MEAN/MERN Stack Developer

Senior AI Engineer — Ruby on Rails

Techjays · Coimbatore / Chennai · Hybrid · Immediate – 30 Days Notice

About Techjays

We're the AI Reimagination Company — and that's not a tagline we put on a deck. It's what we actually do.

Techjays helps global enterprises rebuild the way they operate using AI at the core: not as a pilot, not as a feature, but as a foundational layer across products, workflows, and infrastructure. We're an Anthropic partner, which means our engineers get early access to frontier models and tools before they hit the market.

Our team includes engineers and leaders from Google, Akamai, NetApp, ADP, Cognizant Consulting, and Capgemini. We run like a high-agency startup, but we build production systems that real enterprise clients depend on.

Every project is greenfield. Every line of code you write ships.

What This Role Actually Is

This isn't a "keep the monolith alive" job.

You'll be designing and building new AI-powered features, integrating LLM APIs into production Rails applications, and using Claude Code as a core part of your daily workflow — not as an experiment. You'll work directly with US-based enterprise clients alongside Product Managers, AI Business Consultants, and Delivery Excellence Managers.

Your architecture decisions will have visible business impact.

What You'll Own

• Design, build, and maintain production-grade Ruby on Rails applications for US enterprise clients — from architecture to deployment
• Integrate LLM APIs (Claude, GPT-4, Gemini) into the Rails stack, building AI-powered features that drive real business outcomes
• Use Claude Code daily as your AI development partner — for generation, debugging, documentation, and velocity
• Build responsive, performant React front-ends from wireframes and design specs
• Own RESTful and GraphQL API design for client applications and third-party integrations
• Drive database design and optimisation — schema, queries, indexing, and migrations on PostgreSQL/MySQL
• Lead code reviews and raise the technical bar through constructive feedback
• Document architecture decisions, API contracts, and implementation patterns

Must-Haves

• 6+ years of deep, production-grade Ruby on Rails experience — advanced framework patterns, background jobs (Sidekiq/Redis), design patterns, best practices
• Hands-on experience with Claude Code (Anthropic) for AI-assisted development — this is central to how we build
• Strong React skills — hooks, component architecture, state management, wireframe to production
• Expert-level PostgreSQL/MySQL — schema design, query optimisation, indexing, performance tuning
• Proven experience designing RESTful and GraphQL APIs at scale
• Experience integrating third-party LLM APIs (OpenAI, Anthropic, Google Gemini) into production Rails apps
• Strong software architecture fundamentals — MVC, service objects, design patterns, testability
• Deep comfort with Git, Gitflow, and PR-based collaboration workflows

Good to Have

• Python for scripting, automation, or backend service integration alongside Rails
• AWS familiarity — EC2, S3, RDS, Lambda — for deployment and infrastructure
• MongoDB or NoSQL in polyglot persistence architectures
• Vector databases (Pinecone, pgvector, Weaviate) for LLM application development
• LangChain, LangGraph, or similar orchestration frameworks for AI agents
• SaaS multi-tenancy patterns and high-traffic web application experience
• Open source contributions or a strong public GitHub profile

Why Join Techjays

• Claude Code is standard practice here, not a side experiment — you'll use it every day to ship faster and smarter
• Anthropic partner access — early visibility into frontier AI tools and capabilities before the market sees them
• Greenfield only — you'll design architecture, not inherit technical debt
• Global client exposure — your engineering decisions translate directly to measurable business outcomes for US enterprise clients
• Team pedigree — you'll learn alongside engineers who've shipped at real scale at Google, Akamai, and NetApp
• AI is the product here, not a feature. You'll spend your career at the intersection of software engineering and AI systems

What We're Looking For Beyond the Resume

• Builder mindset — you think in systems, not tickets
• Ownership — you take features from idea to production
• Structured thinking in ambiguous, fast-moving environments
• Clear communicator, collaborative team player

What We Offer

• Competitive compensation
• Hybrid work — Coimbatore office or remote flexibility
• Paid holidays and flexible time off
• Medical insurance for self and family (up to ₹4 Lakhs per person)
• Opportunity to work on production-grade AI systems for global clients
• A culture built on clarity, integrity, and continuous growth

Location: Coimbatore / Chennai — Hybrid Notice Period: Immediate to 30 days preferred

Responsibilities: 

