Senior Typescript Engineer
Department: Engineering
Location: UK
Employment Type: FullTime
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
Talent Screen - 30 min
Hiring Manager Interview - 60 min
Technical Interview - 60 min
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.
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