13 junior service designer jobs found in London

We are working with a consultancy feeding into the public sector looking for an actively active SC cleared lead service designer - Outside IR35 - 6 month contract  - £550 per day Key responsibilities Develop and maintain service blueprints and end-to-end journey maps Map operational finance processes (e.g. transfers, holds, reporting, reconciliation) Lead on data mapping across the service Identify and map external touch points and dependencies  Highlight gaps, risks, hand-offs and non-happy paths across the service Ensure service design reflects technical constraints and delivery reality Contribute actively within sprint cycles and supporting delivery Essential Requirements (GDS-aligned – Senior Service Designer) Strong End-to-end service design expertise Multidisciplinary delivery experience  Designing within complex constraints Systems and data thinking  Evidence-led decision making and influence Desirable Requirements (GDS-aligned – Service Designer)...

Application Developer - (PostrgreSQL / Python) Bullet Points London - 1 or 2 days per week onsite - City of London 6 months contract £570 per day - Outside IR35 Full Job Description - Senior Application Developer London – Hybrid working (1 – 2 day per week office visit required) 6 months contract - £570 per day – Outside IR35 About the Role We are looking for a Senior Application Developer to design and build a robust PostgreSQL-based data platform that will underpin our investment reporting, risk analytics, regulatory disclosures and performance measurement. This is a genuinely high-impact, greenfield opportunity. You will have real ownership of the platform design and lead the migration away from Databricks and Excel-driven processes — leaving a lasting mark on infrastructure that sits at the heart of our investment operations. What You’ll Be Doing You will lead the design and build of a scalable, secure PostgreSQL data platform to...

Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...

We are working with a consultancy feeding into the public sector looking for an actively active SC cleared lead service designer - Outside IR35 - 6 month contract - £550 per day Key responsibilities Develop and maintain service blueprints and end-to-end journey maps Map operational finance processes (eg transfers, holds, reporting, reconciliation) Lead on data mapping across the service Identify and map external touch points and dependencies Highlight gaps, risks, hand-offs and non-happy paths across the service Ensure service design reflects technical constraints and delivery reality Contribute actively within sprint cycles and supporting delivery Essential Requirements (GDS-aligned - Senior Service Designer) Strong End-to-end service design expertise Multidisciplinary delivery experience Designing within complex constraints Systems and data thinking Evidence-led decision making and influence Desirable Requirements (GDS-aligned - Service Designer)...

London - 1 or 2 days per week onsite - City of London 6 months contract £570 per day - Outside IR35 Senior Application Developer London - Hybrid working (1 - 2 day per week office visit required) 6 months contract - £570 per day - Outside IR35 About the Role We are looking for a Senior Application Developer to design and build a robust PostgreSQL-based data platform that will underpin our investment reporting, risk analytics, regulatory disclosures and performance measurement. This is a genuinely high-impact, greenfield opportunity. You will have real ownership of the platform design and lead the migration away from Databricks and Excel-driven processes - leaving a lasting mark on infrastructure that sits at the heart of our investment operations. What You'll Be Doing You will lead the design and build of a scalable, secure PostgreSQL data platform to support: Portfolio holdings and valuations Performance and attribution reporting Risk analytics...

Senior Cloud Network Engineer - Multi-Cloud, AWS, Azure, Terraform - £600 - £650 per day (outside IR35, mostly remote) A global commercial real estate services and investment firm are seeking a highly skilled Senior Cloud Network Engineer to lead the design and optimization of secure, scalable cloud networking solutions across their international operations. The Senior Cloud Network Engineer's responsibilities will be: Design and implement advanced cloud network architectures across AWS, Azure, and hybrid environments including VPCs, Transit Gateways, and Direct Connect solutions. Lead integration of on-premises and cloud networks, ensuring secure and efficient hybrid connectivity across global infrastructure. Collaborate with cybersecurity, DevOps, and infrastructure teams to align cloud network strategies with business objectives. Conduct cloud network architecture reviews, performance tuning, and cost optimization initiatives. Develop and maintain network...

Tecknuovo is a deliberately different digital consultancy, delivering secure, modern solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an actively SC Cleared Tech Lead/Solutions Architect (SFIA 6) to support a strategically important government-sector data modernisation programme , focused on establishing an AWS-native Data Landing Zone (DLZ) and leading the prototype-to-production delivery of a Legacy data migration .You will provide technical leadership, architectural direction, and help embed product-led, scalable delivery practices, ensuring high-quality engineering, strong DevOps automation, and smooth knowledge transfer into internal client teams. Essential Skills: Proven experience designing and implementing cloud-native architectures , ideally using AWS. Strong background leading technical delivery across multi-disciplinary engineering teams . Experience architecting and delivering data ingestion, storage,...

