
The Senior Developer will work on core product features, uphold architectural standards, and collaborate closely with the Team Leader to deliver high-quality, scalable solutions.
Responsibilities:
- Develop and maintain major product features
- Follow technical guidance from the Team Leader
- Ensure adherence to coding standards and system architecture
- Perform thorough testing of assigned tasks
Required Skills:
- Strong expertise in Next.js, React.js, Express.js, and PostgreSQL
- Solid understanding of system design, clean code practices, and performance optimization

About CodeDecoders
About
We are an award-winning software agency that specializes in crafting cutting-edge solutions for a variety of industries.
Our expertise spans across a wide range of areas, including Full Stack development, Blockchain Technology, and Game Development.
Tech stack
Connect with the team
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AI-Native Software Developer Intern
Build real AI agents used daily across the company
We’re looking for a high-agency, AI-native software developer intern to help us build internal AI agents that improve productivity across our entire company (80–100 people using them daily).
You will ship real systems, used by real teams, with real impact.
If you’ve never built anything outside coursework, this role is probably not a fit.
What You’ll Work On
You will work directly on designing, building, deploying, and iterating AI agents that power internal workflows.
Examples of problems you may tackle:
Internal AI agents for:
- Knowledge retrieval across Notion / docs / Slack
- Automated report generation
- Customer support assistance
- Process automation (ops, hiring, onboarding, etc.)
- Decision-support copilots
- Prompt engineering + structured outputs + tool-using agents
Building workflows using:
- LLM APIs
- Vector databases
- Agent frameworks
- Internal dashboards
- Improving reliability, latency, cost, and usability of AI systems
- Designing real UX around AI tools (not just scripts)
You will own features end-to-end:
- Problem understanding
- Solution design
- Implementation
- Testing
- Deployment
- Iteration based on user feedback
What We Expect From You
You must:
- Be AI-native: you actively use tools like:
- ChatGPT / Claude / Cursor / Copilot
- AI for debugging, scaffolding, refactoring
- Prompt iteration
- Rapid prototyping
- Be comfortable with at least one programming language (Python, TypeScript, JS, etc.)
- Have strong critical thinking
- You question requirements
- You think about edge cases
- You optimize systems, not just make them “work”
- Be high agency
- You don’t wait for step-by-step instructions
- You proactively propose solutions
- You take ownership of outcomes
- Be able to learn fast on the job
Help will be provided but you will not be spoonfed.
Absolute Requirement (Non-Negotiable)
If you have not built any side projects with a visible output, you will most likely be rejected.
We expect at least one of:
- A deployed web app
- A GitHub repo with meaningful commits
- A working AI tool
- A live demo link
- A product you built and shipped
- An agent, automation, bot, or workflow you created
Bonus Points (Strong Signals)
These are not required but will strongly differentiate you:
- Built projects using:
- LLM APIs (OpenAI, Anthropic, etc.)
- LangChain / LlamaIndex / custom agent frameworks
- Vector DBs like Pinecone, Weaviate, FAISS
- RAG systems
- Experience deploying:
- Vercel, Fly.io, Render, AWS, etc.
- Built internal tools for a team before
- Strong product intuition (you care about UX, not just code)
- Experience automating your own workflows using scripts or AI
What You’ll Gain
You will get:
- Real experience building AI agents used daily
- Ownership over production systems
- Deep exposure to:
- AI architecture
- Product thinking
- Iterative engineering
- Tradeoffs (cost vs latency vs accuracy)
- A portfolio that actually means something in 2026
- A strong shot at long-term roles based on performance
If you perform well, you won’t leave with a certificate, you'll leave with real-world building experience.
Who This Is Perfect For
- People who already build things for fun
- People who automate their own life with scripts/tools
- People who learn by shipping
- People who prefer responsibility over structure
- People who are excited by ambiguity
Who This Is Not For
Be honest with yourself:
- If you need step-by-step instructions
- If you avoid open-ended problems
- If you’ve never built anything outside assignments
- If you dislike using AI tools while coding
This will be frustrating for you.
How To Apply
Send:
- Your GitHub
- Links to projects (deployed preferred)
- A short note explaining:
- What you built
- Why you built it
- What you’d improve if you had more time
Strong portfolios beat strong resumes.
Job Title: MERN Stack Developer (5+ Years Experience)
Position: MERN Stack Developer
Location: Ahmedabad (On-Site)
Onshore Opportunity
Experience: 5 to 7
Joining: Immediate Joiners Preferred
Employment Type: Full-Time
About the Role
We are seeking a talented and experienced MERN Stack Developer to join our on-site team. As a key member of our development team, you will be responsible for building and maintaining high-performance web applications using MongoDB, Express.js, React.js, and Node.js.
