
Collaborate with clients and internal teams to develop appropriate solutions
• Brainstorm with team members and prove the ability to think on the fly.
Requirements
• Core Java
• Spring Boot, Spring Rest, Spring Data
• Testing framework - Junit, Mockito
• Experience in deploying applications on one of public cloud preferably Microsoft Azure. (Other
- AWS or Google Cloud)
• Experience in one of messaging platform preferably Kafka (Other - Rabbitmq or Active MQ)
• Docker
• Kubernetes
• Others – Linux, Git, Maven, CI/CD pipeline
• Experience in working with Agile teams
Good To Have
• Git (6+ years of experience)
• Develop test cases, conduct SIT, load test, and tune the performance of systems to meet
acceptance criteria.
• Perform and manage stages of the SCRUM and participate in the systems review with Project
Lead/Manager.
• Experience in the development of cloud-native applications is an added advantage.
• Experience working in Agile teams
What We Offer
• National and International Business Trips (if there is an opportunity)
• Culture of Knowledge Sharing and Training
• Modern & lively working environment
• Opportunity to write books, participate in conferences
• International assignment

Similar jobs
About Us
Tradelab Technologies is a leading fintech company building high-performance trading platforms, low-latency systems, and scalable market infrastructure for the global trading and broking ecosystem. We work at the intersection of technology, trading, and innovation.
Role Overview
We are looking for an experienced Python Backend Developer with strong expertise in trading, low-latency systems, or high-frequency trading (HFT). The ideal candidate will design, develop, and optimize backend components powering real-time trading systems.
Key Responsibilities
- Develop and maintain backend microservices and real-time trading components using Python.
- Build low-latency, high-throughput systems optimized for trading workflows.
- Integrate with market data feeds, order management systems, APIs, and broker/exchange interfaces.
- Write clean, scalable, and high-performance code with a focus on reliability and fault tolerance.
- Work closely with product, QA, and DevOps teams to deliver robust and scalable platforms.
- Troubleshoot production issues and optimize system performance.
- Ensure system security, stability, and compliance with industry standards.
Required Skills & Experience
- 5–8 years of backend development experience with Python.
- Strong experience in trading/HFT/fintech/market infrastructure is mandatory.
- Deep understanding of algorithms, data structures, and system design.
- Experience working with multithreading, multiprocessing, asynchronous programming.
- Strong knowledge of API development (REST, WebSockets).
- Experience with Redis, Kafka, RabbitMQ, PostgreSQL/MySQL, or similar technologies.
- Hands-on experience building low-latency and high-availability systems.
- Familiarity with Linux systems, shell scripting, and performance profiling.
- Exposure to FIX protocol, OMS, RMS, or market data systems is a plus.
Good to Have
- Knowledge of microservices architecture and containerization (Docker, Kubernetes).
- Understanding of exchange trading mechanisms and order lifecycles.
- Prior experience in broker terminals, algo systems, or risk engines.
Why Join Tradelab Technologies?
- Work on cutting-edge trading technologies impacting millions of users.
- Fast-paced, innovation-driven engineering culture.
- Opportunity to build mission-critical systems in fintech and HFT.
- Competitive compensation and growth opportunities.
Job Summary:
We are seeking a highly skilled and self-driven Java Backend Developer with strong experience in designing and deploying scalable microservices using Spring Boot and Azure Cloud. The ideal candidate will have hands-on expertise in modern Java development, containerization, messaging systems like Kafka, and knowledge of CI/CD and DevOps practices.Key Responsibilities:
- Design, develop, and deploy microservices using Spring Boot on Azure cloud platforms.
- Implement and maintain RESTful APIs, ensuring high performance and scalability.
- Work with Java 11+ features including Streams, Functional Programming, and Collections framework.
- Develop and manage Docker containers, enabling efficient development and deployment pipelines.
- Integrate messaging services like Apache Kafka into microservice architectures.
- Design and maintain data models using PostgreSQL or other SQL databases.
- Implement unit testing using JUnit and mocking frameworks to ensure code quality.
- Develop and execute API automation tests using Cucumber or similar tools.
- Collaborate with QA, DevOps, and other teams for seamless CI/CD integration and deployment pipelines.
- Work with Kubernetes for orchestrating containerized services.
- Utilize Couchbase or similar NoSQL technologies when necessary.
- Participate in code reviews, design discussions, and contribute to best practices and standards.
Required Skills & Qualifications:
- Strong experience in Java (11 or above) and Spring Boot framework.
- Solid understanding of microservices architecture and deployment on Azure.
- Hands-on experience with Docker, and exposure to Kubernetes.
- Proficiency in Kafka, with real-world project experience.
- Working knowledge of PostgreSQL (or any SQL DB) and data modeling principles.
- Experience in writing unit tests using JUnit and mocking tools.
