Senior Java Developer (Fintech)

TL;DR

Senior Java Developer (Java/Fintech): Developing high-load distributed systems for electronic trading platforms with an accent on performance optimization and multi-threading. Focus on migrating and refactoring legacy systems to modern architectures and ensuring low-latency system stability.

Location: Hybrid in Lisbon, Portugal

Company

Specialized IT consulting partner with 18 years of experience helping clients make right decisions in fast-moving markets.

What you will do

• Develop and optimize high-load distributed systems for electronic trading platforms.
• Lead technical teams in delivery environments using Agile methodologies.
• Execute migration and refactoring projects to update technology stacks and architectures.
• Implement expert-level Core Java solutions focusing on multi-threading and low-latency.
• Utilize C# within enterprise development environments.

Requirements

• At least 5 years of software development experience.
• 2+ years of experience in a leadership role.
• Expert knowledge of Core Java (SE), multi-threading, and performance optimization.
• Practical experience with C# in enterprise environments.
• Background in high-load distributed systems or electronic trading platforms.
• Strong academic background in Computer Science, Engineering, or Mathematics.

Nice to have

• Experience with Oracle Coherence.

Culture & Benefits

• Permanent full-time contract with health insurance.
• 26 days of paid time off (22 standard + 4 special days).
• Meal allowance via Coverflex.
• Annual training budget for professional growth.
• Referral bonuses and special flex discounts.
• Team-oriented culture in a dynamically growing international company.