Full Stack Developer - Ruby On Rails

About Techjays

At Techjays, we build production-grade AI platforms for global clients. We operate at the intersection of backend engineering, distributed systems, and applied AI — delivering secure, scalable, and enterprise-ready intelligent systems. Our team has built and scaled products at Google, Akamai, NetApp, ADP, Cognizant, and Capgemini.

About the Role

This is not a feature-delivery role. We are looking for an AI Lead who can architect, own, and scale intelligent backend systems end-to-end. You will drive both technical direction and execution — working across LLM integrations, RAG pipelines, agentic AI workflows, and cloud-native backend systems for global clients.

What You'll Do

• Architect and scale backend systems powering AI-driven applications
• Design and implement RAG pipelines, AI agents, and LLM integrations
• Own systems end-to-end — from architecture to deployment and scaling
• Integrate and optimize LLMs (Claude, GPT, Gemini) for real-world production use cases
• Build high-performance distributed systems with observability and cost efficiency
• Lead backend and AI initiatives with strong technical ownership
• Mentor engineers and raise the technical bar across teams
• Collaborate with product and AI teams to deliver AI-native solutions

What We're Looking For

• 6–10 years of strong backend engineering experience
• Hands-on expertise in Python (FastAPI / Django / Flask)
• Deep understanding of Generative AI and LLM-based systems
• Strong experience with RAG pipelines and Vector Databases (Pinecone, FAISS, ChromaDB, Weaviate)
• Solid knowledge of Agentic AI — building autonomous agents and multi-agent workflows
• Proficiency in AWS or GCP in production environments
• Experience with distributed systems, microservices, and system design
• Strong grasp of Data Structures, Algorithms, and Design Patterns
• Familiarity with WebSockets, Git, Linux/Unix, and CI/CD

Nice to Have

• Experience with Anthropic Claude API and Claude Code
• Familiarity with real-time data systems or streaming (Kafka, etc.)
• MLOps and AI system lifecycle experience
• Optimizing AI systems for latency, cost, and scalability

Who You Are

• You think in systems, not just features
• You take full ownership of what you build
• You are comfortable navigating fast-moving, ambiguous environments
• You stay updated with the latest in Generative AI and backend technologies
• Strong communicator who can collaborate across teams and global clients

What We Offer

• Competitive compensation (Best in Industry)
• Work on production-grade AI systems used by global clients
• Exposure to cutting-edge AI tools and frameworks
• A culture that values clarity, integrity, and continuous growth

Experience: -

* Minimum 2 year of coding experience in ReactJS (TypeScript), HTML, CSS-Pre-processors, or CSS-in-JS in creating Enterprise Applications with high performance for Responsive Web Applications.

* Minimum 2 year of coding experience in NodeJS, JavaScript & TypeScript and NoSQL Databases.

* Developing and implementing highly responsive user interface components using React concepts. (self-contained, reusable, and testable modules and components)

* Architecting and automating the build process for production, using task runners or scripts

* Knowledge of Data Structures for TypeScript.

* Monitoring and improving front-end performance.

* Banking or Retail domains knowledge is good to have.

* Hands on experience in performance tuning, debugging, monitoring.

Technical Skills: -

* Excellent knowledge developing scalable and highly available Restful APIs using NodeJS technologies

* Well versed with CI/CD principles, and actively involved in solving, troubleshooting issues in distributed services ecosystem

* Understanding of containerization, experienced in Dockers, Kubernetes.

* Exposed to API gateway integrations like 3Scale.

* Understanding of Single-Sign-on or token-based authentication (Rest, JWT, OAuth)

* Possess expert knowledge of task/message queues include but not limited to: AWS, Microsoft Azure, Pushpin and Kafka.

* Practical experience with GraphQL is good to have.

* Writing tested, idiomatic, and documented JavaScript, HTML and CSS

* Experiencing in Developing responsive web-based UI

* Have experience on Styled Components, Tailwind CSS, Material UI and other CSS-in-JS techniques

* Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system

* Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed

* Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

* Documenting the code inline using JSDoc or other conventions

* Thorough understanding of React.js and its core principles

* Familiarity with modern front-end build pipelines and tools

* Experience with popular React.js workflows (such as Flux or Redux or ContextAPI or Data Structures)

* A knack for benchmarking and optimization

* Proficient with the latest versions of ECMAScript (JavaScript or TypeScript)

* Knowledge of React and common tools used in the wider React ecosystem, such as npm, yarn etc

* Familiarity with common programming tools such as RESTful APIs, TypeScript, version control software, and remote deployment tools, CI/CD tools

* An understanding of common programming paradigms and fundamental React principles, such as React components, hooks, and the React lifecycle

* Unit testing using Jest, Enzyme, Jasmine or equivalent framework

* Understanding of linter libraries (TSLINT, Prettier etc)

Functional Skills: -

* Experience in following best Coding, Security, Unit testing and Documentation standards and practices

* Experience in Agile methodology.

