Senior Python Engineer

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Python Engineer in the United Kingdom.

This role sits at the core of a modern backend engineering team building high-performance, scalable systems that power advanced mobile marketing and AI-driven products. You will design and develop robust backend services that support large-scale data processing, automation, and real-time operations. The environment is highly collaborative, working closely with product, frontend, and ML teams to deliver end-to-end features. You will contribute to systems that handle asynchronous workloads, long-running jobs, and complex service integrations. The role has a strong focus on performance, reliability, and cost-efficient infrastructure. It offers exposure to cutting-edge technologies including LLM integrations and distributed architectures. You will help shape the backend foundation of products used by global customers.

• Design, build, and maintain scalable backend services using Python and FastAPI, ensuring performance, reliability, and maintainability.
• Implement and manage asynchronous job processing systems, including task queues, scheduling, retries, and status tracking using tools such as Redis, Celery, or Kafka.
• Integrate internal and external services, including LLM-based systems and APIs, ensuring smooth and secure communication across microservices.
• Ensure system stability through observability practices such as logging, monitoring, alerting, and performance tracking.
• Collaborate with cross-functional teams (frontend, ML, product) to deliver end-to-end features and improve system architecture.
• Contribute to infrastructure design on cloud environments, including containerized deployments and scalable backend services.

Requirements:

• 5+ years of experience in Python backend engineering with strong expertise in building production-grade systems.
• Solid hands-on experience with FastAPI and RESTful API design.
• Strong knowledge of PostgreSQL and object storage systems such as S3 or equivalents.
• Experience with asynchronous processing systems (Celery, Redis, Kafka) and handling long-running jobs.
• Proven experience working with microservices architectures, including retries, failure handling, and distributed systems design.
• Familiarity with observability tools and practices (logging, monitoring, alerting, tracing).
• Experience working in cross-functional teams including frontend and ML engineers.
• Strong experience with AWS, Docker, and Kubernetes in production environments.

Benefits:

• Flexible time off including vacation and public holidays aligned with local regulations, plus additional PTO for personal rest and recovery.
• Health and wellness support including medical coverage or compensation and paid sick leave.
• Continuous learning opportunities through internal training, courses, and access to industry conferences and events.
• Strong career growth framework with regular performance reviews and internal mobility opportunities.
• Remote-first culture with flexible working arrangements and strong work-life balance support.
• Team engagement initiatives including virtual events, offsites, and cross-team collaboration activities.
• Coworking support and access to office hubs in key locations when needed.