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Software Development Engineer in Test - Pro

Poland💼 Full-time🗓 2026-06-12 → 2026-07-31

Core

Build and maintain automated testing solutions, CI/CD tooling, and quality engineering workflows for complex backend trading systems and APIs.

Role type

SDET (Software Development Engineer in Test) for backend trading infrastructure

Builds

Automated test frameworks, CI/CD pipelines, and quality tooling for matching engines, market data gateways, and trading APIs

Domain

Cryptocurrency exchange / High-frequency trading / Fintech

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

Python, Rust, C++, REST API testing, WebSocket, gRPC, FIX protocol, CI/CD pipeline management, Docker containerization, trading system concepts (order lifecycle, execution flows, margin), AI-assisted development tools

Preferred skills

Experience in real-time high-availability environments, deep understanding of exchange mechanics

Technologies

Rust, Python, C++, Docker, REST, WebSocket, gRPC, FIX, CI/CD tools

Responsibilities

Design and maintain automated tests for backend APIs and trading workflows; Contribute to automation frameworks and CI/CD pipelines; Review code changes for quality and testability risks; Investigate test failures and production issues; Perform exploratory testing for edge cases; Validate backend services and APIs during development and release cycles

Seniority

Mid-level to Senior, hands-on IC

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