
- 3-8+ years of experience programming in a backend language (Java / Python), with a good understanding of troubleshooting errors.
- 5+ years of experience in Confluent Kafka / 3+ years of experience in Confluent Kafka
- Cloud Kafka, Control Central, Rest Proxy, HA Proxy, Confluent Kafka Connect, Confluent Kafka Security features

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Java Technical Lead – Job Description
We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.
A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Experience: 10+ years
Location: Bangalore
Job Description:
- Experience in Core Java, Spring Boot.
- Experience in microservices.
- Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2.
- Good knowledge of multi-threading.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills in Java.
- Strong interpersonal, communication and analytical skills.
- Should be able to express their design ideas and thoughts.
About Wissen Technology:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups.
Wissen Technology is a part of Wissen Group and was established in the year 2015.
Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities.
Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies.
The Wissen Group overall includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always "first time right".
Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
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
Job Description – Backend Python Developer(Mid-Level)
📍 Location: Mumbai/Gurgaon | Full-time
Backend Python Developer
Role Overview
We are seeking a skilled Backend Python Developer to design, develop, and maintain backend services, APIs, and integrations that power our AI-driven automation solutions.
You will collaborate closely with senior engineers, AI/ML teams, and frontend developers to build scalable, high-performance systems. This role is ideal for professionals with solid backend experience who are eager to deepen their expertise in Python, cloud technologies, and AI-based applications.
Key Responsibilities
- Develop and maintain backend APIs, services, and system integrations using Python
- Collaborate on system design and architecture discussions with senior engineers
- Write clean, scalable, and well-documented code following best practices
- Ensure performance, scalability, and reliability in cloud environments
- Design and manage SQL/NoSQL databases for structured and unstructured data
- Support integration of AI/ML models into production workflows
- Participate in code reviews, unit testing, and debugging
- Contribute to CI/CD pipelines, containerization, and DevOps processes
Required Skills & Qualifications
- 3–5 years of experience in backend development
- Strong proficiency in Python
- Hands-on experience with frameworks such as FastAPI, Flask, or Django
- Experience building and consuming REST APIs (GraphQL is a plus)
- Strong database knowledge: PostgreSQL, MySQL, MongoDB, or Redis
- Familiarity with cloud platforms (AWS, GCP, or Azure)
- Hands-on experience with Docker and Kubernetes
- Strong understanding of OOP, data structures, algorithms, and design patterns
Preferred Skills
- Exposure to AI/ML workflows or a strong interest in learning
- Experience with message brokers such as Kafka, RabbitMQ, or Celery
- Knowledge of asynchronous programming (asyncio, Celery, etc.)
- Experience with unit testing frameworks (PyTest, unittest)
- Understanding of API security and authentication (OAuth2, JWT)
What We Offer
- Competitive compensation with growth opportunities
- Opportunity to work on AI-first automation products used globally
- Mentorship from experienced senior engineers
- Flexible work environment
- Continuous learning support in Python, Cloud, and AI/Automation technologies
Responsibilities:
● Design, develop, and maintain scalable backend services and APIs using Java and Spring
Boot.
● Create and optimize SQL database schemas and queries in PostgreSQL to ensure efficient
data storage and retrieval.
● Implement RESTful APIs to facilitate seamless communication between frontend and backend
components.
● Configure and manage Nginx web servers to efficiently handle incoming requests and improve
application performance.
● Deploy and manage applications on AWS or GCP, ensuring scalability, reliability, and
security.
● Configure and optimize message broker systems using Kafka for real-time data processing
and communication.
● Containerize applications using Docker for easy deployment, scaling, and management.
● Create detailed Low-Level Designs (LLDs) and High-Level Designs (HLDs) to guide the
development and architecture of backend systems.
● Automating CI/CD pipelines and streamlining the software development lifecycle.
● Integrate AI/ML models into backend workflows using Python, PyTorch/TensorFlow, or
third-party AI APIs.
● Leverage AI tools (e.g., OpenAI APIs, Hugging Face, AWS AI services) to build intelligent
features.
● Collaborate closely with frontend developers, product managers, data scientists, and other
stakeholders to deliver high-quality AI-powered solutions.
● Monitor and troubleshoot production systems to ensure optimal performance, reliability, and
uptime.
What We’re Looking For:
● Bachelor’s degree in Computer Science, Engineering, or related field.
● 3-5 years of experience in backend development.
● Proficiency in Java, Spring Boot, PostgreSQL, SQL, and GitActions.
● Strong understanding of RESTful API design principles and best practices.
● Experience with configuring and optimizing Nginx web servers.
● Experience with configuring and optimizing Kafka service.
● Hands-on experience with AWS or GCP.
● Familiarity with Docker containers and container orchestration.
● Ability to create comprehensive Low-Level Designs (LLDs) and High-Level Designs (HLDs)
for backend systems.
● Experience with Python for AI/ML model integration in backend services.
● Familiarity with AI platforms and APIs such as OpenAI, Hugging Face, AWS AI/ML, or GCP
Vertex AI.
● Excellent problem-solving skills and attention to detail.
● Strong communication and collaboration skills, with the ability to work effectively in a team
environment.
