Location
London
Employment Type
Full time
Location Type
Hybrid
Department
Engineering
The role
We're hiring a Senior Software Engineer to help build something brand new: Cryptio's Digital Assets Lending Marketplace.
You'll work closely with Product, Engineering, Risk, Operations, Compliance, and Leadership to shape the foundations of a platform that institutional customers will trust with serious assets. Correctness, reliability, and operational safety are everything here.
Key technologies: Rust, modern backend systems, APIs, event-driven architectures, distributed systems.
What you'll do
- Design and ship the core services behind our new Loan Marketplace
- Build the workflows that power loan disbursements, repayments, margin calls, liquidations, and collateral releases
- Plug into custodians, market data providers, and other financial infrastructure
- Build guardrails that make unsafe states genuinely hard to reach (state machines, validation, audit trails, reconciliation)
- Write tests that catch the scary stuff: integration, property based, simulations, fuzzing
- Own systems end to end, from first sketch to running in production with proper observability and runbooks
- Raise the bar through strong design, thoughtful code reviews, and mentoring other engineers
- Partner with Product, Ops, and Compliance to make sure the product is safe to ship and operate
We're looking for someone who
- Has 7+ years of software engineering experience, with strong backend or systems chops
- Has built complex production systems with real business impact
- Has worked on high stakes systems: financial, infrastructure, or anything mission critical
- Deeply gets concurrency, race conditions, distributed systems, idempotency, ordering, and partial failure
- Has a strong testing and correctness mindset
- Can design safe state transitions, audit trails, and reconciliation flows
- Owns technical design even when the product is messy and undefined
- Has Rust experience, or strong evidence they can pick it up fast
- Writes and talks clearly about complex trade offs
- Mentors others and lifts the standard around them
Bonus points if you've worked on
- Financial systems (trading, payments, settlement, custody, lending) and the concepts that come with them
- Integrations with custodians, exchanges, banks, or market data providers
- Production Rust, or advanced testing like simulations, fuzzing, or formal modelling
- Crypto or enterprise financial software
Why you'll love this role
- Build a brand new financial product from scratch, the kind that genuinely matters
- Work on hard problems where engineering quality is the product
- Help shape how institutional crypto lending actually works
- Tackle technical challenges at the crossroads of crypto, fintech, lending, and enterprise software
- Work alongside a senior team that cares about getting things right
- Strong internal mobility and growth as we scale
Location requirement
Must be based in or around London, or willing to come into our London office regularly.
Perks
- Remote or Hybrid working
- 25 days paid holiday plus bank holidays
- One additional day of annual leave each year, up to 30 total days
- Your birth off
- Mental health resources, wellbeing programs, and professional coaching
- Family-friendly policies
- Fitness and wellness budget
- MacBook Pro
- $200 home office setup budget
- Training and development budget
Conclusion
If this sounds like you, we would love to hear from you.