Medior-Senior Full-Stack Engineer (Backend Focus)

About the job

Build Scalable Backend Systems for a High-Performance Trading Platform

Join a globally active trading technology company building mission-critical systems used at scale. Recently acquired by a major US-based cryptocurrency exchange, the business offers long-term stability while maintaining a strong engineering-led culture.

This is a Medior–Senior Full-stack Engineer role with a clear backend focus. Around 90% of your time will be spent building backend systems, with some responsibility for reviewing frontend code produced by an outsourced team.

You’ll work in a small, experienced engineering team where ownership, pragmatism, and impact matter.

Why join?

• Backend-heavy role in a real production trading environment
• Small team with autonomy and real ownership
• Opportunity to work with Erlang in production (experience not required)
• Strong engineering culture focused on shipping
• Flexible hybrid working and work-abroad policy
• Visa, relocation, and 30% ruling supported

What you will be doing

• Designing and building backend services and systems
• Working mainly with Erlang, Elixir, Java, or TypeScript
• Collaborating closely with frontend and product teams
• Reviewing frontend code from an external team
• Owning features end-to-end in a fast-moving environment

Essential experience

• Experience with Erlang, Elixir, Java, or TypeScript
• Happy to work with Erlang
• Working knowledge of React
• 2–5 years professional experience (Medior–lower Senior)
• Comfortable building admin tooling / internal platforms
• Experience working in small teams

Bonus points if you…

• Build or maintain personal projects in your own time
• Enjoy experimenting, learning, and improving your craft
• Can talk through something you’ve built end-to-end

This isn’t about hustle — it’s about curiosity and ownership.

Mindset fit

• Ambitious and motivated to add value
• Pragmatic, outcome-focused engineer
• Strong work ethic and high agency
• Comfortable owning problems

Package and logistics

• Contract: 12 months, then permanent
• Location: Hybrid (3 days office / 2 remote)
• Work abroad: 60 days every 6 months
• Visa / 30% ruling / relocation: Supported

Team & process

• Team: 5 engineers (2 Full-stack, 3 Frontend)

Hiring process

1. Live coding interview (2 tasks)
2. Technical interview
3. Final conversation with Engineering Manager