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Senior Java Developer
  • mazowieckie
Senior Java Developer
mazowieckie, mazowieckie, Polska
HAYS POLAND Sp. z o.o.
26. 6. 2025
Informacje o stanowisku

The client is a Swiss financial market infrastructure operator

Basic information: 
Location: hybrid, 1-3 days from office, Warsaw
Rate: up to 160PLN/h net + VAT (client will consider higher rates)
Job type: B2B contract 
Length: 6 months. + extensions
Recruitment process: 1 stage 
English: B2+/C1
Luxmed, MultiSport,

Profile:
- Proven experience in developing high-performance Java applications:
o Over 10 years of experience in developing low-latency multi-threaded Java applications (Java 8+, Spring Boot)
- Nice to have: experience with Angular or modern front-end frameworks
o Advanced database and performance optimization skills
- Familiarity with SQL, Hibernate and database optimization to support high throughput financial transactions
- Ability to design scalable, resilient data solutions for post-trade environments
o Familiarity with financial markets and messaging protocols
- Experience with event-driven architectures, messaging systems and systems integration.
- Strong analytical and problem-solving skills in complex mission-critical systems

Stock Exchange team member will play a key role in the development of the client's product backend. Tasks:
- Design and develop high-performance Java-based backend solutions for post-trade processing, ensuring seamless integration with primary and secondary market trading systems
- Ensure compliance with regulatory standards and internal security policies, maintaining system resiliency and operational reliability
- Translate business requirements into scalable, best-in-class solutions in accordance with Java development best practices and financial market regulations
- Collaborate in an agile, cross-functional team consisting of developers, testers, POs and business stakeholders, using frameworks such as SCRUM and SAFe
- Develop and maintain critical financial systems used by leading global financial institutions, contributing to the development of transaction processing infrastructure


The client is a Swiss financial markets infrastructure operator that acquired a controlling stake in Bolsas y Mercados Españoles (BME), the operator of Spain's stock exchanges, in June 2020. With this acquisition, it became the owner of 100% of BME's share capital.
The client operates the infrastructure underpinning the Swiss financial sector and offers a comprehensive range of services worldwide in securities trading and clearing, financial information

Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

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