Job Title Senior Software Engineer Company Description Ensembleanalytics.co.uk - High-growth logistics SaaS platform digitalising global port operations Job Description Join a small, high-impact team building Athena, an intelligent platform transforming workforce management in the global supply chain. You will own the backend architecture for new products from concept to launch, turning rough operational ideas into production-ready Python systems that solve complex, real-world scheduling constraints for port operators and multimodal industries. Location London, UK Why this role is remarkable

Ship code with immediate real-world impact on global supply chains, moving away from legacy systems to intelligent, automated workforce tools. Enjoy true product ownership in a flat ~8-person startup where you influence the roadmap and architect features from scratch rather than just closing tickets. Work from a premium London office at The Ministry, featuring an on-site gym, bike storage, and a collaborative, focused culture that prioritizes shipping over process theatre.

What you will do

Architect and build core backend systems including a complex pay calculation engine and a cross-client marketplace for shift requests. Design and deploy high-performance FastAPI and SQLAlchemy APIs within an AWS environment to power the Athena platform and employee mobile app. Collaborate directly with product and operations teams to translate ambiguous requirements into scalable, well-architected software solutions and integrated ML models.

The ideal candidate

5+ years of professional experience shipping production-grade Python systems using FastAPI, SQLAlchemy, and PostgreSQL in a fast-paced environment. Deep technical proficiency with asynchronous workloads via Celery, containerization with Docker, and cloud deployment on AWS infrastructure. Strong architectural intuition and the ability to communicate complex technical trade-offs to non-technical stakeholders while operating with a high degree of autonomy.

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