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Software Engineer III

In-Situ Environmental
Fort Collins, CO Full Time
POSTED ON 1/8/2026
AVAILABLE BEFORE 2/6/2026
Position Title: Senior Software Engineer

Reports to: Software Engineering Manager

Department: Research & Development

Location: Fort Collins, CO

At In-Situ® Inc., we’re on a mission to monitor and protect water through innovative environmental and process monitoring solutions. As a global leader in water monitoring technology, we design and manufacture industry-leading products and solutions that combine cutting-edge engineering, high reliability, and user-focused design to provide an industry-leading experience across our entire water monitoring ecosystem.

Our culture thrives on collaboration, creativity, and a shared passion for making a positive impact. We serve customers worldwide with best-in-class instrumentation, sensors, mobile applications, and cloud-based solutions that enable smarter water management decisions.

If you’re ready to join a team where your work truly matters—where you’ll grow your skills, be challenged by talented peers, and help solve some of the planet’s most pressing challenges—we want to hear from you.

Primary Responsibilities

Senior Software Engineer performs software design and development, delivers high-quality and secure code, mentors engineers, provides accurate estimates, stays current with technology trends, and collaborates across teams to ensure sustainable, maintainable applications.

  • Lead and attend design studios for software features.
  • Implement software features with minimal oversight.
  • Ensure delivery of high-quality code that optimizes the company’s investment.
  • Inform business timelines by delivering predictable estimates for work to be done.
  • Maintain coding and security best practices in all delivered code.
  • Mentor junior engineers
  • Continually sustain and grow the software application, especially as technologies change.
  • Stay informed about technology changes and guide the business on current best practices and technologies.
  • Collaborate with other engineers and teams on a regular basis.

Position Qualifications

  • Bachelor’s degree or equivalent hands-on experience.
  • 5 years of relevant software development experience.
  • Outstanding object-oriented design and programming skills.
  • Effective troubleshooting and issue investigation skills.
  • Proficiency in building maintainable software with testing and extensibility in mind.
  • Familiarity with the software development lifecycle.
  • Excellent communication skills.
  • Proficient with software security best practices.
  • Applicants must have legal authorization to work in the country of employment.
  • Work on-site, in person, at one of In-Situ’s R&D Centers.

Desired Experience

  • Experience building applications with Python and Typescript.
  • Experience creating distributed cloud deployments.
  • Proficiency with full web stack technologies.
  • Experience with cloud services such as AWS or Google Cloud Platform.
  • Experience with leveraging frameworks such as Angular.
  • Active in the Open Source community.

Total Rewards

Compensation: Compensation will be commensurate with the applicant's education, experience, knowledge, skills, and abilities, as well as alignment with market data and internal benchmarks.

  • Salary Range: $119,000-$130,000
  • Additional Compensation: Participation in a Company-sponsored variable compensation plan.

Benefits Available

  • Health, Dental, and Vision Insurance.
  • 401(k) matching.
  • Short and Long-Term Disability.
  • Group Life/AD&D Insurance.
  • Employee Assistance Program.
  • Will and Trust Preparation Services.
  • Travel Assistance Services.
  • 10 paid holidays per year (set by the company).
  • 20 days of Flexible Time Off (FTO) accrued evenly throughout the year.

Voluntary Benefits

  • Life, AD&D, Pet Insurance, Identity Theft Protection, Legal Services.
  • Flexible Spending Account (FSA) for Dependent Care.
  • Health Savings Account (HSA).
  • Other supplemental options.

Additional Benefits

  • Paid Parental Leave.
  • Continuing Education Reimbursement.
  • Dependent Care and Wellness Reimbursements.

In-Situ Inc. builds world-class environmental monitoring instruments and world-class careers! Please apply at https://in-situ.com/about/careers/ if the above qualifications are met.

  • No phone calls about this job. Principals only.
  • Recruiters, please do not contact this job poster.
  • Do not contact the job poster about other services, products, or commercial interests.

All qualified applicants will be considered without regard to age over 40, color, disability, gender identity, genetic information, military or veteran status, pregnancy or having a condition relating to

pregnancy, national origin, race, religion, gender, and sexual orientation.

In-Situ is an Equal Opportunity Employer

Salary : $119,000 - $130,000

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