Senior Software Developer

Iridium Satellite, LLC•Philadelphia, PA

8d•$120,000 - $160,000•Hybrid

About The Position

Join us as a Senior Software Developer and help power the mission systems that keep national security space operations running. In this role, you’ll be responsible for identifying and autonomously implementing ideas and solutions as it relates to the design and delivery of mission‑critical ground segment software that connects satellites, ground networks, and operators in real time. You’ll be embedded in a National Security Missions team focused on full‑lifecycle ground architecture, working shoulder‑to‑shoulder with experts across software, systems, and operations. Every day, you’ll tackle complex, real‑world problems whose solutions directly influence mission outcomes and protect critical national interests. If you want to build cutting‑edge space technologies in a fast‑paced, high‑visibility environment where your work truly counts, this role puts you at the center of the action. This position requires an active Top-Secret/SCI Clearance (A U.S. Security Clearance that has been active in the past 24 months is considered active).

Requirements

Bachelor of Science degree in Computer Science, Software Engineering, or a related engineering discipline
8+ years of hands-on software development experience, with a strong focus on network-level or systems-level programming
Proficiency in Python and Java, with demonstrated ability to write production-grade code in both languages
Strong experience working in Linux-based environments, including Bash shell scripting for automation and system administration
Hands-on experience with RESTful APIs, HTTP protocols, WebSockets, and log aggregation/analytics tools such as the ELK stack (Elasticsearch, Logstash, Kibana) or equivalent
Working knowledge of both relational databases (e.g., PostgreSQL) and NoSQL databases (e.g., MongoDB)
Proven track record of delivering software within Agile-based development teams
Ability to design, implement, and maintain comprehensive unit and integration test suites, contributing effectively across the full software development lifecycle
Ability to comprehend and work from detailed technical documentation, specifications, and architecture diagrams
Excellent written and verbal communication skills, with the ability to clearly articulate products, deliverables, analyses, and technical issues to cross-functional teams and non-technical stakeholders
A confident, relationship-oriented professional who builds trust and rapport easily with leadership, peers, and colleagues across the organization
An analytical and creative problem-solver who can assess complex situations, think critically, and develop innovative, out-of-the-box solutions
A proactive team contributor who actively shares knowledge, provides constructive feedback, and mentors others to elevate the team’s capabilities
Strong organizational and time management skills, with the ability to prioritize your own workload—and potentially guide others—to consistently meet deadlines
A continuous learner with a growth mindset, eager to expand your skill set and develop deep expertise across the full suite of System Performance and Analysis software
Must be a US Citizen
This position requires an active Top-Secret/SCI Clearance (A U.S. Security Clearance that has been active in the past 24 months is considered active).

Nice To Haves

Experience in satellite operations ground segment environments, particularly in network management or packet-level data handling
Familiarity with the Atlassian tool suite (Jira, Confluence, Bitbucket) in a professional development setting
Experience with Flight Dynamics, in the context of satellite missions, pertains to the function that determines, predicts, and controls a spacecraft’s orbit, attitude, and trajectory over its lifetime, including the maneuvers needed to achieve and maintain the desired flight path.
Experience with Mission planning, in the context of satellite ground and space systems, is the set of processes, tools, and rules used to translate mission objectives into time‑ordered, constraint‑compliant timelines of spacecraft, payload, and ground activities (including data collection and routing opportunities) across the full mission lifecycle.
Experience with Network Management pertains to continuously supervising and controlling all links and nodes across the space segment (LEO/MEO/GEO satellites and inter‑satellite links) and the ground segment (gateways, teleports, user terminals, terrestrial backhaul).
Containerization & Orchestration: Kubernetes, Docker, Podman, ArgoCD
CI/CD Pipelines & Artifact Management: GitLab, JFrog Artifactory, Bitbucket
Additional Programming Languages: C++, TypeScript, Perl
Data Formats & Query Languages: XML, JSON, SQL
Web Technologies: js, Apache Web Server
Security: Security vulnerability analysis and remediation procedures
Project & Development Tools: Atlassian suite including Jira, Git, Crucible, and Confluence
Architecture & Design Patterns: Microservices architectures and distributed system design
Testing: Automated testing frameworks and test automation strategies
Cloud Environments: Government (GovCloud) and commercial Amazon Web Services (AWS) cloud environments

Responsibilities

Collaborate with a multidisciplinary team to design, build, and deploy a state-of-the-art, highly resilient Ground System. Support end-to-end development, from system architecture and software design to integration, test (I&T), and operational deployment.
Build, configure, and maintain CI/CD pipelines and build environments to ensure secure, consistent, and repeatable software deployments across mission networks.
Play a key role in planning, coordinating, and executing software releases, ensuring strict alignment with stakeholder timelines, program schedules, and budget constraints.
Adhere to and systematically refine established protocols for change control, risk management, prioritization, and COTS (Commercial-off-the-Shelf) integration. Contribute your technical depth to formalize robust build/test procedures and process documentation.
Independently maintain accurate, up-to-date issue tracking, feature documentation, and project status across the development lifecycle utilizing Atlassian tools.
Translate complex ground segment concepts into clear, concise briefings, documentation, and written reports tailored for both highly technical engineering teams and non-technical government stakeholders.
Provide timely, well-informed technical input within your area of expertise to support stakeholder inquiries, system development, and cross-functional efforts.
Autonomously identify and implement robust software solutions to overcome complex architectural challenges, delivering secure, customer-driven mission capabilities.