Full Stack Engineer

Senior Full Stack EngineerAgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!We are looking for a Senior Full Stack Engineer to build and maintain features across React microfrontends, TypeScript serverless Lambda functions, and Fastify services for a corporate tax provision platform. You will develop AWS infrastructure with Terraform, maintain GitLab CI/CD pipelines, write tests using Jest and Playwright, and leverage AI coding tools as a core part of daily development within a large multi-repo codebase. The role spans modern TypeScript and a legacy ASP.NET codebase and runs as a contract engagement through end of 2026.You will:Build and maintain features across React microfrontends, TypeScript/Node.js serverless applications, and Fastify services.Contribute to shared business logic across frontend and backend applications.Develop and maintain unit, integration, and E2E tests.Develop and deploy AWS infrastructure using Terraform.Participate in GitLab CI/CD pipeline development and maintenance.Collaborate with architects and product teams on APIs, async job patterns, and data layer abstractions.Leverage AI coding assistants effectively within a large, multi-repo codebase.Maintain the legacy ASP.NET Framework 4.7.2 application as needed during migration.MUST HAVES:3+ years of strong TypeScript/JavaScript with Node 18+Proficiency with React 18 and modern React patternsExperience with React microfrontend architectureExperience with backend APIs and serverless applications using Fastify, NestJS, AWS Lambda, and API GatewayExperience with PostgreSQLExperience with AWS and TerraformExperience with Docker and GitLab CI/CDExperience with Jest, Playwright, and/or K6Hands-on experience with AI coding tools such as Cursor, GitHub Copilot, Claude Code, or equivalentUpper-Intermediate English levelNICEST TO HAVES:Working knowledge of C# / .NETAG Grid and/or SpreadJSStryker mutation testingOpenTelemetry / Grafana FaroAmplitudeASC 740 tax provision concepts or corporate tax softwarepa11y / accessibility testingGitGuardian, Veracode, or SonatypeAI-powered testing or development agentsPERKS AND BENEFITS:Growth without limits: build your skills through mentorship, internal TechTalks, challenging projects, and a dedicated annual learning budgetCompetitive compensation: get recognition that reflects your skills and impact, with regular performance and compensation reviewsFlexibility: work 100% remotely with flexible hours that support focus, autonomy, and a healthy work rhythmMeaningful, modern projects: build impactful products using modern technologies alongside global teams and leading brandsCollaborative culture: join a supportive environment with zero micromanagement where ideas are welcomed and contributions are recognizedWell-being & support: access local well-being programs and people-focused support tailored to your location