Senior Full-Stack Engineer - AI SaaS, Remote

BruntWork; Manila; Remote; PHP 7,682,000 - 11,524,000; Full time

Benefits offered by this job

Permanent work from home

Immediate hiring

Health Insurance Coverage for eligible

Job summary

BruntWork is seeking an experienced Senior Full-Stack Engineer to help build, stabilize, and scale a modern AI-powered SaaS platform. You will work across the full stack—from React/TypeScript interfaces to ASP.NET Core, PostgreSQL, and Azure infrastructure—delivering end-to-end product capabilities.

You’ll own features from definition through deployment, improve AI workflows, and collaborate with the founder/product lead to translate requirements into robust technical solutions in a fast-moving,

Qualifications

• Professional software development experience with demonstrated depth in building and maintaining complex systems.
• Strong experience with either C#/ASP.NET Core or React/TypeScript, with the ability and willingness to work across both frontend and backend.
• Demonstrated experience owning features from product definition through database, API, user interface, testing, deployment, and production support.
• Strong PostgreSQL and data-modeling experience.
• Experience with asynchronous processing, background jobs, streaming interfaces, or distributed workflows.
• Strong understanding of authentication, authorization, multi-tenancy, secrets management, and sensitive customer data.
• Ability to navigate and improve an existing, complex codebase without unnecessarily rewriting it.
• Strong debugging, problem-solving, and root-cause analysis skills across multiple application layers.
• Strong product mindset focused on successful user workflows and excellent written communication skills for technical decisions and verification steps.
• Ability to work independently in a fast-moving product environment.

Responsibilities

• Deliver complete product features across React/TypeScript, ASP.NET Core, and PostgreSQL; turn partially implemented capabilities into reliable end-to-end user workflows; own features from definition through deployment and support.
• Strengthen AI-assisted experiences across Chat, App Studio, agent execution, organizational design, and knowledge retrieval; work with LLM gateways, structured generation, RAG, and AI evaluation; improve reliability, recovery, and error handling for long-running AI operations.
• Work extensively with PostgreSQL, data modeling, row-level security, pgvector, and graph-oriented data while preserving tenant isolation, approval workflows, and inline policy enforcement.
• Improve background workers, event-driven execution, SSE, and long-running job orchestration; strengthen failure handling, observability, system resiliency, and automated testing.
• Maintain strong authentication, authorization, multi-tenancy, and data security practices; work with enterprise technologies including Microsoft Graph, Microsoft Entra ID, Microsoft 365, OAuth, and Webhooks.
• Help transition the Azure environment (Container Apps, Blob Storage, Key Vault, Database for PostgreSQL) toward a secure, repeatable production operating model.
• Work directly with the founder/product lead to translate product intent into practical technical solutions, breaking initiatives into small, reviewable, production-quality releases.

Skills

React/TypeScript

ASP.NET Core

PostgreSQL

Background processing

APIs

Azure

LLM workflows

AI integration

Tools

Azure

SSE

Pgvector

OAuth

Microsoft Graph

Job description

BruntWork is seeking an experienced Senior Full-Stack Engineer to help build, stabilize, and scale a modern AI-powered SaaS platform. You will work across the full stack—from React/TypeScript interfaces to ASP.NET Core, PostgreSQL, and Azure infrastructure—delivering end-to-end product capabilities.

You’ll own features from definition through deployment, improve AI workflows, and collaborate with the founder/product lead to translate requirements into robust technical solutions in a fast-moving,