Top Software Engineer Jobs in Edinburgh

Principal Software Engineer responsible for solving complex platform and infrastructure challenges, defining multi-year architecture, and leading foundational initiatives across the software platform. The role focuses on APIs, abstractions, system architecture, scalability, software quality, and engineering velocity. The engineer will identify architectural bottlenecks, drive initiatives from design through deployment, serve as a technical escalation point, build consensus across teams, and mentor engineers.

Implement and ship Storage Encryption Everywhere in Firefox’s Gecko engine. Responsibilities include schema migrations, encrypted data storage, integration testing, Web Platform Tests, Gecko tests, code review, specification clarification, release shepherding, and fixing correctness, performance, and regression issues across Nightly, Beta, and Release channels.

Diagnose and verify long-tail Firefox WebCompat bugs, reproduce and triage site-breakage reports, write WebCompat interventions, and implement simple AI-assisted fixes. The role converts reported breakages into actionable or resolved bugs and requires strong HTML, CSS, JavaScript, browser DevTools, and cross-browser debugging skills.

Develop and maintain high-quality Java and AWS software applications. Design, build, test, and troubleshoot scalable, secure, high-performance systems across multiple application layers. Contribute to architecture, technical decisions, estimation, product planning, and requirements creation. Mentor junior engineers and collaborate with technical and non-technical stakeholders. Experience with CI/CD, cloud platforms, data storage, and Java BPMN implementations is valuable.

Lead the technical direction and architecture of the Foundations platform team, owning authentication, authorization, SSO, secrets management, tenancy, and core platform services. Design APIs, drive services through launch, make technical decisions, establish engineering standards, and mentor engineers without formal management authority. Partner with engineering and product leaders to align execution with priorities.

Develop and maintain scalable, reliable software across frontend and backend platforms. Lead technical design and delivery, collaborate with product and business teams, improve testing and CI/CD practices, review code, and mentor junior developers. Build and maintain AI-powered product features while addressing model evaluation, security, moderation, consistency, and fallback strategies. Apply strong engineering fundamentals across system design, performance optimization, debugging, databases, and cross-platform development.

Senior backend engineer responsible for designing, coding, and operating highly available distributed identity systems for Affirm’s international markets. The role includes owning quarterly goals, delivering scalable features in Kotlin and Python, collaborating across product and engineering teams, improving code and design standards, monitoring system availability, resolving production issues, mentoring engineers, and supporting technical planning and hiring.

Design, build, and operate scalable backend services for pricing and promotions across multiple customer channels. Develop Java or Kotlin microservices, Kafka-based event-driven systems, GraphQL and REST APIs, and resilient low-latency data solutions using MongoDB, Redis, and PostgreSQL. Own complex backend features throughout their lifecycle while supporting API governance, reliability, performance, and reusable platform capabilities.

Build and operate secure, scalable authentication, authorization, and identity services serving millions of customers and colleagues. Responsibilities include end-to-end feature ownership, backend API development, solution design, testing, deployment, monitoring, production support, technical direction, code reviews, and engineering best-practice development. The role requires strong distributed systems, cloud-native engineering, DevOps, CI/CD, and identity standards experience.

Design, develop, test, deploy, and operate backend software supporting contact centre services. Build Java APIs, integrations, data flows, and event-driven solutions connecting platforms such as Zendesk, Twilio, Azure, and Google. Develop customer self-service and FAQ capabilities, collaborate with cross-functional stakeholders, and own solutions throughout the delivery lifecycle while maintaining security, performance, reliability, and maintainability.

Build and evolve scalable Python services powering M&S paid media and personalisation campaigns across web, mobile, email, push, and paid social. Develop integrations for audience activation, bidding, and budget management; implement experimentation, attribution, and measurement frameworks; and use large-scale data to improve marketing performance, media efficiency, and customer outcomes.

Design and evolve backend-heavy experimentation platform capabilities, including APIs, services, automation pipelines, and developer tooling. Set technical direction, build self-service tools, operate reliable distributed systems on Azure, and establish observability and safe-change practices. Partner with product and engineering teams, document systems and standards, and mentor engineers across experience levels.

