Senior Windows C++ Security Developer (Fintech)

TL;DR

Senior Windows C++ Security Developer (Fintech): Identifying, investigating, and resolving security vulnerabilities in Windows-native trading applications with an accent on low-level system components and high-performance architecture. Focus on performing root-cause investigations, contributing to security-focused redesigns, and ensuring system reliability within a large enterprise environment.

Location: Must be based in Poland, Portugal, Cyprus, or Spain. Relocation assistance available to Poland or Cyprus.

Company

A leading global electronic trading company developing large-scale enterprise platforms for clients in over 85 countries.

What you will do

• Identify, investigate, and resolve security vulnerabilities in Windows-native applications.
• Develop and maintain high-performance C++ applications using low-level system components.
• Analyze complex technical issues and perform root-cause investigations.
• Contribute to architectural improvements and security-focused redesign initiatives.
• Collaborate with multiple engineering teams and participate in code reviews.
• Work within GitLab CI/CD pipelines and modern development workflows.

Requirements

• Must be based in Poland, Portugal, Cyprus, or Spain.
• Willingness to work with minimum 5-hour overlap with New York business hours (12:00 p.m. – 8:00 p.m. CET).
• 7+ years of experience in C++ programming.
• Solid experience in low-level Windows platform development, native OS APIs, and event-driven architectures.
• Advanced debugging and troubleshooting skills for stack corruption, memory leaks, and concurrency issues.
• Strong understanding of systems programming, networking, and synchronization primitives.

Nice to have

• Finance background, particularly in Fixed Income.
• Experience with Python scripting.
• JavaScript knowledge.
• Good knowledge of communication protocols and network programming fundamentals.

Culture & Benefits

• Flexible work setup: remote or hybrid model.
• Health insurance coverage for employees in Poland and Cyprus, with 50% coverage for spouses and children.
• 24 days of paid vacation and 10 days of paid sick leave.
• 50% reimbursement for professional training, education, and conferences.
• Relocation package including flight tickets, accommodation assistance, and visa/residence permit support for Poland or Cyprus.
• Engaging teambuilding events and activities.