Web Application Developer

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

JD-

Job Title: Full Stack Developer (ASP.NET & MySQL)

Experience Required: 3 to 5 Years

Location: Kalina, Mumbai (Onsite)

Employment Type: Full-Time

About the Role:

We are looking for a skilled and proactive Full Stack Developer with 3 to 5 years of hands-on experience in ASP.NET and MySQL to join our dynamic team in Kalina, Mumbai. This is a fully onsite role, ideal for professionals who enjoy working in a collaborative office environment and are passionate about building scalable web applications.

Key Responsibilities:

• Design, develop, test, and maintain web applications using ASP.NET (MVC/Web API).
• Write clean, scalable, and efficient code for both front-end and back-end development.
• Develop and manage MySQL databases, including design, optimization, and complex queries.
• Collaborate with UI/UX designers, front-end developers, and other stakeholders to deliver seamless user experiences.

Required Skills & Qualifications:

• 3 to 5 years of experience in full stack development.
• Strong proficiency in ASP.NET (MVC, Web API) and C#.
• Solid experience with MySQL database design, queries, and optimization.
• Good understanding of front-end technologies such as HTML, CSS, JavaScript, and jQuery.
• Familiarity with version control tools like Git.

Good to Have (Preferred):

• Experience with front-end frameworks (e.g., Angular, React).
• Knowledge of RESTful API development and integration.
• Understanding of Agile methodologies.

Location & Work Mode:

• Location: Kalina, Mumbai
• Work Mode: Onsite (Work from Office)

Roles and Responsibilities :

Responsibilities

- To analysis business requirements, prepare design and implementation recommendations and estimate development effort

- Collaborate with cross-functional teams to define, design, and ship new features

- Lead or participate in design reviews, code reviews and architecture evolution discussions

- Unit-test code for robustness, including edge cases, usability, and general reliability

- Work on bug fixing and improving application performance

- Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Required Skills

- Experienced with front-end programming language with React JS.

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

- Thorough understanding of React.js and its core principles.

- Experience with popular React.JS workflows (such as Flux or Redux)

-Experience on .Net Core

-Experience in database MS SQL

Experience : 4 Years and above Designation : .Net Developer Location: Navi Mumbai Skills required • Comprehensive understanding of the .NET Framework. • Understanding of Object-Oriented Development • Knowledge in Angular JS will be an added advantage • Good Concept in Jquery, oops • Comprehensive understanding of developing scalable applications with NET 3.5/4.0 Framework, including Visual Studio 2010/2008, C#, ASP.NET, WCF Web Services, and Entity Framework. • Understand UML notations (class diagrams, sequence diagrams, entity relationship diagrams, activity diagrams, etc.) • Experience in building multi-tier, transactional web applications with n-tier architectures (UI, Business Logic Layer, Data Access Layer) along with some experience with service-oriented architectures (SOA). • Experience in design and optimize LinqToEntity / LinqToObejct / LinqToXML / SQL queries. • Experience of Unit test tools like (N-Unit/Ms Unit) for code quality metrics. • An understanding of Design Patterns (GOF) concepts is preferred. • Working knowledge of Enterprise Architect and TFS is highly desirable. • Understanding of Agile/Iterative development methodologies is highly desirable. • Experience with Test-Driven Development is highly desirable. Eligibility Criteria: • Should be a Graduate • Should Have Good Knowledge and Experience of MVC, C#, LinQ, Jquery, oops , Entity Framework, Angular, Javascript.

Responsibilities and Duties

• Should have good knowledge and experience 2+ years of experience in core Php, Opencart, Magento, Wp, Shopify Etc
• Produce detailed specifications
• Maintain and optimization and functional code
• Contribute to all phases of the development lifecycle
• Develop and deploy new features to facilitate related procedures and tools.
• Focus on Unit Testing and ensure the test-driven process

Qualifications and Skills

• Proven software development experience in PHP, Web services, WSDL, XML, and SOAP
• Familiarity with the Model-View-Controller (MVC) architectural pattern, and previous experience developing web applications using this pattern or on existing MVC frameworks
• Good knowledge of relational databases, experience interacting with MySQL database systems through an abstraction layer, in addition to the ability to write raw SQL queries.
• Front-end development experience with strong Javascript skills (including frameworks/libraries such as jQuery, AJAX, JSON) as well as familiarity with accepted CSS and HTML design standards.
• Experience in common third-party APIs i.e. (Google, Facebook, eBay, etc) will be an added advantage.
• Passion for best design and coding practices and a desire to develop new bold ideas.