Software Engineer - ML Data Platform (up to £110k + Equity)

Zettafleet; Greater London; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Equity

Discretionary bonus

Job summary

Zettafleet is hiring a Software Engineer – Machine Learning Data Platform in London. Design and build a scalable data platform that ingests large training datasets, focusing on reliability, quality and performance.

Work with the founding team and deploy services on AWS using Terraform, Python, ECS/Lambda, and Postgres. Ideal candidates have 2–3 years in backend development, strong CS fundamentals, cloud-native experience (AWS/GCP/Azure), and a passion for data quality and scalable architectures.

Qualifications

• 2–3 years of backend data-platform/ETL experience.
• Cloud platforms experience (AWS/GCP/Azure) and IaC (Terraform).
• Strong CS fundamentals; solid data structures/algorithms.
• Analytical problem-solving; ability to break down complex problems.
• Excellent collaboration and communication skills.

Responsibilities

• Design and build a scalable data platform that ingests and processes large training datasets.
• Create methodologies and metrics to understand data quality and distribution.
• Architect data validation, integrity and safety for ML models.
• Operate with a high degree of autonomy and ownership over work.
• Collaborate with the founding team to enforce best practices and standards.

Skills

Backend development

Cloud-native

Algorithms & CS fundamentals

Problem solving

Collaboration & communication

Tools

AWS

Terraform

Docker

Postgres

SNS/SQS

Redis

ECS

Lambda

Job description

Role: Software Engineer – Machine Learning Data Platform

Location: London (Liverpool Street)

Employment Type: Full-time and Permanent

Remuneration: £70-110k Base Salary + Discretionary Bonus + Equity

Zettafleet is an end-to-end platform for businesses and organisations to train their own LLM on their proprietary data. We can use non-conventional AI hardware and automatically source and combine GPUs (and other types of AI accelerators) from multiple cloud providers, enabling users to optimise for cost, duration or geographic location of the training.

The founding team consists of Cambridge graduates and former engineers at Google, Meta, Microsoft and Amazon. We are backed by prominent investors from the US and the UK, including institutional VC funds and C-level executives of global technology companies.

In this role, you will:

• Design and develop a highly-scalable data platform capable of ingesting and processing hundreds of terabytes of training data.
• Design and develop methodologies and metrics to better understand the underlying quality, structure and distribution of training data.
• Architect training data validation, integrity and safety mechanisms for state-of-the-art ML models.
• Be given a high degree of autonomy and ownership over your work.
• Work closely with the founding team and contribute towards best practices, standards, and culture of the company.
• We use and leverage AWS as much as possible and manage it with Terraform.
• Services are written in Python and deployed to ECS or Lambda.
• We use Postgres, SNS/SQS and Redis.
• We have good end-to-end test coverage and are confident in our deployments.

What we are looking for:

• Back-end development: At least 2–3 years of industry experience in back-end engineering developing data platforms or large-scale extract-transform-load (ETL) pipelines.
• Cloud-native technologies: Experience in developing and deploying in cloud platforms (e.g., AWS, GCP or Azure), an understanding of containerisation (e.g., Docker) and infrastructure-as-code software (e.g., Terraform).
• Algorithms and data structures: Excellent understanding of core CS fundamentals, including common abstract data structures and algorithms with the ability to apply them to optimise production systems.
• Problem solving: Strong analytical problem-solving skills and attention to detail. You have the ability to break down complex problems into actionable tasks.
• Collaboration and communication: Excellent interpersonal and communication skills with a desire to learn.

We would like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about data and enjoy solving complex challenges, we would love to hear from you.

Nice to have:

• Machine Learning: Applied or theoretical background in machine learning and familiarity with fundamental concepts in the field.
• Open-source: Contributions to and experience in open-source projects.
• Startup experience: Experience with a startup work environment and wider ecosystem.

How we work:

We are a small, early-stage team with big ambitions. We move quickly, care deeply about what we build, and take pride in doing things well.

This is a high-ownership environment where people who are proactive, curious, and motivated by impact tend to thrive.

• Work in an environment conducting cutting-edge research in AI.
• Competitive salary, equity and benefits package.
• 28 days + public holidays allowance.
• Opportunities for professional growth and progression with your career.
• Work on challenging engineering problems that have a real impact on the industry.
• Work with high-profile customers and technology partners.