Senior Software Engineer I

About Zinnia

Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders.

Job Summary

We are seeking a highly skilled Senior Software Engineer with full-stack experience — strong in back-end and API development, while also comfortable contributing to front-end development when needed. In this role, you will design, develop, and maintain scalable, secure, and high-performance software systems that power Zinnia’s enterprise platforms.

Key Responsibilities

• Design, develop, document, and maintain scalable, secure, and reusable software components and applications — spanning both back-end services/APIs and front-end interfaces.
• Contribute to defining and implementing coding standards, design patterns, and testing practices across services and integrations.
• Build and maintain enterprise APIs following best practices and collaborate with the API management team to implement gateway capabilities (traceability, monitoring, security, analytics).
• Support enhancements to the software development and deployment lifecycle for improved speed, quality, and reliability.
• Implement and automate unit, functional, integration, and contract tests for services, APIs, and applications.
• Write high-quality, maintainable, and performant code; participate in peer code reviews.
• Work closely with architects, product managers, and engineers to design solutions that align with enterprise goals.
• Integrate applications and APIs with enterprise Identity and Access Management (IAM) solutions.
• Stay current with emerging technologies and bring ideas to improve scalability, performance, and developer experience.

Requirements

• Bachelor’s or Master’s degree in Computer Science or a related field.
• 6+ years of professional software development experience.
• Strong proficiency in .NET (C#) and JavaScript/TypeScript, with experience using modern frameworks such as NestJS for back-end development and React, Angular, or Next.js for front-end applications.