Mern Architect

Seven Infosystem is a mobile app and web development company based in Rajkot, India, delivering solutions across platforms such as mobile and web. The company focuses on using advanced technologies to create innovative services that support and grow clients’ businesses. An expert and collaborative team works to convert client ideas into high-quality, practical products. On-time delivery and well-structured, thoughtfully designed work are core principles that guide every project.

We are looking for a skilled and responsible Full Stack Backend Developer to join our team for an ongoing product-based project. The main responsibility will be backend development using Node.js, API development, database management, and server-side logic. The candidate should also have working knowledge of React.js / Next.js for admin panel development. Knowledge of React Native will be an added advantage.

This is an onsite role based in Rajkot.

Responsibilities

• Develop, maintain, and optimize backend APIs using Node.js
• Work on existing product features and provide technical support
• Manage and improve MongoDB database structure and queries
• Integrate backend APIs with React.js / Next.js admin panel
• Coordinate with mobile app developers for API requirements
• Handle bug fixing, performance improvement, and feature updates
• Work with AWS server deployment and basic server management
• Maintain clean, secure, and scalable code
• Understand product requirements and deliver solutions on time

Required Skills & Qualifications

• 3 to 5 years of experience in backend or full-stack development
• Strong knowledge of Node.js and Express.js
• Good experience with MongoDB
• Experience in REST API development and third-party API integration
• Basic knowledge of React.js / Next.js
• Understanding of authentication, JWT, validations, and API security
• Basic knowledge of AWS server, deployment, PM2, or similar tools
• Good debugging and problem-solving skills
• Ability to understand existing code and work independently
• Good communication and team coordination skills

Preferred Skills

• Experience with React Native
• Experience with SaaS or product-based applications
• Knowledge of Git, GitHub, and deployment workflow
• Understanding of admin panel and mobile app API structure

Job Details

• Position: Full Stack Backend Developer
• Experience: 3 to 5 years
• Location: Rajkot, Gujarat
• Job Type: Full-time, Onsite
• Joining: Immediate or within 15 days preferred

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

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 looking for an experienced Java Full Stack Developer with

expertise in Angular to join our dynamic development team. The ideal candidate will

have a strong background in both front-end and back-end development, with a

focus on delivering high-quality, scalable, and maintainable software solutions. As a

Java Full Stack Developer, you will be responsible for designing, implementing, and

maintaining software applications throughout the entire development lifecycle.

Responsibilities:

1. Design, develop, and maintain scalable and responsive web applications using Java, Spring Boot, and Angular.
2. Collaborate with cross-functional teams to understand project requirements and translate them into technical specifications.
3. Implement and maintain RESTful APIs to support front-end and mobile applications.
4. Write clean, efficient, and well-documented code following best practices.
5. Work with UX/UI designers to implement visually appealing user interfaces.
6. Perform code reviews to ensure code quality and adherence to coding standards.
7. Troubleshoot, debug, and resolve software defects and issues in a timely manner.
8. Stay updated on emerging trends and technologies in Java and Angular development

Qualifications:

• Education criteria mandatory Btech/Mtech/MCA
• Proven experience as a Full Stack Developer with expertise in Java and Angular.
• Strong proficiency in Java, Spring Boot, HTML, CSS, and JavaScript.
• Experience with front-end frameworks such as Angular (Angular 6+).
• Knowledge of RESTful web services and API design.
• Familiarity with databases (e.g., MySQL, PostgreSQL, MongoDB).
• Version control systems (e.g., Git) and build tools (e.g., Maven, Gradle).
• Experience with agile development methodologies.
• Excellent problem-solving and communication skills.

Job Description:

We are looking for a talented Full Stack Developer with a strong background in Node.js, React.js, and AWS to contribute to the development and maintenance of our web applications. As a Full Stack Developer, you will work closely with cross-functional teams to design, develop, and deploy scalable and high-performance software solutions.

Responsibilities:

Collaborate with product managers and designers to translate requirements into technical specifications and deliver high-quality software solutions.

Develop and maintain web applications using Node.js and React.js frameworks.

Write clean, efficient, and well-documented code to ensure the reliability and maintainability of the software.

Implement responsive user interfaces, ensuring a seamless user experience across different devices and platforms.

Integrate third-party APIs and services to enhance application functionality.

Design and optimize databases to ensure efficient data storage and retrieval.

Deploy and manage applications on AWS cloud infrastructure, utilizing services such as EC2, S3, Lambda, and API Gateway.

Monitor and troubleshoot application performance, identify and resolve issues proactively.

Conduct code reviews to maintain code quality standards and provide constructive feedback to team members.

Stay up to date with the latest trends and best practices in web development and cloud technologies.

Requirements:

Proven experience as a Full Stack Developer, working with Node.js and React.js in a professional setting.

Strong proficiency in JavaScript and familiarity with modern front-end frameworks and libraries.

Experience with AWS services, such as EC2, S3, Lambda, API Gateway, and CloudFormation.

Knowledge of database systems, both SQL and NoSQL, and the ability to design efficient data models.

Familiarity with version control systems (e.g., Git) and agile development methodologies.

Ability to write clean, efficient, and well-documented code, following best practices and coding standards.

Strong problem-solving skills and the ability to work effectively in a fast-paced environment.

Excellent communication and collaboration skills, with the ability to work well in a team.

We are looking for Technology Lead who possesses a passion for pushing technologies to the limits and will work with our team to help build Snapwiz's next-generation platform. If you are a person who loves to face technical challenges, innovates consistently and is never satisfied with status-quo then this is the role for you.

Job Location: IBC Knowledge Park, Dairy Circle, Bannerghatta Road, Bangalore

Role:

• Design and build advanced applications from scratch keeping scalability and performance in mind

• A good handle on both client and server architecture

• Should be a quick learner and willing to go the extra mile in delivering the projects.

• Should be able to work with juniors; help and guide them as needed.

• Work on bug fixing and improving application performance.

• Comfortable in owning large scale products and continuously re-evaluating and innovating.

• A practical risk-taker, innovator and always curious.

Requirements:

• BE/B.Tech/ME/M.Tech degree in Computer Science, Engineering or a related subject

• 5 to 10 years overall experience

• Strong knowledge of Agile development (Scrum)

• Proven working experience in server-side technologies like Java, Hibernate, Spring.

• Strong knowledge of any database technology like MySql or MongoDB

• Awareness of client-side technologies like JS and JQuery.

• Knowledge of the general tech landscape, architectures, trends, and emerging technologies.