Senior Software Engineer, Scanning Engine

Coalition is looking for a Senior Software Engineer to work on their scanning engine, designing and implementing high-quality services in Python and Go, and improving performance, scalability, and reliability of the scanning engine.

Requirements

• Strong experience as a Senior Software Engineer (or equivalent) working on backend or systems-level services.
• Proficiency in at least one of Python or Go, with the ability and willingness to work in both languages over time.
• Demonstrated experience with systems design for distributed or high-availability services, including clear understanding of scalability, reliability, and observability.
• Hands-on experience building or maintaining scanning, detection, or similar engine-like systems.
• Strong software engineering fundamentals: data structures, algorithms, concurrency, and performance optimization.
• Experience working in a cloud-native environment (e.g., microservices, containers, CI/CD, monitoring, logging).
• Ability to collaborate effectively across teams, including product, security, and platform/infra, and communicate tradeoffs clearly to technical and non-technical stakeholders.
• Proven track record of owning projects end-to-end, from problem definition and design through implementation, rollout, and iteration.
• Comfort operating in a fast-paced, evolving environment, making pragmatic technical decisions while maintaining quality and security.
• Experience with code quality practices (testing, static analysis, code reviews) and building maintainable systems.

Benefits

• 100% medical, dental and vision coverage
• Flexible PTO policy
• Annual home office stipend and WeWork access
• Mental & physical health wellness programs (One Medical, Headspace, Wellhub, and more)!
• Competitive compensation and opportunity for advancement