Senior Software Developer at Once For All
Once For All is a high-growth, cloud-based SaaS subscription business helping customers manage supply chain governance, risk, and compliance. We serve 250k+ customers across the UK in 20+ sectors, including construction, transport, retail, hospitality, education, property management, manufacturing, and government.
About the Role
Join our rapidly growing Development team (10 Agile SCRUM teams) building and scaling a suite of microservices-based applications on Microsoft Azure. You’ll play a critical role in the design, implementation, and innovation of Once For All’s next-generation Supplier Risk Assessment platform, ensuring scalability, security, and reliability.
Responsibilities
* Design, build, and maintain cloud-native microservices and APIs using C#, .NET, and SQL Server.
* Lead the design and implementation of high-availability, high-scalability systems hosted on Azure.
* Collaborate with product owners and stakeholders to translate requirements into technical solutions.
* Champion clean code, object‑oriented design, and software engineering best practices.
* Contribute to a DevOps culture: CI/CD pipelines, Git workflows, Docker, and Kubernetes.
* Mentor and support developers through code reviews and technical guidance.
* Stay ahead of emerging technologies (Cloud, Open Source, DevOps, API economy, Big Data) and bring innovation to the team.
Qualifications
* 5+ years commercial development experience (Computer Science/Engineering degree preferred).
Required Skills
* Strong C# and SQL Server expertise with a proven track record of delivering robust applications.
* Solid experience with REST APIs and modern API design.
* Proven background in scalable system design and high‑availability architectures.
* Hands‑on experience with Microsoft Azure and cloud‑based infrastructure.
* Strong problem‑solving and analytical skills with the ability to deliver under Agile methodologies.
* Deep knowledge of object‑oriented programming, microservices, and message bus technologies.
* Familiarity with DevOps practices: Git, build pipelines, Docker, Kubernetes.
What We Offer
* Health & Wellbeing: Private Medical Insurance or wellness fund, 24/7 Employee Assistance Programme.
* Growth & Development: Ongoing CPD, team off‑sites, and company events.
Job Details
* Seniority level: Mid‑Senior level
* Employment type: Full‑time
* Job function: Information Technology
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