- Experience with Cucumber or similar frameworks for API automation testing.
- Exposure to CI/CD tools, DevOps processes, and Git-based workflows.
Nice to Have:
- Azure certifications (e.g., Azure Developer Associate)
- Familiarity with Couchbase or other NoSQL databases.
- Familiarity with other cloud providers (AWS, GCP)
- Knowledge of observability tools (Prometheus, Grafana, ELK)
Soft Skills:
- Strong problem-solving and analytical skills.
- Excellent verbal and written communication.
- Ability to work in an agile environment and contribute to continuous improvement.
Why Join Us:
- Work on cutting-edge microservice architectures
- Strong learning and development culture
- Opportunity to innovate and influence technical decisions
- Collaborative and inclusive work environment
About Card91
Card91 is simplifying business payments by providing a plug and play issuance infrastructure to businesses for domestic and cross-border payments. Our full stack platform enables businesses to gain control and visibility into their payment flows, controlling the entire payment lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform aims to provide holistic solutions around payment issuance and distribution management. Our deep focus in payments will help us in bringing new issuance formats as well as technologies to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded successful companies like Myntra, Mastiff Tech earlier. Headquartered in Bangalore, with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space in the issuer-processor segment.
About the role
Our core issuance and processing system runs on Java. This system is responsible for powering the card issuance and management user experience as well. We are using Spring Boot stack for building our services.
The issuance backend team will be a small team of 2-4 developers, with a meaty responsibility to bring the user experience to life. It will be a hands-on role where every member of the team enjoys writing high quality code, and thrives on each other's experience.
If the following broad attributes sound like you, we would love to talk to you
-
4-6 years experience in backend services in Java.
-
Strong understanding of relational databases.
-
Ability to develop clean data models for complex problem domains.
-
Pragmatic approach to architecture and design - knowing when it is ok to deviate from
said best practices in the interest of practicality.
-
Above average writing and communication skills in English. Enjoy writing crisp and understandable documentation.
Why you should join
-
You enjoy working in smaller teams. We are a startup, and we believe that smaller teams are a super-power. There is lesser management overhead, and more talk about the work that matters.
-
You care about end-user and developer experience - and how the backend impacts that. Working backwards from what the user experience demands, rather than giving up to the path of least resistance.
-
We pay well (above market average). We are sufficiently capitalised by some prestigious investors in the Fintech space and we are looking at the long game. It is a fun and exhilarating journey ahead and we look forward to having some great team mates!
As a Senior Software Engineer you have complete ownership of building out the Docexa product along with product people and the rest of the engineering team. This role will act as a great springboard to accelerate career growth & transition into a Tech Lead level role.
Your daily life
- Architecting of the whole platform
- Development of server-side logic
- Building new services and APIs
- Developing core business logic
- Maintenance of current APIs
- Improving the performance and reliability of our systems as we scale
Must-have skills
- You’ve been building web applications professionally for 4+ years
- You’re proficient in PHP 7, Laravel, and PostgreSQL
- You possess strong OOP and design pattern knowledge
- You are familiar with modern technology systems: AWS, load balancers, Kafka queues, caching, etc.
- You write understandable, testable and easy to maintain code
- You’ve the ability to build RESTful APIs
- Explaining complex technical concepts to designers, support team, and fellow engineers is not a problem for you
- Well versed with the fundamentals of computer science and distributed systems

Responsibilities:
- Crawl the internet/intranet for issues people are facing and convert them in to stuctured data that would be consumed downstream.
- Familiar with the software development life cycle (SDLC) from analysis to deployment.
- Comply with coding standards and technical design.
- Adapts structured coding styles for easy review, testing, and maintainability of the code.
- Integrate the developed functionality and/or component into a fully functional system.
- Ensure unit and integration level verification plans are in place and adheres to the great quality of code at all times.
- Actively participate in troubleshooting, debugging and updating current live system.
- Verify user feedback in making the system more stable and easy.
- Work closely with analysts, designers, and other peer developers.
Requirements:
- Bachelor's degree in computer science or equivalent practical experience.
- Understanding of OOPS concepts, Persistence, Threading.
- Good understanding of version control system (GIT).
- Knowledgeable in data structures and algorithms.
- A background in Engineering with sound oral and written communication skills.
- 6+ years of experience working on the server-side.
- Exposure to API designing, scalable architecture, and thorough understanding of systems.
- Great database modeling skills.
- Working knowledge of Databases, both relational (such as PostgreSQL) and in-memory database (such as Redis).
- Good understanding of web stack and how all the pieces fit together.
- Experience with open-source projects.
- Experience in designing interactive applications.
2. Demonstrable abilities to optimize code. Strong analytical skills for effective problem solving
3. Experience in Java Spring, Hibernate, Github. Spring boot optional









