44 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...

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...

UI/UX Designer – Flagship Trading Platform (Finance) 📅 Contract: 12 months 💰 Rate: Up to £700/day (Outside IR35) 📍 Location: London (City) – Hybrid (1 day per week onsite) 🚀 The Opportunity Join one of the world’s leading investment banks as a UX/UI Designer on their flagship trading platform , now rolling out across the full Capital Markets business. Backed by senior leadership and embraced by users, this platform is transforming how trading teams operate — and you’ll be at the heart of its evolution. This role requires someone is is very strong with both UX and UI. Someone who is vastly experienced in Pixel perfect design without the need for wireframes etc. This is a high-impact, high-visibility role on a long-term programme that's shaping the future of institutional trading. With a strong design system in place and a clear strategy ahead, it's the perfect time to join and make your mark . You’ll enjoy flexible working (just 1 day a week...

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...

We are seeking a Senior Azure Platform Engineer to support the delivery of a critical, Internet-facing cloud platform within a regulated legal services environment. The organisation is standing up a secure, scalable Azure-based platform to support consumer-facing workflow operations. This is a delivery-critical programme with tight timelines, requiring an experienced engineer who can bridge the gap between architectural design and hands-on implementation. You will work closely with the internal Cloud Centre of Excellence (CCoE), project delivery teams, and technical architects to implement secure, automated, production-grade Azure infrastructure while foundational cloud capabilities continue to mature. This is a highly hands-on role requiring strong Azure platform engineering expertise, Infrastructure-as-Code automation, and security-first thinking. Project Context Delivery of a new Azure-hosted platform supporting regulated, consumer-facing operations...

Senior Service Delivery Manager - Carve-Out Programme £750 to £800 per day | Outside IR35 12-month contract Hybrid | 1 to 2 days per week onsite in London We're seeking an experienced Senior Service Delivery Lead to play a pivotal role in a carve-out programme. Proven experience in carve-out programmes for a multi-site organisation is essential for this role. Key Responsibilities Lead end-to-end service transition activities for new and existing services, ensuring smooth handover into BAU. Define, maintain, and enforce service transition frameworks, governance, and standards. Coordinate readiness assessments, acceptance criteria, and onboarding processes. Design operational and support models, aligning internal teams and outsourced partners. Work with outsourced providers to set clear SLAs, KPIs, RACI responsibilities, escalation paths, and communication channels. Facilitate knowledge transfer, documentation handover, tooling setup, and...

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...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Ruby on Rails Developer | Outside IR35 | Remote We're working on a large Gov project and on the lookout for a Ruby on Rails Developer to support and enhance a live GOV.UK service. This is a hands-on opportunity for a collaborative engineer who enjoys working across the stack, contributing to architectural decisions, and delivering meaningful user impact within an agile environment. The Role You'll join an autonomous, multidisciplinary team responsible for refining and improving a live digital service. Working across Ruby on Rails and Java (Spring Boot), you'll help deliver scalable, secure solutions in AWS, ensuring changes are robust, well-tested, and user-focused. Key Responsibilities Collaborate with technical and non-technical stakeholders to enhance a live GOV.UK service Build and maintain Back End services using Java (Spring Boot) and PostgreSQL Develop and improve Front End features using Ruby on Rails and GOV.UK Frontend Contribute to architectural...

Position : Salesforce Developer Day Rate : 350 GBP/Day (Outside IR35) Duration : 6 Months to Start Location & Travel : London / Manchester / Portsmouth / Glasgow ( Weekly 3 days at Office) Job Description Main purpose of role: Responsible for designing, developing and implementing high-quality Salesforce solutions that align with strategic objectives and the long-term platform vision. Acts as a senior technical contributor, providing depth of expertise, strong delivery capability and pragmatic problem-solving across the Salesforce platform. Key Responsibilities Design and develop robust Salesforce solutions using Apex, Lightning Web Components, integrations and other Salesforce ecosystem technologies, in line with agreed architectural standards. Deliver business change on the Salesforce platform in alignment with agreed priorities, roadmap and delivery plans. Produce clear and accurate technical documentation, including design notes,...

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 Salesforce Business Analyst 12-month contract, Outside IR35, London (4 days), To £650/day Senior Business Analyst is required by well-established organisation with operations across the UK and Europe. They focus on delivering high-quality services to a diverse client base, emphasizing innovation, efficiency, and sustainable practices. They need an experienced Senior BA with expertise in Salesforce . Role Overview The Senior Business Analyst will support a key business project by implementing technology to enhance service offerings. You will collaborate with technology teams, stakeholders, and delivery groups to gather requirements, analyze processes, and provide documented insights for system enhancements across the full life cycle. Key Responsibilities Lead requirements gathering sessions and map current/future processes. Analyze impacts and document insights for cross-functional technology changes. Create standardized requirements, User Stories,...

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...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Staff Engineer- Backend JavaScript (Node.js/TypeScript) Contract - Outside IR35 Location: London/Hybrid (once every two weeks) Contract: Outside IR35 Duration: 6 months initial (extension likely) Our client, an innovative and forward-thinking technology business, is looking for a Backend JavaScript Staff Engineer to join a high-performing engineering team. This is a fantastic opportunity for a highly experienced, hands-on Back End engineer who enjoys solving complex technical problems, building scalable systems, and providing technical leadership across teams. You will play a key role in shaping Back End architecture, improving platform reliability and performance, and raising engineering standards while remaining deeply involved in hands-on delivery. The Role As a Staff Engineer, you will work across multiple teams to drive technical direction and deliver robust Back End services. You'll lead by example through high-quality code, architectural guidance, and...