The Opportunity
As an early engineering hire, you will be responsible for designing and building the core architecture of the platform. This role requires a balance of backend systems design and fullstack implementation to ensure features are delivered reliably at scale.
Key Responsibilities:
- Systems Architecture: Design and implement fault-tolerant, event-driven services using queues, message brokers, and databases.
- Full Stack Development: Contribute to a React-Native codebase to facilitate end-to-end feature implementation.
- Technical Excellence: Write secure, high-quality code in TypeScript (Node.js) while maintaining 99.9% system uptime.
- Security & Compliance: Implement data protection measures that meet payment industry standards, such as PCI DSS and PSD2.
- Roadmap Strategy: Evaluate technical trade-offs and advocate for architectural improvements that enhance development speed.
About You
Experience: A minimum of 3 years of professional experience as a software engineer.
Technical Proficiency: Strong foundations in distributed systems, including event-based patterns and message brokers.
Modern Stack: Proficiency in TypeScript and Node.js is required. Experience with statically compiled languages (Go, Rust, or Java) is a significant advantage.
Mindset: A pragmatic approach to security and compliance, with the ability to deliver high-quality code in a fast-paced environment.
Working Environment
Location: Based in Hoxton, London.
Format: The team maintains an in-person culture with four office days per week. Wednesdays are optional for remote work to provide flexibility for focused tasks.
Compensation: £60,000 - £80,000 gross annually, depending on experience and qualifications.
Key Skills
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- Posted
- Mar 23, 2026
- Type
- Full-time
- Level
- Mid-Senior
- Location
- London Area
- Company
- Twelve
Industries
Categories
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