Key Responsibilities
- Develop and maintain scalable, responsive web applications using the MERN stack
- Write clean, efficient, and well-documented code
- Integrate APIs and third-party services
- Work closely with UI/UX designers, QA, and product teams
- Optimize applications for maximum speed and scalability
- Perform code reviews and provide constructive feedback
- Debug and resolve technical issues and bugs
- Ensure cross-platform and cross-browser compatibility
Required Skills & Qualifications
- 5+ years of professional experience with the MERN stack
- Strong proficiency in JavaScript, ES6+, HTML5, and CSS3
- In-depth experience with React.js (including hooks, Redux, component lifecycle)
- Strong backend development skills using Node.js and Express.js
- Proficient in working with MongoDB, including aggregation, indexing, and schema design
- Experience with RESTful APIs and JSON
- Familiarity with Git and version control workflows
- Strong problem-solving and debugging skills
- Excellent communication and teamwork abilities
Must-Have Experience
- 5+ years working professionally with the MERN stack
- Has experience in a team lead role
- Expertise in JavaScript (ES6+), HTML5, CSS3
- Deep understanding of React.js (Hooks, Redux, lifecycle)
- Backend development with Node.js & Express.js
- Strong hands-on with MongoDB (schemas, indexing, aggregation)
- API integration, Git, version control, and debugging
Preferred Qualifications
- Experience with deployment on AWS, Heroku, or similar cloud platforms
- Familiarity with containerization tools like Docker
- Experience with testing frameworks such as Jest or Mocha
- Knowledge of agile methodologies
We are seeking an experienced Lead Full Stack Developer with a strong background in the MERN stack and serverless technologies. The ideal candidate will have a minimum of 6 years of experience in software development, with significant expertise in both relational (RDBMS) and NoSQL databases. You will lead a team in designing and developing scalable, high-quality solutions while ensuring best practices are followed throughout the development lifecycle.
Responsibilities:
- Develop and maintain scalable backend services using Node.js and serverless technologies such as AWS Lambda, Google Cloud Functions, or Azure Functions.
- Architect and implement front-end solutions using React.js, ensuring seamless integration with backend services.
- Design, implement, and optimise both relational (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
- Translate business requirements into robust, efficient technical solutions.
- Conduct code reviews to maintain high standards of code quality, performance, and maintainability.
- Stay updated with the latest trends and advancements in the MERN stack, serverless architectures, and cloud platforms.
- Lead and mentor a team of developers, providing technical guidance and fostering a collaborative environment.
Requirements:
- Minimum of 6 years of professional experience in software development, with at least 6 years specifically in the MERN stack.
- Proven leadership experience in managing and mentoring development teams.
- Proficiency in Node.js, Express.js, React.js, and MongoDB.
- Hands-on experience with serverless architectures, including AWS Lambda, Google Cloud Functions, or Azure Functions.
- Strong understanding of RDBMS (PostgreSQL, MySQL) and NoSQL databases (MongoDB).
- Solid understanding of RESTful APIs, microservices architecture, and cloud platforms.
- Excellent problem-solving, debugging, and collaboration
Additional Skills:
- Experience with GraphQL, Docker, and Kubernetes is a plus.
- Contributions to open-source projects are highly valued.
- Understanding of DevOps practices and CI/CD pipelines.
Requirements:
- Minimum 3 years of experience in software development into MERN (React & Node.js ) technology.
- Bachelor degree in Computer Science or IT.
- Must have Hands-On coding expertise of React.js, Reactstrap, NodeJS, MongoDB and ExpressJS.
- Configuring and managing deployment on AWS (EC2 IAM, S3).
- Knowledge of developing REST API using Express framework and front end integration with PUG engine.
- Experience with popular JS libraries like Ember, Babel, Typescript, Webpack, Socket etc.
- Exposure to scm tools like git, Git Hub, CI/CD methods, code coverage tools like SonarQube, etc.
- Good understanding of the object-oriented design and programming concepts, core JavaScript concepts like scope/closures, the event loop and asynchronous callbacks, promises, API formation, POSTMAN API etc.
and CSS.
Experience and knowledge in Python Programming, RDBMS (PostgreSQL).
Knowledge of python data types, operators, error / exception handling, logging
Good to have: Hands on coding in Python using OOPs / SOLID concepts of programming.
Good understanding of how API, REST, JWT, OAuth2.0 works, ability to provide constructive
feedback during API design phase with backend developer
Experience with React libraries like React Query, Ag-Grid, ReactStrap and component-driven
approach
Experience with Node.js and basic automation using libraries and tools like Cypress is good
to have.
Good understanding of cloud-based technologies and tools (Preference- GCP, Microsoft
Azure, Openshift)
Experience with unit, integration and E2E tests and framework/tools (Jest)
Experience with CI/CD pipelines like TeamCity, Jenkins.
Good knowledge of OWASP security guidelines.
Ability to collaborate with various other teams, like design and product team and provide
feedback during feature preparation and planning phase
Self-starter, proactive in resolving issues and removing roadblocks
Adherence to software engineering best practices
Must possess problem-solving and creative thinking ability.
Good to have experience with state management libraries like Redux, Recoil.
Good to have Risk / Investment Banking domain Knowledge.
