Senior Software Engineer

Prove

3h • Remote

About The Position

Prove is seeking a talented and experienced Senior Software Engineer to join its Engineering team, focusing on the core MFA (Multi-Factor Authentication) platform. This role involves designing, optimizing, and maintaining performance-critical, high-volume authentication and identity systems using C++. The engineer will contribute directly to critical infrastructure, architectural decisions, and cross-functional team solution delivery. Prove is a company that values self-starting professionals who thrive in a fast-paced environment, process information quickly, and make intelligent decisions. The work is challenging and requires natural curiosity and tenacity, with a strong emphasis on teamwork.

Requirements

• 5+ years of professional software development experience.
• Deep proficiency in C++ (C++20), including modern language features, memory management, and concurrency.
• Strong working knowledge of the Standard Template Library (STL) — containers, algorithms, iterators, and utilities.
• Solid understanding of software engineering fundamentals: data structures, algorithms, design patterns, and performance optimization.
• Experience designing, implementing, and optimizing large-scale distributed systems and high-throughput APIs.
• Proficient with Git for version control and collaborative development workflows.
• Comfortable working in a Linux environment, including shell scripting with Bash.
• Experience with CMake for build system configuration and management.
• Familiarity with vcpkg or similar package management tools for C++ dependencies.
• Experience with CI/CD pipelines and automated testing frameworks.
• Proven ability to debug complex issues, trace root causes, and deliver clean fixes.
• Experience identifying and resolving performance bottlenecks through profiling, benchmarking, and code optimization.
• Ability to work effectively within a team and communicate clearly with both technical and non-technical stakeholders.
• Strong habits around code documentation and writing clear technical process documentation.

Nice To Haves

• Java proficiency is strongly preferred.
• Experience with Boost libraries preferred.
• Familiarity with CI/CD pipelines and automated testing framework preferred.
• Strong passion for learning about our products and markets through in-house and external training.
• Experience in high-growth /pre-IPO Technology companies.

Responsibilities

• Design, develop, and deploy highly performant C++ solutions for the MFA platform, ensuring high availability and low-latency performance.
• Lead the technical implementation of critical 2026 initiatives, including the migration to a new Voice OTP vendor, the full integration of a secondary SMS provider, and migrating Lynx SMS/voice customers to the Linetype API.
• Enhance fraud prevention capabilities within the MFA platform through robust software engineering solutions.
• Write clean, efficient, well-tested, and maintainable C++ code, and conduct rigorous code reviews to maintain high coding standards.
• Own the delivery lifecycle of software features from initial concept through production deployment, partnering with Product and Operations teams.
• Identify and resolve performance bottlenecks in complex, high-throughput C++ systems through profiling, benchmarking, and optimization.
• Lead small projects, mentor mid-level and junior engineers, and drive technical excellence within the team.
• Promote, maintain and enhance our cultural values of humility, passion, inclusion, and leadership.

Benefits

• Competitive salaries & Bonus Plan (for eligible roles) and Equity Plan
• Modern Health for financial, mental, and physical wellness
• 401(k) Retirement Plan & Match (US Offices)
• Local Country Pension (International Offices)
• Unlimited Vacation and Flexible hours
• Comprehensive medical benefits for you and your family
• Emotional & Physical Wellness – Access to wellness services (EAP & Prove Well-Being Reimbursement)
• Bottomless snacks & beverages for certain office locations
• Daily GrubHub stipend for lunch if coming into the office (US Offices)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed