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Senior or Mid Backend Software Engineer (m/f/d)

Tradevest
1 day ago
Full-time
Remote
Backend Development

Tech stack you’ll work with

  • Core: Golang, AWS Serverless (Lambda, API Gateway, SQS)
  • Data: DynamoDB, PostgreSQL
  • Messaging: Kafka
  • Ops / Tooling: Terraform, Guthub Actions (CI/CD)
(If you haven’t touched every tool yet, no worries — we’ll get you up to speed.)

Your mission and responsibilities

Mid Backend Software Engineer

  • 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

Additional tasks of the Senior

  • 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!

Apply now!

About us


Tradevest is a leading FinTech company offering an innovative platform for securities and cryptocurrency trading, specifically tailored for institutional clients. In Germany, Tradevest holds BaFin licenses as a securities institution, ensuring full regulatory compliance. With our cutting-edge development hub located in Warsaw, Tradevest Polska Sp. z o.o. we drive the technical innovation behind our products. Additionally, through our brand WAWEX, we operate a state-of-the-art cryptocurrency exchange, 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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