Software Engineer III

Zinnia

$100K — $120K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of expertise in Microsoft .NET across the complete software development lifecycle.
  • Proficient in Agile/Scrum methodologies, delivering end-to-end solutions including C#, ASP.NET Core, MVC, and Web API.
  • Strong grasp of design patterns, API-first design, and SOLID principles.
  • Hands-on experience with AWS, managing cloud infrastructure including compute, storage, and serverless.
  • Skilled in designing and consuming secure RESTful APIs with knowledge of OAuth2 and Open API/Swagger.
  • Experience embedding AI capabilities in software with LLM API integration and prompt engineering.
  • Excellent communication and interpersonal skills with a track record in cross-functional teams.

Responsibilities

  • Develop innovative software solutions as part of a cross-functional global team.
  • Create well-designed, testable code for Life & Annuity Exchange platforms.
  • Provide support and enhancements to existing platforms based on stakeholder needs.
  • Adapt to evolving development and delivery requirements in a fast-paced environment.
  • Collaborate effectively with global teams and internal stakeholders.
  • Work independently and prioritize tasks while supporting various projects.
  • Mentor junior team members in both soft and technical skills.

Benefits

  • Health and dental insurance programs.
  • Parental leave for employees.
  • 401(k) retirement plan with potential contribution matching.
  • Incentive and bonus opportunities based on performance.
  • Tuition reimbursement for ongoing education and training.
Full Job Description
WHO YOU ARE

Software Engineer plays a key role in the design, development/configuration, unit testing, installation, and ongoing maintenance of Zinnia software platforms. Works with stakeholders to develop solutions and/or products that fulfill the needs of Zinnia's internal stakeholders and clients. Those solutions and/or products help Zinnia and Zinnia clients to be more efficient and provide better service to end customers. Software Engineer interacts directly with project managers and business stakeholders and may periodically interact directly with Zinnia's clients. Will facilitate, architect, and enable junior team members by acting as a mentor for soft skills and/or technical subject matter experts.

WHAT YOU'LL DO
• Work as part of a global, cross-functional team to develop innovative software for Zinnia's stakeholders.
• Contribute to projects by creating well-designed, customized, testable, and efficient code for Life & Annuity Exchange platforms.
• Assist our teams in providing ongoing support, troubleshooting, improvements, or custom enhancements to existing Life & Annuity Exchange platforms.
• Flexibility to support the challenging development and delivery needs of Zinnia
• Collaborate with our global teams, internal stakeholders, and customers.
• Ability to work in a fast-paced environment, recognize and react to changing business needs and effectively prioritize tasks
• Must be self-motivated and able to work independently and in conjunction with team members and business units. Enthusiasm and flexibility to work on a variety of projects

WHAT YOU'LL NEED:
  • Microsoft .NET (5-7 Years) deep, well-rounded expertise across the complete software development lifecycle using.NET technologies.
  • Consistently delivers end-to-end solutions - from requirements gathering through production deployment - within Agile/Scrum teams. Core stack: C#, ASP.NET Core, MVC, and Web API, utilizing Visual Studio IDE, SSRS, SOAP, XML, and GitHub.
  • Strong understanding of advanced design patterns, API-first design, and SOLID principles.
  • AWS (Cloud) Hands-on experience deploying and managing cloud infrastructure on AWS - covering compute, storage, serverless, and observability.
  • Able to work independently across the cloud stack, moving beyond basic service consumption to support real engineering needs.
  • RESTful API Skilled in designing, building, and consuming secure RESTful APIs with a strong command of industry standards.
  • Well-versed in OAuth2 authentication, Open API/Swagger documentation, and API testing workflows using Postman.
  • AI Integration Practical, hands-on experience embedding AI capabilities into production software - including LLM API integration, prompt engineering, and developing AI-adjacent features - actively deepening this expertise as a core part of a modern engineering toolkit.
  • Collaboration & Communication: Effective communicator with strong interpersonal and critical thinking skills.
  • Experienced working within cross-functional, global teams - handling client communication, issue management, deployment support, and technical documentation with confidence.

BONUS:
• Working experience on enterprise-level applications/products
• Working experience in React/Angular, REACT, KONG, JIRA
• Experience with Web-based software as a service (SaaS) application
• Knowledge of Redis Cache for in-memory data structure storage and caching

WHAT'S IN IT FOR YOU?

Zinnia offers excellent career progression and competitive compensation with the goal of retaining and growing talented team members. The salary range for this role is a good faith estimate; it is estimated based on what a successful candidate might be paid in certain Company locations. The salary range for this position is $100,000-$120,000. All offers presented to candidates are carefully reviewed to ensure fair, equitable pay by offering competitive salaries that align with the individual's skills, education, experience, training, and geographic location. The range may vary above or below the stated amounts. We offer great benefits, including health/dental insurance, parental leave,401(k), incentive/bonus opportunity, tuition reimbursement, and so much more. We're looking for the best and brightest innovators in the industry to join our team. At Zinnia, you collaborate with smart, creative professionals who are dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website.

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