Principal Engineer

Principal Engineer l Architecture l Design l Coaching l Typescript l AWS l Kafka l GraphQL l Lambda l £550-£625 per day l Outside IR35 l twice a week in London l 3 months

We're hiring a Principal Engineer to step into a critical gap on a large-scale platform rebuild, now moving into production and customer migration.

You'll operate as a technical leader across multiple squads, shaping architecture, mentoring leads, and unblocking delivery.

Essential Skills & Experience

• Proven Principal-level experience (80% Architecture/design - 20% Coding)
• Strong in AWS, TypeScript, event-driven systems
• Experience with high-scale distributed systems
• Someone collaborative, hands-on, and pragmatic

Desirable

• Salesforce Experience as this is their main CRM system

Contract:

• Rate: £550-£625 per day
• Contract: Outside IR35
• Location: London hybrid - ideally twice a week
• Duration: Initial 3 month contract
• Start date: Immediate

If you're interested, please apply or send your CV to (see below) and I'll be in touch!

Principal Engineer l Architecture l Design l Coaching l Typescript l AWS l Kafka l GraphQL l Lambda l £550-£625 per day l Outside IR35 l twice a week in London l 3 months

RSG Plc is acting as an Employment Business in relation to this vacancy.