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Senior Backend Engineer Jobs in Colorado (NOW HIRING)

Spire

Senior Backend Software Engineer

Boulder, CO · Hybrid

$127K - $167K/yr

We are generally looking for engineers with stronger backend and systems experience rather than heavily frontend-focused backgrounds. Spire operates a hybrid work model, and this position will ...

Spire

Senior Backend Software Engineer

Boulder, CO · Hybrid

$130K - $171K/yr

We are generally looking for engineers with stronger backend and systems experience rather than heavily frontend-focused backgrounds. Spire operates a hybrid work model, and this position will ...

Spire

Senior Backend Software Engineer

Boulder, CO · On-site

$130K - $171K/yr

We are generally looking for engineers with stronger backend and systems experience rather than heavily frontend-focused backgrounds. Spire operates a hybrid work model, and this position will ...

GoTo Meeting

Senior Backend Software Engineer

Boulder, CO · On-site

$171 - $202.50/hr

Engage in code reviews, pair programming sessions, and tooling development to advance secure ... Proven ability to work in small, agile teams and learn from senior mentors. Bonus * Experience in ...

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Senior Backend Engineer information

See Colorado salary details

$18.5K

$137.9K

$193.1K

How much do senior backend engineer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for senior backend engineer in Colorado is $137,895.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,200.00 and $161,800.00 per year, depending on experience, location, and employer.

What is a senior backend engineer?

Senior Backend Engineers are experienced software professionals responsible for designing, developing, and maintaining the server-side components of web applications or systems. They work with databases, APIs, and application logic to ensure robust, scalable, and efficient backend operations. Their role often involves collaborating with frontend engineers, managing system architecture, reviewing code, and mentoring junior developers. Senior Backend Engineers also play a key role in optimizing performance, ensuring security, and integrating new technologies into existing systems.

What are some common challenges senior backend engineers face when scaling backend systems, and how are they typically addressed?

Senior Backend Engineers often encounter challenges related to system scalability, such as database bottlenecks, latency issues, and maintaining system reliability under increased load. Addressing these challenges typically involves optimizing database queries, implementing caching strategies, and designing microservices architectures to distribute workloads efficiently. Collaboration with DevOps and frontend teams is also crucial to ensure seamless integration and monitoring. Proactively identifying potential scalability issues and participating in code reviews are key responsibilities in this role.

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

To thrive as a Senior Backend Engineer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), database management, and experience with scalable system architecture, typically supported by a relevant degree and several years of professional experience. Familiarity with frameworks, APIs, containerization tools (like Docker and Kubernetes), and cloud platforms (such as AWS or Azure) is essential, along with knowledge of version control systems like Git. Strong problem-solving abilities, effective communication, and mentorship skills help you collaborate across teams and guide junior developers. These skills ensure the delivery of robust, efficient, and maintainable backend systems that support business objectives and seamless user experiences.

How much does a senior backend engineer make?

A senior backend engineer's salary typically ranges from $100,000 to $160,000 annually, depending on experience, location, and company size. They often have expertise in programming languages like Java, Python, or Node.js and may receive additional compensation through bonuses or stock options.

What are the most commonly searched types of Backend Engineer jobs in Colorado?

The most popular types of Backend Engineer jobs in Colorado are:

What cities in Colorado are hiring for Senior Backend Engineer jobs?

Cities in Colorado with the most Senior Backend Engineer job openings:

Senior Backend Engineer jobs near you
Infographic showing various Senior Backend Engineer job openings in Colorado as of August 2026, with employment types broken down into 90% Full Time, 5% Part Time, and 5% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $137,895 per year, or $66.3 per hour.

Senior Backend Software Engineer

Spire

Boulder, CO • Hybrid

$127K - $167K/yr

Full-time

Re-posted 13 days ago

Job description

The Role: 

Due to team growth, we are seeking an experienced Software Engineer to join our Sat OS team, which develops the high-level operating system and file transfer layer for the spacecraft

The successful candidate will play a crucial role in developing software for our satellite systems, contributing to the expansion and enhancement of our space and ground-based data transfer capabilities. Ideal candidates will embrace the commercialization of nanosatellite systems and adapt to low-cost, fast-paced systems design, development, and implementation methodologies that set Spire apart from our competition. In this fast-paced environment, the design to launch cycle is measured in weeks and months, not years!

What You'll Do as a Sat OS Software Engineer:

  • Develop and enhance satellite-side applications with a focus on file transfer to and from the satellite and its payloads
  • Contribute to the design and implementation of the next generation of Spire's File Transfer architecture (Rust)
  • Ensure that Spire's file transfer services meet internal and mission-driven security standards
  • Enhance observability and fault-tolerance of Spire's file transfer services
  • Take responsibility for the performance of critical file transfer services that contribute to the movement of data to and from Spire's entire fleet of nanosatellites
  • Contribute to the design and implementation of highly available, fault-tolerant systems to meet the demands of new customer missions
  • Perform ground-based testing and in-orbit verification of new software services
  • Coordinate closely with Spire's communications team, systems engineering, product owners, and internal customers to ensure alignment and optimal integration with interfacing hardware and software services
  • Create and maintain comprehensive documentation for APIs and system architectures
  • Implement observability solutions for space and ground-based services to provide a clear and actionable view of service performance

Basic Skills/Qualifications:

  • 5+ years' experience in professional software development
  • Proven experience in production-grade software development using at least one compiled language
  • Proficiency in Python or equivalent high-level language
  • Knowledge of Linux-based development
  • Excellent documentation, collaboration, and communication skills
  • Systems-level thinking (distributed, scalable, highly available) with an appetite for creating and adapting applications
  • Hands-on experience with Cloud Computing Platforms (AWS), IaC and modern CI/CD pipelines
  • Knowledge of version control systems

Preferred Skills/Qualifications:

  • Proficiency in Python and Rust
  • Experience working under regulatory frameworks such as NIST and FAR
  • Familiarity with cybersecurity principles and platforms such as Wiz
  • Experience with operating a live, highly available critical system at scale
  • Experience writing applications between L3 and L7 networking layers and familiarity with L2/L3 protocols
  • Experience with modern AI development tooling
  • Proficiency in scripting languages like Bash

This role is primarily backend and platform focused. We are generally looking for engineers with stronger backend and systems experience rather than heavily frontend-focused backgrounds.

Spire operates a hybrid work model, and this position will require you to work a minimum of three days per week in the office.

Access to US export-controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses-this is not something candidates need to have before applying.  #LI-MK1

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