• Develop and maintain high-quality, efficient, and scalable backend applications. 
• Participate in all phases of the software development lifecycle (SDLC) 
• Write clean, well-documented, and testable code adhering to best practices. 
• Collaborate with team members to ensure the successful delivery of projects. 
• Debug and troubleshoot complex technical problems. 
• Identify and implement performance optimizations. 
• Participate in code reviews 
• Hands-on experience with Springboot, Java 8 and above. 
• 5-8 years of experience developing Java applications. 
• Knowledge about at least one messaging system like Kafka, RabbitMQ etc. 
• Required React developer requirements, qualifications & skills: 
• Proficiency in React.js and its core principles 
• Strong JavaScript, HTML5, and CSS3 skills 
• Experience with popular React.js workflows (such as Redux) 
• Strong understanding of object-oriented programming (OOP) principles. 
• Experience with design patterns and best practices for Java development. 
• Proficient in unit testing frameworks (e.g., JUnit). 
• Experience with build automation tools (e.g., Maven, Gradle). 
• Experience with version control systems (e.g., Git). 
• Experience with one of these databases – Postgres, MongoDb, Cassandra 
• Knowledge on Retail or OMS is a plus. 
• Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset 
• Ability to reverse engineer existing/legacy and document findings on confluence. 
• Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria. 
• Document APIs using Lowe’s established tooling. 

Job Overview :

We are seeking a passionate and experienced Full Stack Developer with a strong background in Java and modern front-end technologies. The ideal candidate should possess a keen analytical mindset, be comfortable working in a cross-functional, fast-paced environment, and demonstrate the ability to take ownership of technical challenges. This role involves end-to-end development, from understanding business requirements to delivering scalable, high-quality solutions, while continuously seeking improvement and innovation. 

KEY RESPONSIBILITIES 

• Analyze entity relationships to design and implement efficient, scalable code solutions.
• Develop reports and conduct thorough analysis to identify defects and recommend enhancements. 
• Perform root cause analysis to resolve issues effectively and prevent recurrence. 
• Offer technical recommendations and develop improvement plans based on data-driven insights. 
• Apply a curious, problem-solving mindset to tackle complex business challenges and propose innovative solutions.   

 REQUIRED QUALIFICATIONS: 

• 5+ years of hands-on experience with Java, HTML5, Angular, TypeScript, JavaScript, and React. 
• Demonstrated knowledge or strong interest in full stack development. 
• Solid experience working with RESTful services, independent of platform.
• Proficiency in Oracle or SQL Server, with the ability to define data flow, high-level data design, and relationships.
• Exposure to AWS Cloud technologies and cloud-based development. 
• Working knowledge of version control tools such as Git or SVN.
• Experience implementing automated testing platforms and writing unit tests. 
• Proven ability to collaborate with cross-functional teams including Technical Leads, Product Managers, and Designers. 
• Strong communication skills with a flexible, team-oriented approach. 
• Prior experience working with US-based clients and adaptability to shifting priorities. 
• Self-driven and accountable, with a strong sense of ownership and responsibility.

🚀 We’re Hiring: Senior Full Stack Developer (Python FastAPI & React.js)

📍 Location: Chennai, Tamil Nadu (On-site)

🧠 Experience: 5+ Years

🕒 Employment Type: Full-time

About Lumera Software Solutions

Lumera Software Solutions is a product development–focused organization building technology solutions for world-class supply chain leaders. Our products help global enterprises optimize, automate, and gain real-time visibility across complex supply chain operations.

We design and build scalable, high-performance software used by industry-leading supply chain organizations worldwide, collaborating closely with global stakeholders to solve real, high-impact problems.

Our teams work closely across engineering, design, and product to deliver reliable, well-architected solutions, while collaborating with a globally distributed team across regions and time zones.

🔥 Why This Role Is Different

This role is designed for senior engineers and architect-leaning developers who want to take technical ownership and influence how complex, enterprise-grade systems are built.

You will be building mission-critical product features used by world-class supply chain leaders, working on problems that demand strong system design, scalability, and long-term architectural thinking.

This is a core product development role, not a maintenance or support-driven position.

