You will work with backend development, databases, APIs, cloud services and production machine learning systems. This is for a growing technology business. No specific project or team size is mentioned.

You will use TensorFlow or PyTorch, Python, and CV/graphics libraries, plus 3D engines like Unreal or Unity, to develop generative models for graphics and video. As part of the Visual Computing Group, you'll design neural networks and ML for PlayStation's game rendering and live

You will use Python daily, with Ruby useful but not required, and AI tools like Claude in your workflow. The team focuses on greenfield projects in a start-up or small business environment.

Imperial College London★4.2 (238)· London

Work with PyTorch, GPU kernel programming, Verilog, and NVIDIA's Holoscan Sensor Bridge to integrate FPGA-based AI-ISP accelerators with edge GPU platforms. The project targets low-latency, high-throughput sensor-to-GPU streaming for the "Sense-Decide" pipeline in edge automation.

Bloom and Wild★2.6 (5)· London

You will work with AWS, Terraform, Ruby, Python, React, GitHub Actions, and Datadog. The 60+ person Tech team builds software for Bloom & Wild’s direct-to-consumer flower and gifting business, including online shops, warehouses, and delivery logistics. You will split time between embedded work in domain squads and central Platform work building shared tools and automation.

Koinly★3.0 (1)· London

Work with React 19, TypeScript, TanStack (Router, Query, Table), Radix UI, Mantine, Tailwind CSS v4, Vite, Vitest, Storybook, Highcharts, Sentry, Bun, and RabbitMQ on a data platform that reconciles crypto transactions and tax obligations for Koinly’s web application, with a React Native mobile app joining scope later.

Koinly★3.0 (1)· London

You will work with TypeScript on Bun, RabbitMQ, Redis, PostgreSQL, Vitest, Sentry, and Rust. The team owns the distributed data-processing backend that ingests, normalizes, and reconciles on-chain and exchange data for Koinly’s crypto tax calculation product.

Lead engineers use Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL; Git, MacOS/Linux, and CI/CD; and AI-assistive tools. They lead multi-client software consultancy engagements, building and delivering production agentic systems and ML-powered features. The team is typically one to two clients per year.

You will work with Vue, Ruby on Rails, Postgres, Terraform, dbt, AWS, and GCP. EmpowerRD builds software that makes R&D tax relief claims transparent and empowering for businesses and advisors. As Head of Engineering, you own the technology strategy and lead the engineering and data teams.

You'll work with Ruby on Rails, PostgreSQL, Redis, React, TypeScript, and React Native. As a hands-on Director at a HealthTech company, you'll write production code, architect features, and serve as the technical contact for major clients. You'll line-manage 3-5 junior and mid-level engineers.

Python and SQL for computer‑vision projects using Vision Language Models (VLMs) at a tech start‑up. You will work on a broad range of machine‑vision tasks, blending research, implementation, and support from a team of PhDs and MScs.

The role involves designing and implementing machine learning tools, web applications, and database management platforms, plus developing AI algorithms for ophthalmic image segmentation and analysis. You will work with the AI and Data Science team at Moorfields Eye Hospital’s NIHR Clinical Research Facility, which delivers ophthalmology clinical research and AI-driven diagnostic models for eye diseases.

Full Stack Developer role using Python, TypeScript, AWS, Ruby on Rails, React, Redux, Node, and PostgreSQL. You’ll work on a loan origination and servicing platform for an ethical FinTech that offers small, short-term secured loans to help improve credit ratings.

Work with Ruby on Rails, Go, TypeScript, and Elixir to design, build, and maintain APIs and services, contributing to a monolith and breaking it down toward distributed systems. Gigs builds an operating system for mobile services, enabling tech companies to embed global connectivity into their products.

Research, develop, and evaluate state-of-the-art deep learning models for volumetric CT data using Python and PyTorch. You will contribute to self-supervised pre-training of large 3D foundation models and specialize models for segmentation, classification, and regression to support clinical-trial and real-world evidence programmes. The role is within the Machine Learning function at Qureight, which builds an AI-powered imaging platform for lung and heart disease.

You'll work with Ruby on Rails 8, Hotwire, Stimulus, PostgreSQL, REST APIs, Stripe, and Next.js to build and enhance a digital learning platform and develop a new product. You'll take full-stack ownership, collaborating with founders and product teams.

Build scalable backend services and APIs with Go, Python, or C++, and develop frontend applications using React and TypeScript. You will ship AI-powered product features end-to-end on a platform combining computer vision, multimodal AI, and real-time data. Work closely with AI and platform engineers on new capabilities within a small, experienced team.

Work with C, C++ or Rust, Python, computer vision models (object detection, tracking), state estimation and sensor fusion (Kalman filtering, factor graphs, SLAM). You will own integration of a new counter-UAS initiative, building a prototype from concept through trials. This role spans robotics, ML and systems engineering.

You will use Adobe Creative Suite (Photoshop, Premiere Pro) and Canva for graphics and video, and manage social platforms (LinkedIn, X, Instagram, YouTube, TikTok) with scheduling and analytics tools like Hootsuite, Buffer, or Sprout Social. You will own Ultralytics' social media strategy, creating content to showcase its YOLO AI models and vision AI advancements, and collaborate with Engineering and Marketing teams on product launches and announcements.

The Head of Engineering role oversees a technology stack of Vue, Ruby on Rails, Postgres, Terraform, dbt, AWS, and GCP. You will define the technology strategy and engineering culture for a software platform that simplifies R&D tax credit claims for businesses and advisors. This senior leadership position manages and mentors cross-functional engineering and data teams.

You'll work with Adobe Creative Suite (Photoshop, Illustrator, InDesign, After Effects, Premiere Pro), Figma, and AI tools like ComfyUI and Midjourney. You'll lead end-to-end creative production for marketing, event, and digital assets at Ultralytics, turning complex vision AI into clear visuals for the company that creates the leading YOLO AI models.

Lead engineering at EmpowerRD, owning the technology strategy for a SaaS platform that simplifies R&D tax relief claims. You will work with Vue, Ruby on Rails, Postgres, Terraform, dbt, AWS, and GCP, managing the engineering and data teams and reporting to the CEO.

Lead Graphic Designer at Ultralytics (AI/computer vision) will use Adobe Creative Suite (Photoshop, Illustrator, InDesign, After Effects, Premiere Pro), Figma, and AI tools like ComfyUI and Midjourney. They own end-to-end creative production for campaigns, social, web graphics, event branding, and motion content, supporting adoption of Ultralytics YOLO AI models.

Transport for London★4.0 (429)· London

Work with AWS infrastructure administration, IaC (CloudFormation, Puppet, Ruby, Perl), Windows/Linux Server, and Sophos UTM. You will provide Level 2/3 support for TfL's in-house developed online services, including the website, API, and Journey Planner environments, while maintaining CI/CD practices.

8th Light★0.0· London

You will use Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, SQL, Git, CI/CD, and AI-assistive tools. As a lead technologist at a technology consultancy, you will lead client engagements building agentic products, platforms, and full ML lifecycle systems. You will mentor colleagues and lead architecture discussions on complex projects.