21 engineering jobs found in London

Senior Flutter Developer - Outside IR35 - Contract A rare opportunity to join our fast-growing technology company selling high-value software development services. An ideal role for an experienced and dynamic developer who wants to be involved with an exciting and challenging project. Must have Several years of experience developing customer-facing mobile apps for both iOS and Android, using Flutter. Experience working as part of a team (including tools to support collaboration, such as git and user story management software) Experience working closely with other job roles, such as designers and product owners Nice to have Experience with mobile back-end development / Node Experience of CI/CD/DevOps for mobile apps Experience collaborating with clients or stakeholders, including clarifying requirements and presenting work at sprint demos Have experience delivering great outcomes for clients in an agency or professional services firm Your...

Contract Data Engineer Location: London (Hybrid) Contract: 6 months+ (likely extension) IR35: Outside Start: ASAP Overview Data Engineer required to support a finance transformation programme within a digital financial services business. Focus on modernising financial data systems and replacing manual processes with scalable, cloud-based solutions. Responsibilities Work closely with finance stakeholders Design and deliver data integrations and data products Bring General Ledger into the central reporting repository Integrate a Treasury Management System into central data and automate accounting postings Build curated finance data marts for self-service reporting Enable near Real Time reporting capability Operate as a proactive, autonomous contributor within a Scrum team Support experimentation with agentic AI tools (eg Claude, ChatGPT) for discovery and requirement definition Requirements Must-Have: Strong finance domain knowledge Extensive AWS data...

Senior Salesforce Developer | 6 Month Contract | Outside IR35 | Hybrid - London (2 days per month onsite) I'm currently looking for a Senior Salesforce Developer to join a client of mine for an urgent project. This is a great fit for someone who loves hands on engineering, enjoys solving real business problems, and wants the chance to get involved in AI driven project work. What you'll be doing Building and enhancing core Salesforce solutions across Sales Cloud, Service Cloud and platform components Working closely with architects, consultants and client stakeholders to deliver clean, scalable, well tested code Supporting integrations, data work and platform optimisation Contributing to AI focused initiatives (eg, intelligent automation, AI assisted development, workflow optimisation) Playing a key role in shaping technical delivery across multiple client engagements What we're looking for Strong experience as a Salesforce Developer (Apex, LWC, Flows, APIs) Solid...

Senior Software Developer | £500 - £600 We're working with a global energy transformation leader with a 150-year legacy of innovation on this exciting opportunity. We are looking for a heavy-hitting Senior Developer who can bridge the gap between complex finance logic and high-performance Ruby on Rails engineering. This is a high-impact, Outside IR35 role where you will drive the decarbonisation agenda by streamlining digital solutions for Finance, Accounting, and FP&A teams. You will be the technical gatekeeper, shaping pre-development solutions and ensuring enterprise-grade code quality within a fast-moving, green-tech environment. The Role Lead the design and development of pragmatic, sustainable technical solutions using Ruby on Rails to support complex finance data flows. Act as a technical solution shaper, engaging with Accounting and Controlling stakeholders to translate business needs into actionable technical requirements. Architect and review...

AI Engineer - Outside IR35 - Remote Overview We're looking for an experienced AI Engineer to design, build, and scale production-grade agentic systems. This role focuses on developing intelligent, tool-using agents that operate reliably in real-world environments-not just prototypes. You'll work at the intersection of LLMs, orchestration frameworks, and modern Back End systems to deliver robust AI-powered applications. Key Responsibilities Design and build AI-powered applications using agentic workflows Develop and orchestrate multi-agent systems with clear communication and task delegation patterns Implement structured output handling and tool-use integrations Build and maintain scalable Back End services using Node.js and REST APIs Ship production-ready agents with reliability, monitoring, and performance in mind Integrate agents with external tools, APIs, and MCP Servers Establish observability for AI systems, including tracing, cost monitoring, and failure...

As Household Business is currently undergoing a significant transformation and is seeking a Senior Enterprise WordPress Engineer to join on a contract basis. This is a high-impact role working closely with a cross-functional team, where you will be expected to proactively drive delivery and make a genuine, measurable impact through high-quality execution. Duration - 3-6 month inital Rate - £500PD (outside IR35) Location - Remote What You’ll Do Develop, enhance, and maintain enterprise-scale WordPress platforms, delivering new features and functionality to a high standard Build and maintain shared WordPress plugins, microservices, and JavaScript applications that support multiple brands Create custom Gutenberg blocks, APIs, and integrations aligned with modern WordPress best practices Monitor, troubleshoot, and improve performance across Core Web Vitals, response times, and database queries Work closely with cross-functional teams (engineering,...

