Senior C++ Developer (Legacy)

SoftServe; Poland; On-site; PLN 120,000 - 160,000; Full time

Job summary

SoftServe is seeking an experienced C++ security engineer to contribute to a healthcare product. You will analyze security requirements, implement fixes, and address vulnerabilities in a large legacy C++ codebase, collaborating with developers and architects to ensure security, stability, and reliability.

The role involves code reviews, testing, debugging, and continuous integration, with a focus on memory- and threading-sensitive components and secure database access when applicable.

Qualifications

• Strong commercial experience with C++, including mature or legacy codebases.
• Strong knowledge of low-level programming, pointers and memory management, bounds checking and memory safety.
• Experience preventing or remediating buffer overflows, memory corruption, unsafe input handling, and similar vulnerabilities.
• Experience with threading/multithreading; product is largely single-threaded but contains threaded components.
• Good understanding of object-oriented programming concepts.
• Strong debugging and problem-solving skills.
• Proficiency in close collaboration with architects, QA engineers, security experts, and existing product developers.

Responsibilities

• Analyze assigned security requirements and security findings.
• Implement security-related changes in the healthcare product.
• Remediate vulnerabilities such as unsafe input and memory issues.
• Work with a large legacy C++ codebase focusing on memory-sensitive logic.
• Maintain and improve existing threading components.
• Identify technical impact and regression risks before modifications.
• Participate in code reviews, testing, debugging, and troubleshooting.
• Continuously integrate changes into the product and collaborate with the client’s developers and architects.

Skills

C++ expertise

Memory management

Multithreading

Debugging skills

OO programming

Security remediation

Architect collaboration

Tools

Qt

Job description

About The Role In this role, you will contribute to improving the security and reliability of a healthcare product by analyzing security requirements and addressing vulnerabilities within a large legacy C++ codebase. Working closely with the client’s developers and architects, you will implement security fixes, maintain memory- and threading-sensitive components, and assess technical and regression risks. You will also contribute to code reviews, testing, debugging, and continuous integration, helping ensure the product remains secure, stable, and reliable.

Responsibilities

• Analyze assigned security requirements and security findings
• Implement security-related changes in the healthcare product
• Remediate vulnerabilities such as unsafe input and length handling, buffer-overflow or memory-corruption risks, and SQL injection
• Work safely with a large legacy C++ codebase, including pointer-based and memory-sensitive logic
• Maintain and improve existing threading components
• Identify technical impact and regression risks before modifying existing functionality
• Participate in code reviews, testing, debugging, and troubleshooting
• Continuously integrate changes into the existing product and collaborate closely with the client’s developers and architects

Requirements

• Strong commercial experience with C++, including mature or legacy C++ codebases
• Strong knowledge of low-level programming, pointers and pointer arithmetic, manual memory management, bounds checking, and memory safety
• Experience preventing or remediating buffer overflows, memory corruption, unsafe input handling, and similar native-code vulnerabilities
• Experience with threading/multithreading; the product is mostly single-threaded but contains threaded components
• Good understanding of object-oriented programming concepts
• Strong debugging and problem-solving skills
• Proficiency in close collaboration with architects, QA engineers, security experts, and existing product developers
• Experience with Qt or similar desktop GUI frameworks is an advantage
• Experience with Windows / Windows Server-based desktop or on-premises products is an advantage
• Good SQL knowledge and understanding of secure database access; Oracle Database experience is an advantage
• Experience with ISAM or other legacy data-storage technologies is an advantage
• Experience with secure software development and remediation of documented security findings is strongly preferred

SoftServe is an equal opportunity employer. Qualified applicants will receive consideration regardless of race, color, ancestry, ethnicity, national origin, religion, sex, sexual orientation, gender identity or expression, age, citizenship, disability, health condition, marital or family status, veteran status, or any other characteristic protected by applicable law.