Low-Latency Crypto Trading Backend Engineer

JST Digital; Warszawa; On-site; PLN 120,000 - 180,000; Full time

Job summary

JST Digital in Warszawa seeks a hands‑on software engineer to join the core trading infrastructure powering market‑making and execution of digital assets. You will work on exchange connectors, order management, and live systems that process real capital and orders 24/7.

Expect to build, debug, and extend production‑grade code in Python or C++, with strong focus on observability, reliability, and rapid incident response. A fast‑paced, impact‑driven environment awaits.

Qualifications

• Degree in Computer Science, Electrical Engineering, or equivalent.
• 1 year professional coding experience with Python, C++ or similar language.
• Demonstrated proficiency in Python or C++ if only one is known.
• Solid understanding of asynchronous/concurrent programming and OO/FP paradigms.
• Familiarity with networking fundamentals and third‑party APIs.
• Comfortable with Linux, shell scripting, version control and debugging tools.
• Evidence‑driven debugging approach and ownership mindset.

Responsibilities

• Build and maintain exchange connectivity across major cryptocurrency venues, handling order submission, fills, cancellations and real time market data ingestion.
• Analyze trading history and resolve production incidents: trace fills, diagnose issues, write reconciliation scripts, and deliver root cause analyses.
• Create and operate monitoring and alerting tools to ensure issues are caught before they reach the trading desk.
• Manage and tune cloud infrastructure — process orchestration, resource allocation, and log management.
• Write tooling and automation for trade operations, data extraction, and day‑to‑day platform tasks.
• Support the trading desk by keeping production systems healthy, diagnosing issues as they arise, and ensuring the platform is always available and performing.

Skills

Python

C++

Async programming

Linux

APIs integration

Debugging

Education

Bachelor's in CS/EE or equivalent

Job description

JST Digital in Warszawa seeks a hands‑on software engineer to join the core trading infrastructure powering market‑making and execution of digital assets. You will work on exchange connectors, order management, and live systems that process real capital and orders 24/7.

Expect to build, debug, and extend production‑grade code in Python or C++, with strong focus on observability, reliability, and rapid incident response. A fast‑paced, impact‑driven environment awaits.