Principal Software Architect (London)

Principal Software Architect
2 days ago Be among the first 25 applicantsGet AI-powered advice on this job and more exclusive features.PeopleCheck provides fast, accurate background-screening solutions for compliance-driven industries. As we scale up our platform, we need a seasoned architect to help us build a rock-solid, maintainable codebase and resilient infrastructure—ensuring excellent user experience, security, and rapid feature delivery.Role OverviewYou’ll be the senior architect driving PeopleCheck’s system-health, architecture, and scalability initiatives. Reporting to the CEO and collaborating closely with our tech lead, frontend engineer, and product manager, you''ll:Assess and evolve our current stack, delivering impactful improvements within your initial months.Utilize your previous architecture experience to guide design decisions and establish best practices.Key ResponsibilitiesAutomated Testing and ValidationDesign and implement comprehensive CI/CD pipelines ensuring thorough coverage and reliability on critical APIs.Architect a fully automated test suite (unit, integration, end-to-end) and mirror staging/production environments (e.g., Docker)Further enhance modularity and maintainability of our backend architecture following single-responsibility principles.Enhance or evolve our existing architecture with microservices best practices.System Health and MonitoringDefine robust error-handling patterns, integrating structured logging and alerting for swift root-cause analysis.Optimize and maintain infrastructure abstraction and scalability strategies for robust performance during peak loads.Security and ComplianceStrengthen and maintain industry-leading security standards around credential management and database access.Ensure secure coding and data protection best practices throughout our stack and infrastructure.Documentation and Knowledge SharingLead architecture/design reviews, write thorough runbooks, and collaborate with the team on SOLID/fp-based designRequired Experience and Skills5+ years
in backend/system architecture or senior engineering rolesHands-on expertise in designing and operating
scalable
,
high-availability
systemsDeep understanding of
system design
patterns: modularity, microservices, SRP (SOLID), functional decompositionProven track record of delivering
automated test suites
(unit, integration, end-to-end) and driving
90–100% coverage
on critical pathsComfortable with
Docker
, CI/CD tools (e.g., Jenkins, GitHub Actions, GitLab CI), and environment mirroringStrong experience with
Node.js
(or equivalent), RESTful APIs, and code structuringFamiliarity with cloud platforms (Linode/AWS/GCP) and infrastructure-as-code principlesExcellent communicator—able to present past case studies and guide stakeholdersPreferred QualificationsBackground in
compliance
or
background-screening
servicesExperience with
microservices
design and orchestration (Kubernetes, ECS)Knowledge of advanced
observability
tools (Datadog, New Relic, ELK)Why Join Us?Impact
: Help define the technical roadmap together with our tech lead of a mission-critical compliance platform.Ownership
: Lead key initiatives end-to-end with direct influence on architecture and product.Growth
: Work alongside senior tech experts and expand your skills.Culture
: Small, agile team—fast decision-making, collaborative environment, work/life balance.Apply Today
if you’re passionate about building resilient, scalable systems and eager to share your success stories with a driven, compliance-focused team in London.Job Type: Full-time, PermanentAdditional leaveCompany eventsCompany pensionCycle to work schemePrivate medical insuranceReferral programmeSick payWork from homeSchedule:Monday to FridayLanguage:Work Location: Hybrid remote in Richmond TW9 (London)Seniority level
Seniority level
Mid-Senior levelEmployment type
Employment type
Full-timeJob function
Job function
Engineering and Information TechnologyIndustries
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