Contract Senior Data Engineer - £500 - £600 per day - Outside IR35 - Python/Snowflake/AWS Role: Contract Senior Data Engineer Rate: £500 - £600 per day Determination: Outside IR35 Interview Process: 2x Call Technology: SQL/Python/DBT/AWS/Snowflake/Airflow In office requirement: 1 day per week Duration: 6 months Burns Sheehan have been supporting the build of a new team and we are adding to this with another Contract Senior Data Engineer. As a Contract Senior Data Engineer, you will support on core Data Engineering capabilities as well as modernising the Data stack and supporting a migration. Working alongside their Director of Data & Principal Data Engineer, you will be a key component. If this Contract Data Engineer sounds like you, please apply now for immediate consideration. Contract Senior Data Engineer - £500 - £600 per day - Outside IR35 - Python/Snowflake/AWS

PMO Analyst (Data & Tech) | 6 months | £500p/d Outside IR35 Are you an experienced PMO Analyst looking for a role where you sit right in the middle of product, engineering and data - helping complex delivery run smoothly? If so, this could be a great fit! This well-known, hugely successful brand is a unique group of companies that is changing businesses for good, giving customers choice and better service and having fun along the way! You’ll play a key part in how engineering work is planned and delivered, connecting the dots between squads, programmes, and wider business goals. Expect lots of visibility across data-led decision making, engineering delivery cycles, and cross-functional planning. What you’ll be doing: Working closely with product, engineering, and data teams to keep delivery on track Bringing structure and visibility to complex engineering roadmaps and initiatives Tracking dependencies, risks, and delivery flow across multiple squads...

We're working exclusively with an agency specialising in search and performance-led digital strategy for global customers. We are looking to bring in a Creative Technologist/AI Enablement Manager on a 12 month contract to be the face of embedding AI, and then helping evolve this as programmes of work go through maturity. This role requires someone with a developer mindset to be able to audit quality. Key remit: Take agent briefs from champions and build working, tested automation workflows Own the agent build pipeline: sequencing, building, testing, go-live, and iteration Build and maintain the internal training platform Facilitate team hackathons across departments alongside internal AI champions Maintain the agent library, cost tracker and technical documentation Skills we require: Hands-on with n8n (or other Agent Orchestration layer), can build complex automation workflows independently Comfortable with Claude API and prompt engineering to commission...

Senior Software Developer | £500 - £600 We're working with a global energy transformation leader with a 150-year legacy of innovation on this exciting opportunity. We are looking for a heavy-hitting Senior Developer who can bridge the gap between complex finance logic and high-performance Ruby on Rails engineering. This is a high-impact, Outside IR35 role where you will drive the decarbonisation agenda by streamlining digital solutions for Finance, Accounting, and FP&A teams. You will be the technical gatekeeper, shaping pre-development solutions and ensuring enterprise-grade code quality within a fast-moving, green-tech environment. The Role Lead the design and development of pragmatic, sustainable technical solutions using Ruby on Rails to support complex finance data flows. Act as a technical solution shaper, engaging with Accounting and Controlling stakeholders to translate business needs into actionable technical requirements. Architect and review...

DevOps Engineer | £400 - £500 We're working with a leading specialist IT consultancy delivering mission-critical infrastructure for high-security environments on this exciting opportunity. Are you an SC Cleared Platform Engineer who views infrastructure through the lens of a Software Engineer? We are looking for an Azure expert to join a high-impact project, focusing on advanced Infrastructure as Code (IaC), automated testing, and secure-by-design architecture. You will be at the forefront of building resilient, high-availability cloud environments using a modern stack including Terraform, Bicep, and GitHub Actions. The Role Design and implement high-availability Azure architectures featuring regional failover and load balancing strategies directly within IaC templates. Build and maintain scalable, reusable Terraform and Bicep modules, driving consistency and modularity across the infrastructure estate. Champion Test-Driven Development (TDD) principles by...

Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS/Azure/GCP) Docker, Kubernetes CI/CD, observability, testing for AI systems Experience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling, and orchestration frameworks Ability to work autonomously in a scale up environment A product-focused mindset - you enjoy owning features end to end Curiosity, creativity, and a genuine passion for AI Understanding of start/scale up environments Details 12 month contract Fully remote (London office optional) £500-600p/d (outside IR35)

🚀 Contract Full-Stack JavaScript Developer (AI Platform) 📍 Location: 3 days per week in London Office 📆 Duration: 4 weeks with a longer term extension afterwards. 💼 IR35 Status: Outside IR35 💰 Rate: £500p/d – £600p/d Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer . You’ll be joining a small, high-calibre team building a platform to improve workflows within the the FinTech space. They have a genuinely interesting problem at the intersection of frontend engineering, backend systems, and applied LLM tooling . This is a true 0–1 build , ideal if you enjoy ownership, clean abstractions, and shipping product quickly. 🧠 What You’ll Be Working On Building and extending agent-driven workflows. Developing context management and LLM entry points. Only application-layer LLM integrations, not model training) Expanding slide generation functions and data structures. Full-stack feature...

