[Remote] Senior Software Engineer, Full Stack

Note: The job is a remote job and is open to candidates in USA. Lyric is a healthcare decision intelligence company focused on improving payment integrity through responsible AI and clinical, payment, regulatory, and policy expertise. The Senior Software Engineer will lead front-end modernization, build full-stack features across React, .NET, and PostgreSQL, use AI coding tools to accelerate engineering work, and uphold security, quality, and accessibility standards. The role also partners with product, UX, DevOps, analysts, and stakeholders to deliver reliable software for healthcare workflows.

Responsibilities

• Design and build React applications that are modular, testable, and accessible by default - with a real point of view on component architecture, state management, routing, and shared libraries
• Own the experience layer end to end: design system contributions, responsive layouts, accessibility (WCAG), client-side performance, error and loading states, and the small details that separate a workflow people tolerate from one they trust
• Partner with UX on flows that hold up under real customer workloads - dense tables, long-running operations, complex permissioning - not just happy-path mockups
• Shape and extend the .NET APIs your front end consumes - RESTful, versioned, and built for correctness and maintainability, not just "it works."
• Make pragmatic backend changes: adding endpoints, refactoring service boundaries, tightening contracts, and replacing legacy .NET code where it's blocking the experience you're trying to ship
• Get your hands into SQL when the UI demands it - query performance, indexing, transactional correctness - and contribute to data pipelines (Kafka, event-driven flows) when the work calls for it
• Use AI agents (Cursor, Claude Code, Codex) to power through component migrations, framework upgrades, 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 - on both the front-end and backend sides of the codebase
• Build with security and privacy as defaults, not afterthoughts - both on the client (safe data handling, careful state, sensible telemetry) and on the server (least privilege, auditability). This is healthcare. Getting it wrong isn't an option
• Put real quality guardrails in place: component and integration tests, end-to-end coverage on the flows that matter, CI that blocks bad changes, structured logging, and front-end observability that tells you what users actually experience before they tell you
• Review code thoughtfully, have honest architectural conversations, and raise the bar without being a jerk about it
• Partner with analysts, stakeholders, designers, 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'll help the team navigate it with pragmatic milestones

Skills

• Applicants must already be legally authorized to work in the U.S
• 5+ years building and shipping production systems. Not side projects - real software with real users. You're able to work independently and collaboratively in fast-moving teams
• Deep front-end experience with React/Next.js (or comparable depth in Angular with a willingness to lead in React). You've built and maintained non-trivial applications: component architecture, state management, routing, forms, accessibility, and performance. You've worked at the scale where shared libraries and design systems become real problems - not slides
• Strong fundamentals across the modern web platform: TypeScript, HTML, CSS, browser performance, accessibility, testing (unit, component, end-to-end), and the build/release tooling that goes with it
• Solid working experience with C# and modern .NET (Core and beyond). You don't need to be the deepest backend engineer in the room, but you can confidently read, extend, and refactor service code - and you've done meaningful work in real codebases, not just greenfield
• Comfortable with SQL - enough to design reasonable schemas, write and tune the queries your UI depends on, and recognize when a performance problem belongs at the database, not the client
• API design experience - you've built and consumed service-oriented APIs with real versioning, auth, reliability, and testing practices, and you have opinions about what makes a backend pleasant (or painful) to integrate with from a front end
• Cloud experience with AWS and/or Azure. AWS is particularly relevant here
• You actually use AI coding tools as a daily driver. Cursor, Claude Code, Codex, or similar - and not just for autocomplete. You've used agents for multi-file refactors, migrations, test generation, and review workflows. You have opinions about what works and what doesn't
• You've led or played a significant role in a real front-end modernization - AngularJS to React, jQuery to a modern framework, a monolithic UI to micro-frontends, or similar. You know where the bodies are buried and you have the scars to prove it
• Deep design system or component library experience - you've built one, contributed substantially to one, or hauled a team off a tangle of one-off components onto something coherent
• You've done a legacy ASP.NET / .NET Framework modernization on the backend side
• Experience with distributed systems tooling - Kafka, event-driven architectures, or working with Postgres alongside SQL Server
• You've 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
• You communicate clearly. Good PR descriptions, straightforward design docs, pragmatic collaboration, low ego. We don't need a rockstar - we need someone the team trusts
• Background in regulated domains (healthcare, fintech, payments) where "move fast and break things" will get you fired

Benefits

• Remote work arrangement

Company Overview