Web 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

Role Overview:

We are seeking a motivated .NET Developer with around 2 years of experience to join our backend development team. The ideal candidate should have hands-on experience in C#, ASP.NET Core, and SQL, with a strong understanding of object-oriented programming and API development. You will work closely with product, DevOps, and QA teams to build and enhance backend systems

supporting our trading and fintech platforms.

Key Responsibilities:

• Develop, maintain, and enhance backend applications using .NET Core / ASP.NET MVC.

• Design and implement RESTful APIs for integration with frontend and third-party systems.

• Write clean, scalable, and efficient code following best practices.

• Work with SQL databases (preferably MS SQL Server) to design schemas, write queries, and optimize performance.

• Collaborate with product managers and frontend teams to translate requirements into technical solutions.

• Participate in code reviews, debugging, and troubleshooting production issues.

• Contribute to improving application performance, scalability, and security.

Required Skills & Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or related field.

• 2 years of experience in .NET development.

• Strong proficiency in C# and ASP.NET Core / ASP.NET MVC.

• Experience with Web APIs and RESTful architecture.

• Good knowledge of Entity Framework / LINQ.

• Hands-on experience with MS SQL Server or other relational databases.

• Understanding of OOP principles, design patterns, and software architecture concepts.

• Familiarity with Git or other version control systems.

• Basic understanding of HTML, CSS, and JavaScript (for integration purposes).

Nice-to-Have Skills:

• Exposure to Microservices architecture.

• Familiarity with Message Queues (Kafka, RabbitMQ).

• Knowledge of CI/CD tools and DevOps practices.

• Experience with cloud environments (AWS / Azure).

• Understanding of financial or trading systems is a plus.

Job Title: .NET Developer with Cloud Migration Experience

Job Description:

We are seeking a skilled .NET Developer with experience in C#, MVC, and ASP.NET to join our team. The ideal candidate will also have hands-on experience with cloud migration projects, particularly in migrating on-premise applications to cloud platforms such as Azure or AWS.

Responsibilities:

• Develop, test, and maintain .NET applications using C#, MVC, and ASP.NET
• Collaborate with cross-functional teams to define, design, and ship new features
• Participate in code reviews and ensure coding best practices are followed
• Work closely with the infrastructure team to migrate on-premise applications to the cloud
• Troubleshoot and debug issues that arise during migration and post-migration phases
• Stay updated with the latest trends and technologies in .NET development and cloud computing

Requirements:

• Bachelor's degree in Computer Science or related field
• X+ years of experience in .NET development using C#, MVC, and ASP.NET
• Hands-on experience with cloud migration projects, preferably with Azure or AWS
• Strong understanding of cloud computing concepts and principles
• Experience with database technologies such as SQL Server
• Excellent problem-solving and communication skills

Preferred Qualifications:

• Microsoft Azure or AWS certification
• Experience with other cloud platforms such as Google Cloud Platform (GCP)
• Familiarity with DevOps practices and tools

• 2+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

Role: Java developer
Experience: 4+ years

Job description

○ Working experience on JAVA,Spring Boot. (on building web services?)

○ NOSQL DynamoDB knowledge is plus

○ Working experience in building micro services and distributed systems

○ Working experience on using messaging queues RabbitMQ/Kafka is plus

Position : Database Programmer:

Job Description / Required Skills

• Strong experience in Database design for complex web and mobile application, including writing complex store procedures, function, triggers and ad-hoc queries.
• Hands-on development experience with T-SQL.
• Strong experience on Database designing, normalization, optimization and performance tuning.
• Experience in advanced SQL programming, problem-solving and analytical skills.
• Experience in security, troubleshooting and optimizing the performance of databases and stored procedures.
• Experience in Refactoring/troubleshooting existing databases as needed.
• Deep understanding of referential integrity and indexing.
• Assisting with production database issues and helping to troubleshoot and isolate the root cause of issues and provide issue resolution by interacting with Developers.
• Ability to estimate development tasks accurately and meet agreed upon deadlines.
• Understanding of code promotion, version control and QA procedures.
• Good Communication skills.

Technical Skills:

• MySql, MS-SQL, SQL Server Management Studio and SQL Server Profiler.
• PostgreSQL
• DCL, DDL, DML Scripts.
• T-SQL, SSRS and SSIS
• OS Environments: Windows XP/Windows 7, Windows Server 2003/2008

Experience         :               3 to 4 years

Qualification       :               B. Tech/BE/MCA/MSC Computers

Location               :               Mumbai

Role Description:

As a Lead Backend Engineer , you will be responsible for designing and deploying scalable, highly available, and fault-tolerant systems for Radiusagent. Experience as a Tech Lead, managing tasks with back-end engineers while coding themselves will be a bonus point for the ideal candidate.

Responsibilities will include-

• You will contribute to all aspects of an agile software development lifecycle including design, architecture, development, documentation, testing, and operations.
• You will build cutting-edge scalable systems by writing simple and efficient code.
• You will push your design and architecture limits for new product development.
• You will ensure compliance with the build/release and configuration management process.

Skills needed:

• be able to design and build modules from ground up
• proficient in any one programming language out of php/golang/node/python/javascript/java/ruby and ability to pick up others
• experience with mysql/postgres/mongodb/couchdb
• experience  with redis/memcached
• experience with rabbitmq / kafka
• experience in having written cron jobs, troubleshooting downtime
• ability to work with ambiguous requirements
• good understanding of OS concepts

Nice to haves:

• experience with managing VMs' on aws/gcp/digitalocean 
• experience with docker/kubernetes
• experience elasticsearch or lucene