11 back end engineer jobs found

Applied AI Engineer - Financial Services AI - Outside IR35 - Remote The Applied AI Engineer will be responsible for designing and deploying production AI applications for investment, credit and portfolio management teams, building enterprise LLM solutions that integrate internal and third-party data to support AI-driven financial workflows. Applied AI Engineer - Key Skills: - Proven experience building production AI applications using LLMs within Financial Services (Investment Management, Investment Banking, Asset Management, Hedge Funds, Private Credit or similar). - Must have strong understanding of RAG architectures, AI agents and enterprise AI systems, including document parsing, chunking, retrieval, re-ranking and orchestration. - Strong Python experience building production AI applications, Back End services and APIs. - Strong Azure experience, including Azure OpenAI and cloud-native AI services. - Experience deploying production AI systems using Kubernetes,...

BI/Data Engineer As a BI/Data Engineer, you will provide specialist technical expertise to develop, enhance and support our outbound bordereaux reporting solution. Working closely with the Actuarial, Product, Data & MI teams, you will improve data quality, implement new reporting requirements and automate manual processes to deliver accurate, timely and efficient bordereaux submissions to our capacity providers. You will take ownership of understanding the existing solution, analysing business requirements, developing robust data validation processes and delivering scalable reporting solutions while ensuring knowledge is documented and transferred at the conclusion of the engagement. Essential Experience Proven experience developing bordereaux reporting solutions within the insurance industry. Strong experience as a BI Developer or Data Engineer. Hands-on experience working with the Acturis Back End database. Advanced SQL skills including stored procedures, views,...

Who are OnCommerce?   OnCommerce is a global selling platform that powers a growing network of retail channels, including: OnBuy - The only marketplace in the world to give customers instant Cashback on everything easyShop - An all-new marketplace created in collaboration with the easy® family of brands Comet - The iconic UK tech brand making its return later this year   OnCommerce is growing fast, launching new brands and scaling to power the future of ecommerce.   Be Part of the Story OnCommerce is constantly evolving. Everyone here plays a hands-on role in shaping what comes next, building brands that make an impact across global markets. There’s no red tape or rigid corporate structure; just smart people taking ownership and figuring things out as we build something big together. The pace is fast, priorities shift, things aren’t always perfectly set up, and you’ll often need to get stuck in and...

Join a central government organisation where your Oracle Cloud expertise will maintain critical national infrastructure in a high-security environment. Salary: £550 - 575 per day + Outside IR35 Job Specification: DV Cleared-Oracle Cloud Engineer Employment Type: Full-Time Location: Milton Keynes UK-based working required, 3 days on site in MK Clearance Required: DV (Developed Vetting) Position Type: Contract (Outside IR-35) The Role A central government organisation is seeking to recruit a DV cleared Oracle Cloud Engineer on an initial 3 month contract basis, 2-3 days per week in Milton Keynes (high likelihood of extension), paying £550/day outside IR35 to start asap (potential for increase in rate). Under the applications sits an OCI estate of production and non-production environments, and this role owns keeping that estate healthy, current, recoverable and affordable. Builds are scripted, restores are rehearsed, patching runs to a clock, and there is a...

Join a central government organisation where your Oracle Cloud expertise will maintain critical national infrastructure in a high-security environment. Salary: £550 - 575 per day + Outside IR35 Job Specification: DV Cleared-Oracle Cloud Engineer Employment Type: Full-Time Location: Milton Keynes UK-based working required, 3 days on site in MK Clearance Required: DV (Developed Vetting) Position Type: Contract (Outside IR-35) The Role A central government organisation is seeking to recruit a DV cleared Oracle Cloud Engineer on an initial 3 month contract basis, 2-3 days per week in Milton Keynes (high likelihood of extension), paying £550/day outside IR35 to start asap (potential for increase in rate). Under the applications sits an OCI estate of production and non-production environments, and this role owns keeping that estate healthy, current, recoverable and affordable. Builds are scripted, restores are rehearsed,...

