Senior Typescript Engineer (Exchange Data Team)

Cryptio; London; Remote; GBP 60,000 - 90,000; Full time

Job summary

A leading company in the crypto space is seeking an experienced software developer to join their remote-first team. You will work on building and optimizing third-party data integrations for their enterprise-grade platform, tackling complex backend challenges while ensuring compliance and data accuracy. Ideal candidates will have a solid understanding of TypeScript and PostgreSQL and a strong passion for the fintech industry.

Benefits

25 Days Paid Holiday

Birthday Off

Access to Mental Health, Wellbeing, and Coaching

Attractive Maternity and Paternity Policies

Gym Classes or Spa Treatments with ClassPass

Apple MacBook Pro

$200 Workplace Budget

Training and Development Budget

4% Pension Contributions

Private Medical & Dental Insurance

Qualifications

• 5+ years of software development experience required.
• Production experience with TypeScript essential.
• Strong knowledge of PostgreSQL or similar databases.

Responsibilities

• Write high-quality TypeScript code for new and existing integrations.
• Monitor integration health and proactively fix issues.
• Contribute to architecture decisions for scalability and reliability.

Skills

TypeScript

PostgreSQL

API integration

Problem solving

Collaboration

Tools

GitLab

Docker

Kubernetes

Job description

About Cryptio

Cryptio is building the data infrastructure for the crypto economy. Our enterprise-grade back-office platform helps businesses and institutions automate financial reporting and compliance for digital assets—so they can navigate the crypto space with confidence. Backed by top investors like Point Nine, 1kx, and BlueYard, we’ve raised $26M and work with industry leaders like Circle, Uniswap, and even the Government of El Salvador. Currently, we are a team of 80 amazing people. Crypto needs better infrastructure to go mainstream—and we’re here to build it!

Location

At Cryptio, we’re a remote-first team, with most working 100% remotely, while others enjoy a mix of office time in our hubs in London or Paris. This role requires candidates to be based in the UK, and we support the setup that works best for your lifestyle and productivity—whether that’s fully remote, in the office, or a blend of both!

The Team

You'll be joining Cryptio’s Exchange Data Squad, the team responsible for building and optimizing third-party data integrations that power our platform. This squad focuses on scalable backend services, handling external APIs, data pipelines, and infrastructure to ensure seamless, accurate financial data connections.

In the fast-paced crypto ecosystem, APIs, regulations, and data structures constantly evolve. Our customers rely on Cryptio for reliable, real-time data syncing across exchanges, custodians, and financial systems. As part of this team, you’ll tackle complex backend challenges—processing massive data volumes, resolving discrepancies, and ensuring security and compliance.

Team Stack

• Language: Typescript (Nest.js, Slonik, Zod)

• Databases: Clickhouse, RocksDB, Cassandra, PostgreSQL

• Infrastructure: Kubernetes, AWS, Pulumi, Docker, GitLab

What you'll be doing

• Write high-quality TypeScript code for new and existing integrations

• Ensure integrations meet user needs by collaborating with product teams

• Tackle data inconsistencies and unify data structures

• Monitor integration health and proactively fix issues

• Contribute to architecture decisions for scalability and reliability

We're looking for someone who has

• 5+ years of software development experience

• Production experience with TypeScript

• Experience with third-party APIs (REST, GraphQL)

• Strong knowledge of PostgreSQL (or similar relational databases)

• Familiarity with OAuth, JWT, and other API authorisation methods

• Excellent collaboration and stakeholder management abilities, with a track record of building strong relationships with technical and non-technical audiences.

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

Bonus

• Temporal.io, gRPC

• Tools: Docker, Gitlab, Grafana stack

• Infra: AWS, S3, Kubernetes

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

Access to Mental Health, Wellbeing, and Coaching

Attractive Maternity and Paternity Policies for your growing family

Gym Classes or Spa Treatments with ClassPass (or gym reimbursements)! ️️

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!

*UK have these additional benefits: 4% Pension Contributions towards your future + Private Medical & Dental Insurance with Allianz.

*France have these additional benefits: English language course options.