Application Guide
How to Apply for Senior Platform Software Engineer
at Scope3
🏢 About Scope3
Scope3 is a climate tech company on a mission to eliminate climate risk by providing advanced emission reduction solutions for the advertising industry. They are building an AI-native advertising marketplace that directly addresses the environmental impact of digital ads, making them a unique player at the intersection of sustainability and technology. Working here means contributing to a product that has a tangible positive impact on the planet while being part of a small, ambitious team.
About This Role
As a Senior Platform Software Engineer, you'll be the force multiplier for the entire engineering team, building internal tooling, infrastructure, and developer experience to boost productivity and reliability. You'll also have the opportunity to dive into product engineering, directly shaping the AI-native advertising marketplace. This role is perfect for someone who enjoys both strategic platform work and hands-on product development, and who wants to make a significant impact in a mission-driven company.
💡 A Day in the Life
You'll start your day by checking dashboards and alerts for any infrastructure issues, then dive into building a new developer tool to automate deployment processes. In the afternoon, you might pair with a product engineer to implement a new feature for the marketplace, leveraging your platform expertise to ensure scalability. You'll end the day reviewing code, documenting best practices, and collaborating with the team on long-term infrastructure roadmap.
🚀 Application Tools
🎯 Who Scope3 Is Looking For
- You have 5+ years of experience in platform engineering, infrastructure, or developer productivity roles, with a proven track record of building scalable systems.
- You're a polyglot programmer comfortable with modern languages (e.g., Go, Python, TypeScript) and have deep experience with cloud infrastructure (AWS, GCP) and containerization (Kubernetes, Docker).
- You have strong experience with CI/CD pipelines, observability tools (e.g., Prometheus, Grafana), and automating workflows to improve developer velocity.
- You're a self-starter who can identify inefficiencies, propose solutions, and drive them to completion, while also being willing to jump into product code when needed.
- You're passionate about climate tech and want to use your skills to make a positive environmental impact.
📝 Tips for Applying to Scope3
Highlight specific projects where you improved developer productivity or infrastructure reliability, quantifying the impact (e.g., reduced build times by 40%).
Showcase your experience with AI/ML infrastructure or platforms, as Scope3 is building an AI-native marketplace – even if it's just side projects or coursework.
In your resume and cover letter, mention your familiarity with the ad tech industry or digital advertising supply chain, as this domain knowledge is highly valuable.
If you have experience with sustainability or climate tech, make it prominent – it shows alignment with the company's mission.
Tailor your application to emphasize your ability to work in a small, agile team and your willingness to take on diverse responsibilities, not just platform work.
✉️ What to Emphasize in Your Cover Letter
["Express genuine passion for Scope3's mission to eliminate climate risk and how your skills can directly contribute to that goal.", 'Highlight your experience in building internal tools and infrastructure that have a multiplier effect on engineering teams, with specific examples.', "Mention your adaptability and eagerness to also work on product features, showing you're not siloed into platform-only work.", 'Demonstrate your understanding of the challenges in scaling AI systems and how you can help build a robust foundation for their marketplace.']
Generate Cover Letter →🔍 Research Before Applying
To stand out, make sure you've researched:
- → Read about Scope3's methodology for measuring and reducing carbon emissions in ad supply chains – understand their unique value proposition.
- → Look into their engineering blog or tech talks (if any) to get a sense of their tech stack and engineering culture.
- → Research the digital advertising industry's carbon footprint problem and how AI is being used to optimize ad placements for sustainability.
- → Check out their recent funding news or partnerships to understand their growth trajectory and strategic direction.
💬 Prepare for These Interview Topics
Based on this role, you may be asked about:
⚠️ Common Mistakes to Avoid
- Don't submit a generic cover letter that doesn't mention Scope3 or climate tech – they want to see genuine interest.
- Avoid focusing only on your product engineering experience without highlighting your platform/infrastructure skills – this role is primarily about platform.
- Don't underestimate the importance of the AI-native aspect – failing to mention any AI/ML experience or interest could make you seem less aligned.
📅 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:
Application Review
1-2 weeks
Initial Screening
Phone call or written assessment
Interviews
1-2 rounds, usually virtual
Offer
Congratulations!