Python Developer at Tradelab Software Private Limited · Bengaluru (Bangalore) · 3 - 5 years · ₹10L - ₹15L / yr · Raised funding · Posted 12 Dec 2025

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:
• We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and
a deep interest in scalable, low-latency systems.
• You should have 3–4 years of experience in Python-based development and be eager to solve complex
performance and scalability challenges in trading and fintech applications.
• You measure success by your own growth, not external validation.
• You thrive on challenges, not on perks or financial rewards.
• 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 maintain scalable backend systems using Python.
• Design and implement REST APIs and socket-based communication.
• Optimize code for speed, performance, and reliability.
• Collaborate with frontend teams to integrate server-side logic.
• Work with RabbitMQ, Kafka, Redis, and Elasticsearch for robust backend design.
• Build fault-tolerant, multi-producer/consumer systems.
Must-Have Skills:
• 3–4 years of experience in Python and backend development.
• Strong understanding of REST APIs, sockets, and network protocols (TCP/UDP/HTTP).
• Experience with RabbitMQ/Kafka, SQL & NoSQL databases, Redis, and Elasticsearch.
• Bachelor’s degree in Computer Science or related field

About Tradelab Software Private Limited
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Experience : 5 to 12 Years
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Job Summary :
We are seeking an experienced Senior Java Developer to join the software team of a leading Clinical Research organization.
The role involves application development and feature enhancement for enterprise products, ensuring high performance, scalability, and code quality.
Mandatory Skills :
Java 8+, Hibernate, Oracle Database, PostgreSQL, JAX-RS (RestEasy), Jackson, REST APIs, JSP, React.js, GitHub, GitHub Actions, SonarQube, SonarLint, and basic AWS services (IAM, SNS, SQS, S3, CloudWatch).
Key Responsibilities :
- Develop and enhance enterprise applications using Java technologies.
- Design and implement RESTful APIs and integrate backend services.
- Write and optimize SQL queries for Oracle and PostgreSQL databases.
- Build and maintain UI components using JSP and React.js.
- Manage source code and CI/CD pipelines using GitHub and GitHub Actions.
- Ensure code quality and maintainability using SonarQube and SonarLint.
- Work with AWS services to support application deployment and monitoring.
- Collaborate with cross-functional teams to deliver high-quality solutions.
Required Skills :
- Strong experience with Java 8 or above and Hibernate framework.
- Hands-on experience with Oracle Database and PostgreSQL, including advanced query writing.
- Proficiency in JAX-RS (RestEasy) and Jackson for REST API and JSON processing.
- Experience in developing web applications using JSP.
- Knowledge of React.js for frontend development.
- Experience with GitHub and GitHub Actions for version control and CI/CD.
- Familiarity with SonarQube and SonarLint for code quality analysis.
- Basic hands-on experience with AWS services, including IAM, SNS, SQS, S3, and CloudWatch.
- Ability to work effectively in a collaborative and fast-paced environment.
Role: Senior Backend Developer
Exp: 4 - 7 Years
CTC: up to 22 LPA
Key Responsibilities
- Design, develop, and maintain scalable applications using Java (Spring Boot) and Python (Flask).
- Build RESTful APIs and microservices following best practices.
- Implement event-driven architecture leveraging NATS messaging server.
- Deploy, manage, and optimize applications in Kubernetes and containerized environments.
- Develop and manage CI/CD pipelines, ensuring smooth deployment and delivery.
- Collaborate with cross-functional teams to deliver high-quality solutions.
- Write clean, maintainable, and well-documented code.
- Participate in code reviews and contribute to architectural decisions.
- Troubleshoot, debug, and optimize application performance.
About Company
Our client is in the business of delivering cutting-edge software solutions, hardware systems, and IT services. It lends the right technological edge to governments and businesses. This enables them to achieve their organizational objectives efficiently and effectively to scale their businesses to newer heights.
Minimum Requirements/Qualifications:
• Bachelor’s/Master’s degree in computer science, Computer Engineering or a related field is preferred.
• Must have at least 5 to 7 years of experience in PostgreSQL.
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts.
• Knowledge & hands-on experience with PostgreSQL, Java, and Spring Framework is a must.
• Additional knowledge of JDBC, Apache TomCat Server & relevant open-source technologies is required.
• Must have experience with Bootstrap CSS, jQuery, etc.
• Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database
Connectivity), and RESTful web services.
• Experience in handling external and embedded databases.
Roles & Responsibilities
• Maintaining the Database, creating efficient queries, and understanding and improving the current database structure.
