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Oferta pracy: Praca programista

Senior Backend Java Developer

Warszawa, 2026-02-07 11:18 28000 - 35000 PLN

B2B / Kontrakt

Senior

Our client is an innovative technology company with offices in the USA and Poland, specializing in the development of advanced software solutions. Not acting as a broker or dealing with client fund transactions, it focuses on delivering solutions that enhance efficiency and growth in the financial market. Its offerings include social trading applications, proprietary trading software, and hosting and support for MT4/MT5 servers, mainly targeting corporate clients. The company values innovation, technological excellence, and building lasting relationships with clients. It seeks talents that will contribute to further development and implementation of modern solutions in the global financial market.

Tech stack:

Elasticsearch

GRPC

PostgreSQL

Cassandra

Kafka

Java

Responsibilites:

development of a system responsible for collecting and transmitting market data in real-time,
planning technical work and participating in architectural decisions,
monitoring application performance and code profiling, optimization for microseconds,
identifying and eliminating performance bottlenecks at the code, JVM, and network levels,
integration with data providers and creating custom solutions for data retrieval and processing,
team support: code review, knowledge sharing,
close collaboration with Quant and Trading teams to understand, analyze, and implement trading algorithms.

Requirements:

minimum 5 years of experience in Java programming,
very good knowledge of Java language and multithreading concepts,
familiarity with Kafka, gRPC, REST, WebSockets, PostgreSQL, Cassandra, Elasticsearch
higher education (preferably in computer science or related fields),
communication skills and ability to effectively collaborate with a team,
fluent in spoken and written Polish,
communicative knowledge of English language
ability to quickly learn new technologies and willingness to share knowledge with the team,
knowledge and practical application of Clean Code principles,
ability for analytical thinking and solving complex problems.

We offer:

Attractive salary
Sports package
Medical package
Opportunity to work on interesting projects

Benefity:

Płatny urlop na umowie B2B Pakiet medyczny Pakiet sportowy Budżet szkoleniowy

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