Hands on experience of test-driven development and constant refactoring in continuous
integration environment
Behavior Driven Development, particularly experience of how it can be used to define
requirements in a collaborative manner to ensure the team builds the right thing and create a
system of living documentation
Experience working in an agile team, practicing Scrum
Ensure that the software you build is reliable and easy to support in production. Be prepared
to take your turn on call providing 3rd line support when it’s needed
We have an opening for Sr Lead Software Engineer -Full / Mern Stack Developer.
Responsibilities :
- Responsible for writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- Understanding of performance testing and optimization techniques
Requirements
- Should have the ability to translate Wireframes and PSD Designs into functional web apps using HTML5, React , Node.js, and Mongo.
- Binding of UI elements to JavaScript object models
- Creating RESTful services with Node.js
- Architect scalable web architectures
- Must have proven experience in front ( Rect.js)& back-end development (Node.js)
- Work in a cross-functional team to deliver a complete user experience
- Must know MongoDB, Express, Node.js, & React., Typescript, CSS, HTML, Bootstrap
- Create Unit and Integration tests to ensure the quality of code
- Be responsive to change requests and feature requests
- Write code that is cross-platform and cross-device compatible
- Must have the ability to wear many hats and learn new technologies quickly
- Candidate must have good Knowledge of Node Debugging
- Understanding & proficiency in REST APIs.
- Should know Git Repository and Jira.
- Integration of data storage solutions [RDBMS, NoSQL DB]
Qualifications
Having Expereince in MongoDB - Document DataBase,
Node.js —Express(.js) web framework -Backend
React(.js) — a client-side JavaScript framework along with Bootstrap , HTML5, CSS3 - Frontend
Education : B Tech , BCA or Equivalent
Relevant Experience : 3 to 9 years : Full Stack developer
Preferred Candidate : Immediate Joiner
Location: Kolkata only ( Onsite).
Job responsibility:
- Hire and mentor a team of high-calibre front-end and Backend engineers
- Design and develop new user-facing full-stack applications.
- Building reusable components and front-end, backend libraries for future use
- Optimizing pages for maximum performance across a vast array of web-capable devices and browsers
- Optimize Backend to high scale.
Skills and Experiences:
- 6+ years of experience in software development with minimum 1 year as a tech lead.
- Experience in NodeJS, ReactJS, PostgreSQL, Redis, AWS.
- Deep understanding of at least one of React JS / Vue JS and its core principles
- Deep understanding of NodeJS.
- Experience with common front-end development tools such as babel, webpack, npm
- Familiarity with at least one code versioning tools such as Git, SVN etc.
- Good understanding of quality JavaScript code (Object oriented and commonly used design patterns)
- Capable of debugging complex issues in JavaScript
- Experience in building complex single page applications with front end and backend.
- Experience with production full stack environment debugging and DevOps experience.
- Familiarity with RESTful APIs
- Hands on coding experience.
Good to have:
- Advanced knowledge of HTML5, CSS3 and responsive web development.
- Experience with writing unit test cases with JS frameworks.
- Experience with high scalable applications.
Having and Hands on experience in the particular Domain.
– JavaScript, jQuery, Angular, React/Redux, Backbone
– RSpec, Capybara, Factory Girl
– Resque, Sidekiq
– Elasticsearch, Sphinx
– Deploy with Capistrano, Mina or Heroku
– Chef, Amazon Web Services
– PostgreSQL, MongoDB, Redis, Memcached
– Active Admin
– Spree, LocomotiveCMS
– REST API
– Coffescript, HAML, SASS, LESS
Mandatory Skill set:
- Multiple solution stack development experience along with MEAN(Mongo, Express, Angular and Node)
- Python with any web framework
- Micro Services, Performance Engineering, Docker, Kubernetes, AZURE, CI/CD pipeline, , MySQL and Database design
Job Role:
- Responsible for component selection, design standardization, common library building.
- Build services and templates based on published standard (RFC type)Build coding templates and architypes adhering to design standard.
- Understand NFR and define architecture, design and validation for each NFR element.
- Design data model, service contract and document framework.Define and ensure coding standards
- Define and ensure UI standards are followed. Design micro services, security, deployment Well-versed in module level effort estimationWell-versed in application integration patterns Exposure to bug fixing, maintenance, continuous integration releases.
- Exposure to building architectural view like logical, physical and deployment.Exposure to performance bottleneck, RCA and remediation.Exposure to security issues, RCA and remediation.
Process Exposure:
- Able to interact with team, stakeholders and architects. Understand functional requirements and create design documents for features.
- Participate in sprint planning and story elaboration sessions.
- Candidate should be able to work independently in an Agile project.
- Experience with Test-Driven Development, Integration testing and Agile processes.Code review from a standard and design adherence perspective.
- He/She will be a part of a very agile short-cycle development with continuous integration in a dynamic start-up environment
- He/She will elaborate on technical concepts and actively integrate your own ideas and visions into the product
- He/She will do code reviews and support your colleagues in the daily business.
- Should have done Minimum three projects using any of these following technologies: Angular 2+
- Should have scored 7.0+ CGPA.
- Experience with building the infrastructure for serving the front-end app and assets
- Deep knowledge of AngularJS practices and commonly used modules based on extensive work experience












