Top Software Engineer Jobs in Edinburgh

The Software Engineer will design and maintain payment processing systems, mentor other engineers, and ensure security in client transactions within the crypto ecosystem.

Develop and maintain Unity’s Web runtime, adding features, fixing issues, and optimizing download size, load time, startup performance, and native code. Work across C++, C#, and JavaScript while profiling and debugging browser-based runtime behavior. Collaborate with distributed teams, investigate developer-reported issues, and track evolving browser capabilities. The role may also involve WebAssembly, Emscripten, LLVM, WebGL, real-time 3D, and compression techniques.

Lead re-architecture and modernization of a legacy C++ execution kernel, diagnose and resolve memory/concurrency/performance issues in production, drive technical direction, mentor peers, and collaborate across teams to evolve the platform toward a more open, service-oriented design.

Join the Session Management backend team to build reliable, scalable services and APIs. Write maintainable Java backend code, test changes, participate in design and code reviews, investigate bugs, improve observability and performance, and keep documentation current while learning about distributed systems, databases, caching and cloud infrastructure.

Build and optimize high-performance, event-driven microservices for marketing systems. Design scalable architectures, write secure and well-tested backend Java code, work with cloud infrastructure (AWS), streaming (SNS/SQS or Kafka), databases, and container orchestration. Contribute to design, code reviews, on-call rotation, and cross-team collaboration to deliver personalized marketing experiences at scale.

Build and maintain scalable, fault-tolerant backend systems and APIs in Java. Participate in design, code reviews, testing, and production release processes. Collaborate with cross-functional teams, troubleshoot defects, document solutions, and ensure high code quality while supporting regulatory-focused internal tooling.

Design and implement anti-cheat, anti-piracy, and anti-tamper solutions for Rockstar titles. Research protections, debug obfuscation/anti-tamper issues, profile performance and memory, follow SDLC, and test cross-platform security features.

Build and maintain Paloma's cloud-native full‑stack EPR and AI‑powered patient pathway. Write clean C#/TypeScript code, develop React single‑page interfaces, integrate REST APIs, deploy containerised apps on AWS/GCP, design event‑driven systems, manage cloud SQL databases, automate user journeys, participate in code reviews, and explore AI/agent applications for process automation and assistance.

Build internal AI enablement tools, workflows, and guardrails to help engineers use coding agents safely and productively. Evaluate models and agents, partner with teams to apply AI, track adoption and impact, and provide documentation, training, and advocacy across the engineering organization.

Lead and deliver full‑stack features for international direct‑to‑consumer products. Collaborate with product, design, and analytics; own operations, metrics, on‑call, code quality, and talent development while driving technical design and execution.

Design, build and maintain backend services for multiplayer games. Implement distributed systems, CI/CD, containerised microservices, databases (SQL/NoSQL), cloud infrastructure, and documentation. Collaborate on estimates, support teammates, and ensure high-quality deployments and operational standards.

Full-stack AI/ML Software Engineer to build HealthTech SaaS microservices, implement and integrate ML solutions, write high-quality code, author documentation, perform code reviews, and act as an SME on services and systems.

The Senior Back-End Software Engineer designs, develops, and maintains scalable backend systems while taking ownership of the software development lifecycle.

As a Software Engineer at Canonical, you will design, build, and ship software, improve packaging and distribution processes, and mentor colleagues while contributing to open source projects.

The Junior Ubuntu Software Engineer will design, build, and ship software, focusing on quality and resilience, while engaging with the open source community.

Lead Mark43's AI-enabled engineering initiative by designing and orchestrating multi-agent systems that plan, write, review, test, and deploy software. Write prompts, scaffolding, and tool integrations (VCS, test runners, internal APIs), evaluate agent performance, prototype LLM-based workflows, collaborate cross-functionally, mentor teammates, and contribute to on-call rotations.

Develop, own and deliver commercial .NET software features; contribute to architecture, mentor junior developers, provide 3rd-line support, and ensure quality through testing and performance tuning of database-backed systems.

Design and build GitLab Duo CLI features in TypeScript, shape AI-assisted developer experiences, improve CLI reliability, observability, and performance, collaborate across Developer Clients, and provide technical leadership and mentorship.

Build and maintain the control planes, automation, and observability for a global fleet of machines. Develop production-quality Go services for provisioning, health checks, upgrades, and incident remediation. Architect high-throughput, low-latency networking, improve utilization and power-to-performance, and collaborate with product and platform teams on storage-aware scheduling and developer-facing features.

Design, build, and maintain backend API and database services for a cloud PBX platform. Drive architecture, performance optimization, debugging, CI/CD and test automation, and collaborate with QA. Mentor peers and raise engineering standards while safely evolving high-load, networked systems.

As a Software Engineer, you will develop software models for hardware, enhance simulation tools, and support regression systems, improving developer workflows and diagnostics.

9-month full-time software engineering placement contributing to product development: implement features, improve scalability, performance, maintainability and internationalisation, participate across full feature lifecycle, learn from a mentor, and work across the stack (frontend, backend, testing, Azure). Ideal for someone starting a software career.

Build and maintain Clojure-based software to accelerate medical device regulatory approvals. Work cross-functionally to deliver high-quality safety assessments, ship features quickly, and support product growth. Remote-first, collaborative environment with occasional in-person weeks in London.

Build and operate Grafana Labs' bare-metal platform: provision storage, networking, and Kubernetes clusters; manage cluster networking, scheduling, autoscaling; maintain Crossplane compositions and Terraform modules; collaborate with application teams and participate in on-call rotation to ensure reliable, scalable platform operations.

Work as part of an agile team to design, develop, document and test frontend features for a mission-critical call-taking and dispatch platform. Build high-quality JavaScript/React/TypeScript user interfaces, collaborate with product and test engineers, follow modern development practices (SOLID, Git, pull requests), and support an expansion product while occasionally travelling to UK offices.