Preferred Qualifications:
● Knowledge of microservices architecture and related technologies.
● Experience with cloud-native development and serverless computing.
● Understanding of software development best practices, including Agile methodologies
What You'll Do :
You will be a part of our backend team working on keeping our REST API and GraphQL API up and running and making sure that our users get the right data at the right time.
You will have ownership of developing and maintaining our backend services including users, courses, and operations tools that manage our product and logistics.
You will work on architecting and scaling highly-available RESTful services and back-end systems from scratch.
This is a position for an experienced Node programmer with at least 2 years under the belt, but you don't have to be a rock star, a ninja, or a superhero to apply.
What You'll Need :
You will fit well in the backend team if you are passionate about technology and have experience programming in Node. Knowledge of technologies like Cassandra, Elasticsearch, PostgreSQL, REST and JSON will help you get going from day one.
As an experienced Node developer, you should be intimately familiar with the platform, with
JavaScript, and with the stables of full-stack web development : HTTP, JavaScript, CSS, HTML, SQL.
It's a bonus if you're broadly familiar with other languages as well- we write some services in Go and have data pipelines written in Python- but your main work will be JavaScript through and through.
You will be a perfect match with our team if you love collaborating with people from all disciplines to solve complex problems, always want to learn new skills and take ownership of your work.
● Follow due SDLC process for different phases of
development like design, development, unit testing,
maintenance
● Understand the requirements clearly from Functional
specs and future roadmap
● Write and update software design specs for the
solution
● Participate and invite peer review for design and
coding
● Support the automation requirements of continuous
integration and continuous deployments
● Handle customer escalations and special requests in a
timely manner
● Work with the rest of the team in a professional manner
and show ownership and commitment.
Qualifications and Required Skills:
● 2+ years experience in Software development
● In-depth knowledge of database technologies (SQL and
NoSQL)
● Proficiency in Python/Django framework
● Experience building RESTful APIs and knowledge of
RESTful design patterns
● Well versed with the complete Software Engineering Lifecycle.
● Strong Software development fundamentals including OOPS,
MVC, General Algorithms, Design Patterns etc.
● Good debugging and problem solving skills
● Analytical skills.
● Algorithmic and structured thinking.
● Works effectively within a collaborative team environment
● Good communication skills and positive attitude
Other Benefits:
● Insurance - Medical Insurance Coverage of 3,00,000 for
individual, spouse and kids. *Option of including parents and
higher coverage amount of 5,00,000
● Professional Development - Reimbursement towards relevant
courses that can help you grow your career and build your
knowledge level.
● Food - Lunch, Tea and Snacks. All you can eat!
● Work Culture- Flexible Result Oriented Work Environment
● Dress - We aren’t buttoned down. Wear anything you’re
comfortable in.Wear any comfortable dress you like to the office
– and be as comfortable at work
● Foosball - Whether you want to pick up the game or master
your skills, you’ll find plenty of people to play with
● TGIF - We’ll find something to do at the end of each week. Work
hard, party harder!
skills required:JAVA,SPRINGBOOT,MICROSERVICES,SPRING,HIBERNATE
- Work with stakeholders and fellow developers.
- Design and implement Python code using the Django framework.
- Identify and fix bottlenecks that may arise from inefficient code.
- Identify and fix software bugs.
- Create a wide variety of unit tests to verify the functionality of software.
- Manage the security of the platform.
- Write detailed documentation around the code.
- Knowledge of front end languages.
| • 3+ years development and delivery experience with Java, Springboot, Micriservices, JPA and from reputable institutes • Solid experience with application frameworks such as Springboot and strong familiarty with micro services architecture and design patterns • Familiarity with databases like MySQL, MongoDB, Redis etc • Hands-on experience in analysis, design, coding, and implementation of complex, custom-built applications • Exposure to CI/CD using Gitlab, Jenkins preferred • Familiarity with Docker, Kubernetes, EFK Stack is preferred • Broad knowledge of web standards relating to APIs (OAuth, SSL etc.) • Exposure to product development is preferred • Understand Architecture Requirements and ensure effective design, development and maintenance of multiple micro services in Java Springboot deployed in cloud within containers consuming data present in relational as well as NoSQL databases. o The microservices shall expose APIs which allow ease of integration with variety of client apps o Microservices should handle a scale of thousands of requests per second • Develop communication patterns between microservices which are efficient, lightweight and secured using Kafka • Debugging issues on a live setup • Lead a small team of engineers • Create test cases and technical documentation • Maintain a high level of code quality and consistency by adhering to and enhancing the coding standards, design methodology and programming practices |
Required Skills
- As a Senior Core Java Developer, you will have a range of responsibilities from shaping and implementing strategic products to ensuring that company stays on the leading edge of technology
- You will have generic capabilities across application development stack and strong technical expertise in one / two application layers
- Excellent working knowledge of the following technologies:
- Implementation exp (hands-on) on Server Side Java technologies (Core Java, Multithreading, Concurrent API’s, Executor services, collections, concurrent packages, DS/Algo, design patters/principles, basic data case, Junit/agile)
- Design Patterns
- SQL and Relational Databases such as DB2
- Hands-on experience on Spring and Hibernate









