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Senior Software Engineer Startup Jobs in Colorado

Kharon

Senior Software Engineer

Denver, CO · On-site

$160K - $200K/yr

Senior Software Engineer Application Deadline: 28 August 2026 Department: Engineering Employment Type: Full Time Location: Denver Compensation: $160,000 - $200,000 / year Description TL;DR Kharon is ...

Huck Adventures

Senior Software Engineer

Boulder, CO · On-site

$137K - $180K/yr

We are seeking a Senior Software Engineer to become an integral part of our team! You will be responsible for creating and modifying computer application software or specialized utility programs. As ...

GliaCell Technologies

Senior Software Engineer

Aurora, CO · On-site

$170K - $260K/yr

Are you a Senior Software Engineer who is ready for a new challenge that will launch your career to the next level? * Tired of being treated like a company drone? * Tired of promised adventures ...

Huck Adventures

Senior Software Engineer

Boulder, CO

$137K - $180K/yr

We are seeking a Senior Software Engineer to become an integral part of our team! You will be responsible for creating and modifying computer application software or specialized utility programs. As ...

Otter, LLC

Senior Software Engineer

Boulder, CO · On-site

$90K - $120K/yr

We are seeking a Senior Software Engineer to become an integral part of our team! You will be responsible for creating and modifying computer application software or specialized utility programs. As ...

Otter, LLC

Senior Software Engineer

Boulder, CO · On-site

$90K - $120K/yr

We are seeking a Senior Software Engineer to become an integral part of our team! You will be responsible for creating and modifying computer application software or specialized utility programs. As ...

asrcfh

Senior Software Engineer

Aurora, CO · Hybrid

$124K - $164K/yr

We are seeking a Senior Software Engineer to design, develop, and evolve advanced core software applications supporting NOAA's Space Weather Observations Mission Operations Services (SWO-MOS) program.

OrthoFi, Inc.

Senior Software Engineer

Denver, CO · On-site

$130K - $170K/yr

As a Senior Engineer, you will serve as a critical technical problem-solver- who takes extreme ownership of building scalable, highly reliable software systems in an agile environment. In this role ...

asrcfh

Senior Software Engineer

Aurora, CO · Hybrid

$124K - $164K/yr

We are seeking a Senior Software Engineer to design, develop, and evolve advanced core software applications supporting NOAA's Space Weather Observations Mission Operations Services (SWO-MOS) program.

ASRC Federal Holding

Senior Software Engineer

Aurora, CO · On-site

$106K - $180K/yr

Join our team and discover why we are a top veteran employer and Certified Great Place to Work™ We are seeking a Senior Software Engineer to design, develop, and evolve advanced core software ...

PDW

Senior Software Engineer

Denver, CO · On-site

$126K - $166K/yr

The Senior Software Engineer will lead the design and implementation of significant software features, collaborate with various teams, and mentor junior engineers while ensuring high coding standards ...

Nametag

Senior Software Engineer, Reliability

Denver, CO · Remote

$120K - $190K/yr

Senior Software Engineer, Reliability Remote, US About Nametag Nametag is building the future of ... Startup experience: You've worked at an early-stage company and know what it means to move fast ...

AppFolio

Sr. Software Engineer - Accounting

CO · On-site +1

$126K - $166K/yr

About this job We're looking for a Senior Software Engineer to join a 6-person cross-functional product development team focused on continuing to enhance the accounting module of our Appfolio ...

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All JobsSoftware Engineer Startup JobsSenior Software Engineer Startup JobsSenior Software Engineer Startup Jobs in Colorado

Senior Software Engineer Startup information

See Colorado salary details

$79.4K

$150.7K

$201.9K

How much do senior software engineer startup jobs pay per year?

As of Aug 7, 2026, the average yearly pay for senior software engineer startup in Colorado is $150,674.00, according to ZipRecruiter salary data. Most workers in this role earn between $128,800.00 and $169,800.00 per year, depending on experience, location, and employer.

What are some unique challenges senior software engineers face when working at a startup compared to a larger company?

Senior Software Engineers at startups often navigate a fast-paced, rapidly changing environment where priorities can shift quickly. Unlike at larger organizations with established processes and specialized teams, startup engineers may wear multiple hats, handling everything from architecture decisions to hands-on coding and even DevOps tasks. This role typically requires a high degree of autonomy and the ability to make impactful technical decisions with limited resources. The collaborative nature means frequent interaction with product managers, designers, and often even company leadership, creating opportunities for broad influence but also demanding strong communication and adaptability.

What are the key skills and qualifications needed to thrive as a senior software engineer at a startup, and why are they important?

