Senior Backend Engineer (Darwin)

Posted:
4/1/2025, 2:12:34 AM

Location(s):
London, England, United Kingdom ⋅ England, United Kingdom

Experience Level(s):
Senior

Field(s):
Software Engineering

Workplace Type:
Remote

V7 turns human knowledge into trustworthy AI, powering products that solve our hardest problems. Our platform lets customers build no-code AI workflows that solve knowledge work with V7 Go, and leverage expert humans to improve frontier AI model knowledge with V7 Darwin.

V7 were recently ranked No 1 in Sifted’s top B2B companies for 2024 and raised a $33m Series A including the AI Fund @ Radical Ventures. We are backed by some of the best minds in AI, from Ashish Vaswani (Invented Transformers, the basis of GPT) Oriol Vinyals (Google Deepmind and Gemini co-lead), Christian Szegedy (X.ai) and AI leadership at Amazon, X, Isomorphic, and Google. V7 is used to power AI’s rollout at Fortune 500 organisations including Sony, Boston Scientific and Genentech.

Take a tour of our product in 90 seconds here**: https://www.youtube.com/watch?v=F-DMAN8gbjk**

Or watch the recent keynote of V7 Go’s launch: https://www.youtube.com/watch?v=Hit-RogJKvg

About the Role (Senior Backend Engineer)

We work with billions of training data images to leverage some of the world's most complex and general purpose AI models. Our back-end development is world-class and not short of challenges.

Team’s mission: Design, build and orchestrate backend services that enable our customers to train and leverage AI models in an elegant and performant way.

Technologies we use: Elixir, Phoenix, Postgres, RabbitMQ, Docker, AWS

What You’ll Do (Senior Backend Engineer)

  • Join the team in building solutions to speed up the time to complete annotations tasks

  • Be the go to backend engineer in the team responsible for the data flow of the AI features, both from a codebase point of view and infrastructural one

  • Take ownership of backend tasks related to our model training and inference systems, focusing on enhancing visibility and minimizing costs

  • Upgrade/Redesign our autoscaling system for model interference

  • Facilitate seamless integration between V7's web application and our AI system, serving as the crucial link to optimize our system for labeller’s speed

  • Employ orchestration techniques to oversee backend tasks and jobs, guaranteeing that the models provided to customers are sufficiently resourced for efficient operation.

Who you are (Senior Backend Engineer)

  • Bachelors or higher in Computer Science or a related field with a strong portfolio of projects.

  • A backend engineer with strong architectural design skills

  • Expertise in functional programming, with working experience using Elixir

  • A strong interest in ML and applying AI to solve problems

  • Infrastructure management experience at scale; you should be comfortable in using AWS and terraform

  • Proficiency in queue management and observability, utilizing RabbitMQ as our primary tool.

  • Experience with orchestration tools like Docker

  • Fluent in English

What's the interview process: 1st Hiring Manager Interview, 3rd Take Home Challenge, 3rd collaborative technical zoom interview , 4th Co-Founder Values interview

What's in it for you?

  • London salary: £90k-£130k

  • Remote/EU salary: £80k-£120k

  • Top 15% quartile equity options plan through an EMI scheme

  • Private Healthcare & dental care via Bupa for our UK employees, or equivalent allowance outside of UK

  • Pension contribution through Nest

  • £800 Learning and Development budget

  • Apple MacBook suitable for your role

  • Monthly wellbeing and mental health budget via ThanksBen

  • Personalised benefits platform via Thanks Ben

  • Enhanced Parental Leave

  • 30 days holiday, plus an additional year for every day of service with V7, plus Bank Holidays on top

  • 4-day company-wide and 4 day departmental retreats in stunning locations

  • Hybrid working with flexibility, role dependent

  • Temporary work from anywhere for one month in the calendar year

  • Paid tickets, accommodation, and travel to relevant conferences, nationally or internationally (NeurIPS, ICCV, CVPR, ...) to expand your network & knowledge during normal times

V7

Website: https://www.v7labs.com/

Headquarter Location: London, England, United Kingdom

Employee Count: 101-250

Year Founded: 2018

IPO Status: Private

Last Funding Type: Series A

Industries: Artificial Intelligence (AI) ⋅ Data Collection and Labeling ⋅ Image Recognition ⋅ Machine Learning ⋅ Software