Backend Developer (from SDE1 to SDE3)

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.

• 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.

• 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.

What We Expect:

• 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.

Job description for Backend Developer:

Responsibilities
• Hands-on experience in Springboot and good knowledge of MySQL, MongoDB
• Hands-on experience in building RESTful based APIs
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Integration of user-facing elements developed by front-end developers with server-side logic
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability•
• Implementation of security and data protection

Skills And Qualifications
• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3
• Understanding accessibility and security compliance (Depending on a specific project)
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Management of hosting environment, including database administration and scaling an application to support load changes
• Data migration, transformation, and scripting
• Outputting data in different formats
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient knowledge of a back-end programming language (Java 8 and above and Spring Boot)
• Proficient understanding of code versioning tools, such as Git
• Proficient understanding of OWASP security principles
• Understanding of “session management” in a distributed server environment

Required qualification:

*)  Any degree from a reputed university

*) Proven software development experience and Java/J2EE skills development. 

Job Description

Who are we looking for?

A senior level Java-J2EEE lead to manage a critical project for one of the biggest clients in banking domain. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications.
We are looking for people from the trading background

Technical Skills: 

• An excellent tech Lead or application architect with strong experience in monolithic Java legacy applications, modern cloud-native

• Strong hands-on experience in Spring, Core Java specifically on multi-threading, concurrency, memory management process, and fair understanding on network communication & protocols. 

• experience working in software development on low-latency and high performing systems

• Experienced to guide & mentor the offshore team members, validating application deliverables on regular basis

• Ability to work in a collaborative manner with peers across different time zones. 

• Passionate about good design and code quality and have strong engineering practices

• Experience working on GCP will be preferred. 

Process Skills: 

• Experience in analyzing requirements and develop software as per project defined software process
• Develop and review design, code
• Develop and document architecture framework, technical standards, and application roadmap
• Guide development teams to comply with the architecture and development standards and ensure quality application is designed, developed, and delivered
• Must   have excellent communication skills.

Behavioral Skills:

• Resolve technical issues of projects and Explore alternate designs
• Effectively collaborates and communicates with the stakeholders and ensure client satisfaction
• Mentor, Train and coach members of project groups to ensure effective knowledge management activity.

Certification:

• Ultimate sun Java and GCP Certified 

• Working knowledge of Node-Sync, callback hell and ways to control asynchronous behavior of Node functions.
• Strong command on ES6(EcmaScript) or Javascript and its concepts like prototypes, call back, closures etc
• Should have deep understanding of Native Node.js, Express.js, HAPI.js and middlewares.
• Candidates must have proper understanding and command on RESTful API development and consumptions.
• Candidates must know to use promises, async-await to control synchronization of business logic components.
• Candidates must have knowledge of JWT, oAuth and passport.js for user authentication.
• Candidates must have knowledge of GIT, Bit-bucket.
• Candidates must have knowledge of application deployment.
• Experience with NoSQL databases eg mongodb (preferred).

Opportunity in our Product Team?
Our system has over 4 products & 12 modules designed by product managers working with banking & finance experts. The company’s growth from here is based on a multi-product strategy. The way we’re scaling our product team is in-line with the company’s strategy.

Your customers are the CFOs & Finance Teams in mid to large scale enterprise businesses and you will build these products to solve the problems faced by them.

You’ll become familiar with all parts of our stack from end to end. You’ll design and implement features to be scalable and resilient by working with both our infrastructure engineers and our product engineers. You’ll be a driver for positive change to Finly’s engineering culture, processes and technology.

Here are some examples of the projects in the different products:
Payment automation by building a deep integration with multiple banking systems:

• Governance frameworks with policy controlled workflows.
• Core finance document management system.
• Automating reconciliation of transactions across business
• Collaboration tools among finance, vendors & employees.
• Continuous ETL for integrating with CRMs like Salesforce & Accounting Systems like SAP.

WITHIN 1 MONTH, YOU'LL

• Complete Finly’s new-hire training week, and learn Accounts Payable
• Processes & the various partners we work with to make Finly happen.
• Investigate, solve and release a bug fix to production. In order to do this you will ramp up on Finly’s engineering stack by pair-programming with your teammates and attending engineering training sessions designed and presented by the team.
• Meet with cross-functional peers around the company to learn how the product functions.
• Complete your engineering starter project and deploy your first changes to production.

WITHIN 3 MONTHS, YOU'LL

• Individually contribute reliably ship full features to customers.
• Own major product areas and take features from mock to deploy.
• Estimate technical scope and time to complete major features and initiatives.

WITHIN 6 MONTHS, YOU'LL

• Move to new product vertical & initiative and start designing and architecting scalable systems as per the requirements discussed with Product Manager.
• Have made a visible impact on the product for all the users of Finly.
• Work closely with your team to remove roadblocks, educate on best practices and improve how we work.
• Be comfortable navigating most of our stack and infrastructure
• Be responsible for the planning, scoping, design, and implementation of new features
• Participate in interviewing and hiring, as a way to influence team growth and how our values inform our culture

WITHIN 12 MONTHS, YOU'LL

• Individually contribute and lead teams to reliably ship full features to customers.
• Estimate technical scope and time to complete major products and initiatives.
• Define tools and standards for product engineering to measure performance impact of releases
• Help grow other engineers technically by mentoring, pairing and developing other learning opportunities
• Collaborate with engineering and product leadership to define priorities and set delivery goals.

So in this role, you will work with the respective team’s product manager and other engineers in that team. You may work on the front-end or backend or both based on the requirement of the project.

Join us & have the authority and responsibility to make things happen!