{"id":4288243,"url":"https://alion.io/job/admiral-group-senior-software-engineer","title":"Senior Software Engineer","company":{"id":1861794,"name":"Admiral Group","domain":"admiralgroup.co.uk","url":"https://alion.io/company/admiralgroup-co-uk","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":{"grade":"A","score":86,"open_postings":4,"ghost_share":0,"stale_share":0.25,"repost_share":0.5,"time_to_fill_p50_days":22,"computed_at":"2026-11-14T05:58:10Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"GCP","optional":false},{"name":"Java","optional":false},{"name":"Kotlin","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Python","optional":false},{"name":"Agentic Workflows","optional":true},{"name":"Apache Kafka","optional":true},{"name":"Docker","optional":true},{"name":"FastAPI","optional":true},{"name":"Ktor","optional":true},{"name":"Kubernetes","optional":true},{"name":"LLM","optional":true},{"name":"Micronaut","optional":true},{"name":"Microsoft Teams","optional":true},{"name":"Rest API","optional":true},{"name":"Spring Boot","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-11-13T11:08:00Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-14T18:31:26Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"We are seeking a Senior Software Engineer to play a key role in designing, building, and scaling the backend platform that powers our mobile applications. This is a hands-on, high-impact role where you'll drive the technical direction of backend services, APIs, cloud infrastructure, and engineering practices that enable teams to deliver exceptional customer experiences.\nYou'll work within a cross-functional product environment, collaborating closely with Mobile Engineers, Product, Platform Engineering, and Security teams to build reliable, scalable, and maintainable systems across AWS and GCP.\nThis role requires deep technical expertise across backend development, cloud-native architectures, and modern software engineering practices. We're also heavily invested in Agentic Engineering, with AI-assisted development workflows and Claude Code embedded within our Product Development Lifecycle (PDLC) to accelerate delivery while maintaining high engineering standards.\nKey Responsibilities\nTechnical Ownership & Architecture\nOwn and evolve backend services and platform architecture, ensuring scalability, resilience, security, and maintainability.\nDesign and deliver high-performance APIs and distributed systems that power customer-facing mobile applications.\nMake pragmatic technical decisions, balancing customer outcomes, delivery speed, operational excellence, and long-term sustainability.\nDrive engineering best practices across architecture, system design, testing, observability, and code quality.\nContribute to the evolution of our backend platform strategy across both AWS and GCP environments.\nEngineering Excellence\nDesign, build, and maintain backend services primarily using Kotlin, Python and Java.\nDeliver clean, well-tested, maintainable code using modern software engineering practices.\nLead and contribute to code reviews, maintaining a high engineering bar across the team.\nLeverage Agentic Engineering practices and Claude Code to improve developer productivity, software quality, and delivery speed.\nChampion test automation, continuous integration, and developer experience improvements.\nContinuously improve service performance, reliability, security, and operational efficiency.\nCloud Platform & Infrastructure\nDesign, build, and operate cloud-native solutions across AWS and GCP.\nWork closely with Platform Engineering teams to evolve infrastructure, environments, and deployment capabilities.\nContribute to infrastructure-as-code, platform automation, and environment provisioning.\nSupport and optimise CI/CD pipelines to enable rapid, safe, and repeatable software delivery.\nEnsure systems have robust monitoring, alerting, observability, and operational controls.\nDelivery & Collaboration\nPartner with Product, Mobile Engineering, and Design teams to define requirements and deliver technical solutions.\nCollaborate with iOS and Android engineers to design scalable APIs, integrations, and backend capabilities.\nParticipate in Agile delivery processes, ensuring predictable and high-quality outcomes.\nProvide visibility on technical risks, dependencies, and delivery progress.\nWork closely with Security teams to ensure secure-by-design engineering practices.\nLeadership & Mentorship\nMentor and support engineers across backend development and modern engineering practices.\nLead by example through high-quality delivery, technical excellence, and strong ownership.