{"id":1344038,"url":"https://alion.io/job/publicisgroupe-senior-backend-engineer","title":"Senior Backend Engineer","company":{"id":46462,"name":"Publicis Groupe","domain":"publicisgroupe.com","url":"https://alion.io/company/publicisgroupe","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"iCIMS","truth_index":{"grade":"A","score":100,"open_postings":27,"ghost_share":0,"stale_share":0,"repost_share":0.037,"time_to_fill_p50_days":10,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":67000,"max_usd":126000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":28},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"DynamoDB","optional":false},{"name":"FastAPI","optional":false},{"name":"Flask","optional":false},{"name":"GCP","optional":false},{"name":"GitHub Actions","optional":false},{"name":"gRPC","optional":false},{"name":"Jenkins","optional":false},{"name":"Kubernetes","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"API Gateway","optional":true},{"name":"ETL/ELT","optional":true},{"name":"JavaScript","optional":true},{"name":"LLM","optional":true},{"name":"Rest-Assured","optional":true}],"status":"closed","first_seen_at":"2026-09-27T16:04:50Z","employer_posted_date":"2026-10-18","last_verified_at":"2026-10-22T16:23:35Z","board_verified":false,"closed_at":"2026-10-22T16:23:35Z","days_open":25,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":24},"description":"Company Description\nCompany DescriptionPublicis Media harnesses the power of modern media through leading agency brands\nDysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and\nZenith, as well as global accelerator\nPMX; immersive experience group PMCI and access to integrated platform-based technologies and offerings from\n CJ, Epsilon and\nInfluential. A key business solution of\nPublicis Groupe, Publicis Media’s digital-first, data-driven global solutions deliver client value and drive growth in a platform-powered world. It is present in over\n100 countries with over 23,000 employees worldwide. \nOverview\nAbout the Department\nPerformics is the Performance Centre of Excellence within Publicis Groupe, delivering technology, data, and AI-driven marketing solutions for global brands. OneSuite is our unified marketing intelligence and automation platform powering agentic workflows, data processing, analytics services, and channel automation across Search, Social, Programmatic, Commerce, and Measurement.\nBackend 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.\nAbout the Role\nWe 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).\nAs a Senior IC, you will help define service architecture, enforce engineering best practices, and collaborate across multiple charters to ensure OneSuite’s backend systems are scalable, reliable, secure, and performant.\nResponsibilities\nBackend Architecture & System Design\nArchitect distributed backend services and APIs using Python, FastAPI, Node.js, or equivalent frameworks.\nDesign modular, observable, and scalable backend components for orchestration, data services, and platform integrations.\nDefine patterns for microservices, domain boundaries, caching, queuing, resiliency, and error handling.\nBuild robust service-to-service communication mechanisms (REST, gRPC, event-driven patterns).\nImplement secure authentication, authorization, rate limiting, and multi-tenant access controls.\nHands-On Backend Development\nWrite high-quality, maintainable, production-ready code.\nIntegrate with external APIs (marketing platforms, cloud services, internal microservices).\nBuild and maintain CI/CD pipelines and infrastructure-as-code environments.\nLead code reviews, mentor engineers, and ensure high engineering standards.\nContribute to platform SDKs, internal libraries, and backend frameworks used across charters.\nPerformance, Reliability & Observability\nImplement tracing, structured logging, metrics, dashboards, and alerting.\nOptimize services for latency, concurrency, throughput, and cost efficiency.\nEnsure system reliability through automated testing, load testing, error budgets, and resiliency strategies.\nPartner with SRE to define SLIs/SLOs and improve platform-wide reliability.\nCross-Functional Collaboration\nWork closely with Studio, AOE, DFP, Channel, and SRE teams on shared backend designs.\nCollaborate with Product Managers and UX research teams to translate requirements into backend capabilities.\nAlign architecture decisions across charters to ensure consistency and maintainability.\nQualifications\nDemonstrable backend engineering experience, with architectural ownership over services or distributed systems.\nExpertise in Python, FastAPI, Flask, or Node.js and modern backend development patterns.\nStrong understanding of microservices, concurrency, async programming, and event-driven architectures.\nProficiency with SQL and NoSQL databases (PostgreSQL, DynamoDB, Redis, MongoDB).\nHands-on experience with Docker, Kubernetes, and cloud platforms (AWS or GCP).\nStrong CI/CD experience using GitHub Actions, Jenkins, Argo, or similar tools.\nDeep knowledge of observability practices - logs, metrics, traces, performance analysis.\nProven ability to write clean, testable, well-structured production code.\nQualifications - Nice to Have\nExperience with streaming or queuing systems (Kafka, Pub/Sub, SQS).\nFamiliarity with AI/LLM systems (AOE integration), though not required across all charters.\nKnowledge of data engineering patterns or ETL/ELT workflows.\nPrior experience with API gateway architectures, caching layers, or service meshes.\nExposure to cybersecurity best practices and secure service design.\nAdditional Information\nPublicis Groupe has fantastic benefits on offer to all of our employees. In the UK, in addition to the classics, Pension, Life Assurance, Private Medical and Income Protection Plan, we also offer;WORK YOUR WORLD opportunity to work anywhere in the world, where there is a Publicis office, for up to 6 weeks a year.\nREFLECTION DAYS - Two additional days of paid leave to step away from your usual day-to-day work and create time to focus on your well-being and self-care.\nHELP@HAND BENEFITS 24/7 helpline to support you on a personal and professional level. Access to remote GPs, mental health support and CBT. Wellbeing content and lifestyle coaching.\nFAMILY FRIENDLY POLICIES We provide 26 weeks of full pay for the following family milestones: Maternity. Adoption, Surrogacy and Shared Parental Leave.\nFLEXIBLE WORKING, BANK HOLIDAY SWAP & BIRTHDAY DAY OFF You are entitled to an additional day off for your birthday, from your first day of employment.\n GREAT LOCAL DISCOUNTS This includes membership discounts with Soho Friends, local restaurants and retailers in Westfield White City and Television Centre.\nFull details of our benefits will be shared when you join us! Publicis Groupe operates a hybrid working pattern with full time employees being office-based three days during the working week. We are supportive of all candidates and are committed to providing a fair assessment process. If you have any circumstances (such as neurodiversity, physical or mental impairments or a medical condition) that may affect your assessment, please inform your Talent Acquisition Partner. We will discuss possible adjustments to ensure fairness. Rest assured, disclosing this information will not impact your treatment in our process. Please make sure you check out the Publicis Career Page which showcases our Inclusive Benefits and our EAG’s (Employee Action Groups). #LI-KS1","description_format":"text","description_chars":6581,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Hybrid work","Parental leave"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Advertising","Creative Agencies","Digital Marketing"],"lifecycle":[{"event":"open","at":"2026-09-27T16:04:50Z"},{"event":"close","at":"2026-10-07T00:44:17Z"},{"event":"reopen","at":"2026-10-18T13:59:27Z"},{"event":"close","at":"2026-10-22T16:23:35Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/publicisgroupe-senior-backend-engineer","json_url":"https://alion.io/job/publicisgroupe-senior-backend-engineer.json","meta":{"generated_at":"2026-10-25T00:47:16Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":1155,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":46462},"rest":"https://alion.io/mcp/rest/get_company?id=46462"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpublicisgroupe-senior-backend-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fpublicisgroupe-senior-backend-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fpublicisgroupe-senior-backend-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/publicisgroupe-senior-backend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpublicisgroupe-senior-backend-engineer"}]}