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Senior Platform Engineer
Senior Platform Engineer
Company Overview
IMS is a world-leading connected insurance and telematics provider, delivering services, analytics, and technology to insurers, governments, and enterprises. We are a globally distributed team united by a shared mission: using data as a force for good to make driving Safer. Smarter. Greener.
We believe the best solutions come from the intersection of different ideas. At IMS, we take an inclusive approach to how we build, deliver, and commercialise our technology. If you're passionate about technology that has a real-world impact, we’d love to hear from you.
Job Description
The Senior Platform Engineer is a technical leader responsible for designing, operating, and continuously improving the AWS serverless data platform. This role sits at the intersection of infrastructure, software engineering, and developer experience—owning the reliability and scalability of the platform while actively enabling product and data engineering teams to build and ship confidently.
Key Responsibilities
Platform Tooling & Self-Service
- Design and maintain self-service tooling, templates, and scaffolding that allow engineers to provision and deploy serverless resources independently.
- Own and evolve internal developer platform (IDP) capabilities, including:
- CI/CD pipeline templates
- Infrastructure as Code (IaC) modules
- Reusable Lambda/Step Functions patterns
- Reduce cognitive overhead for engineers by abstracting platform complexity behind well-documented, opinionated interfaces.
- Partner with engineering teams to gather feedback and continuously improve the developer experience.
Engineering Standards & Technical Documentation
- Produce and maintain high-quality technical documentation, runbooks, and architectural decision records (ADRs) for the platform.
- Define and evangelise engineering standards for serverless development, including:
- Naming conventions
- Logging patterns
- Error handling
- Observability
- Lead or contribute to internal tech talks, workshops, and onboarding programs to upskill engineers on platform capabilities.
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Collaboration & Stakeholder Engagement
- Act as a trusted technical partner to product and data engineering squads, embedding platform expertise into delivery teams as needed.
- Define clear SLAs and SLOs for platform services and communicate them to consuming teams.
- Triage and resolve platform-related blockers rapidly, prioritising unblocking engineers over reactive maintenance work.
Security & Compliance
- Ensure platform infrastructure adheres to security best practices, including:
- Least-privilege IAM
- Encryption at rest and in transit
- Secrets management
- Collaborate with security and compliance stakeholders to maintain audit readiness and address vulnerabilities promptly.
- Embed security considerations into platform tooling so that secure defaults are the path of least resistance for engineers.
Infrastructure as Code & Delivery
- Own and evolve IaC for all platform infrastructure using tools such as Terraform, AWS CDK, or CloudFormation.
- Enforce GitOps and CI/CD best practices across platform delivery, ensuring changes are:
- Peer-reviewed
- Tested
- Deployed safely
- Champion progressive delivery practices, including:
- Feature flags
- Canary deployments
- Rollback mechanisms
Continuous Improvement
- Drive a culture of continuous improvement through:
- Regular platform reviews
- Blameless post-mortems
- Iterative delivery
- Measure and report on engineering metrics to demonstrate and drive improvement.
- Contribute to the broader engineering community through:
- Internal knowledge sharing
- Cross-team collaboration
- Participation in guild or chapter activities
Key Requirements
AWS Serverless & Cloud Architecture
- Deep, hands-on experience with the core serverless stack—design pipelines with cost, latency, and failure modes in mind.
- Knowledge of AWS IAM, VPC, and security patterns equally important—not just getting things working.
Python & Java
- Strong Python skills essential—not just scripting, but writing:
- Production-quality code
- Testable, maintainable code
- The candidate must be credible enough to review Python code used by teams
- Java familiarity for:
- Legacy pipeline work
- Cross-language debugging
- (depth not mandatory but preferable)
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Infrastructure as Code
- Proficient in Terraform—building reusable, well-structured IaC modules.
- GitOps model experience—peer-reviewed, pipeline-deployed infrastructure.
CI/CD & Developer Platform Thinking
- Experience building and maintaining CI/CD pipelines.
- Mindset of treating other engineers as customers, reducing friction and cognitive load.
Observability & Operational Maturity
- Comfortable with CloudWatch, ideally with a third-party observability tool.
- Understanding of SLOs and error budgets beyond theory—designing actionable, non-noisy alerts.
Communication & Developer Empathy
- Excellent written communication—writng clear documentation and giving useful code-review feedback.
- Ability to explain complex infrastructure decisions to non-platform engineers.
Security Mindset
- Practical knowledge of:
- Least-privilege IAM
- Secrets management
- Baking secure defaults into platform tooling.
Why Should You Join Us?
- Flexible remote working options
- Flexible holiday scheme (unlimited vacation) to prioritise wellbeing
- ‘Work From Anywhere’ Policy – work almost anywhere in the world for 30 days per year!
- Employee Assistance Program
- Enhanced maternity/paternity package
- Funded training opportunities
- Paid enrolment pension & private medical insurance
- Cycle to Work & car maintenance salary sacrifice discounts!
- Kudos Hub – peer-to-peer recognition system with rewards
- Innovative growth in the global telematics industry
Please note that while we accommodate remote work, this position requires a base location in the United Kingdom.
(Note: Requirements such as UK-based work and policy locations can’t be removed, only preserved.)
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