Java jobs in Brazil

About the Company Ambush is a people first company where talented, thoughtful individuals come together to build meaningful products and lasting partnerships. We believe the best work happens when people feel supported, trusted and empowered to bring their full abilities to the table.

Since 2015, because of our people first and long term mindset, we have grown into a partner relied on by some of the best companies in the world. We combine strong engineering, design and strategy with a growing strength in AI to help our clients see what is next and achieve bigger outcomes.

At the heart of everything we do is our team. We collaborate, take risks, lift each other up and take pride in doing work the right way, not settling for a quick makeshift solution. If you join Ambush, you join a group of people who want you to succeed and who show up for each other every day.

We believe in and expect real teamwork, a constant drive to be better, and delivering meaningful long term outcomes that we can be proud of together.

We\'re looking for a Java developer with strong backend fundamentals and hands-on experience building scalable, reactive systems, ideally in payments or fintech environments.

This role focuses on building and maintaining a high-performance, reactive mid-tier service that powers seamless payment experiences for millions of users.

• Develop & Maintain : Design, code, and maintain scalable services within a distributed reactive architecture.
• Debug & Optimize : Troubleshoot production incidents and optimize JVM memory management and application throughput.
• Testing & Compliance : Ensure code quality through rigorous testing and adhere to strict PCI compliance security standards.
• Collaborate : Participate in code reviews, technical planning, and daily stand-ups in English.

• Core Concepts : Strong grasp of OOP, Design Patterns, and SOLID principles.
• Functional Programming : Proficiency with functional concepts (Lambdas, Streams, Optionals) and reactive programming models.
• Concurrency : Experience dealing with race conditions, deadlocks, and thread safety in a multi-threaded environment.
• API Development : Strong experience building and consuming RESTful APIs.