Senior Software Engineer

Job summary

This position is for the SSL Store, powered by DigiCert

We are hiring a Senior Software Engineer to build and run the platform behind our certificate management, TLS and vulnerability monitoring, uptime, and security products. The platform is a TypeScript monorepo: Fastify and Express services, Next.js and React frontends, MySQL and Redis, queues and workers on AWS, deployed to Kubernetes through Terraform, Helm, and Azure DevOps pipelines. It also carries a legacy .NET estate that we are steadily retiring, and a growing set of AI-assisted features and internal tooling.

You will own features end to end, from schema and API through UI, pipeline, and production. We work in a small team with a lot of surface area, so the job rewards engineers who pick up whatever the problem needs, whether that is a new framework, a scanner's quirks, or a cloud primitive they have not touched before

What you will do

• Design, build, and ship features across the full stack: Fastify or Express APIs, Next.js and React frontends, MySQL schemas and migrations, SQS-driven workers, and the infrastructure that runs them.
• Own services in production: observability with Sentry and Grafana, on-call participation, incident root-causing, and the follow-through fixes.
• Build and evolve security and monitoring products that scan, probe, and score real customer infrastructure at scale, with correctness and performance budgets that matter.
• Maintain and incrementally retire legacy .NET and Python components, moving behavior into the TypeScript platform with parity verified rather than assumed.
• Extend CI/CD and infrastructure: Azure DevOps pipelines, Docker images, Helm charts, and Terraform for EKS, RDS, SQS, and related AWS services.
• Integrate third-party and partner APIs (certificate authorities, scanners, identity providers) and keep those integrations resilient.
• Use AI-assisted development tools as part of daily work, and build AI-backed features where they genuinely improve the product.
• Review code, write tests, and raise the bar on standards that apply to human and AI-generated code alike.
• Mentor other engineers and write up decisions so others can act on them without you in the room.

What you will have

• 6+ years building and operating production web services and the frontends on top of them.
• Strong TypeScript and Node.js, including a modern API framework (Fastify preferred, Express acceptable) and a React framework (Next.js preferred).
• Production experience in more than one language or ecosystem, and at least one stack change you drove or adapted to in the last few years. Depth in a single language is not enough for this role.
• Solid relational database skills on MySQL or Postgres: schema design, migrations, indexing, query performance, and transaction and locking behavior.
• Comfort owning what you ship: logging, metrics, alerting, and calm, evidence-led debugging in production.
• Security awareness as a habit: authentication and authorization flows, secrets handling, input validation, and dependency hygiene.
• Clear written communication. You can explain a design, a trade-off, or an incident to engineers and non-engineers.

Nice to have

• Hands-on AWS (compute, queues, storage, secrets) and the ability to read and change Terraform.
• Containers and Kubernetes at a working level: writing a Dockerfile, reading a Helm chart, debugging a failing pod.
• CI/CD pipeline work in Azure DevOps or similar, plus Cloudflare or AWS WAF experience.
• Grafana, Sentry, or equivalent observability tooling beyond basic dashboards.
• Experience with PKI, TLS, or certificate lifecycle management, or with monitoring and scanning products (uptime, vulnerability, DNS or email security).
• OAuth 2.0 and OpenID Connect implementation experience, especially multi-tenant identity providers.
• C# and .NET, enough to read, maintain, and migrate legacy services without making them your home.
• Python for data pipelines, scanners, or tooling.
• Large-scale scanning or crawling systems: fleets of workers, rate limits, timeouts, and the cost math behind them.
• Building with LLM APIs, MCP servers, or agentic workflows in a product context.

Benefits

• Competitive compensation and comprehensive health, dental, and vision coverage
• Retirement savings programs with company matching (401(k) or RRSP)
• Generous paid time off, including holidays, and vacation
• Paid parental leave and family support benefits
• Life and disability coverage
• Flexible spending and health savings options (where applicable)
• Health and wellness support, including gym reimbursement and wellness programs
• Employee Assistance Program with 24/7confidential support for employees and families
• Education assistance and professional development opportunities
• Access to LinkedIn Learning and continuous learning resources
• Employee referral bonus program and additional company perks and discounts
• Internal rewards and recognition platform (Motivosity) to celebrate and acknowledge project wins, milestone achievements, and the outstanding contributions of our colleagues
• Business travel insurance and global employee support programs

To protect candidate information and maintain a secure hiring process, all applications must be submitted through our careers portal. Resumes or CVs sent directly via email will not be reviewed or considered.

DigiCert is an Equal Opportunity employer and is committed to diversity in its workforce. In compliance with applicable federal and state laws, DigiCert prohibits discrimination on the basis of race or ethnicity, religion, color, national origin, sex, age, sexual orientation, gender identity/expression, veteran’s status, status as a qualified person with a disability, or genetic information. Individuals from historically underrepresented groups, such as minorities, women, qualified person with disabilities, and protected veterans are strongly encouraged to apply.

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