This job is with Adaptive Financial Consulting Ltd, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. At Adaptive, we partner with capital, commodity and digital market participants, and we see technology as a true differentiator. Our experienced teams design and deliver complex front-office technology solutions, using our proven accelerators to create long-term competitive advantage.

Our clients include the world's leading investment banks, investment managers, fintechs and capital market service providers. With offices in London, New York, Barcelona, Montreal and Manila we have a proven track record of delivering trading technology that is powerful, elegant and intuitive. We are hiring a Senior Java Distributed Systems Engineer to help build Aeron Sequencer , our technology for applying state machine replication to capital markets.

You will work on distributed systems that enable other engineering teams to build performant, reliable software. This is a hands-on role with the opportunity to influence product decisions, architecture, engineering practices, and how we communicate our work. Confident in challenging the status quo and suggesting improvements, both technical and cultural.

Strong experience developing server-side software in Java.

Experience designing and evolving messaging protocols or software libraries.

Experience using different forms of testing to support software quality, including correctness and performance. Strong written and verbal communication skills. Write clean, efficient Java code that is maintainable and self-documenting.





Design and evolve messaging protocols and software libraries. Troubleshoot and debug Java applications and distributed systems. Drive improvements in correctness and performance through testing, benchmarking, measurement and profiling.

Raise the quality of our work through code reviews, pairing and technical discussions. Keep up to date with relevant software engineering technologies and practices. Interesting engineering problems. Work alongside passionate engineers on software where correctness, performance and usability all matter.

Adaptable working. We support a highly flexible, hybrid working model. Work-life balance matters to us, and we back it with wellbeing benefits and a focus on long-term performance. We aim to create a positive, collaborative environment and support our people and local communities through wellbeing, diversity and inclusion programmes.

With offices in London, New York, Barcelona, Montreal and Manila , Adaptive brings together a global team that shares one focus: building better financial technology.

Private Health

Insurance ~ Language classes (English and Spanish) So here you will have three stage interviews: 1- A chat with one of our great recruiters. 2- A zoom chat with one of our Java colleagues where they will ask you detailed questions about Java knowledge and your experience. 3- A Face to Face interview (either in our office or via Zoom). ​​You will also have a chat with our local director.

A little tip for you during those stages: Diversity and inclusion are key to a great workplace, and Adaptive is better when it’s more representative of the world around us.

📌 Senior Java Distributed Systems Engineer - Fintech - Barcelona
🏢 Adaptive Financial Consulting
📍 Barcelona