Senior Developer

Reporting to the VP of Product & Engineering, you'll join a small, experienced engineering team responsible for evolving AppyWay's backend platform and technical architecture.

You'll help build the next generation of APIs, cloud services and data pipelines that power our kerbside platform, enabling us to onboard new datasets, support new products and scale internationally.

Working alongside senior engineers and product leadership, you'll contribute to the evolution of our platform while developing your own technical expertise across cloud infrastructure, AI, geospatial data and developer tooling.

You'll be responsible for:

• Designing and building scalable backend services and APIs using C# .NET.
• Developing platform capabilities that support kerbside, parking, payments, mapping and mobility products.
• Building data ingestion and transformation pipelines that make it easier to onboard and standardise new datasets.
• Developing reusable SDKs, shared libraries and platform components that improve consistency across our products.
• Modernising our cloud infrastructure and contributing to platform migrations and technology upgrades.
• Designing and supporting cloud-native services hosted within Microsoft Azure.
• Implementing Infrastructure as Code, CI/CD pipelines and engineering automation to improve reliability and developer productivity.
• Contributing to AI-powered workflows including document processing, data extraction and intelligent automation.
• Working with the Security Manager to implement technical controls supporting ISO 27001 and Cyber Essentials.
• Collaborating with Product and Engineering to translate customer problems into scalable technical solutions.
• Contributing to architectural discussions, technical design and engineering best practices.
• Supporting production services by improving reliability, observability, performance and operational resilience.
• Mentoring other engineers through code reviews and knowledge sharing.

Essential

• 5+ years' experience building backend applications using C# .NET.
• Experience designing and developing REST APIs.
• Experience working with Microsoft Azure.
• Experience building and supporting production cloud applications.
• Good understanding of distributed systems and modern software architecture.
• Experience working with SQL databases and data processing.
• Experience with CI/CD pipelines and modern software delivery practices.
• Comfortable working across backend services, cloud infrastructure and APIs.
• Strong problem-solving skills and a pragmatic engineering mindset.
• Excellent communication and collaboration skills.
• Right to work in the United Kingdom

Desirable

Experience in one or more of the following would be beneficial:

• Azure Functions, Container Apps or App Services.
• Infrastructure as Code (Pulumi, Terraform, Bicep or similar).
• Event-driven architecture and messaging technologies.
• Elasticsearch or other search technologies.
• AI technologies including LLMs, document processing or agentic workflows.
• Authentication and identity platforms such as Auth0.
• Geospatial technologies including GeoJSON, HERE, Mapbox or QGIS.
• Stripe or payment platforms.
• OpenAPI, SDK generation or developer platform tooling.
• ISO 27001, Cyber Essentials or secure software development practices.

Our tech stack

(This isn't a shopping list-these are the tech and patterns we use. We'd love to hear from people with some of these, or who are excited to pick them up and suggest alternatives.)

• C# .NET
• Aurelia, TypeScript
• Azure infrastructure (App Services, Function Apps, Container Apps, etc.)
• DDD, CQRS, Event-Driven Architecture
• SQL Server, PostgreSQL, and Azure Storage
• Service Bus
• Elasticsearch
• Redis
• Git, Octopus Deploy
• Pulumi for IaC
• Microservices, SOA
• Power BI
• Time-series data processing
• QGIS and related GIS/GeoJSON tools

Pulled from the full job description Employee discount Company pension Discounted gym membership, What you would get

• Competitive salary of up to £80,000-£90,000 depending on experience
• 25 days' holiday plus all UK bank holidays, and accrue additional days each year up to 30 total
• Hybrid flexible working (fully remote options) with one day a week in our Covent Garden office; open to applicants based anywhere in the UK
• "Work from Anywhere" for up to 2 weeks each quarter
• Share option scheme-experience true ownership
• Enhanced company pension scheme (Royal London) with matched contributions
• Annual Cost of Living review to help protect your compensation
• Death in Service insurance cover
• Access to GP consultations, nutritionists, dental advice, and counselling on demand
• PerkBox: hundreds of perks, discounts, weekly freebies, cashback offers, and discounted gym memberships

• On-site perks: barista coffee and an end-of-day beverage at our bar

• Choose your own laptop (PC or Mac) and accessories
• Clear growth framework with learning & development support
• Inclusive family leave options, nursing rooms, and a dedicated return-to-work plan
• Regular social events, group trips, and activities

AppyWay is the industry-leading SaaS solution decarbonising cities by empowering local authorities to digitally manage their kerbside and share kerbside data with fleets and drivers. Our journey began with AppyParking, an app born from the frustration of finding and understanding parking on the streets of London. During the app's creation, it was clear that cities lacked shareable, machine-readable, standardised parking restriction data. So we built the UK's largest set of standardised kerbside data, in turn discovering the untapped potential beneath everyone's feet. Today, we're Europe's leading intelligent kerbside platform, helping cities and drivers optimise operations and transition to net zero by uniting parking/loading maps, occupancy data, and cashless payments. Our impressive client roster includes local authorities such as Edinburgh, Southwark, Lambeth, Haringey, Harrogate, Cambridgeshire, Cornwall, Dorset, Dublin and, more recently across the pond, New York City. Additionally, our apps and API are trusted by tens of thousands of drivers and fleets including Blue Badge innovators Motability Operations. We are proud to have the support of top investors, including Hyundai Motor Company, Aviva Ventures, Mastercard and Esri. To date, we have raised over £20 million in funding, allowing us to continue building something big from the ground up. If you're passionate about tangible solutions to help decarbonise the world, then AppyWay is the perfect place for you. Come and make your mark on a company you can call your own! What you will be doing