Senior Rust Engineer

About Cryptio

We’re Cryptio. We build infrastructure to bring financial integrity to the crypto economy. Our enterprise-grade back-office and data platform power mission-critical accounting, reporting, and operational workflows for institutions, corporates, and crypto-native organisations.

We’re trusted by leaders like Circle, Societe Generale, Uniswap, Gemini, and the Government of El Salvador. We’ve raised $26m from top investors including Point Nine, 1kx, Tim Draper, and Ledger Cathay.

The opportunity

We’re hiring a Senior Rust Engineer to our Accounting squad to lead the technical development powering cost basis and PnL computations, staking, derivatives, accruals, and high-volume reporting pipelines. In this role, you’ll tackle complex accounting challenges at the forefront of digital assets and traditional finance. You’ll build the backbone for regulatory compliance, reporting, and audit readiness in the crypto sector, making a measurable impact for the world’s most innovative financial players.

Key technologies

• Rust (with a focus on performance and scalability)

• TypeScript (key dependencies: Nest.js, Zod, Slonik)

• PostgreSQL, Cassandra, ClickHouse

• Kubernetes on AWS, Docker, GitLab, Pulumi

What you’ll do

• Lead the development of core systems for Cryptio's SaaS accounting platform, ensuring robust and scalable customer workflows

• Architect, optimise, and maintain data-heavy solutions for financial reporting, reconciliation, and ledger automation

• Collaborate with staff engineers, product, and other teams to deliver features aligned with customer and business needs

• Identify, troubleshoot, and proactively resolve performance issues at scale

• Mentor and support the growth of engineers across the squad

• Contribute to codebase reliability by documenting best practices and enabling knowledge sharing across the company

We’re looking for someone who

• Has experience building and shipping production software, ideally with team or technical leadership

• Is comfortable working with Rust and eager to deepen their expertise in it

• Has hands-on experience (or a strong interest in learning) TypeScript and frameworks like Nest.js, Zod, or Slonik

• Is curious about crypto and accounting, or brings relevant domain experience

• Enjoys working on high-performance systems and diving into technical challenges involving large datasets

• Has worked with (or is open to learning) OLAP databases such as ClickHouse, as well as PostgreSQL

• Communicates clearly in English and values working collaboratively with others

• Is interested in mentoring, sharing knowledge, and growing with the team

• Approaches problems analytically and is passionate about building future finance infrastructure in crypto

Why you’ll love this role

• Own the development of mission-critical infrastructure in a fast-evolving industry

• Collaborate with a team of highly skilled engineers and cross-functional partners

• Work with cutting-edge technologies in cloud-native, data-heavy environments (Rust, TypeScript, ClickHouse, AWS)

• Freedom to experiment and drive architecture decisions impacting the entire product

• 100% remote role, with opportunities to visit our hubs in Paris or London

• Competitive salary and full benefits package — see our careers page for details

Interview process

Here’s what you can look forward to as we get to know each other:

• Talent Screen (15–30 min): We’ll start with a video call to discuss your application, the role, and answer your questions about Cryptio.

• Technical Interview (60 min): You’ll meet with a tech lead for a detailed technical discussion.

• Team Interview (45 min): Meet a product manager and an engineer to get to know your potential teammates.

• CTO Interview (45 min): Finish with a conversation with our CTO about your experience and fit for the role.

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

*** we have additional benefits depending on location

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.