Senior Backend Engineer

Senior Backend Engineer

Full-Time 43200 - 72000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Build high-performance banking infrastructure and integrate with payment providers.
  • Company: Join a mission-driven startup focused on climate finance for underserved communities.
  • Benefits: Enjoy top compensation, equity ownership, and work with industry-leading talent.
  • Why this job: Tackle meaningful problems with autonomy and direct customer interaction in a collaborative environment.
  • Qualifications: STEM degree, 3+ years backend experience, strong JVM skills, and Postgres knowledge required.
  • Other info: No relocation or visa support available; startup or FinTech experience preferred.

The predicted salary is between 43200 - 72000 £ per year.

Do you want to tackle one of the biggest problems of our time while expanding financial access for communities on the frontlines of climate change? We’re working with a Fintech / Climate mission-driven startup that’s building the financial infrastructure to channel climate finance directly to underserved regions globally. They are assembling a world-class engineering team to solve significant problems, with high autonomy and high ownership.

What You’ll Be Doing:

  • Build a high-performance core banking/financial infrastructure.
  • Integrate with payment and verification providers (MRV tools).
  • Design scalable systems with rapid iteration in mind.
  • Work closely with customers and the field—this is not a desk-only job.
  • Help establish a culture grounded in pragmatism, scientific thinking, and collaboration.

About You:

  • STEM degree from a top university.
  • 3+ years of backend development experience.
  • Strong with JVM-based languages.
  • Deep Postgres knowledge (e.g. partitioning, replication, GIST indexes).
  • Familiar with AWS/cloud infrastructure.
  • Startup or FinTech experience strongly preferred.

Nice-to-Have:

  • Experience in the climate/carbon ecosystem.
  • Experience building ledgers, balances, or payment systems.

You’ll Fit if You:

  • Want to work on meaningful, unsolved, ambitious problems.
  • Thrive with autonomy and direct customer interaction.
  • Fast-moving, collaborative teams energise you.
  • Don’t mind getting your hands dirty—sometimes literally.

Perks:

  • Top quartile compensation.
  • High equity ownership.
  • Work alongside talent from Revolut, Stripe, Google, Uber, Monzo, and more.
  • Backed by leading climate and fintech investors.

At this time, we are unable to proceed with any candidate that needs relocation or visa support.

Senior Backend Engineer employer: Heart Mind Talent

Join a mission-driven startup at the forefront of Climate FinTech, where you can make a tangible impact by building financial infrastructure that supports underserved communities facing climate challenges. Enjoy a dynamic work culture that values autonomy, collaboration, and scientific thinking, while benefiting from top-tier compensation and equity ownership. With opportunities to work alongside industry leaders and tackle ambitious problems, this role offers a unique chance for personal and professional growth in a fast-paced environment.
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Contact Detail:

Heart Mind Talent Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Backend Engineer

✨Tip Number 1

Familiarise yourself with the latest trends in climate finance and how fintech is addressing these challenges. This knowledge will not only help you during interviews but also demonstrate your genuine interest in the company's mission.

✨Tip Number 2

Network with professionals in the climate and fintech sectors. Attend relevant meetups or webinars to connect with like-minded individuals and potentially gain insights into the company culture and expectations.

✨Tip Number 3

Prepare to discuss your previous projects in detail, especially those involving backend development and cloud infrastructure. Be ready to explain your thought process and the impact of your work on the overall project.

✨Tip Number 4

Showcase your problem-solving skills by thinking of innovative solutions to common challenges in backend engineering. Be prepared to share examples of how you've tackled complex issues in past roles.

We think you need these skills to ace Senior Backend Engineer

Backend Development
JVM-based Languages
PostgreSQL Expertise
Cloud Infrastructure (AWS)
System Design
Integration with Payment Providers
Scalability Principles
Collaboration Skills
Customer Interaction
Problem-Solving Skills
Agile Methodologies
Data Partitioning and Replication
Technical Communication
Startup Environment Experience

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your backend development experience, particularly with JVM-based languages and Postgres. Include specific projects or achievements that demonstrate your ability to build scalable systems and work in a collaborative environment.

Craft a Compelling Cover Letter: In your cover letter, express your passion for tackling climate change through financial technology. Mention any relevant experience in the FinTech sector and how it aligns with the company's mission. Be sure to convey your enthusiasm for working directly with customers.

Showcase Relevant Skills: When filling out your application, emphasise your technical skills, especially in cloud infrastructure like AWS. If you have experience with payment systems or the climate ecosystem, make sure to highlight that as well.

Prepare for Technical Questions: Anticipate technical questions related to backend development and system design. Be ready to discuss your previous projects in detail, focusing on your problem-solving approach and how you’ve contributed to team success in fast-paced environments.

How to prepare for a job interview at Heart Mind Talent

✨Show Your Passion for Climate Impact

Make sure to express your enthusiasm for tackling climate change through technology. Discuss any relevant projects or experiences that demonstrate your commitment to sustainability and how you can contribute to the company's mission.

✨Demonstrate Technical Expertise

Be prepared to showcase your backend development skills, particularly with JVM-based languages and Postgres. Bring examples of past projects where you designed scalable systems or integrated with payment providers, as this will highlight your technical capabilities.

✨Emphasise Collaboration and Customer Interaction

Since the role involves working closely with customers, share experiences where you successfully collaborated with teams or clients. Highlight your ability to communicate effectively and adapt based on customer feedback, which is crucial in a startup environment.

✨Prepare for Problem-Solving Scenarios

Expect to face technical challenges during the interview. Prepare to discuss how you approach problem-solving, especially in high-pressure situations. Use examples from your previous work to illustrate your thought process and decision-making skills.

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