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C# API Integration Developer

  • Salary: competitive salary
  • Sector: Tech
  • Sub-sector: eCommerce
  • Type: Permanent

job description

C# API Integration Developer

Are you excited about e-commerce, digital marketing, and new technologies? Our client is driven by the core belief that getting products in front of online buyers across digital sales channels should just be easy. It's why they have built a complete Product Marketing Platform that empowers digital and e-commerce teams at Retailers, Brands and their Digital Agencies, to drastically enhance their digital revenues through robust data feeds. Their Platform currently helps +150 leading retailers and brands, such as Missguided, Boohoo, Pretty Little Thing, Marks & Spencer, Next, JD Sports and many more, to seamlessly grow online across 1,400+ digital sales channels. They will be someone you regularly buy from so you may already have some great insight to bring to the table. As a profitable, fast growth, VC funded multinational business, they are always looking to expand they team. Their values celebrate their team diversities, innovation, and spirit, to empower them in driving their performance together. They recognise the benefits of a flexible hybrid working policy and they offer their teams a healthy balance of remote working and time in their London office when needed. 


 You will be joining a highly productive development team, developing integrations that enable client acquisition and retention. You will be part of a growing development team in a friendly and agile environment, taking part in daily scrum and review meetings; during each Sprint the successful candidate will be responsible for the development and implementation of existing and new integrations with partners and merchants, working closely with the Team Lead and the Technical Business Analyst this is a chance to participate in projects that involve cloud-based technologies and microservices


  • Reports to the API Integration Team Lead
  • Works closely with the Tech Lead, Business Analysts and Product Managers to accurately interpret technical specifications, exploring solutions, providing estimates of development effort and refinement of user stories
  • Develops new integration solutions and unit tests for partners and merchants with Azure Cloud services and Microservices architecture, exporting data from one system to another, transforming data where needed and helps to maintain existing solutions
  • Develops and helps incorporating automated acceptance tests to ensure the solution is working as required
  • Collaborates with members of the QA Team to ensure solutions are tested and maintained to a high standard
  • Takes part in code reviews
  • Achieves an understanding of all services and helps with problem fixes
  • Troubleshoots 3rd level support issues in production and identifies root causes
  • Participates in sharing of knowledge with colleagues, group activities like demos, tech specs meetings and provides constructive feedback


  • Bachelor’s degree preferred, or equivalent combination of education, training, and Experience
  • Proven experience integrating with third-party API’s
  • Strong knowledge of RESTful web services and API Security (OAuth)
  • Solid knowledge of software engineering best practices: object-oriented design and implementation, SOLID principles, Agile and Scrum
  • Minimum 5 years’ experience in C#
  • Minimum 2 years’ experience in T-SQL
  • Understanding and working knowledge of JSON, XML, DOM
  • Demonstrable experience with Git
  • Keen desire to learn and share knowledge


  • Experience with Microservice architecture, Message Queuing, Cloud technologies
  • Experience documenting in tools such as Postman, Swagger, Lucidchart
  • Experience with DevOps
  • Experience with Entity Framework
  • Exposure to TDD
  • Knowledge of GraphQL


  • 25 days holiday per year, increasing by one day for each additional year of service, to a maximum of 28 days
  • Flexible working between home and office 1 day every fortnightly in London Office
  • Company pension scheme
  • Vitality Healthcare/Half Price Gym membership/Free Starbucks and more….
  • Monthly get-togethers/socials with fun activities like go-karting, virtual cricket…
  • When you are in the office - breakfast/fruit, Friday drinks from 4pm
  • Cycle to work program


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Ref: Job ID: 32635

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