At a Glance
- Tasks: Design and build a cutting-edge Digital Assets Lending Marketplace using Rust.
- Company: Join Cryptio, a forward-thinking company in the crypto and fintech space.
- Benefits: Enjoy remote or hybrid work, 25 days holiday, and strong career growth opportunities.
- Other info: Collaborate with a passionate team on challenging technical problems.
- Why this job: Make a real impact by shaping the future of institutional crypto lending.
- Qualifications: 7+ years in software engineering with expertise in backend systems and Rust.
The predicted salary is between 80000 - 100000 € per year.
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
Senior Rust Engineer - DCN in London employer: Kubelt
At Cryptio, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration. As a Senior Rust Engineer, you'll have the unique opportunity to build a groundbreaking financial product from the ground up, while enjoying strong internal mobility and growth opportunities within our supportive team. With a hybrid working model and generous benefits, including 25 days of paid holiday, we ensure our employees thrive both personally and professionally in the vibrant city of London.
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 industry, attend meetups, and connect with people on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your Rust projects and any relevant work. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Prepare for interviews by brushing up on common technical questions and system design scenarios. Practice coding challenges and be ready to discuss your past experiences in detail—especially those high-stakes projects!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are genuinely interested in joining our team.
We think you need these skills to ace Senior Rust Engineer - DCN in London
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the skills and experiences that align with the Senior Rust Engineer role. Highlight your backend systems experience, especially with Rust, and any relevant projects that showcase your ability to build complex production systems.
Craft a Compelling Cover Letter:Use your cover letter to tell us why you're passionate about building financial products and how your background makes you a great fit for our team. Be sure to mention your experience with high-stakes systems and your approach to ensuring correctness and reliability.
Showcase Your Problem-Solving Skills:In your application, include examples of how you've tackled tough engineering challenges in the past. We want to see your thought process and how you approach designing safe state transitions or handling concurrency issues.
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 gives you a chance to explore more about what we do at StudySmarter!
How to prepare for a job interview at Kubelt
✨Know Your Rust Inside Out
Make sure you brush up on your Rust knowledge before the interview. Be ready to discuss your experience with Rust, especially in building complex systems. Prepare to explain how you've tackled concurrency and race conditions in past projects.
✨Showcase Your Problem-Solving Skills
Be prepared to discuss specific challenges you've faced in high-stakes systems. Think of examples where you designed safe state transitions or implemented robust testing strategies. This will demonstrate your ability to handle the complexities of financial systems.
✨Understand the Business Impact
Since this role involves building a marketplace for institutional customers, it’s crucial to understand the business side of things. Be ready to talk about how your engineering decisions can impact the product's reliability and safety, and how that translates to customer trust.
✨Prepare for Technical Design Discussions
Expect to dive deep into technical design during the interview. Practice explaining your thought process clearly, especially when discussing trade-offs in system design. This will show that you can own technical design even when the product is still taking shape.
