Senior Software Engineer, Scanning Engine

Responsibilities

• Own end-to-end systems design for key components of the scanning engine, from initial design through implementation, deployment, and ongoing iteration


• Design and implement high-quality services in Python and Go that power our scanning workflows, ensuring code is maintainable, well-tested, and observable.


• Improve performance, scalability, and reliability of the scanning engine, optimizing for large-scale, distributed scanning workloads and strict SLAs.


• Partner with security, product, and data teams to translate detection and scanning requirements into robust, production-ready systems and APIs.


• Drive technical excellence and standards in the scanning engine codebase, including code review rigor, design documentation, and best practices for secure coding.


• Contribute to architecture and roadmap decisions for the scanning platform, evaluating tradeoffs and proposing solutions that balance speed, quality, and risk.


• Diagnose and resolve complex production issues related to scanning performance, accuracy, and stability, collaborating with SRE/Infra teams where needed.


• Mentor and support other engineers on the team through design feedback, pairing, and knowledge sharing around systems design and scanning domain concepts.

Skills and Qualifications

• 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 (e.g., vulnerability scanning, security scanning, data processing pipelines, or similar high-throughput engines).


• TODO: Clarify how strict security/scanning background is vs. openness to adjacent domains (data pipelines, compilers, search, etc.).


• 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).


• TODO: Confirm primary cloud provider(s) and any required tools (Kubernetes, Docker, etc.).


• 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.

Bonus Points

• Cyber security domain knowledge in scanning through endpoints.

Compensation

Our compensation reflects the cost of labor across several US geographic markets. The US base salary for this position ranges from $136,900/year in our lowest geographic market up to $201,737/year in our highest geographic market. Consistent with applicable laws, an employee's pay within this range is based on a number of factors, which include but are not limited to relevant education, skills, job-related knowledge, qualifications, work experience, credentials, and/or geographic location. Your recruiter can share more on target salary for your location during the interview process. Coalition, Inc. reserves the right to modify this range as needed.

Perks

• 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