FinTech Java Developer: Low-Latency, FIX/ITCH

Adaptive; Barcelona; Híbrido; EUR 60.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid working model

Well-being benefits

Work-life balance initiatives

Collaborative team environment

Background check

Descripción de la vacante

Adaptive is a financial consulting firm delivering front-office tech solutions for capital markets, including messaging infrastructure and an open-source FIX engine. We design Java applications, require strong Core Java (17+), and emphasize clean code, testing, and collaborative development.

Join a highly flexible hybrid team focused on performance, reliability, and modern tooling. You will work with Java tech, participate in Agile processes, and contribute to scalable, low-latency financial

Formación

• Experience in Java server-side software development.
• Expertise in Java technologies.
• Core Java programming with Java 17+.
• Knowledge of dependency injection and IoC.
• Experience with messaging technologies.
• Familiarity with data structures like sets, hashes and caches.
• Understanding of concurrency, resiliency, caching, HTTP and REST.
• Knowledge of software development methodologies and practices.
• Experience with Agile methodologies (Scrum/Kanban).
• Experience with DevOps for deploying applications.
• Maintenance and bug-fixing experience.
• Strong written and verbal communication skills to explain technical concepts.
• Strong analytical and problem-solving skills.
• Exposure to financial protocols like FIX and ITCH.
• Nice-to-have: exposure to low-latency/high-performance systems and languages like C, C++, Go, Rust, or C#; Front Office systems; Gradle/GitHub Actions; AWS/Azure.

Responsabilidades

• Design and develop Java applications and libraries.
• Write clean, efficient, well-documented code.
• Troubleshoot and debug Java apps for performance.
• Conduct unit testing for quality and stability.
• Participate in code reviews for maintainability and reusability.
• Stay updated with Java and industry trends.
• Participate in Agile development and best practices.
• Pair with teammates to ensure high-quality outcomes.

Conocimientos

Java server-side development

Java technologies

Core Java 17

Dependency injection/IoC

Messaging technologies

Data structures (sets, hashes, caches)

Concurrency, resiliency, caching, HTTP

SDLC best practices

Agile — Scrum/Kanban

DevOps deployment

Maintenance and enhancements

Strong communication

Analytical/problem-solving

FIX and ITCH protocols

Low-latency / high-performance systems

C, C++, Go, Rust, or C# (nice-to-have)

Front Office financial systems (OMS/EM

Herramientas

Gradle

GitHub Actions

AWS

Azure

Descripción del empleo

Adaptive is a financial consulting firm delivering front-office tech solutions for capital markets, including messaging infrastructure and an open-source FIX engine. We design Java applications, require strong Core Java (17+), and emphasize clean code, testing, and collaborative development.

Join a highly flexible hybrid team focused on performance, reliability, and modern tooling. You will work with Java tech, participate in Agile processes, and contribute to scalable, low-latency financial