Senior Full-Stack Engineer

Senior Full-Stack Engineer

Magellan · Bangkok, Thailand · Full-time

Salary: ฿100,000–฿120,000 gross per month, depending on experience

Magellan is building an AI operating system for e-commerce, connecting finance, operations, growth and customer workflows in one platform. It helps businesses understand what needs attention, prepares the work and executes actions within the authority the owner grants.

We're looking for a Senior Full-Stack Engineer with strong backend expertise to take ownership of core services, integrations and product features.

You'll work closely with the founder and technical team, contributing to engineering decisions and delivering features from technical design through to production.

What you'll do

• Build backend services and APIs using TypeScript and NestJS.
• Design PostgreSQL data models, access controls and reliable business workflows.
• Develop integrations with external platforms, including webhooks, background jobs and failure recovery.
• Build React interfaces connected to backend services.
• Integrate AI capabilities into product workflows, with appropriate validation and controls.
• Maintain automated tests, review code and support production releases.

What we're looking for

• Proven experience building, shipping and maintaining production web applications.
• Strong TypeScript, Node.js and relational database skills.
• Experience developing applications with React.
• A solid understanding of API security, database transactions and asynchronous processing.
• Experience investigating production issues and improving system reliability.
• The ability to make sound technical decisions, communicate clearly and deliver independently.

Experience with NestJS, PostgreSQL, Redis and AWS is particularly relevant. Experience with SaaS platforms, multi-tenant systems, e-commerce, financial workflows or applied AI would be an advantage.

You should be comfortable using AI development tools and able to explain, test and take responsibility for the code you ship.

Why join Magellan

This role offers substantial ownership of the core product, direct involvement in technical decisions and the opportunity to grow into broader engineering responsibility. We're looking for someone who enjoys building a business alongside building its software.

Apply

Send your CV or LinkedIn profile to [Confidential Information], along with a brief description of a relevant product or system you helped deliver and your contribution.