JOB SUMMARY:We are seeking a Software Engineer II - Full-Stack API & Workflow Engineer to build the services and tools that power Ensemble 2.0. This mid-level role works across ASP.NET Core APIs, SQL Server-backed workflows, partner integrations, legacy system analysis, and migration activities supporting the application. You will independently deliver well-scoped features, collaborate with senior engineering and architecture on design questions, and help translate operational requirements into clear, tested, and maintainable software.
REPORTS TO:Ensemble Product Owner
MINIMUM QUALIFICATIONS:- Bachelor's degree in Computer Science, Information Systems, Engineering, or an equivalent combination of education and professional experience.
- 3+ years of professional software development experience building APIs, internal tools, integration features, or business workflow applications.
- Working experience with C#, ASP.NET Core, and modern object-oriented software development practices.
- Experience with SQL and relational databases, including joins, data updates, troubleshooting, and application-to-database interactions; SQL Server experience is strongly relevant.
- Experience building or consuming REST APIs using JSON, HTTP methods and status codes, validation, and authentication.
- Familiarity with Vue, React, Angular, or comparable frontend frameworks. Frontend development is a secondary component of this role.
- Experience writing unit, integration, or API-level automated tests.
- Familiarity with Git, pull requests, code reviews, and iterative delivery practices.
- Ability to deliver well-scoped work independently, raise design questions early, and document technical behavior clearly.
PREFERRED QUALIFICATIONS:- Experience with SQL Server stored procedures, transactions, query performance, and data-integrity constraints.
- Familiarity with Azure DevOps, CI/CD pipelines, Azure App Services, Azure Functions, Service Bus, or related Microsoft platform tooling.
- Experience with Swagger/OpenAPI and test tools such as Playwright, Cypress, Jest, Vitest, xUnit, or comparable frameworks.
- Experience integrating with third-party APIs, webhooks, message-based workflows, CSV files, or scheduled file imports.
- Experience investigating legacy applications, documenting existing system behavior, and supporting incremental migration efforts. Exposure to Node.js, Vue, JavaScript, or TypeScript environments is beneficial but not required.
- Experience supporting data-intensive business systems, integrations, or migration initiatives. Industry-specific experience is a plus but not required.
- Experience building internal support tools or improving application logging and operational visibility.
WORKING CONDITIONS:Remote
COMPENSATION RANGE:The compensation range for this position is 105000 to 125000 annually
BENEFITS:Benefits available for this position are:
- 401(k) (18 or older)
- Paid Sick Leave (Full-Time)
- Paid Sick Leave (Part-Time) - per your State's requirements
- Insurance (Full-Time) - Medical, Dental, Vision Care
- Insurance (Part-Time) - Medical only (30+ hours/week)
- Disability Insurance
- Life Insurance
- Paid Holidays
- Paid Vacation
- Paid Pregnancy & New Parent Leave
- Health Savings Account (HSA) and matching
- Dependent Care Flexible Spending Account (FSA)
- Teledoc
ESSENTIAL JOB FUNCTIONS:- Build and maintain ASP.NET Core API endpoints, request and response models, services, validation rules, and workflow components.
- Develop SQL queries and application data access that support reliable, auditable business workflows.
- Maintain and extend the existing Vue-based administrative and support interfaces as required to support migration objectives.
- Map and process partner payloads for projects, milestones, invoices, credits, remittance activity, and related integration data.
- Write unit, integration, API contract, and regression tests as part of feature delivery.
- Troubleshoot defects using logs, API payloads, database records, test results, and support reports.
- Participate in code reviews and technical design discussions; incorporate feedback and contribute implementation ideas.
- Collaborate with Product and QA to refine requirements, acceptance criteria, edge cases, and test scenarios before development is complete.
- Document API behavior, field mappings, implementation decisions, test cases, and support or troubleshooting procedures.
- Support the phased migration of legacy workflows into centralized, maintainable, and testable services.
