Senior Software Engineer, Partner API – .NET

This is a fully remote position, open to applicants in Alabama, +18 more states.

📋 Description

• Take ownership of the Partner API contract from start to finish, encompassing resource design, versioning, deprecation, and maintaining backward compatibility across releases.

• Create clear and consistent API resources.

• Develop the translation layer that ensures the public contract remains stable as internal systems progress.

• Collaborate directly with partners’ engineering teams to facilitate integrations.

• Deliver tailored work for partners when integrations necessitate it.

• Design error responses, idempotency, authentication mechanisms, and rate limiting protocols.

• Implement usage metrics to track how partners utilize the API.

• Ensure the OpenAPI specification and developer documentation are precise and up-to-date.

• Maintain contract tests to identify breaking changes before partners experience them.

• Write and review production C# code.

• Collaborate with QA and product teams.

• Manage software delivery through the release process.

⛳️ Requirements

• Over 7 years of experience as a backend developer, including at least 3 years focused on building or maintaining a partner-facing or public API.

• A Bachelor’s degree in Computer Science, Computer Engineering, or equivalent professional experience is mandatory.

• Designed, launched, and operated a REST API that is utilized by external developers in a production environment.

• Ensured backward compatibility across API versions.

• Experience with contract-first approaches using OpenAPI, schema evolution, deprecation policies, and changelogs.

• Strong understanding of API security and multi-tenancy, including API keys or OAuth 2.0 client credentials, scopes, tenant isolation, and quotas.

• Proven experience in presenting a clear public contract in front of a complex internal domain.

• Excellent technical writing skills for partner developers in documentation and email communications.

• Familiarity with AI coding agents.

• Proficient in C#, ASP.NET Core, and SQL Server (MSSQL).

• Experience working with Azure.

• Proficient in Microsoft Office applications.

• Knowledge of video and chat technologies, including MS Teams and Slack.

• Access to reliable high-speed internet connectivity.

• A designated quiet workspace at home.

• Must reside in one of the following states: AL, AZ, FL, GA, KY, LA, MA, MO, NC, NJ, NY, OH, OR, PA, SC, TX, UT, VA, WA, or WI.

• Sponsorship is not available.

🏝️ Benefits

• Medical, Dental, and Vision coverage.

• Short- and Long-Term Disability (Company Paid).

• Voluntary Long-Term Disability options.

• Company Paid Employee Life & AD&D insurance.

• Voluntary coverage for Employee, Spouse, and Child Life & AD&D.

• Healthcare, Dependent Care, and Transit FSA, alongside a Healthcare Savings Account (HSA).

• 401K with generous matching contributions and no vesting schedule.

• 20 days of Paid Time Off (PTO) annually (prorated based on hire date).

• Company Paid Holidays.

• 2 “Choose Your Own Holidays”.