June 19, 2026

Senior Backend Software Engineer

Senior • Hybrid

Boulder, CO

About the Role

Spire is looking for a Senior Software Engineer to help design, build, and improve the reliable and secure systems that support 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

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

  • 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, with an emphasis on backend and systems experience rather than frontend-heavy backgrounds.

Spire operates a hybrid work model, requiring 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, the necessary licenses will be arranged.

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

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It emphasizes hands-on backend development, system reliability, and production-quality engineering. 🗂️ Requirements: Strong backend development experience, Proficiency in Python and/or TypeScript, Experience building APIs and backend systems, Experience designing scalable and distributed systems, Understanding of API design and data modeling, Experience with cloud platforms (AWS, GCP, or Azure), Experience with CI/CD practices, Experience integrating external APIs, Ability to debug and troubleshoot production systems 📃 Skills: Python, TypeScript, API, REST, DistributedSystems, AWS, GCP, Azure, CI/CD, LLM, RAG, Integration, DataModeling, Cloud, Git 🏢 Description: What's the role? We are looking for a Senior Software Engineer to build core backend systems powering next-generation agentic AI solutions for the logistics industry. The systems developed by this team optimize deliveries at scale improving driver efficiency, increasing reliability, reducing operational costs, and lowering environmental impact. In this role, you will focus on building the core service layer, customer-facing APIs, workflow engines, and integrations with HERE APIs and third-party systems that enable intelligent logistics workflows. You will work closely with senior engineers and technical leaders to design and implement scalable, reliable systems that support AI-driven planning and optimization use cases. This is a hands-on engineering role with a strong focus on backend development, system reliability, and production-quality delivery . What You’ll Do: Design, build, and maintain core backend services, APIs, and workflow orchestration systems for logistics applications Implement integrations with HERE APIs and external third-party systems to support real-world logistics workflows Translate product and technical requirements into scalable and maintainable system components Write clean, efficient, and well-tested code in Python and/or TypeScript Contribute to system design discussions and implement solutions aligned with the overall architecture Build and maintain customer-facing APIs with a strong focus on usability, performance, and reliability Ensure high-quality delivery through testing, monitoring, and debugging in production environments Collaborate with engineers, product managers, and domain experts to deliver end-to-end features Continuously improve system performance, scalability, and operational efficiency Leverage AI-assisted development tools to improve development speed and code quality Who are you? What We’re Looking For: Software engineering experience with strong backend development skills Proficiency in Python and/or TypeScript, with experience building APIs and backend systems Experience designing and building scalable services and working with distributed systems Strong understanding of API design, data modeling, and system integration patterns Experience working with cloud platforms (AWS, GCP, or Azure) and modern CI/CD practices Familiarity with building or integrating AI/ML systems (e.g., working with LLM APIs, RAG-based systems, or similar) is a plus Experience integrating with external APIs and handling real-world data and system constraints Solid debugging and problem-solving skills in production environments Ability to work independently on well-defined problems and collaborate effectively within a team Good communication skills and a pragmatic approach to engineering challenges What We Offer: The opportunity to tackle meaningful and challenging problems A chance to continuously learn and stay on top of the latest technology trends Work that has real-world impact, shaping the future of mobility and technology Regular feedback to help you grow and succeed in your role A collaborative and supportive team environment where your contributions are valued Competitive salary plus bonus Flexible working hours and a hybrid working environment Medical coverage for you and your family This role is eligible for Creative Tax Incentive scheme in Poland” or KUP (Autorskie Koszty Uzyskania Przychodu) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Change is HERE. Apply Now! #LI-AK8   #LI-HYBRID Life at HERE in Poland comes with a competitive total rewards package designed to support your health, wellbeing, and performance. This includes a base salary, a Short-Term Incentive (STI) bonus (percentage based on role), a creative tax advantage for eligible positions, private medical care (including dental), life insurance, a meal allowance, vision reimbursement, a remote work allowance (if applicable), access to MyBenefit and Multisport programs, and various wellbeing initiatives. Paid time off, sick leave, and parental leave are provided in accordance with the Polish Labor Code. As part of HERE Technologies employment process, candidates will be required to successfully complete a pre-employment screening process. This offer and any related claims are subject to the successful completion of a pre-employment screening. This will involve employment, education, and criminal verification if applicable. HERE is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, age, gender identity, sexual orientation, marital status, parental status, religion, sex, national origin, disability, veteran status, and other legally protected characteristics. Who are we? HERE Technologies is a location data and technology platform company. We empower our customers to achieve better outcomes – from helping a city manage its infrastructure or a business optimize its assets to guiding drivers to their destination safely. At HERE we take it upon ourselves to be the change we wish to see. We create solutions that fuel innovation, provide opportunity and foster inclusion to improve people’s lives. If you are inspired by an open world and driven to create positive change, join us. Learn more about us on our YouTube Channel. Apply for this job online Email this job to a friend Share on your newsfeed Connect With Us! Not ready to apply? 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Technology