🚀  Contract Full-Stack JavaScript Developer (AI Platform) 📍  Location:  3 days per week in London Office 📆  Duration:  4 weeks with a longer term extension afterwards. 💼  IR35 Status:  Outside IR35 💰  Rate:  £500p/d – £600p/d Opus is partnering with a cutting-edge  FinTech start-up  to secure a  Contract Full-Stack JavaScript Developer . You’ll be joining a small, high-calibre team building a platform to improve workflows within the the FinTech space. They have a genuinely interesting problem at the intersection of  frontend engineering, backend systems, and applied LLM tooling . This is a  true 0–1 build , ideal if you enjoy ownership, clean abstractions, and shipping product quickly. 🧠 What You’ll Be Working On Building and extending  agent-driven workflows. Developing  context management and LLM entry points.  Only application-layer LLM integrations, not model training) Expanding  slide generation functions and data structures. Full-stack feature development, with a...

Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS / Azure / GCP) Docker, Kubernetes CI/CD, observability, testing for AI systems Experience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling, and orchestration frameworks Ability to work autonomously in a scale‑up environment A product-focused mindset — you enjoy owning features end‑to‑end Curiosity, creativity, and a genuine passion for AI Understanding of start/ scale up environments Details 12 month contract  Fully remote (London office optional)  £500-600p/d (outside IR35)

Azure DevOps Engineer – 6-month contract – SC Cleared – London/Remote – Outside of IR35 My SC Cleared customer is seeking a highly skilled Azure DevOps / Platform Engineer with deep, hands-on experience in Azure-native engineering and advanced Infrastructure as Code (IaC) practices. This role is ideal for someone who operates at the intersection of DevOps and Software Engineering—bringing a strong development mindset to infrastructure design, automation, and testing. Key Skills & Experience from the Azure DevOps Engineer: Active SC Clearance ideal/lapsed considered Advanced Azure Engineering Strong experience designing for high availability Deep understanding of Azure-native services and architecture patterns Infrastructure as Code (IaC) Expert-level proficiency with Terraform and/or Bicep Strong focus on modularity, reusability, and maintainability Experience integrating automated testing frameworks (e.g. Terratest, Checkov) Azure Networking &...

Data Privacy Consultant A Global Organisation requires a Contract Data Privacy Consultant to bridge commercial and privacy teams, clear delivery blockers, deliver a critical first-party data initiative, and uplift standards to enable scalable, compliant execution. Day Rate: £500-£600pd IR35 Status: Outside Duration: 6 months Travel: 2 days a week in Central London Office This Data Privacy SME will have the following previous experience: Act as the critical link between Product, Marketing, Engineering, and Privacy translating fast-moving commercial initiatives into robust, privacy-compliant outputs. Take ownership of stalled and rejected work, bringing the required rigour and detail to push projects through to approval and completion. Deliver a business-critical first-party data project for paid marketing ensuring it is properly documented, compliant, and aligned to core KPIs. Produce and refine key outputs including data flows, DPIAs, cookie...

Contract Full-Stack JavaScript Developer (AI Platform) Location: 3 days per week in London Office Duration: 4 weeks with a longer term extension afterwards. IR35 Status: Outside IR35 Rate: £500p/d - £600p/d Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer . You'll be joining a small, high-calibre team building a platform to improve workflows within the FinTech space. They have a genuinely interesting problem at the intersection of Front End engineering, Back End systems, and applied LLM tooling . This is a true 0-1 build , ideal if you enjoy ownership, clean abstractions, and shipping product quickly. What You'll Be Working On Building and extending agent-driven workflows. Developing context management and LLM entry points. Only application-layer LLM integrations, not model training) Expanding slide generation functions and data structures. Full-stack feature development, with a Front...

Azure DevOps Engineer - 6-month contract - SC Cleared - London/Remote - Outside of IR35 My SC Cleared customer is seeking a highly skilled Azure DevOps/Platform Engineer with deep, hands-on experience in Azure-native engineering and advanced Infrastructure as Code (IaC) practices. This role is ideal for someone who operates at the intersection of DevOps and Software Engineering-bringing a strong development mindset to infrastructure design, automation, and testing. Key Skills & Experience from the Azure DevOps Engineer: Active SC Clearance ideal/lapsed considered Advanced Azure Engineering Strong experience designing for high availability Deep understanding of Azure-native services and architecture patterns Infrastructure as Code (IaC) Expert-level proficiency with Terraform and/or Bicep Strong focus on modularity, reusability, and maintainability Experience integrating automated testing frameworks (eg Terratest, Checkov) Azure Networking &...

Security Engineer - Hybrid London - £500 outside IR35 We are working with a fast-growing, premium retail company to find a hands-on Security Engineer who can design, deploy, and integrate security solutions across cloud, infrastructure, and data platforms. This is an engineering-focused role, not a policy or compliance position. You will play a critical role in protecting customer, payment, and operational data across an omnichannel environment, including e-commerce, mobile, marketplaces, and back-office systems. Key responsibilities include: Implement and manage security controls across cloud, network, infrastructure, and data systems Secure end-to-end data pipelines and analytics platforms Collaborate with security, IT, and engineering teams to embed security into architecture and deployment pipelines Apply encryption, access control, and monitoring across all environments Contribute to threat detection, incident response, and continuous improvement Skills &...