Senior Software Engineer, Scanning Engine

About us

Coalition is the world's first Active Insurance provider designed to help prevent digital risk before it strikes. Founded in 2017, Coalition combines comprehensive insurance coverage and innovative cybersecurity tools to help businesses manage and mitigate potential cyberattacks.

Opportunities to make an impact with bold thinking are real—and happening daily at Coalition.

About the role

We are looking for a Senior Software Engineer to provide technical leadership on Coalition’s Scanning Engine & Data Collection team. This team is responsible for the distributed systems that continuously scan the internet and our customers’ environments to collect the security data that powers our cyber insurance underwriting and our attack surface management product, Coalition Control.

In this role, you will design, build, and operate large-scale cloud services that run internet-wide and customer-specific scans, ingest and normalize third-party threat intelligence, and surface high-quality findings into our underwriting, risk, and security workflows. You’ll work closely with other senior engineers, security, product, and data teams to evolve the architecture of our scanning platform, improve its performance and reliability, and help mentor engineers across a distributed team spanning the US, Canada, and EU.

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).
• 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.

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 $150,000/year in our lowest geographic market up to $215,000/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

Why Coalition?

Work at Coalition is centered on the joint mission to Protect the Unprotected. We have built a remote-first, highly inclusive culture that welcomes people from diverse backgrounds. We trust each other to take responsibility, share ownership of outcomes, and put in the work together to protect businesses from digital risk. Coalition’s exceptional growth stems from its ability to address real-world problems for organizations of all sizes while remaining true to our founding values of character, humility, responsibility, purpose, authenticity, and inclusion.

We’re always looking for collaborative, inquisitive individuals to join #OurCoalition.

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Safe Hiring Notice

All legitimate communication from Coalition comes from @coalitioninc.com emails, and open roles are listed only on our Careers page. We never ask for payment, banking details, or personal identification before an offer is accepted through our secure systems. If you believe you’ve been a victim of fraudulent recruiting, follow guidance from the Federal Trade Commission (FTC).

Anti-Discrimination Notice

Coalition is proud to be an Equal Opportunity employer. Our policy is to provide equal employment opportunities to all individuals, without discrimination or harassment on the basis of any characteristic protected by applicable laws in each country where we operate. This commitment includes, but is not limited to, ensuring equal treatment in recruitment, selection, training, promotion, transfer, compensation, and all other aspects of employment. Coalition does not tolerate discrimination or harassment of any kind, and we are dedicated to fostering an inclusive and supportive workplace.

Accommodations

Coalition is committed to providing reasonable accommodations to qualified individuals with disabilities, including applicants and employees, in accordance with applicable laws and regulations in each country where we operate. Our policy is to support equal opportunity in the hiring process by considering qualified applicants regardless of disability or other protected characteristics, unless providing accommodation would impose an undue hardship or disproportionate burden. If you require accommodation to complete an application, interview, pre-employment testing, or participate in the selection process, please contact us at View email address on aiapply.co. We also consider all qualified applicants, including those with criminal histories, in line with applicable laws and regulations in each jurisdiction.

To all recruitment agencies: Coalition does not accept unsolicited agency resumes. Do not forward resumes to our email alias, employees, or other physical or virtual organization locations. Coalition is not responsible for any fees related to unsolicited resumes.