Software Developer III

Our client is looking for a Software Developer III. This is a contract-to-hire opportunity to join a software engineering team building and modernizing desktop applications used by engineering and construction professionals.

Location: Centennial, CO – Hybrid (Monday–Tuesday onsite, Wednesday–Friday remote)
Duration: 6 months, Contract to Hire
Target Pay Rate: $55.00 - $65.00/hr

**Benefits:** Benefits available to eligible employees or consultants may include medical, dental, and vision insurance, paid sick leave, retirement savings plans, and other employer sponsored programs.
*US citizens and those authorized to work in the US are encouraged to apply.*
*Work sponsorship is not currently available.*

Summary:
This role is focused on designing, developing, and maintaining business-critical desktop software used by engineers, architects, and construction professionals. The successful candidate will work within a collaborative Agile team alongside product owners, QA analysts, and business stakeholders to deliver high-quality solutions using the Microsoft technology stack. In addition to core development work, this individual will contribute to legacy application modernization efforts, mentor junior team members, and help establish practical standards for AI-assisted development. Candidates will be evaluated at the Software Developer II or III level based on experience and demonstrated technical leadership.

Key Responsibilities:
- Design, develop, test, and maintain desktop software solutions aligned to business requirements and architectural standards, delivering scalable, high-performance, and secure applications.
- Participate in full software development lifecycle (SDLC) activities including requirements clarification, solution design, implementation, testing, deployment, and ongoing support.
- Leverage AI-assisted development tools (such as GitHub Copilot and LLM-based coding assistants) to improve code quality, test coverage, and delivery efficiency, while helping establish responsible usage standards.
- Identify opportunities to improve developer productivity, documentation quality, and code maintainability through automation and AI-assisted workflows.
- Provide technical guidance and mentorship to junior developers; conduct code reviews and enforce coding standards and best practices.
- Collaborate with product owners, analysts, and business stakeholders to translate requirements into robust technical solutions, and communicate technical concepts and tradeoffs clearly across audiences.
- Support and enhance legacy applications while contributing to incremental modernization efforts that improve maintainability, security, performance, and developer experience.
- Troubleshoot and resolve complex production issues using strong analytical and problem-solving skills.

Qualifications:
- Bachelor's degree or higher in Computer Science, Engineering, or a related field.
- 5+ years of relevant software development experience, or an equivalent combination of education and professional experience.
- Proficiency in .NET development using C# and SQL Server, with experience supporting both desktop and web-based Windows applications.
- Experience with Azure DevOps for source control and CI/CD pipelines.
- Experience performing code reviews and enforcing coding standards and best practices.
- Strong troubleshooting and defect resolution skills.
- Strong written and verbal communication and interpersonal skills.
- Experience working in Agile development environments.
- Ability to manage multiple priorities and deadlines effectively.
- Self-starter with a growth mindset and commitment to continuous learning.
- Experience developing software that creates, manipulates, analyzes, or visualizes 2D or 3D geometric models.
- Strong mathematics background.

Nice to Have:
- Hands-on experience using AI coding assistants in professional software development workflows.
- Experience integrating AI-enabled capabilities (such as summarization, extraction, search, or conversational workflows) into applications using enterprise-approved services.
- Familiarity with prompt design, output evaluation, and practical safeguards for secure and responsible use of generative AI in software delivery.
- Experience improving engineering throughput using AI-assisted approaches to coding, testing, documentation, or debugging.
- Academic background or coursework in structural or civil engineering.
- Exposure to engineering analysis software, construction drawings, or layout design tools.
- Exposure to 3D graphics engines such as DirectX, OpenGL, or similar technologies.
- Experience with C/C++ development.

About Hansell Tierney:
Hansell Tierney is one of the premier staffing and recruiting companies in the Pacific Northwest. Launched in 2001, we are a woman-owned business that serves and staffs Northwest organizations by doing things the right way, not just the easiest way. Hansell Tierney partners with candidates and clients to match the best candidates with interesting local opportunities. We navigate every relationship with the highest level of discretion and service while holding ourselves accountable to our promises. Our business thrives on our deep understanding of the job market and our ability to skillfully tailor our recruitment process to meet our clients' unique needs.

This Organization Participates in E-Verify
This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact the Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.

Compensation and Benefits Disclosure
The compensation range listed above represents the expected range for this position. Actual compensation may vary based on factors including experience, skills, internal equity, and geographic location.

Benefits available to eligible employees or consultants may include medical, dental, and vision insurance, paid sick leave, retirement savings plans, paid time off, and other employer-sponsored programs.