Java Fintech Developer

What you will work on

Developing large-scale, real-time trading applications, mainly in Java (with some Python and C#)

Designing architectures and implementing technical and business modules – pricing, quoting, execution, risk monitoring, hedging

Owning complex application logic where correctness, latency and throughput all matter

Talking directly to clients, analysing their requirements and turning them into solid solutions

Working in an international team with motivated and experienced colleagues

Using AI as a powerful tool in the hands of engineers who understand what happens underneath

What we are looking for

Excellent knowledge of Java (21+): concurrent programming, data structures, API design

A genuine interest in what happens under the hood – Java Memory Model, GC behaviour, performance

Comfort working in Linux/Unix

Experience with complex distributed systems, or a strong drive to get into them

Good communication skills in English

University degree in Computer Science, IT or a related field

Extra points for

Knowledge of financial markets and products (equities, derivatives, fixed income, crypto) or IT experience in banking/financial services – and if you don’t have it yet, you will pick it up with us

Data distribution technologies (Redis, Apache Ignite, Infinispan, GigaSpaces etc.)

Python, C#/.NET

Docker, Kubernetes and virtualisation

Low-latency techniques: zero-garbage design, lock-free programming, GC tuning (e.g. Shenandoah, ZGC)

Market data platforms such as LSEG RTDS (Reuters), Bloomberg

MongoDB, Couchbase, PostgreSQL, ClickHouse

Hands-on experience with AI-assisted development or LLM-based tools

What we offer

Work on systems where performance really matters

Room to grow – from core Java engineering towards architecture, the finance domain and AI-first projects

Flexible working hours, office in Brno, home office possibilities

Long-term projects in a stable company

Attractive salary reflecting your experience

Benefits including extra vacation, sick days, pension contributions and lunch allowance

A small team that shares knowledge and enjoys discussing hard problems