RESTful API Developer - BPMN

HSA Bank, a division of Webster Bank, N.A.•Remote-Wisconsin, WI

About The Position

At HSA Bank, we’re working toward a world where everyone is empowered to save for a healthy future. Our offerings in the healthcare savings space drive down healthcare costs, increase access, and assist with decision-making for consumers, health plans, partners, and advisors. The team is seeking a highly skilled Application Developer with proven experience designing and building RESTful APIs using ASP.NET Core (C#) in Visual Studio, as well as experience working within microservices architectures. This role supports ongoing Process Automation initiatives and offers opportunities to design and implement Intelligent Business Process Management (iBPM) solutions using the Bizagi Business Process Management Suite.

Requirements

Proficiency with Visual Studio and C#.
Experience with Bizagi, or equivalent low‑code platforms such as Appian, Salesforce, ServiceNow, or Microsoft Dynamics CRM (Bizagi experience may be substituted).
Experience in process identification, modeling, and gap analysis.
Strong understanding of data modeling and data design concepts and methodologies.
Knowledge of business‑oriented software architecture and system integration principles.
Experience integrating systems via web services and custom API interfaces.
Familiarity with BPMN notation.
Demonstrated logical, structured, analytical, and object‑oriented thinking.
Knowledge of Lean Six Sigma principles and/or continuous improvement practices.
Proven ability to work effectively in cross‑functional teams.
Strong interpersonal and communication skills.

Nice To Haves

Experience designing and building RESTful APIs using ASP.NET Core (C#) in Visual Studio.
Experience working within microservices architectures.
Experience designing and implementing Intelligent Business Process Management (iBPM) solutions using the Bizagi Business Process Management Suite.

Responsibilities

Design, develop, enhance, and implement C# ASP.NET Core RESTful APIs.
Configure, debug, validate, and catalog new and enhanced APIs, including interface components, for assigned development projects.
Apply strong knowledge of REST fundamentals and API design best practices.
Utilize modern API design patterns to create scalable, maintainable solutions.
Translate business requirements and logical domain models into well-structured APIs aligned with enterprise business vision.
Collaborate with the Integration team to architect and support both cloud-based and on‑premises integrations.
Work with SQL Server and related technologies to design, create, and support required data structures.
Participate in solution design efforts alongside the Integration team.
Create, maintain, version, and support APIs throughout their lifecycle.
Utilize and evaluate data transformation technologies, including XML, JSON, CSV, and SQL.
Support versioning and ongoing maintenance efforts in collaboration with the Business Infrastructure Manager and Senior Developer.
Architect solutions to provide reliable, consumable data to the Process Automation platform.
Design and implement error logging, monitoring, and reporting solutions to support business operations.
Prepare and maintain required technical and design documentation.