Application Guide

How to Apply for Senior Guidance, Navigation, and Control (GNC) Engineer

at Panthalassa

🏢 About Panthalassa

Panthalassa is pioneering sustainable energy by tapping into the immense power of ocean currents, offering a unique opportunity to work on cutting-edge renewable energy technology. The company's remote-first culture and mission-driven focus make it an exciting place for engineers who want to make a tangible impact on climate change.

About This Role

As a Senior GNC Engineer, you'll design and implement the brains of Panthalassa's underwater energy nodes, ensuring they navigate and operate autonomously for years without human intervention. Your work directly enables reliable, cost-effective ocean energy generation, solving complex real-world control problems in a harsh environment.

💡 A Day in the Life

A typical day might start with reviewing telemetry from a test node and analyzing estimator performance in Python, then debugging a C++ controller issue in the HIL simulator. After lunch, you could collaborate with the mechanical team to update plant models based on new field data, and end the day brainstorming solutions for a navigation anomaly observed in the latest deployment.

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🎯 Who Panthalassa Is Looking For

  • Experienced in designing state estimation and control algorithms for complex dynamic systems, preferably underwater or marine vehicles.
  • Proficient in Python for rapid prototyping and analysis, with strong production-level coding skills in C/C++ or Rust for embedded systems.
  • Hands-on experience with HIL/SIL simulation and validation, as well as system identification from experimental data.
  • Comfortable with failure mode analysis and designing for long-term unattended operation, with a systems engineering mindset.

📝 Tips for Applying to Panthalassa

1

Highlight any experience with underwater robotics, AUVs, or marine systems, even if from academic projects, as it directly relates to the ocean environment.

2

Showcase your proficiency in both high-level Python and low-level systems programming (C/C++/Rust) in your resume, with specific examples of production code.

3

Include details about your experience with HIL/SIL testing, especially if you've set up such environments from scratch.

4

Mention any work on system identification or modeling from real-world data, as it's crucial for tuning estimators.

5

Tailor your cover letter to emphasize your passion for renewable energy and ocean technologies, not just generic control systems experience.

✉️ What to Emphasize in Your Cover Letter

["Express genuine enthusiasm for ocean energy and Panthalassa's mission to combat climate change.", 'Detail your specific experience with state estimation and control in challenging environments, especially underwater or autonomous systems.', 'Emphasize your ability to handle failure modes and design for reliability over multi-year deployments.', 'Showcase your cross-functional skills: from algorithm design to production coding and field testing.']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Study Panthalassa's technology: understand how their nodes convert ocean currents into electricity and the specific control challenges (e.g., variable flow, biofouling).
  • → Read about the company's recent milestones or pilots to understand their current stage and future goals.
  • → Familiarize yourself with common underwater vehicle dynamics and sensor suites (e.g., IMUs, DVLs, pressure sensors).
  • → Look into the regulatory and environmental aspects of ocean energy, as they may influence node navigation constraints.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Describe a time you tuned a Kalman filter or other estimator for a real-world system. What challenges did you face?
2 How would you design a control system for a node that must operate autonomously for 5 years? Discuss failure modes.
3 Walk us through your experience with HIL simulation. How did you validate your models against real data?
4 Explain your approach to system identification from noisy experimental data.
5 How do you prioritize between simulation fidelity and computational efficiency for on-target code?
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⚠️ Common Mistakes to Avoid

  • Don't focus solely on aerospace or automotive GNC experience without relating it to underwater or marine systems; emphasize transferable skills.
  • Avoid vague claims like 'strong Python skills' without concrete examples of projects or codebases you've contributed to.
  • Don't neglect the 'multi-year unattended endurance' requirement; failing to address reliability and fault tolerance can hurt your application.

📅 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

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Good luck with your application to Panthalassa!

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