Lyric - Senior Software Engineer - .Net/C#

ESSENTIAL JOB RESPONSIBILITIES & KEY PERFORMANCE OUTCOMES :

Ship modernization work at a pace that surprises people :

This is your superpower. You will :

- Use AI agents (Cursor, Claude Code, Codex) to blow through framework upgrades, refactors, API extraction, test scaffolding, and documentation - while catching hallucinations and preventing regressions before they hit a PR.

- Build reusable playbooks the team can actually follow : prompt templates, repo-level agent instructions, migration checklists, review heuristics, and clear "definition of done" standards for AI-assisted changes.

What success looks like :

- You measurably move the needle - more modules migrated per sprint, faster PR turnarounds - without a spike in production bugs.

- The team gets better because of you : PRs are clearer, test coverage grows, documentation stays current, and the same mistakes stop repeating.

Modernize a real .NET + SQL Server stack into something you would be proud of :

You will :

- Upgrade legacy services to current .NET (LTS where it makes sense), untangling architecture boundaries and fixing the performance issues that have been "known" for years.

- Push toward a proper API-layer architecture - RESTful, versioned - built for correctness and maintainability, not just "it works."

- Get your hands dirty with SQL Server : query performance, indexing, transactional correctness. If there are data pipeline needs (Kafka, etc.), you will help build those too.

What success looks like :

- Legacy surface area shrinks sprint over sprint. Critical paths live in modern code. Fewer "oh, that is still in the old system" conversations.

- APIs get faster and more reliable. Database hot spots stop waking people up at night.

Own it like its yours - especially because this is healthcare :

You will :

- Build with security and privacy as defaults, not afterthoughts. Least privilege, safe data handling, the works. This is healthcare - getting it wrong is not an option.

- Put real quality guardrails in place : automated tests that actually catch things, CI that blocks bad changes, structured logging, observability that tells you what is happening before users do.

- Review code thoughtfully, have honest architectural conversations, and raise the bar without being a jerk about it.

What success looks like :

- Fewer severity-1 incidents. When something does go wrong, root cause takes hours, not days.

- Automated test coverage grows meaningfully on modernized code. The team stops relying on "just test it manually."

Work with real humans to ship things that matter :

You will :

- Partner with analysts, stakeholders, and other engineers to turn business problems into working software - not just technically correct software, but software that actually solves the problem.

- Help build delivery plans that are honest about trade-offs. "Right" vs. "right now" is a real tension - you will help the team navigate it with pragmatic milestones.

What success looks like :

- Delivery is predictable. Customer onboarding milestones are met. Features ship with confidence, not crossed fingers.

REQUIRED SKILLS & EXPERIENCE :

- 5+ years building and shipping production systems. Not side projects - real software with real users. Solving skills; able to work independently and collaboratively in fast-moving teams.

- Some C# and modern .NET experience (Core and beyond). Especially in large codebases and you have done meaningful refactoring and migration work, not just greenfield.

- Strong SQL Server chops - schema design, query tuning, performance troubleshooting. You have worked on data-heavy applications where the database was not an afterthought.

- Cloud experience with Azure and/or AWS. Azure is particularly relevant here.

- API design experience - you have built and maintained service-oriented architectures with real versioning, auth, reliability, and testing practices.

- You actually use AI coding tools as a daily driver. Cursor, Claude Code, Codex, or similar - and not just for autocomplete. You have used agents for multi-file refactors, migrations, test generation, and review workflows. You have opinions about what works and what does not.

- You communicate clearly. Good PR descriptions, straightforward design docs, pragmatic collaboration, low ego. We do not need a rockstar - we need someone the team trusts.

PREFERRED QUALIFICATIONS :

- You have actually done a legacy ASP.NET / .NET Framework modernization before. You know where the bodies are buried and you have the scars to prove it. Bonus points for Azure modernization patterns.

- Experience with distributed systems tooling - Kafka, event-driven architectures, or working with Postgres alongside SQL Server.

- Front-end experience with Angular and/or React/Next.js.

- You have helped establish agent-friendly engineering practices : writing repo instructions that AI tools can follow, breaking work into agent-sized tasks, setting up CI guardrails for AI-generated code, feature flags, canary deployments - any part of the progressive delivery toolkit.

- Background in regulated domains (healthcare, fintech, payments) where "move fast and break things" will get you fired.