Job Description

ABOUT THE OPPORTUNITY

A high-impact opportunity to join a trading platform based in Amsterdam as a Senior/Lead Backend Engineer. This is not an implementation-only role — the client is looking for someone who drives technical decisions, challenges assumptions, and shapes architecture from the ground up. If you're a TypeScript engineer who operates at lead level and thrives in autonomous, fast-moving environments, this is a compelling opportunity to work on a financially critical platform with real architectural ownership.

Language: English B2 minimum | Level: Senior–Lead | Location: Portugal-based, fully remote

PROJECT & CONTEXT

You'll be working on the backend of an Amsterdam-based trading platform, contributing directly to system architecture design, technical decision-making, and the evolution of a serverless AWS-based infrastructure. The environment is dynamic and intentionally ambiguous — the right candidate will bring structure and technical clarity, not wait for it.

Stack: TypeScript, AWS Lambda (Serverless), AWS CDK, DynamoDB, TypeSpec

WHAT WE'RE LOOKING FOR

• Senior or lead-level experience in TypeScript backend development, with production-grade delivery in complex environments
• Strong hands-on experience with AWS Serverless architecture, specifically AWS Lambda and AWS CDK
• Experience with DynamoDB or comparable NoSQL database solutions
• Ability to design and discuss system architecture at a high level — not just implement, but shape and own technical direction
• Proven capacity to evaluate technical trade-offs and propose well-reasoned alternatives
• Confidence to challenge assumptions constructively and drive better outcomes through technical debate
• Ability to work autonomously in ambiguous environments where requirements evolve and clarity needs to be created
• Familiarity with TypeSpec or similar API specification tooling
• English B2 or above — required for collaboration with the Amsterdam-based client team
• Based in Portugal, available to work fully remotely

NICE TO HAVE

• Experience evolving and modernising existing architectures — migrating, refactoring, or incrementally improving production systems without disrupting delivery
• Strong communication skills across both engineering peers and non-technical stakeholders
• Background in fintech, trading, or capital markets environments where performance and reliability are critical