• Develop new modules, patches & Updates/upgrades for an existing application (developed in house by the client)
• Analyze user requirements to define business objectives.
• Maintain Java-based applications that can be high-volume and low-latency.
• Identify and resolve any technical issues arising.
• Write well-designed, testable code.
• Conducting software analysis, programming, testing, and debugging.
• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.
Only 10% of India speaks English and 90% speak over 25 languages and 1000s of dialects. The internet has largely been in English. A good part of India is now getting internet connectivity thanks to cheap smartphones and Jio. The non-english speaking internet users will balloon to about 600 million users out of the total 750 million internet users in India by 2020. This will make the vernacular segment one of the largest segments in the world - almost 2x the size of the US population. The vernacular segment has very few products that they can use on the internet. One big need is that of sharing thoughts. Twitter serves this need globally through a micro-blogging platform. However most of the Tweets are in English and the vernacular Indian feels out of place on it. To solve that problem, we started Koo.
About The Company
The app is a micro-blogging platform in Indian languages. It is an app built in India, for Indians, to share their thoughts and opinions on any topic in their mother tongue using Audio/Video/Text. Koo gives a voice to Indians and enables the “Best of India” to share their thoughts with the “Rest of India”. We provide a personalised feed to users by letting people select the people they want to follow. The user is then shown content from these people. Some of the top minds of India are invited to share their thoughts and opinions on various topics. Users can follow such personalities and follow what they are talking about, and share their opinions too.
We are a Series A venture funded company. It has raised $6.5 million from stellar investors like Accel Partners, Shunwei Capital, Kalaari Capital, 500startups and Blume Venture Partners.
Technology Team & Culture
Nishant (CTO), has headed engineering for large and complex platforms like Coverfox and CitrusPay catering to the needs of millions of consumers. Technology team comprises sharp coders, technology geeks and guys who have tried entrepreneurship or are very entrepreneurial in nature and extremely passionate towards technology. Anyone being part of a technology team will have a lot to learn from their peers and mentors. Download our android app nearing 1 million downloads from play store and take a look at what we are trying to build. Technology stack compromises of a wide variety of cutting edge technologies like Elixir, Java 11, Reactive Programming, MongoDB, Neo4j, Kubernetes, AWS, NodeJS, Python, ReactJS, Redis, Aerospike, ML, Deep learning etc. Working hard & party harder is the mantra that we believe in.
Technology skill sets required for a matching profile
1. Work experience between 2 years to 8 years in building large scale high user traffic consumer facing applications with desire to work in a fast paced startup.
2. Knowledge on reactive and asynchronous programming is preferable. If you have worked with coroutines, goroutines, high concurrency or optimized number of threads for processing on your backend server you could be a good fit.
3. Extremely proficient at writing performant, scalable and production ready code in Kotlin, Java (8 or above, comfortable with concepts like lambda, streams, multithreading etc), Elixir, Rust, or Golang. Should be familiar with static code analysis, code coverage and code reviews.
4. Experience with NoSQL DBs like MongoDB, Cassandra, Redis or Aerospike is required.
Knowledge of graph DBs like Neo4j is preferred.
5. Strong in algorithms, problem solving and data structures.
6. Knowledge of TDD and experience with building applications integrated with CI-CD pipelines (automated build, tests and deployments).
7. Exposure to micro-services with good understanding of containers, kubernetes, logging, alerting and monitoring. Inter services communication. Should know how to handle multiple versions of APIs.
- Apply fundamental software engineering design principles and write effective, scalable code.
- Develop back-end components to improve responsiveness and overall performance
- Strong understanding of multi-threading, synchronization & performance analysis of web applications
- Highly experienced with developing RESTful API’s
- Integrate user-facing elements into applications
- Develop unit tests, automation and debug code
- Improve & maintain the functionality of existing systems
- Implement security and data protection solutions
- Understand the big picture, coordinate with internal teams to understand user requirements and provide technical solutions
Roles & Responsibilities
- Bachelor’s degree in Computer Science, Information Technology or relevant field.
- 5+ work experience as a Python Developer
- Expertise in Django or at least one other popular Python web framework
- (like Flask or Pyramid)
- Excellent Python 3 development & debugging skills
- Knowledge of object oriented analysis & design as well as object-relational mapping (ORM) techniques
- Strong understanding microservices architecture & design patterns
- Strong understanding of RESTful API design principles, including good
- documentation of API using Swagger/OpenAPI specifications
- Familiarity with GIT
- Familiarity with microservices development & deployment, including CI/CD pipelines
- (e.g. Jenkins) and containerization platforms (e.g, Docker)
- Familiarity with front-end technologies (like JavaScript and HTML5)
- Excellent team spirit & exceptional problem-solving skills
We are looking for a Java developer responsible for building Java applications. This includes anything between complex groups of back-end services and their client-end counterparts. Primary responsibility will be to design and develop these types of applications and to coordinate with the rest of the team working on different layers of the infrastructure.
