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Senior Backend Software Engineer (m / f / d)

Tradevest Markets GmbHWarsaw, PL

22 days ago

Job description

Tech stack you’ll work with

Core : Golang, AWS Serverless (Lambda, API Gateway, SQS)
Data : DynamoDB, PostgreSQL
Messaging : Kafka
Ops / Tooling : Terraform, Gitlab Actions (CI / CD)

If you haven’t touched every tool yet, no worries — we’ll get you up to speed.)

Your mission and responsibilities

Implement new micro-services and extend existing ones in Go.

Help groom user-story requirements and surface performance / scaling concerns early.

Write unit, integration and API tests; review PRs.

Tune data-models in DynamoDB & Postgres for low-latency, high-throughput workloads.

Pair with DevOps on CI / CD and observability improvements.

Participate in on-call rotation as we’re building high available fintech system

Design and drive high-scale, low-latency services (tens of thousands of orders / sec).

Lead architecture reviews, challenge assumptions and keep tech debt in check.

Partner with Product on roadmap feasibility & effort sizing.

Be a mentor to less experienced colleagues.

Your qualifications and experience

3 years of professional back-end experience (ideally 1 year+ in Go).

Solid grasp of cloud-native design (RESTful APIs, event-driven patterns).

Working SQL and NoSQL skills; know when each shines.

Comfort diagnosing performance bottlenecks in distributed systems.

Ability to work on-site in Warsaw twice a week (Tue & Thu) and remotely otherwise.

Nice to have

Exposure to serverless architectures on AWS.

Experience with Kafka or another high-volume message bus.

Knowledge of automated trading, market data, or FIX / crypto exchanges.

Familiarity with Infrastructure-as-Code (Terraform or CDK).

Contract

B2B / Employment contract

Location

Hybrid (Warsaw – in-office every Tuesday & Thursday)

Why us?

What We Offer :

An experienced, welcoming team that loves clean, well-tested code.

Real impact : the features you ship go straight into production for live traders.

Flexible hours, modern tooling, and a fintech domain that’s never boring.

Occasional work travel to Germany (Munich / Berlin)

20 days PTO on B2B

Multisport card

Apply now!

About us

Tradevest is a leading FinTech company offering an innovative platform for securities and cryptocurrency trading, specifically tailored for institutional clients. With our cutting-edge development hub located in Warsaw, Tradevest Technologies Warsaw, we drive the technical innovation behind our products. Additionally, through our brand WAWEX, we operate a state-of-the-art cryptocurrency exchange in Warsaw, providing a seamless and secure trading experience. Our mission is to empower institutional traders with advanced tools and technologies that redefine the trading landscape.

WAWEX is a cutting-edge fintech platform at the forefront of the digital finance revolution. Empowering financial institutions, brokers, and banks, WAWEX delivers seamless access to over 75 cryptocurrencies, combining state-of-the-art security with unparalleled market depth. Through innovative tokenization and real-time market insights, WAWEX is shaping the future of trading. With robust API integrations and 24 / 7 availability, this dynamic platform is designed for institutions ready to embrace the fast-paced world of digital assets and unlock limitless opportunities in global finance.

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Senior Software Engineer • Warsaw, PL