Outside IR35 | £500-£525/day | 6 Months Remote - UK We're looking for experienced Backend Engineers to support the development and scaling of Back End platforms powering a range of digital products and internal systems. This is a hands-on contract role suited to senior engineers who enjoy technical ownership, improving system performance, and contributing to architectural decisions while remaining actively involved in delivery. The Role Develop Back End services using Node.js and TypeScript Build and enhance APIs and system integrations Improve scalability, reliability and overall platform performance Contribute to system design and technical decision-making Collaborate closely with engineering and product teams Provide technical guidance where required Technology Environment Node.js TypeScript/JavaScript APIs and microservices Cloud platforms (AWS, GCP or Azure) Distributed Back End systems Experience Required Strong commercial Back End engineering...

Power BI Developer - Construction, Rail & Civil Engineering Department: Commercial / Project Controls / Digital & Data Reports To: Head of Project Controls / Digital Transformation Manager Location: Working from home Employment Type: Contract - (Outside IR35) Role Overview We are seeking an experienced Power BI Developer to support major infrastructure, rail, and civil engineering projects by delivering high-quality business intelligence and data analytics solutions. The successful candidate will work closely with Project Managers, Commercial Managers, Planners, and Senior Leadership teams to transform complex cost, programme, and operational data into clear, actionable dashboards that support performance improvement, cost control, and strategic decision-making. Key Responsibilities 1. Reporting & Dashboard Development Design, develop, and maintain interactive dashboards and reports Produce reporting for: Cost Value Reconciliation...

Senior Azure .NET Developer - Contract Up to £550/day Outside IR35 Mostly Remote (Occasional London travel) - UK based Contractors ONLY 4 Months We're working with a well-established, high-growth technology business operating in regulated, mission-critical environments. They are investing heavily in their Azure platform and are looking for 2 x Senior Azure .NET Developers to design and implement secure, scalable API services that sit behind Azure API Management and integrate with PostgreSQL systems. This is not a standard Back End role. This is architecture-led API engineering in a production-grade environment. What You'll Be Doing Designing and implementing versioned RESTful APIs in .NET 6+ Building secure services behind Azure API Management (APIM) Implementing authentication, authorisation, token validation and throttling Designing clean, testable architectures using SOLID principles Deploying to AKS/Azure Functions Working closely with Product...

Rate: £600/day Outside IR35 Location: Fully Remote (UK) Duration: 12 months Role Overview We are seeking a Senior Rust Engineer to lead the evolution of our Back End systems. You will develop tooling to optimise the worker acquisition funnel, remove manual bottlenecks, and reduce operational costs. This includes implementing skill verification systems, compliance automation, and engineering the migration away from Legacy Ruby to modern services in Java, Python, and Rust. Your leadership will be pivotal in architectural planning, cross-team collaboration, and the successful decommissioning of the Ruby monolith without service disruption. Key Responsibilities * Design and build large-scale Back End systems that streamline the worker acquisition process and reduce Cost per Hire. * Lead engineering initiatives and provide technical guidance across Java, Python, Rust, and Ruby technologies. * Drive system migrations from monolithic architecture to service-based...

Senior/Lead Power BI Consultant/Developer - Finance 6 Month Contract £500 per day Outside IR35 Finance Sector Client | Occasional travel to Yorkshire & London (c. 1x per month) We are supporting a well-established Consultancy with finance business in securing a Senior/Lead Power BI Consultant to take ownership of their reporting and analytics capability across a key transformation programme. This is a client-facing leadership role requiring both deep technical expertise and the ability to consult, influence and shape BI strategy with senior stakeholders. The Role You will: Lead the end-to-end design and delivery of Power BI solutions Act as the SME for all Power BI-related architecture and best practice Engage directly with senior finance and business stakeholders Translate complex business requirements into scalable reporting solutions Oversee data modelling and performance optimisation Provide guidance on BI governance, standards and...

Enterprise Security Architect - £600 PER DAY OUTSIDE IR35. 2 DAYS PER WEEK ON SITE IN CENTRAL LONDON We’re hiring a pragmatic, high-impact Enterprise Security Architect to shape and govern security across a diverse change portfolio. Solution architecture may be delivered by a strategic partner — but you will set direction, influence outcomes, and ensure secure, proportionate, high-quality solutions. This role is about clarity over complexity and building a security architecture model that is right-sized, effective and enabling. What You’ll Do Provide security architecture guidance and governance across change initiatives Influence third-party solution designs to ensure strong security outcomes Simplify and evolve the current security architecture operating model Define security vision, principles, reference architectures and roadmaps Oversee design assurance across systems and services Align security strategy with business and technology priorities What You...