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: Design and build a groundbreaking Digital Assets Lending Marketplace from scratch.
  • Company: Join Cryptio, a leading platform in crypto financial solutions with a dynamic culture.
  • Benefits: Enjoy remote work, 25+ days holiday, wellness programs, and a MacBook Pro.
  • Other info: Collaborate with a passionate team and grow your career in a fast-paced environment.
  • Why this job: Make a real impact in the crypto lending space while tackling exciting engineering challenges.
  • Qualifications: 7+ years in software engineering, strong backend skills, and Rust experience preferred.

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 Ltd

Cryptio is an exceptional employer that fosters a culture of innovation and collaboration, making it an ideal place for a Senior Rust Engineer to thrive. With a focus on building impactful financial products in the heart of London, employees benefit from strong internal mobility, generous holiday allowances, and a commitment to professional growth through training and wellness programs. Join a passionate team dedicated to engineering excellence and shaping the future of institutional crypto lending.
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Contact Detail:

Cryptio Ltd 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 might just land you an interview.

✨Tip Number 2

Prepare for your interviews by diving deep into Rust and the key technologies mentioned in the job description. Brush up on your knowledge of distributed systems and financial services to show you’re ready to tackle high-stakes challenges.

✨Tip Number 3

Don’t just talk about your past projects; be ready to discuss how they relate to building complex production systems. Highlight your experience with safety and correctness in engineering, as this is crucial for the role.

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of the Cryptio team and ready to contribute to something groundbreaking.

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

Rust
Backend Development
Distributed Systems
Concurrency
Race Conditions
Idempotency
Testing Mindset
Integration with Financial Systems
Audit Trails
Reconciliation Flows
Event-Driven Architectures
APIs
Mentoring
Design and Code Reviews

Some tips for your application 🫡

Show Your Passion for Crypto: When writing your application, let your enthusiasm for crypto shine through! We want to see how your interests align with our mission at Cryptio and how you can contribute to building something impactful in the digital asset space.

Highlight Relevant Experience: Make sure to showcase your experience with complex production systems, especially in financial services. We’re looking for someone who understands high-stakes environments, so don’t hold back on those impressive projects you've worked on!

Be Clear and Concise: We appreciate clarity in communication. When detailing your skills and experiences, keep it straightforward and to the point. Use examples that demonstrate your problem-solving abilities and technical expertise, especially in Rust and backend systems.

Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for this exciting opportunity. We can’t wait to hear from you!

How to prepare for a job interview at Cryptio Ltd

✨Know Your Rust Inside Out

Since this role heavily relies on Rust, make sure you brush up on your Rust skills. Be prepared to discuss your experience with Rust in detail, including any complex systems you've built. If you haven't worked with Rust before, be ready to explain how your existing programming knowledge can help you pick it up quickly.

✨Understand Financial Systems

Given the high stakes of the role, it's crucial to have a solid understanding of financial systems and concepts. Familiarise yourself with terms like loan disbursements, margin calls, and collateral releases. Being able to speak confidently about these topics will show that you grasp the importance of the work you'll be doing.

✨Prepare for Technical Challenges

Expect technical questions that test your knowledge of concurrency, race conditions, and distributed systems. Brush up on designing safe state transitions and audit trails. Practising coding problems related to these areas can help you feel more confident during the technical interview.

✨Show Your Collaborative Spirit

This role involves working closely with various teams, so highlight your experience in collaboration. Be ready to share examples of how you've partnered with product, ops, or compliance teams in the past. Emphasising your ability to communicate complex ideas clearly will demonstrate that you're a team player who can lift the standard around them.

Senior Rust Engineer - DCN in London
Cryptio Ltd
Location: London

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