
Job Summary
We are seeking an experienced Java + Kafka Developer to design, develop, and maintain high-performance, event-driven applications. The ideal candidate will have strong backend development skills in Java and hands-on experience with Apache Kafka for building scalable, real-time data processing systems.
Key Responsibilities
- Design and develop event-driven microservices using Java and Apache Kafka
- Build and maintain Kafka producers, consumers, topics, and streams
- Implement message processing, retries, error handling, and idempotency
- Develop and integrate RESTful APIs
- Ensure high availability, scalability, and performance of Kafka-based systems
- Monitor, troubleshoot, and optimize Kafka and application performance
- Collaborate with architects, DevOps, and QA teams
- Participate in code reviews and follow best practices
- Contribute to system design and technical discussions
Required Skills
- 6+ years of experience in Java backend development
- Strong hands-on experience with Apache Kafka
- Experience with event-driven and streaming architectures
- Solid understanding of microservices architecture
- Experience with REST APIs
- Good knowledge of multithreading, concurrency, and JVM concepts
- Familiarity with SQL / NoSQL databases
- Strong problem-solving and debugging skills

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Location: Bengalore, India, Exp: 3-5 Yrs
Backend Developer (Golang) - Trading & Fintech
About Us:
Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make a mark in the trading and fintech industry. If you are looking for just another backend role, this isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits every day. If you thrive in high-stakes environments and have a deep passion for performance driven backend systems, we want you.
What we expect:
You should already be exceptional at Golang. If you need hand-holding, this isn’t the place for you.
You thrive on challenges, not on perks or financial rewards.
You measure success by your own growth, not external validation.
Taking calculated risks excites you—you’re here to build, break, and learn.
You don’t clock in for a paycheck; you clock in to outperform yourself in a high-frequency trading environment.
You understand the stakes—milliseconds can make or break trades, and precision is everything.
What you will do:
Develop and optimize high-performance backend systems in Golang for trading platforms and financial services.
Architect low-latency, high-throughput microservices that push the boundaries ofspeed and efficiency.
Build event-driven, fault-tolerant systems that can handle massive real-time data streams.
Own your work—no babysitting, no micromanagement.
Work alongside equally driven engineers who expect nothing less than brilliance.
Must have skills:
Learn faster than you ever thought possible.
Proven expertise in Golang (if you need to prove yourself, this isn’t the role for you).
Deep understanding of concurrency, memory management, and system design.
Experience with Trading, market data processing, or low-latency systems.
Strong knowledge of distributed systems, message queues (Kafka, RabbitMQ), and real-time processing.
Hands-on with Docker, Kubernetes, and CI/CD pipelines.
A portfolio of work that speaks louder than a resume.
Nice-to-Have Skills:
Past experience in fintech, trading systems, or algorithmic trading.
Contributions to open-source Golang projects.
A history of building something impactful from scratch.
Understanding of FIX protocol, WebSockets, and streaming APIs.
Why Join Us?
Work with a team that expects and delivers excellence.
A culture where risk-taking is rewarded, and complacency is not.
Limitless opportunities for growth—if you can handle the pace.
A place where learning is currency, and outperformance is the only metric that matters.
The opportunity to build systems that move markets, execute trades in microseconds, and redefine fintech. This isn’t just a job—it’s a proving ground. Ready to take the leap? Apply now.
Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency clientfacing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts
We indulge in all things that would excite you!!
- Work on large-scale, custom distributed software systems using Java, Scala,
- MongoDB, JavaScript (AngularJS, ReactJS), and the likes
- We work almost exclusively on customer site providing a mix of delivery and consulting
- services, so you'll be flexible about travel
- Employ Agile development including task estimation, test automation, deployment automation, and Continuous Integration to improve overall execution speed and product quality
- Work in a dynamic, collaborative, transparent, non-hierarchical, and ego-free culture where your talent is valued over a designation or title
- Spread the word about best practices in software development inside and outside the Equal Experts community like Expert Talks
What we look for in you?
- 6 + years of Hands-on development and delivery experience with Java, Scala, and the likes
- Passion for software engineering and craftsman-like coding prowess
- Great OO skills, including strong design patterns knowledge
- Experience working with Agile, TDD, Lean, and/or Continuous Delivery approaches and best practices, such as Extreme Programming (XP)
- Enthusiastic to work collaboratively with people and sharing your ideas to solve real business problems

At Upswing, we are a passionate and self-driven team of thinkers who aspire to build the rails to connect the legacy financial sector with financial innovators through a simple and powerful banking-as-a-service (BaaS) platform.
We’re building our platform putting the focus on pragmatism, reliability, and maintainability. We believe that keeping the engineering complexity under control is key to preserving the development productivity and long-term evolution of a platform.
To bring this vision to life, we are building the infrastructure using Microservices architecture using the latest set of technologies that are also fun to work with such as Java, Scala, Postgres, Akka, Kafka with a completely automated DevOps pipeline from the get-go using tools like Chef, Jenkins, Grafana, Graylog.
We are looking for motivated engineers who will be working in a highly creative and cutting edge technology environment to build a world-class financial services suite.
Why you should join us:
- You will redefine the financial services landscape for India in the coming years.
- Be part of a core Engineering team that will create innovative and scalable Fintech solutions.
- Work with passionate and experienced engineering, product & business workforce that believes in teamwork, and that helps fast-track your learning on solving complex technical challenges.
- We are funded by the leading fintech VC `QED Investors` and other established Founders and Executives of awesome Indian companies.
What you will do if you join us:
- Propose solutions to solve complex system architecture challenges and actively lead the end-to-end development of the system.
- Create robust, flexible, consistent, and easy-to-use APIs
- Continuously strive for performance improvements, code reusability, and readability
You should have:
- Tech or a higher degree in computer science or a related field.
- 1+ years of experience working on the back-end development for complex distributed systems who are willing to adopt any Programming language as per the requirement.
- Familiarity with any of the following – Java, C++, Scala, Kotlin, and frameworks like Spring, Play, Hibernate, Django, etc.
- Good understanding of Algorithms, Data Structure, OOP, Design patterns, Parallel programming, Multithreading concepts & Event-Driven Systems.
- Experience with Relational databases such as MySQL, PostgreSQL, Oracle, or any NoSQL database.
It’s a plus if you have:
- Familiarity with cloud platforms like AWS, Azure, or Google Cloud
- Worked on Micro-services architecture
*forward your resume to (ambikadotj@semperfidotcodotin)(dot - .)
) 2+yrs of strong experience in Java/J2EE technologies (Core Java, Spring, Springboot, Hibernate,
JPA, Microservices)
*) Experience with working on Java 8.0 and its emerging road map for 11
*) Hands on experience in Springboot and good knowledge of MySQL, MongoDB
*) Hands on experience in working with Angular 6 and above. Experience working with product
management and UI/UX designers having knowledge of advanced Javascript, JQuery
*) Working knowledge on components, modules, data/event bindings, templates, using and creating
directives, writing routes, services, forms and models
*) Solid understanding of the full frontend and backend development life cycle
*) Strong experience in Spring Framework (Spring MVC, Spring security, Spring data, OAuth)
*) Experience with Webservices (SOAP and REST) and API integration. Good knowledge of JSON and
Swagger and Postman is required
*) Experience with web application servers like Tomcat, Jetty, JBoss. Knowledge of Kafka with MQTT
would be an added advantage
*) Experience with TDD, code testability standards, JUnit
*) Experience in managing configurations and deploying and hosting applications in AWS
*) Experience with DevOps tools like Git, Maven, SourceTree, Jenkins, Docker and CICD model of
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