💼 What You’ll Do

• Act as a senior individual contributor, owning complex, backend-heavy features end-to-end
• Design and develop scalable, production-grade backend services and APIs using Python & FastAPI
• Build and maintain front-end components using React.js, with primary focus on backend-driven functionality
• Participate in system design, architecture reviews, and technical decision-making
• Apply AI-assisted development tools to improve development speed, testing, and code quality
• Collaborate with a globally distributed engineering and product team while working from our Chennai office
• Work closely with databases to design efficient schemas and optimize queries
• Apply strong understanding of DevOps concepts including CI/CD, containerization, deployment, monitoring, and observability
• Mentor engineers through code reviews and design discussions
• Drive improvements in performance, reliability, security, and scalability

🛠️ What We’re Looking For

• 5+ years of hands-on experience in full stack roles with a backend-heavy focus
• Strong proficiency in Python with FastAPI, including API design and performance considerations
• Solid experience building and consuming RESTful APIs at scale
• Good working experience with React.js, JavaScript (ES6+), HTML, and CSS
• Strong understanding of backend architecture, system design, and data modeling
• Good understanding of DevOps concepts such as CI/CD pipelines, Docker, cloud deployments, and monitoring
• Ability to make sound technical trade-offs with long-term maintainability in mind
• Experience mentoring developers or leading by technical example
• Comfortable working in a focused, work-from-office (WFO) product development environment
• Educational Qualification: B.E / B.Tech (Computer Science or related fields)**

➕ Nice to Have (Not Mandatory)

• Experience with cloud platforms (AWS / Azure / GCP)
• Familiarity with Docker and containerization
• Experience setting up or working with CI/CD pipelines
• Exposure to product development teams or building in-house products
• Exposure to AI/ML concepts, data pipelines, or integrating AI services into products
• Experience using AI developer tools to enhance productivity

🎯 What We Offer

• Competitive salary based on skills and impact
• High ownership and visibility of your work
• Fast learning curve with real technical challenges
• A collaborative, no-nonsense engineering culture
• Long-term growth as the company scales

✨ Lumera Software Solutions is an equal opportunity employer. We value talent, ownership, and diversity.

Principal Software Engineer

Opportunity in this role / Why should you join here?

You will enjoy working with us if you are looking to work in a stimulating, flexible, open environment. You will experience ownership and independence at the same time providing technical solutions that work.

You will be part of the madness and thrill of growing the business from scratch. You get to make decisions, fail fast and learn fast. You get to contribute, add value to the organization by thinking like an entrepreneur. You are supported by the best talent in the industry and work with creative teams. You are rewarded as you go on proving yourself.

Requirements:

• Bachelor's degree in Computer Engineering/Computer Science or related field
• At least 6+ years of experience with at least 4 years of software application design experience
• Strong analytical and problem solving skills
• A full stack generalist with experience in both front-end and back-end technologies
• Proven experience in high-level programming languages, like Java and Development of scalable Web Applications and Web Services
• Experience in JavaScript frameworks like Angular, React, NodeJS
• Passion for delivering products end-to-end, from ideation to implementation
• Proven experience building complex web applications and micro services
• Strong experience with Spring Boot stack (spring cloud, spring-data)
• Extensive experience in developing and consuming REST APIs
• Experience in PHP is a plus advantage

Responsibilities:

• Participate in design reviews and recommend improvements
• Provide technical guidance in software design and development activities
• Recommend new technologies to ensure quality and improve productivity
• Support in all phases of SDLC and ensure delivery of high-quality products
• Analyse business requirements and design/develop most effective technical solution
• Analyse and troubleshoot application issues in a timely fashion
• Work with other engineers in planning, prioritising and executing assigned tasks within deadlines

x• Work with QA team in preparing test cases and assist in automation

• Mentor other Engineers as and when required
• Assist in maintenances and upgrades of existing software applications
• Assist in risk assessment and mitigation activities.
• Assist in technical audits and make sure to implement audit recommendations.

Firmway

Our software’s are used by large corporates and their auditors for automating balance confirmation and accounts reconciliation. We are looking for a star developer who is looking challenging work, shorter deadlines, kickass mentorship, a rock-solid career growth plan.

About the Role

Firmway is looking for a candidate who is willing to with the FinTech Startup to take it to the next level. The candidate must also possess a strong knowledge of web application development using PHP programming language and MySQL Server databases.

Someone who can take ownership of the responsibility and is willing to go that extra mile. Someone who is hungry for knowledge and wants to climb up the ladder quickly. 

