Senior Typescript 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 role

We’re hiring Senior Typescript Engineers to join our growing engineering organisation.

You’ll design, build, and operate scalable backend systems powering a mission-critical SaaS platform used by leading crypto and financial institutions. This role focuses on production-grade TypeScript services, complex data workflows, and distributed systems running in a modern cloud-native environment.

Your work will directly support customers who rely on us for financial accuracy, operational integrity, and regulatory compliance. You’ll tackle evolving external APIs, large-scale data processing, reliability challenges, and performance at scale.

You’ll have strong ownership, contribute to architectural decisions, and help shape the technical direction of the platform as we grow.

Key technologies

TypeScript, Node.js, NestJS, PostgreSQL, AWS (EKS, S3), Kubernetes, Docker, Redis, Pulumi, GitLab CI/CD

What you’ll do

• Build and operate scalable backend services in TypeScript

• Design robust APIs and distributed systems

• Own features end-to-end: design, implementation, testing, deployment, and monitoring

• Integrate and maintain third-party APIs, handling authentication, rate limits, retries, and error recovery

• Model and transform complex data into reliable, unified systems

• Improve reliability, observability, and performance across services

• Contribute to architectural decisions that enhance scalability and resilience

• Raise engineering standards through code reviews, testing, and system improvements

We’re looking for someone who

• Has 5+ years of experience building and operating production backend systems

• Has strong expertise in TypeScript and Node.js and can design clean, scalable service architectures

• Has built and maintained API integrations at scale (REST/GraphQL), including OAuth, JWT, API keys, rate limiting, and failure handling

• Understands distributed systems concepts such as idempotency, background processing, eventual consistency, and observability

• Has experience with relational databases (e.g. PostgreSQL) and understands data modelling and performance trade-offs

• Writes well-structured, testable, maintainable code

• Has owned systems in production, including monitoring, debugging, and improving resilience

• Is comfortable taking technical ownership and driving implementation end-to-end

• Thrives in high-autonomy, high-expectation environments

Nice to have: experience in fintech, crypto, or other data-intensive domains.

Why join us

• Work on technically complex systems in the crypto and finance space

• Build infrastructure relied on by leading institutions

• Shape architecture and technical direction as we scale

• Strong internal mobility and growth opportunities

Process

1. Talent Screen - 30 min

2. Hiring Manager Interview - 60 min

3. Technical Interview - 60 min

4. Culture Interview - 45 min

The process tends to take 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 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.