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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - **Company:** Publicis Groupe - **Location:** Greater London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Automation of Tests, Cloud Computing, Code Review, Computer Programming, Continuous Integration, Data as a Services, Information Engineering, Extract Transform Load (ETL), Distributed Systems, Amazon DynamoDB, Github, Python (Programming Language), PostgreSQL, Load Testing, MongoDB, Node.Js, NoSQL, Software Architecture, Redis, Cloud Services, Service Design, SQL Databases, Data Streaming, Data Logging, Flask (Web Framework), Large Language Models, Concurrency, Caching, Reliability of Systems, Backend, Rate Limiting, Fastapi, Event Driven Architecture, Kubernetes, Production Code, Enterprise Integration, Apache Kafka, Api Gateway, Amazon Simple Queue Service (SQS), Docker, Jenkins, Microservices - **Published:** September 8, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840614524-senior-backend-engineer ## About the Role * Demonstrable backend engineering experience, with architectural ownership over services or distributed systems. * Expertise in Python, FastAPI, Flask, or Node.js and modern backend development patterns. * Strong understanding of microservices, concurrency, async programming, and event-driven architectures. * Proficiency with SQL and NoSQL databases (PostgreSQL, DynamoDB, Redis, MongoDB). * Hands-on experience with Docker, Kubernetes, and cloud platforms (AWS or GCP). * Strong CI/CD experience using GitHub Actions, Jenkins, Argo, or similar tools. * Deep knowledge of observability practices - logs, metrics, traces, performance analysis. * Proven ability to write clean, testable, well-structured production code., * Experience with streaming or queuing systems (Kafka, Pub/Sub, SQS). * Familiarity with AI/LLM systems (AOE integration), though not required across all charters. * Knowledge of data engineering patterns or ETL/ELT workflows. * Prior experience with API gateway architectures, caching layers, or service meshes. * Exposure to cybersecurity best practices and secure service design. ## Description Backend engineering is foundational across all OneSuite - providing the APIs, integration layers, orchestration runtimes, and backend systems that power every charter, from Agent Studio to AOE, DFP, Channels, and SRE., We are seeking a Senior Backend Engineer (Individual Contributor) to lead the design, development, and evolution of backend systems across OneSuite. This is a hands-on engineering role - you will write production-grade code, solve complex distributed systems problems, shape backend patterns, and guide other engineers through technical influence (not supervision)., Backend Architecture & System Design * Architect distributed backend services and APIs using Python, FastAPI, Node.js, or equivalent frameworks. * Design modular, observable, and scalable backend components for orchestration, data services, and platform integrations. * Define patterns for microservices, domain boundaries, caching, queuing, resiliency, and error handling. * Build robust service-to-service communication mechanisms (REST, gRPC, event-driven patterns). * Implement secure authentication, authorization, rate limiting, and multi-tenant access controls. Hands-On Backend Development * Write high-quality, maintainable, production-ready code. * Integrate with external APIs (marketing platforms, cloud services, internal microservices). * Build and maintain CI/CD pipelines and infrastructure-as-code environments. * Lead code reviews, mentor engineers, and ensure high engineering standards. * Contribute to platform SDKs, internal libraries, and backend frameworks used across charters. Performance, Reliability & Observability * Implement tracing, structured logging, metrics, dashboards, and alerting. * Optimize services for latency, concurrency, throughput, and cost efficiency. * Ensure system reliability through automated testing, load testing, error budgets, and resiliency strategies. * Partner with SRE to define SLIs/SLOs and improve platform-wide reliability. Cross-Functional Collaboration * Work closely with Studio, AOE, DFP, Channel, and SRE teams on shared backend designs. * Collaborate with Product Managers and UX research teams to translate requirements into backend capabilities. * Align architecture decisions across charters to ensure consistency and maintainability. ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Build your backend using FastAPI](https://www.wearedevelopers.com/videos/506-build-your-backend-using-fastapi) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023)