To thrive as a Senior Software Engineer at a startup, you need advanced programming abilities, architectural design experience, and a solid understanding of software development lifecycles, typically backed by a bachelor's degree in computer science or a related field. Familiarity with modern frameworks, cloud platforms (like AWS or Azure), version control systems (such as Git), and agile methodologies is essential, with certifications in relevant technologies being advantageous. Strong problem-solving, adaptability, and effective communication skills help you navigate the dynamic startup environment and mentor junior team members. These skills are crucial to rapidly building scalable solutions, driving innovation, and supporting business growth in a fast-paced and often ambiguous setting.

What is the difference between Senior Software Engineer Startup vs Software Engineer Startup?

AspectSenior Software Engineer StartupSoftware Engineer Startup
Required CredentialsBachelor's/Master's in CS or related field, 3+ years experienceBachelor's in CS or related field, 0-2 years experience
Work EnvironmentFast-paced startup, leadership responsibilities, mentorshipCollaborative team, learning-focused, entry-level to mid-level tasks
Employer & Industry UsageTech startups, scale-ups, innovative projectsEarly-stage startups, product development teams
Common Search & ComparisonHigher responsibility, technical expertise, leadershipLearning opportunities, foundational skills, growth potential

The main difference between a Senior Software Engineer Startup and a Software Engineer Startup lies in experience, responsibilities, and leadership. Senior Software Engineers typically have more experience, take on mentorship roles, and handle complex projects, while Software Engineers are often in entry to mid-level positions focused on skill development and supporting team tasks.

What does a senior software engineer do at a startup?

A Senior Software Engineer at a startup is responsible for designing, developing, and maintaining the core software products or services. They often take on a broad range of tasks, including coding, code reviews, system architecture, and mentoring junior team members. In a startup environment, they may also contribute to product decisions, help set technical direction, and quickly adapt to changing priorities. Their role is critical in building scalable, reliable solutions while fostering innovation and collaboration within a small, fast-paced team.
What are the most commonly searched types of Software Engineer Startup jobs in Colorado? The most popular types of Software Engineer Startup jobs in Colorado are:
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Senior Software Engineer Startup jobs near you

Senior Software Engineer

Grey Matters Defense Solutions

Centennial, CO • On-site

$130K - $172K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 7 days ago

Job description

Grey Matters Defense Solutions specializes in software development and solutions, specialized data analytics algorithms, and innovative remote sensing technologies and operations, with senior-level personnel formerly from DIA, NRO, DARPA, and the US Armed Forces. Grey Matters Defense Solutions differentiates itself by combining its subject matter experts, analysts, software engineers, and its data scientists to create unique artificial intelligence algorithms and various applications.
Grey Matters Defense Solutions is seeking a talented and dedicated, Senior Software Engineer
About the job:
• Solve real world problems relevant to the Intel Community (IC) and Department of Defense (DoD) using a combination of FOSS/GOTS/COTS software and hardware.
• Contribute to all aspects of project software development lifecycle from research, prototyping solutions to assess feasibility, integration with external software systems, development, and product deployment. Key
About you:
  • 8+ years experience in Java
    • Gradle
    • Jenkins
    • Node/NPM
  • Domain/Systems related
    • JWICS
    • Databahn
    • S2P
    • Clairvoyant
    • TAK
    • TLS/SSL Secure System Comms
  • Preferred Skills
    • CFMA
    • GIMS
    • Clairvoyant
    • Node
    • SIPR access

Salary Range: 130,000 - $190,000
Grey Matters Defense Solutions offer a comprehensive benefits package including medical, dental, vision, life insurance, short-term and long-term disability.
Additional Benefits:
  • SEP IRA 25% of base salary
  • IBA 25% used to pay medical insurance premiums + funded time off
  • Employee assistance program
  • Employee discount
  • Flexible spending account
  • Health savings account
  • Referral program

Grey Matters Defense Solutions' most valuable assets are the more than 60 employees, consisting of data scientists, custom software developers, and analysts/subject matter experts, with senior-level personnel formerly from DIA, NRO, NSA and the US Armed Forces. Our employees have a depth of analytical knowledge which provides them with deep understanding of managing and delivering products within government systems. Grey Matters Defense Solutions provides transformational leadership building aware-winning teams and products.
Visit us at Grey Matters Defense Solutions
https://www.linkedin.com/company/grey-matters-defense-solutions/
"Know Your Rights: Workplace Discrimination is Illegal"
Questions contact: [email protected]
  • All qualified applicants will receive consideration for employment regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
  • Grey Matters Defense Solutions, LLC participates in E-Verify. Federal law requires all employers to verify the identity and employment eligibility of all persons hired to work in the United States.
  • Grey Matters Defense Solutions, LLC complies with the Colorado Artificial Intelligence Act (CAIA) and maintains policies, controls, and oversight practices designed to mitigate algorithmic discrimination, promote transparency, and ensure responsible use of AI systems in accordance with Colorado law.

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