
201 - 500 employees
Founded 2006
🤖 Artificial Intelligence
🔒 Cybersecurity
Artificial Intelligence • Cybersecurity • Cloud Computing
Plain Concepts is an innovative technology company committed to delivering customized solutions across a wide array of digital needs. With a focus on cutting-edge areas like Artificial Intelligence, cybersecurity, cloud computing, and Internet of Things (IoT), Plain Concepts is a partner for companies looking to enhance operations and secure their digital landscapes. As a recognized Microsoft AI Partner, Plain Concepts aims to transform data into insightful information and improve business applications through bespoke IoT developments. Additionally, the company fosters revolutionary advancements in augmented and virtual reality, while driving digital transformation initiatives with Microsoft 365 and a strong focus on sustainability and social commitment.
🕒 March 28
🏢🏡 London – Hybrid
💵 £90k - £140k / year
⏰ Full Time
🟠 Senior
🧑💻 Full-stack Engineer
🇬🇧 UK Skilled Worker Visa Sponsor
Improve your chances of getting an interview by checking your resume score before you apply.

201 - 500 employees
Founded 2006
🤖 Artificial Intelligence
🔒 Cybersecurity
Artificial Intelligence • Cybersecurity • Cloud Computing
Plain Concepts is an innovative technology company committed to delivering customized solutions across a wide array of digital needs. With a focus on cutting-edge areas like Artificial Intelligence, cybersecurity, cloud computing, and Internet of Things (IoT), Plain Concepts is a partner for companies looking to enhance operations and secure their digital landscapes. As a recognized Microsoft AI Partner, Plain Concepts aims to transform data into insightful information and improve business applications through bespoke IoT developments. Additionally, the company fosters revolutionary advancements in augmented and virtual reality, while driving digital transformation initiatives with Microsoft 365 and a strong focus on sustainability and social commitment.
• Own and ship AI features such as our agents, assistants, insights and more - from concept to production. • Design and implement backend services for AI integrations and data pipeline. • Build robust APIs and abstractions for internal AI usage • Drive system scalability: caching, optimization, processing patterns, etc • Contribute and drive the evolution of the infrastructure for AI including architecture, evaluation and iteration pipelines. • Solve complex AI challenges around AI accuracy, reliability, and quality – using rigorous quantitive approaches. • Advocate for our work externally – writing, speaking, and engaging with the broader AI community.
• Are an experienced backend engineer who’s shipped AI products in the OpenAI & Anthropic era – especially text and data-heavy AI applications. • Have hands-on experience with LLM orchestration and LLM API optimization (costs, latency, etc) • Are familiar with RAG architectures and technologies • Have AI observability experience. AI isn’t just about shipping features that sound great – it’s about knowing, conclusively, if they’re making things better. • Have a clear perspective on what makes a great AI product. We want to apply AI with precision, nuance, and real impact – not as a gimmick. • Are product minded and customer focused in how you build software. • Measure your success by user impact, not just technical elegance. • Are self-driven, impact-focused, and thrive in a fast-moving, high-ownership environment. • Bonus: you have experience with agent frameworks and design.
• Offers Equity
Apply Now🕒 March 27
11 - 50
⚡ Energy
🔧 Hardware
🏢 Enterprise
Senior Software Engineer at Relay developing impactful e-commerce solutions using algorithms and operational tools. Collaborating with engineers and data scientists in a dynamic environment.
🕒 March 27
201 - 500
🤖 Artificial Intelligence
Software Engineer working on the Frontier Decision Intelligence platform at Faculty. Focusing on AI-driven solutions and backend and frontend development in a hybrid team environment.
🏢🏡 London – Hybrid
⏰ Full Time
🟡 Mid-level
🟠 Senior
🧑💻 Full-stack Engineer
🇬🇧 UK Skilled Worker Visa Sponsor
🕒 March 27
201 - 500
🤖 Artificial Intelligence
Senior Software Engineer developing AI solutions for clients across various industries. Leading technical projects and delivering high-impact decisions leveraging AI capabilities in healthcare and life sciences.
🕒 March 27
11 - 50
Senior Software Engineer developing full stack solutions that shape next-gen HR tech. Collaborating with product teams to build high-quality features in a dynamic environment.
🏢🏡 London – Hybrid
💰 $15M Series A on 2022-10
⏰ Full Time
🟠 Senior
🧑💻 Full-stack Engineer
🇬🇧 UK Skilled Worker Visa Sponsor
🕒 March 27
501 - 1000
💸 Finance
🤝 B2B
Senior Software Engineer leading design and development of scalable online systems at UK firm. Collaborating closely with product team and mentoring other engineers.
🏢🏡 London – Hybrid
🔥 Funding within the last year
💰 $158.5M Post-IPO Debt - Fintel on 2025-07
⏰ Full Time
🟠 Senior
🧑💻 Full-stack Engineer