Application Guide

How to Apply for Senior BackEnd Software Engineer (Python)

at DeepSea Technologies

🏢 About DeepSea Technologies

DeepSea Technologies is at the forefront of leveraging AI to reduce fuel consumption and emissions in commercial shipping, a critical industry for global trade and climate action. Their mission-driven work combines cutting-edge technology with tangible environmental impact, making it an ideal place for engineers who want their code to contribute to a greener planet.

About This Role

As a Senior BackEnd Software Engineer, you will architect and build the core services that power DeepSea's AI-driven platform, directly enabling ships to operate more efficiently. Your work on refactoring existing services and migrating to EKS will be pivotal in scaling the system to handle global shipping data, making a measurable difference in maritime decarbonization.

💡 A Day in the Life

You'll start by reviewing pull requests and monitoring system dashboards for any issues. Mid-morning, you might pair with a teammate to design a new microservice for ingesting real-time vessel data, then spend the afternoon refactoring an existing service to improve latency and deploying it to EKS with automated CI/CD pipelines.

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Interview Prep

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🎯 Who DeepSea Technologies Is Looking For

  • You have 8+ years of backend development experience with deep expertise in Python 3.8+ and async frameworks, especially FastAPI, and you can design high-performance APIs that handle real-time data streams.
  • You have a solid grasp of microservices architecture, message brokers (e.g., RabbitMQ, Kafka), and distributed systems, and you're comfortable refactoring monolithic services into scalable, maintainable components.
  • You are experienced with container orchestration (Kubernetes/EKS) and have a track record of migrating infrastructure to cloud-native environments, ensuring reliability and cost-efficiency.
  • You hold a BSc/MSc in Engineering, Computer Science, or a related field, and you are passionate about applying your skills to solve real-world environmental challenges.

📝 Tips for Applying to DeepSea Technologies

1

Highlight specific projects where you used FastAPI to build asynchronous, high-throughput APIs; mention performance metrics like latency reduction or throughput increase.

2

Emphasize experience with container orchestration migrations (e.g., moving from Docker Compose to Kubernetes/EKS) and how you ensured zero-downtime deployments.

3

Tailor your resume to show impact on system reliability and scalability; include examples of refactoring legacy code into microservices.

4

Research DeepSea's blog or press releases to understand their current tech stack and challenges, then mention how your skills directly address their needs (e.g., handling real-time vessel data).

5

In your cover letter, explicitly connect your work to environmental impact—mention any previous experience with sustainability or data-driven optimization.

✉️ What to Emphasize in Your Cover Letter

['Your passion for using technology to combat climate change, specifically in the shipping industry.', 'Proven track record with FastAPI and asynchronous Python in production systems, with concrete examples of performance improvements.', 'Experience in migrating to Kubernetes/EKS, detailing the challenges and how you ensured reliability during the transition.', 'Your ability to design and refactor distributed systems for scale, emphasizing maintainability and team collaboration.']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Read DeepSea's case studies or white papers on how their AI reduces fuel consumption; understand the data sources (e.g., AIS, weather, engine sensors) and how the backend ingests them.
  • → Check their engineering blog or GitHub for any open-source contributions or tech talks to understand their coding standards and tooling.
  • → Look into the commercial shipping industry's emission regulations (e.g., IMO 2023) to grasp the urgency and impact of DeepSea's solution.
  • → Review recent news or funding rounds to understand company growth and future direction, which can help you align your application with their roadmap.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Design a real-time data ingestion service for vessel telemetry using FastAPI and a message broker; discuss trade-offs between Kafka and RabbitMQ.
2 How would you approach refactoring a monolithic Python service into microservices? Walk through your strategy for incremental migration without downtime.
3 Describe your experience with Kubernetes/EKS: how do you handle service discovery, scaling, and monitoring in a production cluster?
4 Given a latency-sensitive API endpoint, how would you optimize it using async patterns, caching, or database indexing?
5 How do you ensure data consistency in a distributed system where multiple services update the same entity? Discuss patterns like event sourcing or sagas.
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⚠️ Common Mistakes to Avoid

  • Don't submit a generic resume without highlighting Python async frameworks or container orchestration experience; this role specifically needs FastAPI and EKS.
  • Avoid focusing only on frontend or full-stack experience; this is a pure backend role with a strong emphasis on distributed systems and infrastructure.
  • Do not ignore the environmental mission; failing to express genuine interest in sustainability may signal misalignment with company values.

📅 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 DeepSea Technologies!

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