CareerPlan

Senior Backend Engineer

London, United KingdomFull-time2026-10-06 → 2026-10-22

Core

Design, develop, and evolve backend systems and data pipelines for OneSuite, a unified marketing intelligence and automation platform powering agentic workflows and campaign activation across Search, Social, Programmatic, Commerce, and Measurement.

Role type

Senior individual contributor backend engineer (data engineering)

Builds

Scalable backend services, APIs, data pipelines, and orchestration runtimes for global marketing platforms

Domain

Digital marketing technology, data engineering, cloud-native systems

Required skills

Python, FastAPI, microservices architecture, distributed systems, SQL/NoSQL databases, PySpark, Databricks, Docker, Kubernetes, CI/CD, observability

Preferred skills

Kafka, Pub/Sub, streaming systems, AI/LLM integration, Delta Lake, API gateway design

Technologies

Python, FastAPI, Flask, PySpark, Databricks, PostgreSQL, DynamoDB, Redis, MongoDB, AWS, GCP, Docker, Kubernetes, GitHub Actions, Argo

Responsibilities

Architect distributed backend services and APIs; design and maintain data pipelines using medallion architecture; write production-grade code and integrate with external APIs; implement observability (tracing, logging, metrics); lead code reviews and mentor engineers; optimize services for latency and throughput.

Seniority

Senior, hands-on IC