Staff Software Engineer (AI)

The Company

Unitary’s purpose is to make the internet safer to improve lives and create a fairer world. We are a rapidly growing start-up developing solutions that blend human expertise and AI agents to handle manual customer and marketplace operations tasks. Our unique approach combines the strengths of human expertise (high accuracy and nuanced decision-making) with the advantages of AI automation (speed and cost efficiency). This cutting-edge technology helps businesses solve real-world challenges in trust & safety and beyond without complex technical integration. We believe in an online world free from harm, where we can trust AI to make safe and fair decisions.

We have raised about $25M in VC funding from top-tier funds, including Creandum and Plural, and operate at a significant scale - analysing millions of images and videos daily from the world’s largest platforms. But we are just at the beginning of our journey - and we are very excited about our plans for growth over the coming year and beyond!

The Role

As a Senior or Staff Software Engineer, you will:

• Architect and implement a new generation of tools and services for building AI Agents

• • Our company has recently seen exceptional revenue growth with our new proposition of AI Agents for operational processes. We are now growing our capabilities in this space at the same time as trying to deliver our service to a host of new clients. We need to design new services and architectures to support this growth through to 30+ clients.

• Re-imagine and refactor our existing services and tooling

• • Our current toolset has helped us grow from 0 to c. 10 clients in the past 8 months. We are now finding that these services and tools will not scale far beyond this point in their current form. We need them to be re-imagined, in light of our learnings from our pathfinder clients, into robust capabilities that can match the growth of our business.

• Deliver software as part of onboarding new clients and use cases

• • We’re a small and lean start-up business focused on winning, retaining and growing our clients. We believe the best way to do this is to deeply understand their challenges and what it takes to get our service working for them. You will work in a team that is customer-focused, alongside Machine Learning Engineers who are developing the Agent AI needed to operate customer processes.

• Establish design patterns and approaches that others can follow

• • Like lots of start-ups, our current stack has been the product of several generations of product strategy and our current design patterns need updating to match our evolved business proposition. We need you to establish design patterns befitting of the capabilities we need to offer and enable and empower others to follow them through our lean architecture governance processes.

• Bridge our Machine Learning and Platform Engineering Capabilities

• • We have an extremely talented pool of full-stack machine learning and MLOps engineers and an exceptional platform engineering team. We need software ‘glue’ expertise and capability to bring these two things together optimally. With our other software engineers, you will be this glue.

The role will report to the VP of Engineering. It can be based in the UK or anywhere within 3 hours of the UK timezone where you would be willing to travel to London on occasion.

Requirements

You

We are looking for someone who is as excited about Unitary’s mission as we are, and who wants to have a large impact at an early-stage start-up and be a key part of defining Unitary’s future as one of our early employees. We need versatile people who are happy to get stuck into whatever needs doing and are ready to learn and grow with the company.

We would love to hear from you if you:

• Have expert Python development experience
• Can demonstrate a track record of delivering solutions in the areas mentioned above
• Possess strong skills in creating and managing containerised microservices running on Kubernetes
• Are an advocate of software best practices, standards, and culture
• Are still actively developing hands-on and want to do so for at least the next 12 months
• Are knowledgeable about event-driven architectures
• Have a DevOps mindset and the skills to apply it using cloud platforms
• Have basic knowledge of Go (we are building some back-end services in Go)
• Understanding of machine learning principles

It would be even better, but not essential, if you:

• Have worked in a start-up before
• Can venture into Data Engineering, MLOps and/or Platform Engineering
• Can write, deliver, and maintain Go code
• Have experience using AI-assisted code development tools (e.g. Cursor)
• Are confident using AWS

Benefits

About Us

The Team

Unitary is a remote-first team of 20+ people spread across Europe and North America who are fiercely passionate about making the internet a safer place, and deeply motivated to become a force for good. We have an ambition to create a company filled with happy, kind and collaborative people who achieve extraordinary things together. Our culture is built around the power of trust, transparency and self-leadership. 

Working at Unitary

We are committed to creating a positive and inclusive culture built on genuine interest for each other's well-being. We offer progressive and market-leading benefits, including:

• Flexible hours and location
• Competitive salary and equity package
• Occupational pension
• Generous paid parental leave
• Generous paid sick leave
• Annual budget for your professional development and growth
• Annual budget for your individual health and wellness
• Three team offsites to London or other exciting destinations in Europe