Senior Software Engineer, Developer Experience
About the role
We're looking for a Senior Software Engineer to help build and evolve our internal developer platform—everything from CI/CD and release automation to observability standards, platform tooling, and developer workflows that remove friction.
This role is for someone who loves making other engineers faster: reducing build times, eliminating flaky tests, creating paved roads for service creation/deployment, and raising the bar on operability by default.
What You'll Do
Developer productivity & platform tooling
- Identify workflow bottlenecks (build/s/release/local dev) and build tools that measurably reduce toil.
- Create and maintain “golden paths” like service templates, CLIs, libraries, and automation that teams rely on.
CI/CD & release engineering
- Design reusable CI pipelines and deployment workflows that are fast, safe, and easy to adopt across teams.
- Improve reliability of builds and tests (flake reduction, hermeticity, caching) and drive down cycle time.
- Support progressive delivery patterns (canary / blue-green) and safe rollback mechanisms.
Observability & operational excellence
- Establish shared observability primitives (metrics/logs/traces), standards, and libraries so services are production-ready by default.
- Partner with product engineers to improve operability: SLOs, alerting hygiene, dashboards, incident learnings.
Infrastructure foundations
- Build and improve core platform capabilities that make it easy to run and scale services.
- Own the systems you build end-to-end and help keep them healthy in production, improving reliability over time.
Your background
4+ years building production software, with meaningful experience in platform / devtools / infrastructure (or adjacent SRE/release engineering).
Strong coding ability in at least one systems/productivity language (e.g., Python, TypeScript/JS), and comfort building developer-facing tooling (CLIs, libraries, automation).
Hands-on experience with CI/CD systems and designing pipelines that are scalable and reusable across many repos/services.
Practical experience with observability in production systems (instrumentation, alerting, dashboards, incident response).
Comfort with containers and modern cloud infrastructure (e.g., Docker/Kubernetes and related tooling).
A track record of improving developer experience through measurable outcomes (faster builds, fewer flakes, safer deploys, fewer incidents).
Strong cross-team collaboration and communication—especially writing clear docs and driving adoption.
Even better if you have:
Experience with monorepos and build systems and/or large-scale CI performance work.
Experience building internal platforms: service templates, paved-road deployment, self-serve environments, developer portals.
Infrastructure-as-code experience (e.g., Terraform) and a security-minded approach to supply chain (provenance, secrets, least privilege).
Experience applying AI-assisted tooling to make engineers dramatically more effective.
Compensation
$200K – $400K + Offers Equity
This range reflects the expected compensation for this role. Compensation within the range is determined based on experience, skills, and the scope of responsibilities, with flexibility for candidates who demonstrate exceptional impact.
In addition to base salary, we offer competitive equity.
Final compensation may vary based on location within the United States.
Benefits
We proudly offer the following benefits for our full-time employees:
Take what you need vacation policy (subject to local requirements; UK employees receive 25 days of statutory leave)
Medical, Dental, and Vision benefits for you and your family
Life Insurance and Disability Benefits
Retail Plan (e.g., 401K, pension)
Parental Leave
Fertility and family building benefits through Carrot
Daily lunches and snacks in the office to keep you at your best
These benefits are described in more detail in Decagon’s policies, may vary by location, and can change at any time according to applicable compensation and benefits plans.