciation for clean and well documented code

Culture

- Fast-paced, intellectually stimulating, steep learning, and growth

- Close-knit, hardworking, supportive colleagues

- Challenging work

- Flat organization with no hierarchy

- If you like problem solving, and love latest technology, there are very few better places

How we are different 
 -We are young and dynamic team who are obsessed with solving business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to business problem rather than technology

 Why to join us
 -We provide huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company ho are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry

We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full stack developers are responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Full stack developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.

Full Stack web developer responsibilities:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Staying abreast of developments in web applications and programming languages.

Job Types: Full-time, Fresher

Salary: ₹25,000.00 - ₹55,000.00 per month

• Bachelors in Computer Science, Information Systems or equivalent.
• 6 years experience delivering highly available web/mobile applications including 1-3 years as Senior/Lead developer.
• Prior experience in retail domain is a plus.
• 3 years of experience working with distributed teams.
• Deep knowledge of UI Libraries / Frameworks, API (REST), API Management and building scalable and high performance Web APIs.
• Must have experience building websites using Javascript and Java technologies (e.g. Typescript, Spring Boot etc.). Search Engine and Native App development experience is a plus.
• AWS Serverless Cloud native services experience with Lambda functions, SNS, SQS, DynamoDB, API Gateway etc.
• Strong knowledge of Caching frameworks, data structures, algorithms, operating systems, and distributed systems.
• Strong understanding of databases, NoSQL data stores, storage and distributed persistence technologies.
• Strong communication and presentation skills.
• Passionate about enabling next generation experiences.
• Experience with automated testing, deployment pipelines and cloud based infrastructure

• Develop omni-channel digital solutions leveraging serverless and micro services in a cloud based platform to develop backend services.
• Design high/low level solutions, contribute towards architecture and technical roadmap.
• Lead technical implementation/delivery.
• Host/Lead technical discussions.
• Champion software development best practices, test driven development, CI and CD.
• Build cloud native and highly cost efficient solutions.
• Innovate, Unlearn and Disrupt. Research next generation frameworks and technologies.
• Embrace change. 

Skills Required

• 8+ years of industry work experience
• Proven experience as a Full Stack Developer or similar role
• 3+ years of web application development with JavaScript as full stack
• Full stack experience designing and building scalable applications from end-to-end 
• Excellent JavaScript / Typescript skills
• Strong proficiency in React (hooks knowledge is plus)
• Strong proficiency in Nodejs
• Good HTML5 / CSS3 skills with expertise on responsive web design 
• Must have Design and development experience in Micro services using NodeJS and TypeScript
• Experience with NoSQL databases such as MongoDB, mongoose, aggregation framework and Redis 
• Experience with Web sockets and related frameworks (e.g. Socket.IO) 
• Experience in using and developing GraphQL APIs
• Experience in performance tuning
• Knowledge of code versioning tools such as Git, Mercurial or SVN.
• Open minded to take up any challenge, research and provide solutions 
• Great attention to detail
• Testing libraries – jest, testing-library is plus
• TDD / BDD experience is plus
• Experience with AWS, K8S, CI/CD is plus
• Familiar with SDLC methodologies like SCRUM, AGILE, Continuous Integration

• Design – Analyze, design & document the system / solution based on the business needs which is scalable, resilient and maintainable with low overhead for both client and server side
• Problem solving – Solve the challenges and problems faced by team by guiding and team with best practices
• Coordinate - Communicate system requirements to developers; explain system structure to them and provide assistance
• Code Reviews – Perform code reviews 
• Planning – Plan and assign tasks to team members
• Develop – Develop micro services and micro frontends

Work Environment Details:

Founded in 2011 and trusted by companies across 70 countries and more, KnowledgeHut is the skills solutions provider that organizations and individuals the world over count on to innovate faster and create progress.
We help technologists master their craft and take control of their careers. We empower businesses everywhere to build adaptable teams, speed up release cycles and become scalable, reliable, and secure.  
Our mission to democratize technology skills is what drives us, and our values are at the helm of how we work together. We thrive in an environment with creativity around every corner, challenges that keep us on our toes, and peers who inspire us to be the best we can be.  
If you have the development skills required and are excited to come to work every day knowing you’re helping our customers build the skills that power innovation, we want to hear from you!

Role Description:

• Lister is actively engaged with client across digital transformation and engineering
• As a part of this engagement, you will be working with our clients on solution design and architecture, technology decisions, while co-ordinating technical efforts for the team
• As a Technical Lead:, You will need to collaborate with Solution Architects define technology
• roadmap, evaluate/recommend technologies, architect and design solutions, Work
• with other developers to oversee the development and implementation
• You will translate functional requirements from business stakeholders to the technical
• team for implementation
• You will need to troubleshoot design flaws and system bottlenecks
• You will have to be hands-on with code reviews and evaluate implementation for performance and scale
• Manage communication between our clients and internal teams in India and USA
• Coordinate with the offshore team to deliver projects across work streams, Identify risks, issues and blockers to progress and mitigate them for the team
• Rapidly gain an understanding of project requirements and drive execution
• Work with delivery team to ensure the highest quality of materials are being produced and all client needs are met.

Skills Required:

• Excellent understanding of backend and frontend components in the following stack: NodeJS, TypeScript, Javascript, ReactJS, multiple RDBMS and NoSQL databases like Postgres, MySQL, MongoDB Experience of working on AWS services (Lambda, Step functions, SQS, S3 SNS)
• Microservice design pattern is a must
• Experience in Docker, Kubernetes, containerization and CI/CD pipelines is preferable
• Experience in software development tools like Prettier, CodeCov, Snyk, etc..
• Excellent verbal and written communication skills; client facing and interpersonal skills; must be a listener, a presenter, and a people-person
• Experience in Designing scalable architecture systems for Node-based applications
• Ability to grasp complex implementations; Proven results of delivering client solutions
• Should have experience of working with offshore team
• Experience in working on large scale technology transformation projects for product companies is preferable
• Technology contributions to open source projects will be an added advantage
• Should have completed Certifications or training on AWS (AWS Solutions Architect), NodeJS, front-end frameworks.