Principal Engineer

Salary: £? - ? per year

• 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 Lang Chain, Lang Graph, Lang Smith, and AI‑powered workflows
• Familiarity with AWS Bedrock, AWS Agent Core, serverless, and container deployments, preferred
• Ability to evaluate technologies independently and influence engineering standards
• Strong stakeholder management and mentoring skills

• 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

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

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.