Backend Developer – Trading Systems

About the job

Position: Backend Developer – Trading Systems

Location: Madurai, TamilNadu, India (Onsite).

Industry: Trading & Financial Markets

Experience: 5+ years.

About KoinBX

KoinBX is one of the leading FIU-registered centralized cryptocurrency exchange founded in India, operating successfully for over six years. We've grown steadily with a clear vision: to make crypto trading secure, simple, and accessible to users around the world.

Our platform supports a wide range of digital assets and is known for its strong security framework, intuitive user experience, and commitment to transparency. With a growing global user base, KoinBX is building a trusted ecosystem where traders and investors can confidently engage with the future of finance.

As we continue to lead the charge in the Web3 revolution, we'd love to have you on board Join our team of passionate innovators who are pushing boundaries and shaping the future of Web3. Together, we'll simplify the complex, unlock the inaccessible, and turn the impossible into reality.

Position Overview:

We are looking for an experienced Backend Developer with a solid background in building and optimizing trading systems across spot, futures, and perpetual markets. The ideal candidate should have a deep understanding of liquidity, positions, funding rates, risk management, and execution flow. Prior hands-on experience in traditional stock markets, commodities, forex, or cryptocurrency trading platforms is required.

You will work closely with our trading, product, and infrastructure teams to design scalable backend systems that handle high-performance, low-latency trading operations.

You'll be diving into these tasks:

• Design, develop, and maintain backend services for trading systems (spot, futures, perpetuals).
• Implement and optimize order management, risk management, and position tracking systems.
• Work with liquidity providers, exchanges, and APIs to ensure seamless execution and settlement.
• Build tools to monitor and manage positions, margin, leverage, and funding rate calculations.
• Ensure system reliability, scalability, and low latency for real-time trading.
• Collaborate with front-end, DevOps, and quant teams to support trading strategies and integrations.
• Maintain strong security practices for sensitive financial data.

Bring these HODL-worthy skills to the table:

• 5+ years of backend development experience in trading systems (traditional or digital assets).
• Strong background in stock markets, commodities, forex, or cryptocurrency trading.
• Hands-on knowledge of liquidity pools, order books, matching engines, and settlement flows.
• Experience with funding rates, margin trading, and leverage mechanics.
• Proficiency in one or more backend languages (Java, C++, Go, Rust, Python, or ).
• Experience with databases (SQL/NoSQL), caching, and real-time data streaming.
• Familiarity with low-latency, high-throughput distributed systems.
• Strong problem-solving and debugging skills in production environments.
• Knowledge of APIs, WebSockets, and trading integrations.

Nice to Have

• Experience in algorithmic or high-frequency trading environments.
• Knowledge of smart contracts and DeFi trading mechanics.
• Previous experience at an exchange, brokerage, or prop trading firm.

Why Join KoinBX?

• Be part of India's rapidly growing blockchain technology company.
• Contribute to the evolution of the cryptocurrency industry.
• Develop customer-facing technology products for global users.
• Work in a performance-driven environment that values ownership and innovation.
• Gain exposure to cutting-edge technologies with a steep learning curve.
• Experience a meritocratic, transparent, and open work culture.
• High visibility in the global blockchain ecosystem.

KoinBX Interview Process:

• Initial Screening – Telephonic or In-Person Interview.
• Technical Assessment – Evaluating core competencies.
• Final Interview – With Department Head and key stakeholders.

Perks & Benefits at KoinBX:

• Exciting and challenging work environment.
• Opportunity to work with highly skilled professionals.
• Team events and celebrations.
• A dynamic and growth-oriented career path. Join us and be a part of the revolution in the cryptocurrency industry

Job Type: Permanent

Application Question(s):

• What is your current CTC?
• What is your Exepected CTC?
• What is your Notice Period ?
• Must be able to join immediately?
• Do you have hands on experience in backend?
• Do you have experience in any of trading platform or Exchange platform?

Location:

• Madurai, Tamil Nadu (Required)

Work Location: In person