[Hiring] .NET FullStack Developer @TMS LLC

Role Description

We are hiring a .NET Full Stack Developer to work as a forward-deployed engineer, embedding with product teams and portfolio companies to build new products and modernize established ones. You will write code across the full stack — backend services, APIs, data, and UI — and operate in an AI-first environment where the majority of code is produced through leading AI coding tools.

This is a hands-on builder role. You'll ship features end-to-end, collaborate closely with senior and principal engineers, and grow into deeper architecture and product ownership over time.

What You'll Do

• Build, test, and deploy full-stack web applications using React, .NET Core (C#), and modern frameworks.
• Design and maintain robust data layers, including relational and NoSQL databases (SQL Server, MongoDB).
• Develop and optimize database objects — stored procedures, indexes, and queries — ensuring high performance and scalability.
• Collaborate with product managers and design teams to translate complex domain workflows across organisation's regulated verticals into intuitive, efficient user experiences.
• Implement, secure, and optimize RESTful APIs and microservices hosted on Microsoft Azure.
• Build and manage CI/CD pipelines and automated deployments using Azure DevOps.
• Manage Azure services such as App Service, Containers, Functions, Key Vault, Storage Accounts, Service Bus, and Application Insights.
• Optimize front-end and back-end performance for scalability, reliability, and maintainability.
• Write clean, well-structured, and testable code following industry best practices.
• Participate in architecture planning, code reviews, and continuous improvement initiatives alongside senior and principal engineers.
• Work AI-first, using Claude Code, Codex, GitHub Copilot, Cursor, or JetBrains AI as your primary day-to-day development tools.
• Contribute to new product builds and modernization across organisation's six regulated industry verticals, plus special projects from Venture AI Labs — prototypes, applied experiments, and zero-to-one product bets.

Qualifications

• Strong .NET Core / C# full stack experience, including ASP.NET Core, Web APIs, and Entity Framework.
• Solid React experience (TypeScript a plus) building modern, performant web UIs.
• Strong SQL Server skills — schema design, stored procedures, indexes, and query optimization — plus working experience with NoSQL (MongoDB or similar).
• Hands-on Microsoft Azure experience, including App Service, Containers, Functions, Key Vault, Storage Accounts, Service Bus, and Application Insights.
• CI/CD with Azure DevOps — building pipelines, automated deployments, and release management.
• Hands-on AI-first development experience with Claude Code, Codex, GitHub Copilot, Cursor, or JetBrains AI.
• Python as a supporting technology is a strong plus.
• Solid fundamentals in software design, testing, secure-by-default engineering, and observability.
• Strong communication and ownership — comfortable in a remote, forward-deployed environment with shifting context across products and teams.

Requirements

• Experience working in a high-velocity R&D group, innovation lab, incubator, fast-moving startup, or skunkworks-style team inside a larger enterprise.
• Experience modernizing legacy .NET systems (Framework → .NET, monolith → services, etc.).
• Exposure to LLM-powered features — RAG, evals, agent frameworks, tool use.
• Prior work inside regulated industries (financial services, healthcare, legal, insurance, compliance-driven SaaS, etc.)

Benefits

• All your information will be kept confidential according to EEO guidelines.