Application Guide

How to Apply for Senior Software Engineer, Core Systems

at Panthalassa

🏢 About Panthalassa

Panthalassa is at the forefront of sustainable energy, developing technology to harness ocean power. Working here means contributing to a mission-driven team tackling one of the biggest challenges of our time, with the flexibility of remote work and the excitement of building cutting-edge systems for harsh marine environments.

About This Role

This role is critical to ensuring reliable data collection and communication from ocean-deployed Nodes. You'll design and maintain telemetry pipelines and network software that operate under extreme constraints like high latency and intermittent connectivity, directly enabling the success of our energy platform.

💡 A Day in the Life

You'll start by reviewing telemetry data from deployed Nodes, then collaborate with network engineers to tweak communication protocols. Later, you might write Rust code for a new data compression algorithm or debug an intermittent connectivity issue using logs from a test Node in a simulated ocean environment.

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🎯 Who Panthalassa Is Looking For

  • You have 7+ years of experience, with at least 3 in data-intensive or mission-critical systems, and have shipped production code in Rust or C++.
  • You've built network-facing software and have a solid grasp of L2–L4 networking, including experience with protocols like TCP/UDP, TLS, and HTTP/2.
  • You've designed systems for constrained links (satellite, maritime) and know how to handle packet loss, high latency, and bandwidth limitations.
  • You're comfortable with CI/CD pipelines, testing frameworks, and collaborating with security and network engineers to harden systems.

📝 Tips for Applying to Panthalassa

1

Tailor your resume to highlight experience with satellite or maritime communication systems, even if from a different domain (e.g., IoT, remote sensing).

2

Showcase specific examples of systems you've built for intermittent or high-latency links, including how you handled data integrity and graceful degradation.

3

Mention any experience with Rust—even if not primary—as it's a key language for the team.

4

Include a link to a GitHub repo or project that demonstrates your systems programming skills and networking knowledge.

5

In your cover letter, explicitly connect your past work to Panthalassa's mission of sustainable ocean energy.

✉️ What to Emphasize in Your Cover Letter

['Emphasize your experience with data-intensive systems in constrained environments (e.g., satellite, underwater, remote IoT).', 'Highlight your proficiency in Rust or C++ and any work with network-facing software and APIs.', 'Show your understanding of the challenges in ocean energy—harsh conditions, limited bandwidth, need for reliability.', 'Express enthusiasm for contributing to a mission-driven team and working on impactful climate technology.']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Read about Panthalassa's technology on their website, especially any publicly available details about Node design and communication.
  • → Look into the challenges of satellite communication for remote IoT devices, including protocols like Iridium or Starlink.
  • → Study common failure modes in underwater or marine electronics and how software can mitigate them.
  • → Research the company's leadership and recent news to understand their current stage and future plans.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Design a telemetry system for a Node with satellite uplink: how to handle data prioritization, compression, and retransmission.
2 Explain how you'd implement graceful degradation when connectivity is lost for extended periods.
3 Walk through a past project where you optimized a network pipeline for high latency or low bandwidth.
4 How would you test a system that must operate reliably in a harsh ocean environment?
5 Discuss your experience with Rust's ownership model and how it applies to concurrent data pipelines.
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⚠️ Common Mistakes to Avoid

  • Don't focus only on web development or cloud-scale systems—this role is about embedded, constrained environments.
  • Avoid generic statements about 'passion for sustainability' without connecting it to your technical skills.
  • Don't neglect to mention experience with systems programming languages; listing Python or Java as primary may not fit.

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

✓

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Panthalassa!

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