\nHelp shape engineering culture, standards, and ways of working.\nContribute to platform-level architectural decisions and technical strategy.\nChampion adoption of Agentic Engineering practices across the engineering organisation.\nContinuous Improvement\nIdentify and address technical debt, architectural weaknesses, and operational bottlenecks.\nImprove development workflows, tooling, platform capabilities, and developer experience.\nEvaluate emerging technologies, AI-assisted engineering approaches, and cloud capabilities.\nStay current with backend engineering, cloud-native technologies, platform engineering, and Agentic Engineering trends.\nContribute to the long-term evolution of our backend platform and engineering capability.\nEssential Skills Required\nProven experience building and scaling backend systems in production environments.\nStrong experience developing backend services using Kotlin, Python and/or Java.\nExperience designing and operating cloud-native solutions in AWS and GCP.\nHands-on experience with CI/CD pipelines, DevOps practices, and modern software delivery processes.\nExperience designing and building APIs, distributed systems, and event-driven architectures.\nExperience operating services throughout their full lifecycle, from design and development through to production support.\nTrack record of operating effectively in fast-paced, product-focused engineering environments.\nExperience using modern AI-assisted development tooling and engineering workflows is highly desirable.\nTechnical Skills\nEssential\nStrong proficiency in Python, Java, and/or Kotlin.\nExperience with modern backend frameworks such as Spring Boot, FastAPI, Micronaut, Ktor, or similar.\nExperience designing and building RESTful APIs and distributed systems.\nStrong understanding of AWS and GCP cloud platforms.\nExperience with infrastructure-as-code tools such as Terraform.\nStrong understanding of CI/CD pipelines and deployment strategies.\nExperience with observability, including logging, monitoring, alerting, and tracing.\nExperience with relational and NoSQL databases.\nStrong debugging, troubleshooting, and performance optimisation skills.\nExperience leveraging AI-assisted development tooling, including Claude Code or equivalent agentic development platforms.\nDesirable\nKubernetes and containerisation technologies such as Docker.\nEvent-driven architectures using Kafka, SNS/SQS, Pub/Sub, or similar technologies.\nMulti-cloud platform experience.\nPlatform Engineering and Internal Developer Platform (IDP) experience.\nExperience implementing LLM-powered applications, AI agents, and agentic workflows.\nUnderstanding of mobile backend architectures and mobile API optimisation.\nExperience with security, compliance, and cloud governance best practices.\nInterview Process\n1st stage: 30 minute Microsoft Teams interview.\n2nd stage: 1.5 hours technical assessment at our Cardiff office.\n Admiral: Where You Can\nWe take pride in being a diverse and inclusive business. It's a place where you can Be You, and show up as you are. We’re committed to fostering a people-first culture where everyone is accepted, supported, and empowered to be brilliant. You can, Grow And Progress at a pace and direction that suits you, Make A Difference for our customers and each other, and Share in Our Future with all colleagues eligible for up to £3,600 of free shares each year after one year of service.\nEveryone receives 33 days holiday (including bank holidays) when they join us, increasing the longer you stay with us, up to a maximum of 38 days (including bank holidays). You also have the option to buy or sell up to an additional five days of annual leave.\nWe’re proud of our people-first culture. In fact, we've been recognised as a Great Place to Work for Women, a Great Place to Work for Wellbeing, and an overall Great Place to Work for over 25 years! We’re fully committed to making sure your progression is not slowed or halted by barriers related to race, gender, age, sexuality or any of the protected characteristics.\nOur fantastic benefits make sure our colleagues have a great work-life balance; You can view some of our other key benefits here.\nDisability Confident Leader\nAs a Disability Confident Leader, for candidates with a disability or long-term health condition, that opt into the Disability Confident scheme, we’ll invite a fair and proportionate number of applicants that meet the essential requirements of the role to the first stage of our selection process.\nIf you need any adjustments or support with your application or during the recruitment process, just let us know. Please do email us. 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