Responsibilities:
Contribute to all stages of the software development lifecycle
Design, build and maintain efficient, reusable, and reliable Java code
Design, implement and maintain applications that can be high-volume and low-latency
Identify bottlenecks and bugs, and devise solutions to these problems
Help maintain code quality, organization, and automatization
Skills:
Minimum 3+ years of experience in Java
Proficient in Java and Springboot
Solid understanding of object-oriented programming
Familiar with various design and architectural patterns
Skill for writing reusable Java libraries
Familiarity with concepts of MVC, and RESTful
Proficient understanding of code versioning tools, such as Git
Familiarity with build tools such as Maven, and Gradle
Excellent knowledge of Relational Databases, SQL, and ORM technologies (Hibernate)
Excellent written and verbal communication.
Requirements:
• Required experience of 3 to 8 years
• Required Skill Set: Core Java, Java 8, Spring, Spring Boot, Database, Unit Testing & Rest API.
• Good to have Microservices
• Familiarity with concepts of MVC, JDBC, and RESTful
• You will be responsible to perform- requirement analysis, high-level design, coding, unit testing, and general quality assurance of the web applications
• Knack for writing clean, readable Java code
• Understanding fundamental design principles behind a scalable application
• Good to have knowledge of Spring Security, and JPA
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• Designing and implementing Java-based applications.
• Analyzing user requirements to inform application design.
• Defining application objectives and functionality.
• Aligning application design with business goals.
• Developing and testing software.
• Debugging and resolving technical problems that arise.
• Producing detailed design documentation.
• Recommending changes to existing Java infrastructure.
• Developing multimedia applications.
Sr. Backend Developer | Disruptive HR Tech Platform | GGN
Job Description:
- Developing new user-facing features.
- Writing clean, reusable, high-quality, high-performance, maintainable code.
- Encouraging innovation and efficiency improvements to ensure processes are productive
- Ensuring the training and mentoring of the team members
- Ensuring the technical feasibility of UI/ UX designs and optimizing applications for maximum speed.
- Researching and applying new technologies, techniques, and best practices
- Writing blog posts and having a strong record on StackOverflow and similar sites
What you need to have:
- Bachelors/ Masters in Computer Science or a related field
- Experience with web technologies and microservices architecture
- Java, Spring framework
- MySQL, Mongo, Solr, Redis,
- Kubernetes, Docker
- Excellent teamwork skills, flexibility, and ability to handle multiple tasks.
- Experience with API Design, ability to architect and implement an intuitive customer and third-party integration story
- Ability to think and analyze both breadth-wise (client, server, DB, control flow) and depth-wise (threads, sessions, space-time complexity) while designing and implementing services
- Exceptional design and architectural skills
- Experience of cloud providers/platforms like GCP and AWS
- Experience in working with micro-services, containers, or big data technologies
- Experience with high-performance websites, orchestrating data pipelines, ETL frameworks
Experience: 4 to 7 years
● Responsible for developing high end web applications in various areas related to
SAAS (Software as a service)
● Developing ideas for new programs, products, or features by monitoring industry
developments and trends
● Collaborating with the front-end developers and other team members to establish
objectives and design more functional, cohesive codes to enhance the user
experience
● Liaise with developers, designers and customer success teams to identify new
features
● Should have experience to integrate & customize third party plugins
● Knowledge of SaaS or e-commerce industry will be preferred
Required Skills:
● 5-7 years’ experience as a Sr. Web Developer in developing web applications
● Strong experience in PHP, MySQL, Laravel, Rest APIs, Ajax & jQuery
● Good exposure in Payment Gateway process
● Should have good exposure in Server Setup, AWS Console, Digital Ocean,
Handling DNS and Linux/Ubuntu command line
● Fluency or good understanding of Nodejs & MongoDB will be preferred
● In-depth understanding of the entire web development process such as design,
development and deployment
● Familiarity with front-end languages like HTML, JavaScript and CSS
● Strong understanding of the web development and programming techniques and tools
● Focus on efficiency, user experience, and process improvement
● Excellent analytical and time management skills
● Excellent communication and problem-solving attitude
● Familiarity with SaaS Products is a plus
● Degree from IT/Computer Science background is preferred








