Founding Staff Software Engineer – AI Platform

About the role

You will work closely with the CTO and founders, owning features from technical design through deployment and ongoing improvement. The role spans backend services, frontend experiences, APIs, data and AI capabilities. You will write production code, make practical technical decisions, troubleshoot issues and help establish engineering practices as the company grows.

Key responsibilities

• Build backend services and REST APIs using C# and ASP.NET Core.
• Develop intuitive web experiences with React and TypeScript.
• Design PostgreSQL data models and implement enterprise data ingestion.
• Integrate AI capabilities such as LLMs, agents and document‑processing workflows.
• Implement secure authentication, authorization and tenant isolation.
• Build reliable background jobs, integrations and asynchronous workflows.
• Test, deploy, monitor and continuously improve owned features.
• Collaborate with the CTO and founding team on architecture, product decisions and code reviews.

Required profile

• 8–12 years of software development experience.
• Strong hands‑on experience with C#, ASP.NET Core.NET 8+ and REST APIs.
• Production experience with React and TypeScript.
• Deep knowledge of PostgreSQL relational modelling and query performance.
• Experience deploying applications on Azure and/or Google Cloud.
• Ability to own features end‑to‑end, from design through deployment.
• Clear communication and reliable delivery in an early‑stage startup.

Required skills

• C#
• ASP.NET Core
• .NET 8+
• REST APIs
• React
• TypeScript
• PostgreSQL
• Azure
• Google Cloud Platform
• OpenAI APIs
• Vertex AI
• Docker
• Terraform
• GitHub Actions
• Vite
• Tailwind CSS
• Entity Framework Core
• Firestore
• Google Cloud Storage

What we offer

• Be one of the first senior engineers with meaningful influence over product and technical direction.
• Work directly with an experienced CTO and founding team.
• Build AI capabilities that address real enterprise problems.
• See your work used in active customer engagements.
• Help shape the engineering foundations of a Singapore‑based enterprise software company.