Key Tasks and Responsibilities

• Modifying existing code with new features available in current and future deployments.
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality.
• Understand user requirements and prepare an algorithm.
• Write clean, high quality, optimized & reusable code.
• Maintain Security of the Application.
• Identifies competitive advantages and technological trends for the benefit of a company.

Key Skills

• Must be proficient in PHP, Laravel, Mysql, AWS technology stacks.
• Must have experience in working on a framework such as Laravel, front-end development skills including Javascript & JQuery.
• Experience with REST-based API Development.
• Knowledge of Object-Oriented Programming (OOP) Concepts, MySQL, CSS3, JSON, XML & MVC.
• Knowledge of Networking and Versioning.
• Familiarity with SQL/NoSQL databases and their declarative query languages.
• Strong programming skills with an understanding of project cycles, development environments, and source control techniques.

Good to Have Skills:

• Ability to work without supervision.
• Efficiently handles tasks in a reasonable amount of time.
• Ability to communicate with clients, colleagues and management to explain complex issues clearly and concisely.
• Excellent learner.
• Multi-task and manage tasks with varying priorities.

Experience: 1 year.

Education : BE / B.Tech / M.Tech / MCA in CS/IT

Benefits

Being part of a startup that’s turning out to be a game-changer, you will be blessed with:

• Freedom to try new things.
• 2 Saturday’s off.
• Dress code – Casual.
• Take-it-when-you-need-it vacation.

Apply here - https://firmway.in/job

Dare2Compete is looking for MEAN or LAMP Stack Developers. Developer responsibilities include building our application from concept all the way to completion from the bottom up, fashioning everything from the home page to site layout and function.

Responsibilities of the Candidate:

• Write well-designed, testable, efficient code by using the best software development practices
• Integrate data from various back-end services and databases 
• Gather and refine specifications and requirements based on technical needs
• Be responsible for maintaining, expanding, and scaling our products
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities
• End-to-end management and coding of all our products and services
• To make products modular, flexible, scalable and robust

Our Tech Stack: 

• AngularJS 10
• React
• PHP Laravel
• Mongo DB
• Express.js 
• NodeJS
• MYSQL 8
• NoSQL DB
• Linux OS
• Apache
• Amazon AWS services – EC2, WAF, EBS, SNS, SES, Lambda, Fargate, etc.
• The whole ecosystem of AWS
• And many more…

Required Experience, Skills, and Qualifications:

• Must have at least 1 year of experience to a maximum of 10 years of experience in the technologies that we work with
• Proven working experience in programming – Full Stack
• Top-notch programming and analytical skills
• Must know and have experience in AngularJS 2 onwards
• A solid understanding of how web applications work including security, session management, and best development practices
• Adequate knowledge of relational database systems, Object-Oriented Programming and web application development
• Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
• B.Tech in Computer Science or a related field or equivalent

Salary: As per industry benchmarks. This won’t be a restriction for the right candidate.

Job Description

We are looking for a skilled and ambitious Full-Stack Developer (React/React-Native, PHP, and NodeJs )to join our development team. In this role, you will be responsible for developing and implementing applications using React.js, NodeJS, PHP, and its libraries such as Redux, Redux-Saga, ExpressJs, Laravel. You will also be responsible for profiling and improving performance and documenting the codebase. To ensure success as a Full Stack developer, you should have in-depth knowledge of Javascript (ES6 or above), NodeJS, PHP 7.x, MySQL and its concepts, excellent coding skills, and a good understanding of progressive web applications.

Full Stack Developer Responsibilities:

• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Understand the past code and improve when needed.
• Develop components in a scalar way so, can be used again.
• Developing and implementing front-end + back-end architecture to support user interface concepts.
• Monitoring and improving application performance.
• Documenting application changes and developing updates.

Full Stack Developer Requirements:

• In-depth knowledge of Javascript, CSS, and HTML.
• In-depth knowledge of REACT libraries like Webpack, Redux, Redux-Saga and React Router.
• In-depth knowledge of NodeJs, ExpressJs, PHP, Laravel Framework
• Experience with User interface design and development.
• Experience with browser-based debugging and performance testing software
• Excellent troubleshooting skills.
• Build high-quality user interfaces from design mockups.
• Good project management skills and communication skills
• Collaborate with Product, Design, and other developers to understand requirements.
• Write tests to ensure high-grade code.
• Adhere to code style and code quality standards.
• Provide code review feedback to teammates.
• Good understanding of AWS infrastructure.