Design, develop, test, deploy, and support scalable order management capabilities across checkout, fulfilment, returns, amendments, and cancellations. Own features end to end while improving architecture, integrations, automation, observability, resilience, monitoring, security, and operational support. Collaborate with product, engineering, and fulfilment stakeholders to modernize enterprise systems and improve delivery outcomes.

Lead design and delivery of scalable, secure payment platform capabilities. Own reliability, performance and resilience, drive DevOps/CI-CD, observability and incident management, and mentor engineers to improve platform engineering practices.

Provides technical leadership for hospitality technology platforms, defining architecture and technical strategy across multiple teams. Designs scalable distributed systems, reusable platforms, tooling, and services while improving resilience, observability, incident management, and performance. Partners with architects, vendors, engineers, and stakeholders on technology decisions and investment priorities. Mentors engineers, promotes engineering excellence, and contributes to recruitment and technical community development.

Build, maintain, and release reliable cloud software for the Customer Data Platform. Lead complex feature delivery, make architectural decisions, improve code quality, testing, observability, security, and operational reliability. Collaborate with Product, Design, and adjacent engineering teams, participate in on-call support, contribute to planning and OKRs, and mentor engineers through pairing, reviews, and technical guidance.

Lead technical strategy and software engineering excellence across customer platform systems supporting warehouse operations. Design and launch complex, high-impact solutions; promote clean architecture, DevOps, security, observability, reliability, performance engineering, and testing practices. Influence technology and product investment decisions, mentor senior engineers, improve engineering processes, support recruitment and outreach, and foster innovation, autonomy, and engineering maturity across cross-functional teams.

Build and launch scalable backend features and services for restaurant partners. Own projects end to end, collaborate with product and engineering teams, identify high-impact technical opportunities, and maintain reliable production systems through testing, monitoring, logging, and DevOps practices. The role uses Python and Flask primarily, with flexibility to work in Go, Ruby, and other technologies on a distributed remote team.

Build and maintain customer-facing features, internal tools, and platform improvements for a Rails-based self-storage operating system. Responsibilities include full feature ownership, collaborating with Product, writing tests, debugging production issues, improving stability and performance, monitoring applications, participating in code reviews, and contributing to technical discussions. The role requires independent work on defined tasks and collaboration within a small product engineering team.

Develops full-stack features for live operational metrics, including backend services, APIs, and real-time frontend dashboards. Responsibilities include improving system scalability and stability, integrating business logic, troubleshooting software, documenting technical changes, and collaborating with stakeholders. Requires frontend JavaScript or TypeScript experience and backend .NET development with C# and ASP.NET. The role is primarily remote with occasional Bristol or London office visits.

Leads the team building the SRE function and owns its technical vision, platform capabilities, reusable tooling, pipelines, frameworks, and developer experience. Manages senior engineering staff, drives recruitment and retention, aligns technical strategy, oversees reliability and operational excellence, partners with vendors, and contributes hands-on code. The role requires strong SRE, cloud, software architecture, DevOps, testing, reliability engineering, and people leadership experience.

Leads technical direction and hands-on execution for major products and systems. Designs scalable backend, frontend, API, database, and infrastructure solutions; writes code; drives architecture decisions; solves production issues; improves engineering quality, reliability, security, testing, and observability; and mentors engineers across teams.

Lead technical direction and hands-on execution for major products, systems, and engineering initiatives. Design scalable and reliable backend, frontend, API, database, and infrastructure solutions; write code; make architecture trade-offs; solve production issues; and improve testing, security, observability, and development practices. The role also leads critical initiatives, mentors engineers, and translates ambiguous product challenges into clear technical plans.

Own technical direction and execution for major products and systems. Design scalable, reliable architectures across backend, frontend, APIs, databases, and infrastructure; write production code; lead architecture decisions; solve complex production problems; improve engineering quality, testing, security, and observability; drive critical initiatives; and mentor engineers across teams.

Manage and scale AWS EKS Kubernetes clusters, automate infrastructure with Terraform or Pulumi, optimize system performance, maintain blockchain nodes, scale databases handling terabytes of data, and improve reliability through monitoring and observability. Collaborate with backend and product teams to support feature development and platform scalability.