Middle Nest.js Developer (Trading Space) to $2500
Location: Remote
Job Type: Project Contract 4 months
Start Date: ASAP (As Soon As Possible)
Please note: This is a contract position with an immediate start date. We are looking for a candidate who can quickly integrate into our team and begin contributing from day one.
About Us
TechChain Solutions is a dynamic technology firm focused on building high-performance financial platforms. We create sophisticated tools that empower users to navigate complex market environments with speed and reliability. Our team is driven by innovation, and we are currently developing a new trading platform from the ground up.
The Role
We are seeking a skilled Middle Nest.js Developer to join our core backend team. You will step into a project with a well-structured, high-quality codebase and play a key role in implementing complex business logic within our microservices architecture.
Your primary focus will be the automation of trading operations on Centralized Exchanges (CEX). You will be responsible for translating trading strategies into robust, high-performance code, building out the logic for working with orders, and ensuring seamless, low-latency integration with various exchange APIs. This is a hands-on role where you will be writing the code that powers our automated trading bots.
Key Responsibilities:
- Develop and Maintain Backend Services with Nest.js and TypeScript. Your core task will be to write clean, efficient, and reliable code within our existing microservices architecture, focusing on the implementation of trading-related features.
- Work with Databases using Prisma ORM. You will be responsible for writing queries, managing data, and working with schemas in PostgreSQL, using Prisma as the primary tool for database interaction.
- Work with a Large, Existing Codebase. You will need to quickly get up to speed with our current architecture, understand how the services interact, and continue development while adhering to our established quality standards.
- Integrate with Third-Party CEX APIs (REST & WebSocket). You will implement the logic to connect with centralized exchanges to fetch order books, manage trades, and handle real-time market data.
- Implement Trading Logic and Automation. You will translate trading strategies and business requirements into functional code, building out the core logic for our Order Service and automating actions with exchanges.
- Collaborate with the Team. You will work closely with the Backend Lead, other developers, and the frontend team to define and ship features in a fast-paced environment.
Required Qualifications & Skills (Must-Haves):
- 2.5+ years of professional experience in backend development with Node.js and TypeScript.
- Strong, hands-on experience building applications with the Nest.js framework.
- Solid experience with relational databases, specifically PostgreSQL, and practical skills using Prisma ORM.
- Hands on using CEX DEX
- Experience integrating with complex third-party APIs.
- Experience with message broker technologies (we use BullMQ).
- Proficiency with Git and modern development workflows.
A proactive mindset with strong problem-solving skills.
How to know if you are the right fit:
- You understand the differences between a CEX (Centralized Exchange) and a DEX (Decentralized Exchange) and have hands-on experience using both.
- You are comfortable working within an existing microservices architecture and can quickly adapt to a large codebase.
- Will be a big plus if you have practical experience building trading bots or other systems that automate actions with exchange APIs.
- You understand the difference between a Limit Order and a Market Order and understand what is Order Book and hot it works.
- You have a strong interest in the Crypto/FinTech space and are eager to work on a high-performance trading platform.
What We Offer:
- Competitive compensation.
- A fully remote and flexible work environment.
- The opportunity to work on a high-impact, greenfield project with a modern tech stack.
- A focused and collaborative team culture.