Senior Software Engineer - Kotlin £550-£650 per day | Outside IR35 Hybrid | London (3 days onsite) A leading UK financial services organisation is seeking a Senior Software Engineer to play a central role in a large-scale platform transformation programme. The business is rebuilding a critical part of its digital infrastructure to support a broad range of transaction methods and channels across both in-person and digital environments. This is hands-on Back End engineering at scale, with real ownership and direct exposure to architecture decisions from day one. Key Responsibilities as a Senior Software Engineer: Design and build Kotlin Back End services for a new payments platform Own the architecture and design of key components, taking high-level requirements and turning them into structured, deliverable backlogs Write clean, well-tested, production-ready code that the team can rely on Work closely with Product and Engineering to break down complex...

Technical Lead/Senior Full Stack Developer | .NET, SQL, GDS The Rate - £550 per day IR35 Status - Outside IR35 The Location - UK (remote) The Working Pattern - Remote Duration - August 2026 to late March 2027 About the Client Digital Skills are working with a niche data and public sector technology consultancy supporting a consortium of UK Local Authorities. The programme centres on scaling a secure data platform used for national reporting, policy development and cross-authority data standardisation. About the Role This is a blended Technical Lead and Senior Full Stack Developer role, combining hands-on engineering with delivery leadership. You will own technical direction while actively contributing to development, leading the platform through public Beta in line with GDS standards. Responsibilities A key responsibility for this role is to lead the project as it undergoes GDS Service Assessment. Lead delivery of a GDS-aligned digital service...

Senior Software Engineer - Kotlin & Coroutines. £500/day LTD CO OUTSIDE IR35. 100% REMOTE. An interest in AI (Agentic AI, AI tooling, Claude, Codex or Co-Pilot) highly advantageous but not essential. We are looking for a Senior Backend Engineer (Kotlin & Coroutines essential) to build the integrations that connect AI companion with senior care and hospital software platforms. In this role, you will design, build, and maintain robust Back End services and integrations that enable seamless data exchange between the company and partner systems. You'll take end-to-end ownership of integration projects-from discovery and architecture through implementation, deployment, and continuous improvement. Key Responsibilities for the Kotlin & Coroutines Developer are: Design, develop, and maintain integrations between my clients platform and third-party healthcare and senior care software systems. Build scalable, secure, and maintainable Back End services and APIs using...

AI Integration Engineer (Defence & National Security) Location: London (Hybrid) Contract Rate: £600/day (Outside IR35) Requirement: Active UK SC Clearance (Mandatory) We are hiring on behalf of our client, a specialised defence consultancy, who is looking for an AI Integration Engineer with active SC clearance to join them on a contract basis in London. Key Skills Required Active UK SC Clearance (Mandatory - applications without this cannot be considered) Core Engineering: Strong Back End development skills (Python, Go, or C++) with solid API design and data pipeline experience AI Tooling: Hands-on experience integrating LLMs, handling vector databases, and building robust chunking/embedding strategies Secure Architecture: Deploying LLM pipelines, RAG systems, and orchestration layers within secure, classification-bound environments Local Implementations: Self-hosting, optimising, and containerising open-source models (eg, Llama,...

Azure Data Engineer (Government Digital Services) 6-month contract Remote working (UK) Outside IR35 £475 per day The Opportunity: We are supporting a major public sector organisation on the appointment of an experienced Azure Data Engineer to join a high-profile data and analytics programme on an initial 6-month contract basis. This is a backend-focused Data Engineering role centred on building and maintaining scalable data services, pipelines and platform capabilities using Azure Databricks within a containerised Docker environment. Working within a multidisciplinary data team across Agile delivery environments, you will play a key role in designing, developing and optimising modern cloud-based data solutions that support critical environmental, scientific and operational decision-making across the organisation. This role offers the opportunity to work with large-scale data platforms, geospatial datasets and advanced analytics capabilities, helping to drive...

UI Architect Global Financial Services/Payments Client Location: London - 4 days per week Rate: £550-£570 per day Contract: 6 months initial IR35 Status: Outside IR35 Role Overview We are supporting a global financial services organisation operating in cross-border payments and emerging markets as they continue a large-scale technology transformation. They are looking for an experienced UI Architect to lead the design and delivery of scalable, modern Front End platforms aligned to a microservices architecture. This is a hands-on architecture role with responsibility for defining standards, driving best practice and shaping the Front End ecosystem across multiple products. Key Responsibilities Define and own Front End architecture across a microservices-based platform Design scalable UI solutions aligned to API-first Back End services Establish reusable components, UI standards and enterprise design systems Define integration approaches with RESTful and...