* Ensure quality of technical and application architecture and design of systems across the organization.

* Effectively research and benchmark technology against other best in class technologies.

Soft Skills: -

* Able to influence multiple teams on technical considerations, increasing their productivity and effectiveness, by sharing deep knowledge and experience.

* Self-motivator and self-starter, Ability to own and drive things without supervision and works collaboratively with the teams across the organization.

* Have excellent soft skills and interpersonal skills to interact and present the ideas to Senior and Executive management.

Requirements:

• Hands-on working knowledge and experience is required in:
• Extensive experience working on C#, . net and. net core frameworks
• Extensive experience working on React, Javascript and Typescript
• Relational Databases (SQL Server, Oracle, PostgreSQL, etc. )
• NoSQL Databases (Mongo, Cloud Spanner, etc. )
• Agile Methodologies (Scrum, TDD, BDD, etc. )
• Experience working with distributed teams across regions and time zones
• Strong organisational skills
• Display detailed, critical, quality-oriented, skeptical thinking about the product
• Experience with several of the following tools/technologies is desirable: GIT, Jira, Jenkins, SharePoint, Visual Studio Code.
• Microservices Architecture, Domain Driver Design, Test Driven Development is a bonus
• Design Patterns and implementing the Design Patterns
• Development of Complex Application and System Architectures
• Data Structures and Algorithms using Typescript, C# and. NET
• Experience working in Google Cloud will be a big bonus as all our systems are in the Cloud 7
• Knowledge of REST and gRPC API's is a bonus
• Knowledge of the following technologies is a plus:
• Continuous Integration and Continuous Delivery Tools like GitHub, Git, etc.
• Containerisation Technologies (Docker)

As a Junior Full Stack Developer, you will have the opportunity to work with a dynamic team and contribute to the development of our cutting-edge products. This is an excellent opportunity for motivated individual to enhance their skills and gain valuable experience in Java and React.js development.

Responsibilities:

1. Full Stack Development: Collaborate with senior developers and project teams to design, develop, and maintain web applications using Java and React.js.

2. Front-End Development: Implement user interfaces and create interactive web pages using HTML, CSS, and JavaScript frameworks like React.js.

3. Back-End Development: Design and develop server-side logic using Java, including building RESTful APIs, integrating with databases, and implementing business logic.

4. Database Management: Work with databases (e.g., MySQL, PostgreSQL) to design schemas, write queries, and optimize database performance.

5. Bug Fixing and Troubleshooting: Identify and resolve technical issues and bugs, ensuring the stability and functionality of the web applications.

6. Code Reviews: Participate in code reviews to maintain code quality, identify potential improvements, and ensure adherence to best practices and coding standards.

7. Learning and Growth: Stay updated with the latest industry trends, tools, and technologies, and continuously enhance your skills as a Full Stack Developer.

Qualifications:

1. Education: Bachelor's degree in Computer Science, Software Engineering, or a related field. Relevant work experience and projects will be considered.

2. Programming Skills:

● Strong knowledge of Java programming language and its core concepts.

● Familiarity with front-end development using React.js or similar JavaScript frameworks.

● Experience with HTML, CSS, and JavaScript.

3. Database Knowledge: Understanding of database concepts and experience working with SQL databases.

4. Web Technologies: Understanding of web development principles, RESTful APIs, and HTTP protocols.

5. Problem-Solving: Strong problem-solving skills and the ability to analyze and debug issues effectively.

6. Team Player: Demonstrated ability to work collaboratively in a team environment, share ideas, and contribute to the overall success of the project.

