Principal Python Developer

Principal Python Engineer OCHO are seeking a Principal Python Engineer to take on a leadership role in building scalable, cloud-native platforms. This is an opportunity for an experienced developer who has delivered production-grade systems across financial services, energy technology and trading platforms. My client The Opportunity Lead the design and delivery of Python-based microservices deployed across AWS and physical hardware. Build scalable data capture and processing platforms leveraging event-driven design and modern cloud tooling. Champion CI/CD pipelines, branching strategies and deployment automation to improve speed and reliability. Work across cross-functional teams in the UK, Ireland and Europe, delivering real-world solutions for trading, monitoring and optimisation systems. Mentor engineers, support graduate training and influence technical direction. Tech Environment Languages/Frameworks: Python (FastAPI, GraphQL/Strawberry), ETL pipelines. Cloud & Infra: AWS (EC2, ECS, ECR, RDS, IoT Core, IAM, MSK), Docker, Linux. Data & Messaging: Kafka (AWS MSK), MQTT, REST APIs, Redshift, SQL. Tools & Practices: Bitbucket, CI/CD, trunk-based branching, process automation. What You'll Bring 6 years of software engineering experience, including consultancy and client-facing delivery. Strong commercial background in Python with certifications (PCEP/PCAP). Experience with event-driven architectures, microservices and scalable data pipelines. Proven leadership in technical direction, mentoring and graduate development. Exposure to energy markets, trading platforms or financial services a bonus. What's on Offer Competitive base salary and options Opportunity to influence architecture and engineering standards. A culture of innovation and continuous learning. Cross-functional exposure across multiple markets and domains. If you're a Python engineer who thrives on solving complex problems and wants to play a leading role in shaping scalable cloud-native systems, reach out to Ryan Quinn on LinkedIn for more information. Skills: Python AWS Microservices Benefits: Work From Home Options

Location: Belfast, GB

Posted Date: 9/17/2025