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Salary: USD 175,000 - 230,000 / annual
Panthalassa is a renewable energy and ocean technology company developing devices (nodes) that capture energy from the ocean in harsh conditions without human maintenance. As a Senior Software Engineer on the Core Systems team, you will design, develop, and optimize onboard data systems that enable reliable communication between ocean-deployed nodes and shore-side infrastructure.
You will own the network-facing software layers that allow nodes to communicate reliably with shore, from low-level connection handling to higher-level data exchange protocols. Key responsibilities include designing egress pipelines that balance data fidelity, timeliness, and bandwidth constraints; collaborating on APIs and schemas for control and data exchanges between subsystems; and ensuring software degrades gracefully during connectivity loss with proper buffering, retry logic, and prioritized retransmission.
You will partner with network and security engineers to review onboard software for vulnerabilities, harden network-facing services, and ensure interfaces meet security standards before deployment. You will analyze system performance and implement optimizations for latency, throughput, and resource efficiency. Additionally, you will extend and improve existing unit testing frameworks, integration tests, and CI/CD pipelines, and strengthen code review, documentation, and software engineering practices within the team.
The role requires strong interpersonal skills and the ability to thrive in a creative, collaborative environment where you own designs from concept through fabrication and deployment at sea. You will communicate effectively across team and discipline boundaries and participate in design reviews and architecture discussions.
The company is a public benefit corporation headquartered in Portland, backed by leading venture capitalists, philanthropic investors, and university endowments. The team includes engineers from SpaceX, Blue Origin, Boeing, Tesla, Apple, Google, Amazon, and other leading organizations.
REQUIREMENTS:
- 7+ years of software development experience
- 3+ years of experience with data-intensive or mission-critical systems
- Proficiency in a systems programming language
- Proficiency with version control
- Competency with CI/CD pipelines for automated tests and deployment
- Experience building or maintaining network-facing software (connection lifecycles, protocol implementation, communication reliability in production)
- Understanding of computer networking fundamentals (L2–L4), transport protocols, congestion control, and distributed systems
- Experience designing systems for constrained, high-latency, intermittent, and/or expensive links (satellite, maritime, remote ops)
- Familiarity with security principles for networked systems (authentication/authorization, encryption, key management)
- Ability to work in fast-paced, self-starting atmosphere
- Ability to communicate thoughtfully and empathetically with people from diverse backgrounds
- Motivation and curiosity to learn concepts across many disciplines
DESIRED QUALIFICATIONS:
- Experience with real-time or safety-adjacent systems where reliability is critical
- Background in robotics, aerospace, or marine systems with focus on data processing
- Familiarity with time-series databases, streaming analytics, and data pipelines for monitoring
- Experience with containerized build environments
ADDITIONAL REQUIREMENTS:
- Intermittently able to work longer hours and weekends to support critical needs
- Travel to vendors and test sites as needed
