Software Engineer III

The role

You will design, build, test and support enterprise applications and secure RESTful APIs for Zinnia's Life & Annuity Exchange platforms. The role is hands-on, individual-contributor work with a global engineering team, and includes integrating Generative AI and LLM features.

What you will do

• Design, develop, test and maintain enterprise applications using C#, .NET and ASP.NET Core.
• Build and enhance secure RESTful APIs supporting the Life & Annuity Exchange platforms.
• Develop and optimize SQL Server queries, stored procedures and data integrations.
• Integrate Generative AI and LLM capabilities into application features and business workflows.
• Develop, deploy and support cloud-hosted applications, primarily in AWS.
• Troubleshoot production issues, improve performance and contribute to system reliability.
• Partner with engineering, product and business stakeholders to turn requirements into working software.
• Take part in Agile development, code reviews, automated testing and continuous improvement.
• Share technical knowledge and mentor other engineers while staying hands-on.

Required qualifications

• 5+ years of professional, hands-on software development experience with C# and Microsoft .NET.
• Strong command of C#/.NET and .NET Core, including MVC, Web API and object-oriented development.
• Demonstrated experience designing, building, testing and maintaining RESTful APIs.
• Strong SQL Server development experience, including complex queries, stored procedures, database design and performance tuning.
• Working knowledge of Kong (API gateway) and Redis in API and caching architectures.
• Experience developing, deploying or supporting cloud-hosted applications, preferably on AWS services such as EC2, S3, Lambda, RDS and CloudWatch.
• Familiarity with design patterns, SOLID principles, source control, automated testing and CI/CD.
• Experience contributing to the full SDLC within Agile/Scrum teams.
• Exposure to integrating Generative AI or LLMs into software applications, such as through API integrations, prompt engineering or AI-powered workflows.
• Strong problem-solving and communication skills, with an interest in collaborating across global teams.
• A demonstrated interest in continuing as a hands-on software developer.

Nice to have

• Experience deploying and supporting LLM-powered functionality in production applications.
• Familiarity with OAuth2, OpenAPI/Swagger and API security practices.
• Frontend experience with React or Angular.
• Experience with enterprise SaaS platforms or insurance technology.
• Familiarity with SOAP/XML integrations or SSRS.
• Experience supporting regulated, high-volume enterprise applications.

Benefits

• Excellent career progression and competitive compensation.
• Health and dental insurance.
• Parental leave.
• 401(k).
• Incentive/bonus opportunity.
• Tuition reimbursement.
• Collaboration with smart, creative professionals.

Before you apply

• Apply through the online application in the careers section of the company website.
• Zinnia is an Equal Opportunity employer.

About the company

Zinnia is a technology platform for life and annuities, serving 100+ carrier clients, 2,500 distributors and partners, and over 2 million policyholders. It reports over $180 billion in assets under administration.