Descripción de la oferta
Senior Backend Engineer (Python / Data) – Spain, Remote – Salary up to €65,000Build data and ML powered backend systems for a major global airline. Flexible remote across Spain. Able to travel to the client’s London office once a month for two to three days.ResponsibilitiesDesign, build and maintain scalable, secure server‑side systems.Build robust microservices and APIs using FastAPI, Flask or similar.Host and serve AI and ML models in production, integrating them into backend systems and exposing them through clean, performant endpoints.Develop scalable microservices using REST, gRPC or GraphQL.Optimise database queries and schemas for performance and reliability.Write unit and integration tests and maintain clear technical documentation.Monitor and optimise performance using observability tooling such as CloudWatch or Datadog.Apply a strong focus on separation of concerns, security and performance.Work in an agile and scrum environment.Qualifications8+ years of backend development experience with a focus on scalable, high‑performance systems.Proficiency in Python and backend frameworks such as FastAPI or Flask.In‑depth knowledge of SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.Extensive Amazon Web Services experience, including database hosting, API management and serverless services.Experience with Docker and container orchestration (e.g., ECS).Familiarity with version control (Git), GitHub Actions and CI/CD pipelines, plus performance tuning and scalability techniques.Experience with message brokers such as Kafka or AWS SQS.Knowledge of infrastructure as code with Terraform or CloudFormation.Experience with observability tooling such as CloudWatch or Datadog.Experience with serverless and event‑driven paradigms, e.g., AWS Lambda.AWS certifications are a plus.Right to work in Spain as a full‑time employee; no sponsorship available.BenefitsFlexible remote work across Spain.Modern data and ML focused stack with genuine ownership.Opportunity to build for a major global airline within a fast‑growing consultancy.
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