Remote Software engineering Jobs · UK

Job listings

UK 7w PTO

  • Build production-ready AI-powered products integrating LLMs, RAG, and agentic workflows into real-world financial processes.
  • Develop scalable event-driven microservices and APIs with Node.js, TypeScript, and modern React frontends.
  • Architect cloud-native systems on AWS and implement monitoring, evaluation, and observability for production AI systems.

Aveni is redefining how financial institutions use AI by building production-ready agentic systems that replace fragmented processes. Backed by investors including Puma Private Equity, the company completed one of Scotland's largest Series A rounds and is scaling its team to meet growing demand.

$101,600–$139,700/yr
UK 5w PTO

  • You will lead the delivery of complex projects involving many stakeholders and systems.
  • You will architect and implement scalable solutions for the ledger, reconciliation, and financial reporting.
  • You will use AI-assisted development to focus on complex architecture and high-stakes decision-making.

We provide smart technology and data science to help small businesses access flexible finance quickly. We have funded over 100,000 businesses with more than £4 billion and foster a culture of independent thinking, evidence-based decisions, and AI-assisted development.

UK Unlimited PTO

  • Develop secure, well-tested, performant features and improvements using Ruby and GraphQL.
  • Work through complex requirements and legacy constraints to deliver clear solutions while protecting system reliability.
  • Collaborate across functions and teams, contributing to backend services, APIs, data models, and business logic for repository management.

GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to increase developer productivity, improve operational efficiency, and reduce security and compliance risk. More than 50 million registered users and over 50% of the Fortune 100 trust GitLab, and the company fosters a high-performance culture driven by values, AI integration, and continuous knowledge exchange.

US UK Unlimited PTO

  • Design and optimize training and post-training pipelines for large language models.
  • Improve model quality through supervised fine-tuning, reinforcement learning, and evaluation.
  • Build PyTorch-based training infrastructure and optimize distributed training across multi-GPU environments.

Lightning AI builds an end-to-end platform for developing, training, and deploying AI systems, founded in 2019. They are a global company with offices in New York, San Francisco, Seattle, and London, backed by major venture capital firms, and foster a builder culture that values urgency, ownership, and open communication.

$128,270–$189,230/yr

  • Break down larger projects into tasks and deliver them in phases with your team.
  • Collaborate with product, design, and analytics to make informed decisions and manage trade-offs.
  • Support operations, monitor metrics, and participate in on-call and team growth activities.

Affirm is a fintech company reinventing credit with transparent buy now, pay later products. With over 20 million consumers, Affirm is a remote-first, fast-paced company that values ownership and collaboration.

  • Own and deliver quarterly goals, leading engineers through ambiguity to solve open-ended problems.
  • Collaborate with product management, design, and analytics to make decisions considering risks and trade-offs.
  • Foster a culture of quality and ownership by setting code review standards and mentoring teammates.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. We directly improve the financial lives of over 20 million people, with an agile and fast-paced culture focused on ownership and collaboration.