OverviewIn this role you help build Aeron Sequencer, a distributed, replicated-state-machine platform for capital markets.
You will work with cross-functional teams to design and optimize systems that other engineers rely on for performance and reliability.
You'll influence product decisions, architecture, and engineering practices while delivering clean, maintainable Java code.
This is a hands-on role focused on solving hard problems at scale and communicating technical choices clearly.
You will operate at the intersection of technology, performance, and financial markets, making a meaningful impact on how we deliver value.
Compensaciones / Beneficios25 days vacation
Pension plan
Private Health Insurance
Ticket restaurant
Childcare/Commuting benefits
Wellbeing allowance
ResponsabilidadesAnalyse, design and implement distributed systems based on replicated state machines
Develop clean, efficient Java code with self-documenting characteristics
Design and evolve messaging protocols and libraries
Troubleshoot and debug Java applications and distributed systems
Apply testing, benchmarking, measurement, and profiling to improve correctness and performance
Participate in code reviews, pairing, and technical discussions to improve quality




Contribute to product decisions beyond task execution
Stay updated with relevant software engineering technologies and practices
Communicate technical decisions and priorities to both technical and non-technical stakeholders
Requisitos principalesExperience building, debugging, and operating distributed systems
Strong experience developing server-side Java
Experience designing/revising messaging protocols or libraries
Experience using different forms of testing to support quality (correctness and performance)
Experience measuring, benchmarking, and profiling components or systems
Strong written and verbal communication skills
Collaborative mindset with willingness to share knowledge and learn from others
Judgement to prioritise competing demands based on long-term value and explain priorities to stakeholders
Confidence to challenge the status quo and propose improvements
Strong written and verbal communication
Collaborative and knowledge-sharing
Prioritisation and stakeholder communication
Java server-side development
Distributed systems design and operation
Messaging protocols or software libraries design

📌 Senior Java Distributed Systems Engineer (España)
🏢 Adaptive Financial Consulting
📍 España