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Location
In office (Austin)
Seniority
Senior · 5+ years exp
Visa
H-1B filings in 12 months: 2
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 14, 2026. First seen by Alion on Nov 13, 2026. CesiumAstro scores A on the Alion truth index.

Overview
Company
Impact
Profile match
CesiumAstro is an American company founded in Austin in 2017 that builds active phased array communications payloads for satellites, aircraft and defence platforms. Its systems are software-defined and electronically steered, which lets a moving platform track several links at once without mechanical antennas, and the company manufactures them in house rather than integrating third-party subsystems. It sells mainly to defence customers and satellite operators, has raised venture funding from investors including Airbus Ventures and Lightspeed, and operates facilities in Austin, Colorado and the United Kingdom.

We are looking to add a Senior Software Engineer to our team. In this role you will develop, integrate, and maintain software supporting products and platforms. This role applies established software engineering principles to develop software solutions, optimize application performance, and resolve complex software engineering challenges from concept through integration, verification, and production.

Working cross-functionally with software, systems, electrical, hardware, quality, and test engineering teams, this role supports multidisciplinary engineering efforts, contributes to technical investigations, and promotes continuous improvement.

JOB DUTIES AND RESPONSIBILITIES

  • Develop software applications, software components, libraries, system interfaces, and application features supporting product development.
  • Conduct software implementation, debugging, code integration, unit testing, software optimization, and feature development activities.
  • Evaluate software requirements, interface specifications, architecture documentation, source code, and technical documentation to support implementation.
  • Develop and conduct software verification, validation, debugging, integration, and troubleshooting activities.
  • Analyze software test results, system behavior, performance data, and engineering observations to resolve technical issues.
  • Recommend software updates, defect fixes, engineering changes, and corrective actions that improve software quality, reliability, maintainability, and performance.
  • Collaborate with software, systems, electrical, hardware, quality, and test engineering teams throughout software development and integration.
  • Prepare software documentation, technical reports, engineering change documentation, software release documentation, and interface documentation.
  • Participate in code reviews, design reviews, technical investigations, customer support activities, software integration, and software release initiatives.
  • Evaluate software engineering methods, development practices, coding standards, software architectures, and development processes to identify improvement opportunities.
  • Validate compliance with engineering standards, company procedures, customer requirements, and software development best practices.
  • Contribute to continuous improvement initiatives that strengthen software quality, reliability, maintainability, engineering efficiency, and product performance.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Bachelor's degree in computer science, software engineering, computer engineering, electrical engineering, or a related technical field with 5-8 years of related experience, or Master's degree with 3-6 years of related experience, or PhD with 0-3 years of related experience in software engineering, application development, embedded software, software architecture, or a related technical discipline.
  • Strong knowledge of software engineering principles, software development lifecycles, data structures, algorithms, and object-oriented programming.
  • Experience with programming languages, version control systems, integrated development environments, debugging tools, and software optimization techniques.
  • Knowledge of software architecture, software design patterns, operating systems, interface development, and application design.
  • Understanding of software verification, engineering documentation, coding standards, software configuration management, continuous integration, and release management.
  • Proficiency in system integration, automated build processes, software performance optimization, defect resolution, and software quality practices.
  • Proficiency with Microsoft Office Suite including Outlook, Word, Excel, PowerPoint, and Teams.
  • Software development tools, e.g. C, C++, C#, Python, Java, Git, Visual Studio, Eclipse, or equivalent applications.
  • Engineering documentation, project management, and collaboration tools, e.g. Jira, Confluence, Azure DevOps, or equivalent applications.
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