Cryptio

Cryptio is an enterprise-grade crypto back-office platform. Our software helps financial institutions, corporates and crypto-native companies navigate the fragmented digital-asset landscape with confidence. We are a Series-A company, backed by tier-1 crypto and non crypto investors: Point Nine, BlueYard, Tim Draper, Alven, Aave, Consensys, Outlier Ventures. Some of our clients include top crypto companies like Uniswap or Metamask as well as banks and governments.

We're tackling one of the biggest challenges in crypto right now - building the infrastructure to help institutional adoption. And we're playing to win.

Location

This is a fully remote position within the UK or France. You should be able to easily join one of our hubs from time to time. Our hubs are Paris, London, and New-York.

Summary

Cryptio is looking for a lead software engineer interested in working on crypto / finance / accounting / reconciliation related products.

You will join a team of talented engineers working on Cryptio’s Data & Reconciliation API. This API-only product is central to our mission of enabling large-scale users to reconcile our proprietary on-chain datasets with their internal data seamlessly. You’ll play a key role in designing, building, and maintaining a high-performance, scalable system that ensures accuracy, speed, and reliability for enterprise-level use cases.

Key technologies:

• Rust

• PostgreSQL

• Kubernetes on AWS, Docker, GitLab… (modern development stack)

What’s special about this role?

This role is a rare opportunity to work at the intersection of blockchain technology, high-performance systems engineering, and enterprise-grade financial solutions. You’ll contribute to a product that plays a mission-critical role for our clients, helping them reconcile vast amounts of blockchain data with their internal records. This isn’t just about building an API; it’s about creating a robust, scalable solution that bridges the gap between cutting-edge decentralised technologies and the structured needs of enterprise financial operations.

The work you do will have a direct impact on how some of the world’s most innovative companies manage their blockchain data and offer cutting edge financial services to their users. Beyond the technical challenges, you’ll also be part of a dynamic, forward-thinking team that values collaboration, continuous learning, and pushing the boundaries of what’s possible in fintech. At Cryptio, you won’t just develop software, you’ll help define the future of reconciliation and data management in the crypto space.

Responsibilities

• Contribute to the design, development, and maintenance of the Data & Reconciliation API

• Drive architectural decisions to ensure scalability, reliability, and security, supporting the rapid growth of Cryptio’s integration capabilities

• Work with large-scale data pipelines, optimising reconciliation workflows for speed and accuracy

• Oversee code quality by conducting code reviews, providing feedback, and ensuring adherence to best practices

• Work closely with product and engineering leadership to align data and reconciliation projects with Cryptio’s strategic goals

• Monitor and troubleshoot user issues, proactively implementing improvements

Requirements

• 7+ years of experience in software engineering

• Pro-efficient in Rust, ability to write and ship production-grade code

• Pro-efficient with PostgreSQL, ability to design database schemas and write complex queries

• Some experience working with data-heavy products

• Some experience optimising systems: caching, indexing, query optimisation, profiling…

• Impeccable spoken and written English

• Exceptional communication skills and a passion for mentoring and developing engineering talent

• Thriving when working with others - collaboration is paramount for this role

• An analytical mindset, a passion for solving complex problems, and an interest in the crypto and fintech industry

Interview Process

1. Talent Screen - 45 min

2. Technical Interview - 90 min

3. Team Interview - 45 min

4. Leadership Interview - 45 min

Benefits

✨ Fully-Remote / Hybrid – The choice is yours! 🌍🏡

🎉 25 Days Paid Holiday + Bank Holidays + Your Birthday Off 🎂

⭐️ Earn an extra day of annual leave for every year you're at Cryptio 🎁

💰 4% Pension Contributions towards your future! 💼

🏥 Private Medical & Dental Insurance with Allianz! 🦷💊

👶 Attractive Maternity and Paternity Policies for your growing family 👨‍👩‍👧‍👦

💪 Gym Classes or Spa Treatments with ClassPass! 🧘‍♂️🧖‍♀️

💻 Apple MacBook Pro – The best tech at your fingertips! 💻✨

💵 $200 Workplace Budget to create your perfect home office! 🏠💼

📚 Training and Development Budget – Invest in yourself and grow! 🚀