Software Developer - Legacy Systems & Geotechnical Tools

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Call & Nicholas, Inc. is a 100% employee-owned geotechnical engineering leader onsite in Tucson, AZ seeking a Software Developer to steward legacy Fortran code and help engineers by building new internal tools. The role blends maintaining and debugging decades-old analyses with modernizing the software ecosystem through web apps (JavaScript), Excel tools (VBA), AutoCAD automation (AutoLISP), and scripts in Python, C#, and Perl. Expected is 2 to 10 years of professional software development, experience with legacy code, strong problem solving, and the ability to communicate clearly with technical and non-technical stakeholders. To apply, tailor your resume to show legacy maintenance, collaboration with engineers, and concrete modernization projects, highlight languages, databases, version control, CI/CD, and geotechnical domain experience.

Company Description

Join Call & Nicholas, Inc. – A 100% Employee-Owned Leader in Geotechnical Engineering

Call & Nicholas, Inc. is an internationally recognized, privately held engineering consultancy based in Tucson, AZ. which specializes in geotechnical engineering and hydrogeology for the mining industry. CNI has been in existence since 1979 and employs engineers, geologists, and support staff. We are an industry leader in geotechnical services and proud to be 100% employee owned. Check us out further on our website at www.cnitucson.com

Job Description

CNI is seeking to employ a programming specialist to manage legacy code and work with engineers in developing new code for internal utilization in engineering practice.

Legacy code includes several suites of programs, written in Fortran, to accomplish custom developed engineering analyses. This code dates back to the 1980s.  

Key Responsibilities

• Maintain, debug and improve proprietary legacy Fortran code used for custom geotechnical and hydrological analyses.
• Collaborate with engineers and geologists to develop new features and tools.
• Modernize and extend our software ecosystem, including:
  • Web-based applications (JavaScript)
  • Excel-based tools (VBA / Visual Basic for Applications)
  • AutoCAD automation (AutoLISP)
  • Scripts and utilities in Python, C#, and Perl
• Support internal users and deliver reliable, performant software that directly supports engineering decisions.

Qualifications

Required Qualifications

• 2–10 years of professional software development experience
• Experience working with and maintaining legacy codebases
• Strong problem-solving and debugging skills
• Proficiency in one or more common backend or full-stack languages (e.g., Python, C#, Java, JavaScript, or similar)
• Experience with relational databases and writing efficient queries
• Ability to communicate clearly with both technical and non-technical stakeholders

Nice to Have

• Experience in an engineering, scientific, or consultancy environment
• Exposure to system modernization or migration projects
• Familiarity with version control, CI/CD pipelines, and automated testing
• Frontend framework experience
• Interest in improving software architecture over time
• Experience with building or managing databases

Additional Information

What We Offer

• Interesting, real-world problems tied to engineering projects
• A balance of legacy system stewardship and new development
• Collaborative team environment
• Competitive salary and benefits
• Opportunities to influence technical direction and system design