Link Group

Senior Fullstack Developer

Senior

Remote

Warsaw, Poland

110 - 140 PLN

🏢 Summary: Senior Software Engineer role focused on designing and developing scalable backend and fullstack applications using modern C++ in Linux environments. The position involves performance optimization, concurrency, and cloud-native technologies while contributing to high-impact product features. It requires strong ownership, collaboration, and the ability to work across diverse technologies including cloud and DevOps tools. 🗂️ Requirements: 6+ years of C++ development experience, Strong knowledge of multithreading, Strong knowledge of memory management, Experience with performance optimization, Experience developing backend systems, Experience with REST APIs, Experience working in Linux environments, Ability to design and maintain scalable systems, Bachelor’s degree in STEM field 📃 Skills: C++, Linux, REST, Multithreading, AWS, Python, Go, Terraform, CloudFormation, GitHub, Jenkins, Artifactory, Ansible 🏢 Description: Senior Software Engineer – C++ We are looking for a talented Senior Software Engineer to join our team. This role is ideal for someone with deep experience in C++ development , backend skills, and exposure to cloud-native technologies. You will work on challenging projects, contribute to high-impact features, and help shape the future of our products. What You’ll Do Design, develop, and maintain scalable backend systems in C++ (modern C++ preferred) Work on fullstack applications , including REST API-based backend services Optimize software for performance, concurrency, and memory efficiency Develop and maintain applications in Linux environments Take ownership of technical tasks, delivering high-quality results independently Collaborate closely with cross-functional teams, contributing to design and technical discussions Explore new technologies and expand beyond your primary stack, including Python, Go, and AWS Apply a product-focused mindset, understanding the business impact of your technical decisions What We’re Looking For 6+ years of hands-on experience in C++ development Solid understanding of multithreading, memory management, and performance optimization Strong experience contributing to complex features with exposure to diverse technologies Proven ability to work effectively in a team and communicate clearly Experience with Linux-based systems and development in Linux environments Self-motivated, independent, and capable of delivering results with limited supervision Bachelor’s degree in Science, Technology, Engineering, or a related field Nice to Have Experience with Go and/or Python Knowledge of cloud-native development and Infrastructure-as-Code tools (Terraform, CloudFormation) Background in enterprise-scale applications or AWS serverless architectures Familiarity with networking protocols, security best practices, and database systems Experience with modern CI/CD pipelines (GitHub, Jenkins, Artifactory, Ansible)

Technology

Relativity

Senior .NET Engineer - Automation Services

Senior

Remote

Krakow, Poland

208,000 - 312,000 PLN/yr

🏢 Summary: Senior Software Engineer role focused on building and operating a cloud-native engineering platform using .NET and Azure. The position centers on developing scalable platform services, Infrastructure as Code, and CI/CD automation to enhance developer productivity. You will drive DevOps practices, cloud infrastructure standardization, and platform observability in a fast-paced environment. 🗂️ Requirements: 5+ years of software development experience, Strong proficiency in C# and .NET, Hands-on experience with Microsoft Azure, Experience with Infrastructure as Code, Experience with CI/CD systems and DevOps pipelines, Experience with containers and orchestration tools, Ability to design scalable and secure cloud-native architectures, Agile team experience 📃 Skills: C#, .NET, Azure, Terraform, Bicep, ARM, CI/CD, DevOps, Docker, Kubernetes, AKS, IaC 🏢 Description: Posting Type Hybrid / Remote Job Overview We are looking for a Senior Software Engineer to join our Engineering Platform team, where you'll help build the cloud-native backbone that powers Relativity’s development ecosystem. You will work on high-impact initiatives that shape how our engineers build, test, deploy, and scale software—driving technical excellence across the company. As part of a growing and financially stable organization, you’ll have the opportunity to contribute in a dynamic, fast-moving environment that values autonomy, ownership, and practical action over excessive process. Our platform engineers are trusted with solving complex problems at scale, and empowered to make real decisions that improve the day-to-day experience of hundreds of developers. Job Description and Requirements Key Responsibilities Design, build, and operate platform services and developer tooling using .NET and Microsoft Azure that are scalable, secure, and reliable. Lead the development of Infrastructure as Code (IaC) components that automate and standardize cloud infrastructure. Drive adoption of DevOps practices and CI/CD automation across engineering teams. Collaborate closely with internal stakeholders to build reusable capabilities that improve development speed and consistency. Integrate observability, performance monitoring, and self-service tooling into the platform ecosystem. Mentor and support engineers through code reviews, technical discussions, and knowledge-sharing. Proactively identify areas of improvement, experiment with solutions, and deliver results—embracing our bias toward action. Contribute to initiatives that embed AI/ML into platform services and developer workflows. Qualifications 5+ years of software development experience with a strong command of C# and the .NET ecosystem. Deep hands-on experience with Azure services and cloud-native application patterns. Proficiency with Infrastructure as Code tools such as Terraform, Bicep, or ARM templates. Experience building or supporting CI/CD systems and modern DevOps pipelines. Familiarity with containers and orchestration tools (e.g., Docker, Kubernetes, AKS). Demonstrated success working in Agile product teams and collaborating cross-functionally. Strong problem-solving, communication, and mentorship skills. Bonus: Exposure to AI/ML tools or interest in applying AI to platform and engineering problems. Why Join Us? Be part of a growing, stable company where your work has long-term impact. Thrive in a fast-paced, evolving environment with clear opportunities for technical and career growth. Work in an engineering culture that values initiative, speed, and ownership. Shape the tools, practices, and environments that empower hundreds of engineers daily. Contribute to a mission-driven organization committed to innovation and excellence. Relativity is a diverse workplace with different skills and life experiences—and we love and celebrate those differences. We believe that employees are happiest when they're empowered to be their full, authentic selves, regardless how you identify. Benefit Highlights: Comprehensive health, dental, and vision plans Parental leave for primary and secondary caregivers Flexible work arrangements Long-term incentive program Training investment program All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. Relativity is committed to competitive, fair, and equitable compensation practices. This position is eligible for total compensation which includes a competitive base salary, an annual performance bonus, and long-term incentives. The expected salary range for this role is between following values: 208 000 and 312 000PLN The final offered salary will be based on several factors, including but not limited to the candidate's depth of experience, skill set, qualifications, and internal pay equity. Hiring at the top end of the range would not be typical, to allow for future meaningful salary growth in this position. Required Skills: Automation, Data Analysis, Database Management, Network Architecture, Performance Optimizations, Problem Solving, Project Management, Software Development, System Designs, Technical Leadership