Senior Fullstack Engineer – FinTech

About the role

Upvest is building an operational service panel called Upfront that sits on top of its Investment API, enabling enterprise clients to handle first‑line requests themselves. As a Senior Fullstack Engineer you will help define and deliver the product that lets financial institutions replace fragmented operations with a unified, AI‑enabled interface.

Key responsibilities

• Take operational problems from concept to production across a React/TypeScript frontend and Go backend.
• Design and implement per‑client isolated environments, least‑privilege access and Auth0 integration to ensure security and auditability.
• Expand the operational surface by connecting Upfront with internal Upvest domains and event‑driven services.
• Drive AI tooling adoption to improve software quality, speed and compliance.

Required profile

• Strong product engineering mindset with a focus on “why” as well as “how”.
• Solid backend experience in Go (or Java/Kotlin) and practical React/TypeScript frontend skills.
• Experience building multi‑tenant, configurable SaaS products.
• Deep knowledge of authentication, authorization and security best practices.

Required skills

• Go
• Java
• Kotlin
• React
• TypeScript
• Auth0
• Event‑driven architecture
• Containers and CI/CD pipelines
• Relational databases
• Monitoring and tracing tools

What we offer

• Access to €20,000 per year for AI tools and a personal development budget.
• 30 days of annual leave, sports benefits and a one‑month paid sabbatical every four years.
• Flexible remote work up to 183 days per year and choice of hub in Berlin, London or Tallinn.
• Competitive salary and participation in an employee equity program.