Principal Python Engineer Company: OCHO | Building Teams Type: Permanent | Full-time Contact: Ryan Quinn on LinkedIn Overview OCHO are hiring a Principal Python Engineer to lead the architecture and delivery of high-performance, cloud-native platforms. This role is ideal for an engineer who has delivered production-grade systems within domains such as financial services, energy technology, or trading, and who enjoys shaping technical direction at scale. The Opportunity Own the design and implementation of Python microservices deployed across AWS and on-prem environments Develop large-scale data capture, processing, and transformation platforms using event-driven architectures Drive best practice in CI/CD, branching strategy, release automation, and operational excellence Work closely with cross-functional teams across the UK, Ireland, and Europe on trading, monitoring, and optimisation platforms Mentor engineers at all levels, support graduate onboarding, and influence long-term engineering standards Tech Environment Languages and frameworks: Python, FastAPI, GraphQL (Strawberry), ETL pipelines Cloud and infrastructure: AWS EC2, ECS, ECR, RDS, IoT Core, IAM, MSK; Docker; Linux Data and messaging: Kafka MSK, MQTT, REST APIs, Redshift, SQL Tooling and practices: Bitbucket, CI/CD pipelines, trunk-based development, automation-focused workflows What You Will Bring 6 plus years software engineering experience, ideally with client-facing delivery exposure Strong commercial Python expertise; certifications such as PCEP or PCAP advantageous Experience designing event-driven systems, microservices, and high-throughput data pipelines Demonstrated leadership ability through mentorship, guidance, and supporting early-career engineers Beneficial sector experience within energy markets, trading systems, or financial services Whats On Offer Competitive salary plus options Significant influence over architecture, process, and engineering direction A culture focused on innovation, learning, and technical excellence High-impact cross-functional exposure across multiple products and markets Interested? Message Ryan Quinn on LinkedIn for an informal chat or apply with your CV. Skills: Python AWS Microservices Benefits: Work From Home Options