Senior Rust Engineer - DCN in London
Senior Rust Engineer - DCN

Senior Rust Engineer - DCN in London

London Full-Time 80000 - 100000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Build a groundbreaking financial product in crypto lending from the ground up.
  • Company: Join Cryptio, a leading platform transforming financial data for the crypto world.
  • Benefits: Enjoy remote work, 25 days holiday, wellness programs, and a MacBook Pro.
  • Other info: Collaborative culture focused on learning, growth, and innovation.
  • Why this job: Make a real impact on how institutional crypto lending operates.
  • Qualifications: 7+ years in software engineering with strong backend skills and Rust experience.

The predicted salary is between 80000 - 100000 £ per year.

About Cryptio

Cryptio is the leading enterprise-grade financial data transformation and digital asset ERP platform for accounting, financial reporting, tokenization compliance, and loan management solutions. It is a complete back and middle-office platform that delivers financial integrity and accountability for businesses in crypto. Its platform allows users to transform on-chain and off-chain crypto activity into auditable records for accounting, treasury, tax filings, license applications, loans activity, and regulatory reporting.

Having recently announced our $45m series B, now couldn't be a better time to join!

The role

We're hiring a Senior Software Engineer to help build something brand new: Cryptio's Digital Assets Lending Marketplace. This is 0-1. You'll be building a high stakes financial product from the ground up, the kind that handles real money, real loans, and real consequences. Think loan creation, repayments, margin calls, liquidations, collateral releases, and marketplace execution. Get it right and we change how institutional crypto lending works. Get it wrong and someone's missing money. So, you know, no pressure.

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.

If you've built complex production systems in financial services, trading, payments, custody, or settlement, and you love the idea of working on something where engineering quality genuinely matters, this is your kind of role.

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

Must be based in or around London, or happy to come into our London office regularly.

Interview process

  • Talent Screen, 30 min
  • Hiring Manager Interview, 60 min
  • Technical Interview, 60 min
  • Product Engineering Interview, 45 min
  • Culture Interview, 45 min

The process usually takes 2-3 weeks.

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 birthday 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

If this sounds like you, we would love to hear from you.

At Cryptio, we move fast and take ownership of outcomes. We learn from failures, celebrate wins, and let humility, curiosity, and a passion for crypto guide how we work. If you value collaboration and want to build with purpose, you’ll feel right at home here.

Senior Rust Engineer - DCN in London employer: Cryptio

Cryptio is an exceptional employer that fosters a culture of innovation and collaboration, allowing employees to build impactful financial products from the ground up. With strong internal mobility, generous benefits including remote working options, and a commitment to employee well-being, Cryptio provides a supportive environment for professional growth in the dynamic field of crypto finance. Join a passionate team in London where your contributions will directly shape the future of institutional crypto lending.
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Contact Detail:

Cryptio Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Rust Engineer - DCN in London

✨Tip Number 1

Network like a pro! Reach out to folks in the crypto and fintech space, especially those who work at Cryptio or similar companies. A friendly chat can open doors and give you insights that job descriptions just can't.

✨Tip Number 2

Prepare for those interviews! Brush up on your Rust skills and be ready to discuss complex systems you've built. Show us how you tackle high-stakes challenges and ensure reliability in your projects.

✨Tip Number 3

Don’t just apply anywhere; apply through our website! It shows you're genuinely interested in joining Cryptio and helps us keep track of your application better.

✨Tip Number 4

Be yourself during the interviews! We value authenticity and want to see how you think and solve problems. Share your experiences and let your passion for crypto shine through!

We think you need these skills to ace Senior Rust Engineer - DCN in London

Rust
Backend Development
Systems Design
APIs
Event-Driven Architectures
Distributed Systems
Concurrency
Race Conditions
Idempotency
Testing Mindset
Audit Trails
Reconciliation Flows
Technical Design
Mentoring

Some tips for your application 🫡

Tailor Your Application: Make sure to customise your CV and cover letter for the Senior Rust Engineer role. Highlight your experience with complex production systems and any relevant financial services background. We want to see how your skills align with what we're building at Cryptio!

Show Off Your Rust Skills: If you've got Rust experience, flaunt it! If not, demonstrate your ability to pick up new technologies quickly. Share examples of projects where you’ve tackled concurrency or built distributed systems. We love seeing that passion for learning!

Be Clear and Concise: When writing your application, keep it straightforward. Use clear language to explain your past experiences and the impact they had. We appreciate candidates who can communicate complex ideas simply—it's a key part of our engineering culture!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at Cryptio!

How to prepare for a job interview at Cryptio

✨Know Your Rust Inside Out

Since the role requires strong Rust experience, make sure you brush up on your Rust skills. Be prepared to discuss your past projects and how you've used Rust in complex systems. Practise explaining your thought process around concurrency, race conditions, and distributed systems.

✨Understand Financial Systems

Familiarise yourself with the concepts of financial systems, especially those related to lending, payments, and trading. Be ready to discuss how these systems work and the challenges they face. This will show that you understand the stakes involved in building a high-impact product.

✨Prepare for Technical Challenges

Expect technical questions that test your problem-solving skills. Prepare to tackle scenarios involving state transitions, audit trails, and error handling. Practise coding problems that involve designing safe and reliable systems, as this is crucial for the role.

✨Show Your Mentorship Skills

The company values collaboration and mentorship. Be ready to share examples of how you've mentored others or raised the bar in your previous roles. Highlight your ability to communicate complex ideas clearly, as this will be key in working with cross-functional teams.

Senior Rust Engineer - DCN in London
Cryptio
Location: London

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