Senior Backend Software Engineer
Spire · Boulder, Colorado, United States · Posted Jun 18, 2026
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About the Role
Spire is looking for a Senior Software Engineer to help design, build, and improve the reliable and secure systems that support our satellite and ground infrastructure.
This is a hands-on engineering role focused on backend systems, platform engineering, observability, and infrastructure-aware software development. You’ll work closely with software, infrastructure, and cybersecurity teams to implement scalable solutions that support operational reliability and secure engineering practices.
We are not looking for a dedicated cybersecurity specialist. Instead, we’re seeking an experienced software engineer who has worked alongside security teams and has experience implementing technical requirements related to security, reliability, and compliance within production systems.
This role is best suited to engineers who enjoy solving technically challenging problems and have experience working on complex systems in industries such as aerospace, scientific computing, telecommunications, biotech, robotics, or other high-reliability environments.
What You'll Do:
Design, develop, and maintain backend services and platform tooling
Collaborate with cybersecurity and infrastructure teams to implement secure engineering requirements
Contribute to modernising services, container environments, and CI/CD workflows
Improve telemetry, monitoring, logging, and observability across production systems
Support cloud-based infrastructure and deployment workflows in AWS environments
Participate in code reviews, architecture discussions, and engineering best practices
Work across infrastructure, backend systems, and operational tooling in a collaborative engineering environment
Who You Are:
Required Qualifications:
5+ years of professional software engineering experience
Strong Python development skills
Experience with at least one compiled language such as Rust, C++, Go, Java, or C
Strong backend engineering experience building and maintaining production systems
Experience working with AWS-based environments (GCP experience also considered)
Experience with containers, CI/CD pipelines, and modern software delivery practices
Comfortable working in Linux-based development environments
Strong understanding of systems engineering, performance, reliability, and operational concerns
Experience collaborating with infrastructure and/or cybersecurity teams to implement technical requirements
Strong communication and documentation skills
Preferred Qualifications:
Experience working in aerospace, scientific computing, biotech, telecommunications, robotics, or other technically complex industries
Experience in smaller engineering organisations where engineers wear multiple hats across development and operations
Familiarity with Kubernetes, Terraform, and infrastructure-as-code approaches
Experience with PostgreSQL or other relational databases
Experience building observability or telemetry solutions using tools such as Grafana, Databricks, or Elasticsearch
Familiarity with GitHub Actions or modern CI/CD tooling
Exposure to secure software development or DevSecOps practices
Advanced academic research background (PhD/Postdoc) in engineering, physics, computer science, or related scientific disciplines
What We're Looking For:
We value engineers who are:
Curious and adaptable
Pragmatic problem-solvers
Interested in complex systems and infrastructure
Open to learning new technologies and domains
Collaborative and low-ego
Comfortable operating in fast-moving engineering environments
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-DC1
The anticipated base salary range for this position is listed below. Final base salary for this role will be based on the location, skills, experience and qualifications. In addition to base compensation, this role may be eligible for annual equity awards and our employee benefits program, including vacation, sick, and personal time off; optional medical, dental, vision, life, and disability coverage; a 401(K) plan; health and wellness reimbursement program; and participation in Spire’s Employee Stock Purchase Plan.
Salary Range
$130,500 $171,000 USD
Global Perks
🛰️ Name Your Satellite Program (NYSP)
🚀 Launch Attendance
🌴 Generous Time Off Policy
🎓 Education Assistance Program
🥰 Employee Assistance Program (EAP)
📈 Employee Stock Purchase Program (ESPP)
👣 Family Leave
💪 Fitness Reimbursement
🧡 Employee Referral Program
🍉 Healthy snacks beverages in every office
About Spire
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