7. Self-Motivated: Proactive and eager to learn new technologies and tools independently.

8. Communication: Effective verbal and written communication skills to collaborate with team members and stakeholders.

9. Attention to Detail: Meticulous attention to detail and the ability to write clean, efficient, and maintainable code.

10. Enthusiasm: Passion for software development and a drive to build high-quality applications.

Develop and maintain application documentation and coding standards that are clear, accurate and detailed. Troubleshoot .NET issues and provide debugging support as needed. Maintain communication with key players on development process and communicate complex technical information to non-technical audiences. Provide mentorship and support to other employees

·       Hands on Experience on HTML, jQuery, JavaScript, MongoDB, NoSQL, Azure/Google Cloud Components

·       HTML: Elements and attributes, HTML Structures

·       jQuery: Functions and events, class based, ID based and attributes-based events, effects, JSON serialization and deserialization, JSON data preparation, AJAX Calls, async functions‍

·       JavaScript: For Loops, Filters, JSON Data Mapping

·       Expert on C# (.Net Core & Asp.NET MVC) and MongoDB

Role & Responsibilities

• Design and develop complex, scalable web applications using Django and Python.
• Collaborate closely with the product and design teams to define feature specifications.
• Contribute to all phases of the development lifecycle - requirements analysis, development, testing, and production release.
• Proactively identify bottlenecks in the system and work to mitigate them.
• Ensure the best possible performance, quality, and responsiveness of applications.
• Interface with clients to understand their business, goals, and visions for products.
• Assist in the preparation and execution of technical meetings with clients.
• Provide technical support to clients, help them understand our services, and resolve their issues timely.

Preferred Candidate Profile

• 3+ years of experience in Django and Python development.
• Strong understanding of the Django framework and Python language.
• Good understanding of front-end technologies (HTML, CSS, JavaScript, AJAX).
• Familiarity with RESTful APIs and Django Rest Framework.
• Experience in working with relational databases (PostgreSQL, MySQL).
• Excellent debugging and optimization skills.
• Good understanding of software design patterns and principles.
• Must be fluent in English, with excellent written and verbal communication skills.
• Comfortable with working in a client-facing role and able to handle communications effectively.
• Ability to work independently in a remote setup, manage tasks and time effectively.
• Bachelor's degree in Computer Science, or a related field.

Perks and Benefits 

• Salary: ₹ 7,00,000 per annum.
• Work-from-home opportunity, offering a flexible work schedule.
• Regular virtual team bonding activities.
• Continuous learning opportunities with access to online courses.
• Performance-based bonus structure.
• Opportunities for growth and career advancement in a fast-growing company.
• A team that values and prioritizes work-life balance.

If you meet the qualifications above and are interested in pursuing this role, we would love to hear from you. Apply now and join our dynamic team!

 Responsibilities: 

• Participate in the entire application lifecycle, focusing on coding and debugging 
• Ability to design and document the product features, codes. 
• Self-driven and ability to take up ownership of things 
• Write clean code to develop functional applications, automation scripts, test cases 
• Troubleshoot and debug applications 
• Collaborate with developers, cross-functional teams to identify issue, new features and come up with solutions 
• Gather and address technical and design requirements 
• Provide training and support to internal teams 
• Build reusable code and libraries for future use 
• Ability to sync with other developers, designers to identify issues, new features and improvements 

Tech9 India is looking for Software Developers to join our team.  We have mid level to principal roles available.  Depending on the role, the position requires the use of Front and back End Technologies. This is a great opportunity to work with a company that has a primary focus of making our customers happy by delivering value, without all the burdensome policies and rules that have become typical for outsourced software development companies.

If you are looking for a change this is what we can promise you:

• You will have challenging problems to solve
• You will have flexibility and autonomy to solve problems and deliver solutions
• We will provide a highly collaborative environment with skilled and super friendly teammates
• We will fully support you in developing software the right way
• We won't burden you with useless policies and procedures
• We will provide you the tools you need to do your job right

If this sounds attractive please apply! We'd love to talk to you!

Responsibilities:
 

• Work with cross-functional teams, using agile practices, write, debug and deliver code
• Produce solid, thoroughly tested features

           ​​​​​​​Requirements:

• 3+ years of experience in Javascript engineering, frameworks, unit testing frameworks 
• At least 3 years of experience developing in Node, React, and nice  to have experience on Go Language
• Strong verbal and written communication skills
• Experience working with product managers and scrum teams to effectively translate business requirements into workflows  
• Demonstrated ability to remove problems and overcome roadblocks
• Cloud platform experience 

        Good to have for Mid/Sr. and must have for Principal role 

• Hands-on experience with APIs, microservices
• Experience with CI/CD systems such as Jenkins
• Experience with JSON and developing REST Services
• Expert experience leveraging container based technologies
• Multiple years of experience delivery solutions through an Agile delivery methodology
• Experience with bash shell scripts, LINUX utilities & UNIX Commands
• Ability to understand complex systems and solve challenging analytical problems
• Ability to leverage multiple tools and programming languages to analyze and manipulate data sets from disparate data sources
• Strong collaboration and communication skills within and across teams
• Strong problem solving skills and critical thinking ability