Principal Engineer

Salary: £? - ? per year

Requirements:

• Proven experience with Camunda and/or Temporal.io in backend and distributed systems
• Strong Python skills and experience designing production-grade APIs
• Expertise in building resilient, fault-tolerant enterprise applications
• Knowledge of workflow orchestration, retries, state management, and failure handling
• Experience with APIs, messaging, microservices, and event-driven architectures
• Hands-on experience with LangChain, LangGraph, LangSmith, and AI-powered workflows
• Familiarity with AWS Bedrock, AWS AgentCore, serverless, and container deployments, preferred
• Ability to evaluate technologies independently and influence engineering standards
• Strong stakeholder management and mentoring skills

Responsibilities:

• Lead technical evaluation and comparison of Camunda vs Temporal.io
• Design scalable patterns and reference architectures for enterprise workflow orchestration
• Drive modern backend engineering standards, including CI/CD, deployment automation, and operational best practices
• Architect durable, fault-tolerant distributed systems with high observability
• Develop integration strategies across enterprise APIs, event streams, and downstream systems
• Build reusable frameworks, prototypes, and production solutions independently
• Guide engineering teams on orchestration, system resilience, and operational excellence
• Collaborate with stakeholders to define scalable technology roadmaps
• Contribute to AI-enabled software initiatives using LLM frameworks and AWS AI services

Technologies:

• AI
• AWS
• Architect
• Backend
• Camunda
• CI/CD
• LLM
• Python
• Serverless
• microservices
• Cloud

More:

We are a leading banking institution delivering a strategic technology transformation within a dynamic financial environment. This is a 6-month+ principal engineer contract based in Knutsford, South Manchester, with on-site work required 2-3 days per week and an umbrella-only arrangement. We offer the opportunity to lead innovative projects focused on workflow automation, AI-enabled software initiatives, and the development of resilient, scalable enterprise systems as part of a forward-thinking team shaping the future of banking technology.

last updated 30 week of 2026