Database Reliability Engineer

Fuse Energy, LLC; Greater London; On-site; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Competitive salary

Equity sign-on bonus

Biannual bonus scheme

Fully expensed tech

Paid annual leave

Breakfast and dinner allowance

Job summary

Fuse Energy, LLC is seeking a backend engineer with a focus on data to own and manage our database infrastructure. The ideal candidate will have over 3 years of experience, proficient in SQL and Python, and be skilled in designing data models that reflect real-world business logic.

You will be responsible for building scalable data pipelines and ensuring the reliability and performance of our data systems. We offer competitive salaries and benefits, including a biannual bonus scheme and tailored tech support.

Qualifications

• 3+ years of experience in backend engineering or data-focused engineering.
• Proficient in writing clean SQL and Python.
• Hands-on experience with relational databases, particularly Postgres.
• Strong understanding of data validation and quality assurance practices.

Responsibilities

• Own the reliability, performance, and scalability of database infrastructure.
• Build and maintain scalable data pipelines.
• Design and evolve analytical schemas.
• Migrate data from Postgres to ClickHouse.

Skills

SQL proficiency

Python proficiency

Data validation and testing

Data modeling

Infrastructure as Code (IaC)

Tools

Postgres

ClickHouse

DBT

AWS CDK

Pulumi

Job description

Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $210M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more.

We’re creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.

But we’re not stopping there. We’re also building the Energy Network: a decentralised platform of smart devices to electrify our homes, shifting usage to off-peak hours and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.

Responsibilities

• Own the reliability, performance, and scalability of Fuse's database infrastructure across Postgres and ClickHouse
• Build and maintain scalable, reliable data pipelines to support analytics, reporting, and product needs
• Own the design and evolution of analytical schemas, translating business logic into structured, intuitive data models
• Migrate and transform data from Postgres into ClickHouse, ensuring performance and reliability
• Develop and maintain DBT models that reflect our business domain and make data easily accessible for teams
• Implement tests and data quality checks to ensure reliable and trustworthy datasets
• Identify and eliminate duplicates, improve data consistency, and enforce clean modelling standards
• Manage all database and infrastructure changes through IaC — minimise direct DB modifications

Qualifications

• 3+ years of experience in a backend engineering or data-focused engineering role
• Writes the cleanest SQL you've ever seen — proficiency in Python and SQL is non-negotiable
• Hands‑on experience with relational databases, particularly Postgres
• Experience designing schemas and building data models that reflect real‑world business logic
• Familiarity with DBT or similar data transformation frameworks
• Strong understanding of data validation, testing, and quality assurance practices
• Manages all infrastructure through IaC tooling (Pulumi, AWS CDK) — treats the database as code, not a manual system
• Grasps new business domains quickly — able to translate unfamiliar logic into clean, intuitive data models without hand-holding

Bonus

• Experience with ClickHouse or columnar databases
• Familiarity with cloud-based data orchestration tools (Dagster, Step Functions)
• CI/CD practices for data pipelines and transformations
• Experience operating databases at scale in a production environment

Benefits

• Competitive salary and an equity sign‑on bonus
• Biannual bonus scheme
• Fully expensed tech to match your needs
• Paid annual leave
• Breakfast and dinner allowance for office based employees