WKL Consultancy - SF | Senior Java Developer | Purmerend | FX / Trading | 110k

Developer is needed in Purmerend, Netherlands.

Client: WKL Consultancy

Location: Purmerend, NH, nl

Contract: Contract

Job Description

We are looking for a Senior Java Developer who wants to play a key role in further building and optimizing a high-performance trading platform within an FX environment. In this role, you will work on systems where performance, reliability, and low latency are central. You will directly contribute to the development of both a market data distribution component and an algo trading engine that are heavily used within our trading activities. This is not a standard backend role. You will work on complex, real-time systems where every millisecond counts. You will have the opportunity not only to develop but also to contribute to architecture, scalability, and technical strategy. Together with the technical lead, you will act as an important sparring partner and be involved in solving complex challenges and making technical decisions.

Requirements

Your profile should include the following hard skills (minimum required):

• At least 7 years of experience in similar software development roles;
• Expert knowledge of Java JDK 21 or higher;
• Experience with CI/CD;
• Experience with unit and integration testing;
• Familiar with large, complex distributed systems;
• Experience within the FX industry or trading environment is a strong plus;
• Experience with financial systems and the FIX protocol;
• Knowledge of Java high speed network programming and related libraries;
• Knowledge of low latency programming (e.g., garbage collection tuning, memory management);
• Knowledge of Linux operating systems and configuration focused on network throughput and low latency;
• You speak fluent English, Dutch at a minimum B1/B2 level is required.

Additional Information

Language and team culture: Our client is primarily Dutch speaking, which makes communication within the team an important part of the role. We find it important that you feel at home within the team, also during informal moments such as lunch, coffee breaks, and company activities. You are welcome to respond in English, but we are looking for someone who is open to communication and not hesitant to participate, even if their Dutch is not yet perfect.

What do we offer?

• Salary: €91k incl 8% holiday allowance;
• Bonus: minimum of 2 months, with a maximum depending on performance;
• Lease car possible;
• Company mobile phone;
• Pension scheme;
• Contract: Initially 6 or 12 months with the prospect of a permanent contract;
• Working in a small, close-knit team with short lines and a pragmatic approach;
• Room for your own input, technical growth, and impact on the product;
• Minimum of 3 days per week in the office in Purmerend, 2 days working from home;

About Us

We are a specialized player within the FX trading industry and develop our technology fully in-house. Our platform is modular, scalable, and designed for maximum performance and reliability. We believe in ownership, pragmatism, and technical quality. With us, you don’t just build software; you work on systems that have a direct impact on trading and performance.

Interested? APPLY now!