Senior Full-Stack Software Engineer

Sectigo is the most innovative provider of certificate lifecycle management (CLM), delivering solutions that help the world’s largest brands simplify how digital trust is managed and scaled. Sectigo’s automated, cloud-native CLM platform issues and manages digital certificates across enterprise environments, enabling organizations to reduce complexity, accelerate time to value, and strengthen security across environments. Sectigo is one of the largest, longest-standing, and most reputable CAs with more than 700,000 customers, including 65% of the Fortune 500. Sectigo holds six combined active leadership seats in the CA/Browser Forum and ETSI and brings two decades of delivering unparalleled digital trust. Simplicity at Scale. How we show up with each other and our customers every day is just as important, and we win as #OneSectigo by living out our core values - Support, Excellence, Communication, Teamwork, Integrity, Growth and Openness. We are committed to investing in our diverse teams where everyone understands their role and how they support our strategic goals, we drive operational excellence through scale and efficiency, and we strive to delight our customers and become the market leader in our industry. If you aspire to join a driven team that holds each other accountable to meeting our lofty goals and you’d like to be part of our growth story in delivering a market leading user experience, we’d like to talk to you. We are looking for a talented Senior Full Stack Engineer to join our growing global team at Sectigo. We are hiring a backend-leaning Senior Full-Stack Software Engineer to help build, test, and operate a modern SaaS platform spanning Perl, Go, and TypeScript/Vue services. The platform is evolving from legacy Perl systems into better-bounded services, and we are looking for engineers who value disciplined modernization over unnecessary rewrites.  You will contribute across backend services, APIs, frontend applications, testing, CI/CD pipelines, observability, and deployment workflows. The environment emphasizes strong engineering practices, operational ownership, and thoughtful architectural decision-making.  Here are the core functions, responsibilities, and expectations for this role:  End-to-End Feature Development Design, implement, test, and deploy features across backend, frontend, APIs, and database layers.  Contribute to schema migrations, CI/CD improvements, and operational tooling.  Maintain production reliability and participate in troubleshooting and optimization.  Additional tasks associated with this position may be assigned in response to company initiatives and business needs. Modernization & Service Decomposition Extract legacy Perl functionality into better-bounded services using strangler-fig patterns.  Build API-first integrations and contract-tested boundaries.  Apply pragmatic service decomposition without overengineering.  Engineering Excellence  Test-Driven Development (TDD)  SOLID principles  Hexagonal architecture  Feature flags and continuous refactoring  Observability-first development  Security-by-default practices  Small, maintainable pull requests  More information about this role: This is a full-time and in-office position, reporting to our Chennai office 5 days a week. The targeted compensation package for this role is between INR 20 LPA and 22 LPA, subject upon internal equity and years of experience.  We may make further adjustments through an approval process if the targeted compensation range needs to be modified based on business needs and market trends. Education: Bachelor’s degree in computer science, Engineering, Mathematics or equivalent experience is strongly preferred.  Experience: A minimum of 10 years of relevant technical developer experience in corporate and/or commercial settings.  Candidates should be strong in at least three of the following and able to become productive in others quickly:  Java / Python / Perl / PSGI / Starman  Go / Echo  MySQL & relational database design  Redis / Memcached  RabbitMQ  OpenAPI / REST APIs  Linux / Bash  Docker / Docker Compose  TypeScript / Vue  Expected Testing Practices  Perl: prove, Test::More, integration and request-level tests  Go: go test, table-driven tests, httptest, race detection  Frontend: TypeScript component and integration testing, Vitest  E2E: Playwright and API smoke testing  Contract & DB: OpenAPI contract tests and Liquibase migration checks  Quality Expectations Every PR includes tests proving the change.  Mutation score is prioritized over raw coverage.  Flaky tests are fixed immediately.  CI pipelines are treated as production-critical systems.  Required DevOps Skills  Docker and containerized workflows  GitHub Actions CI/CD  GHCR deployments  Traefik routing and reverse proxy configuration  Liquibase migrations  Structured logging and metrics  Profiling and debugging across runtimes  Secret management and secure configuration handling  Strong understanding of Strangler-fig migrations  Anti-corruption layers  OpenAPI-first design  Event-driven integration with RabbitMQ  Idempotency, retries, and timeout handling  Expand / migrate / contract database strategies  Ideal Candidate Profiles, Talents, and Desired Qualifications: Mutation testing experience  Contract testing frameworks  Kubernetes / Kustomize  Open Telemetry, Prometheus, Grafana  Cross-runtime profiling  WordPress plugin development  Experience extracting monolith services into production safely  Prior authorship of skill packs or AGENTS.md workflows  Sectigo is an Equal Opportunity Employer. At Sectigo, we are committed to providing equal opportunities throughout your career. We hire and promote the most qualified individuals based on their skills, experience, job requirements, and business needs. We do not discriminate on the basis of race, color, religion, age, sex, national origin, disability, pregnancy, gene