6 junior service designer jobs found in London

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...

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 QUALITY ENGINEER - SC CLEARED - LONDON (1 day on site) - 12 MONTH CONTRACT OUTSIDE IR35 - £400 - £450 PER DAY As a Senior Quality Engineer, you will play a pivotal role in ensuring that digital services are reliable, scalable, and of high quality. Working alongside a multidisciplinary team, you will adopt a strategic approach to quality, ensuring test strategies and plans mitigate risk to the business goals. You will design and execute functional and non-functional tests, design and implement test automation frameworks to assist with testing and enable quality across multiple teams. This is a hands-on role where you will have the opportunity to apply best practices, develop test automation, and integrate quality at every stage of development. Key Responsibilities: Work in multidisciplinary teams to deliver high-impact digital services. Provide technical and strategic leadership for multiple product teams, ensuring alignment with service outcomes and business...

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...

Location: The role is based remotely with occasional travel to London. Daily rate: £400 outside IR35 Duration: Initial 6 months *please note* : must have active SC clearance The Back End Developer will have the following responsibilities: Design, develop, and maintain Back End systems and services using Java. Collaborate with Front End developers and other cross-functional teams to deliver seamless and scalable solutions. Write clean, maintainable, and well-tested code following industry best practices and web standards. Troubleshoot and resolve complex technical issues related to Back End systems. Participate in code reviews and contribute to the continuous improvement of development processes. Ensure high-performance and reliability of Back End services through proper architecture and testing. Leverage Azure services to optimize cloud-based solutions (if applicable). Stay up-to-date with emerging technologies and incorporate them into the...