Application Guide
How to Apply for ClimateTech - Senior Software Engineer - Backend (all genders)
at Global Changer
🏢 About Global Changer
Global Changer is a climate tech startup building an automated data platform to help B2B companies achieve Net-Zero emissions efficiently. Unlike generic SaaS companies, their mission directly tackles the climate crisis through scalable software solutions. Working here means contributing to tangible environmental impact while operating in a fast-paced, remote-first EU tech environment.
About This Role
As a Senior Backend Engineer, you'll architect and maintain big-data-ready, resilient services that power the company's Net-Zero platform. You'll translate sustainability requirements from cross-functional teams into scalable features, directly enabling businesses to reduce their carbon footprint through automated data solutions.
💡 A Day in the Life
A typical day involves pairing with another engineer on a resilient service feature, reviewing pull requests from your cross-functional team, and collaborating with the Sustainability Team to refine technical requirements for new Net-Zero features. You might spike on a big-data scalability challenge in the morning and present findings to the CTO and Product Manager in the afternoon.
🚀 Application Tools
🎯 Who Global Changer Is Looking For
- Has 5+ years building production backend systems, ideally with Ruby on Rails experience, and can demonstrate scaling challenges they've solved
- Combines technical excellence with passion for climate action, able to articulate why they want to work specifically on Net-Zero solutions rather than just any tech role
- Thrives in collaborative, agile environments with pair programming experience and a hands-on mentality for early-stage startup challenges
- Possesses computer science fundamentals (degree preferred) plus experience working closely with product teams to translate customer needs into technical solutions
📝 Tips for Applying to Global Changer
Highlight specific Ruby on Rails or similar web framework experience with metrics (e.g., 'optimized API response times by X%') rather than just listing technologies
Demonstrate climate passion concretely - mention climate tech projects, relevant reading, or personal sustainability initiatives beyond generic interest
Showcase early-stage startup experience by describing how you handled ambiguity, wore multiple hats, or contributed beyond pure coding
Prepare examples of working with non-technical stakeholders (like sustainability teams) to translate requirements into technical solutions
Tailor your resume to emphasize big-data systems, resilient service design, and cross-functional collaboration mentioned in the job description
✉️ What to Emphasize in Your Cover Letter
['Your motivation for working specifically on climate tech and Net-Zero solutions, not just any backend role', 'Concrete examples of building resilient, scalable backend systems (mention technologies and outcomes)', 'Experience collaborating in agile, cross-functional teams with product managers and domain experts', "How your hands-on mentality and startup experience align with Global Changer's stage and mission"]
Generate Cover Letter →🔍 Research Before Applying
To stand out, make sure you've researched:
- → Explore the Net-Zero landscape for B2B companies to understand the problem space Global Changer operates in
- → Investigate the company's tech stack through engineering blogs, GitHub if public, or employee LinkedIn profiles
- → Understand common challenges in automated carbon accounting and emissions data management
- → Research the EU climate policy context and how it affects B2B sustainability requirements
💬 Prepare for These Interview Topics
Based on this role, you may be asked about:
⚠️ Common Mistakes to Avoid
- Treating this as just another backend role without demonstrating specific interest in climate tech or Net-Zero missions
- Overemphasizing large-company experience without showing adaptability to early-stage startup ambiguity and pace
- Focusing solely on technical skills without showcasing collaboration with cross-functional, non-technical teams
📅 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!
Ready to Apply?
Good luck with your application to Global Changer!