29 senior technical architect jobs found in Milton Keynes

Role: Security Architect Status: Outside IR35 Contract Work model: 2 days on site Clearance: Active SC Clearance required Duration: 5th of Jan to 31st of May 2026 Responsibilities: Lead the design and delivery of secure architectures across enterprise, cloud, and on-prem environments. Perform threat modelling, risk assessments, and security reviews for new and existing solutions. Define and maintain security architecture standards, patterns, and technical controls. Provide expert cyber security guidance to engineering teams, stakeholders, and senior leadership. Evaluate and recommend security technologies to strengthen organisational resilience.

Senior Data Architect We are seeking a highly experienced Senior Data Architect to lead the design, governance and strategic evolution of our enterprise data ecosystem. This role requires a visionary who can translate complex business needs into scalable data solutions while partnering closely with C-suite executives to shape data strategy, drive digital transformation and influence enterprise-wide decision-making. This is a very strategic focussed, high-impact role where you will work also closely with the Data Systems Manager to ensure that all solutions meet the data governance standards and cybersecurity requirements. You will work across all areas of the enterprise to deliver and maintain the Digital Services strategy. Hybrid working - 2 days Outside IR35 Key skills/experience Significant experience in data solution architecture within large, complex organisations. Bachelor's or Master's degree in Computer Science, Information Systems, Data...

Senior Data Architect We are seeking a highly experienced Senior Data Architect to lead the design, governance and strategic evolution of our enterprise data ecosystem. This role requires a visionary who can translate complex business needs into scalable data solutions while partnering closely with C-suite executives to shape data strategy, drive digital transformation and influence enterprise-wide decision-making. This is a very strategic focussed, high-impact role where you will work also closely with the Data Systems Manager to ensure that all solutions meet the data governance standards and cybersecurity requirements. You will work across all areas of the enterprise to deliver and maintain the Digital Services strategy. Hybrid working - 2 days Outside IR35 Key skills/experience Significant experience in data solution architecture within large, complex organisations. Bachelor's or Master's degree in Computer...

Google Cloud Architect – Contract 6 Months – Outside IR35 £600 per day SC or DV Clearance (UKSV) Required Hybrid: Home + 3 days/week onsite in Central London Are you a Google Cloud specialist with a passion for designing secure, mission-critical systems? We’re looking for a Google Cloud Architect to join a specialist systems integrator delivering into UK Government on a major multi-year transformation programme. This is an opportunity to shape and implement some of the most strategically important government systems in operation today. You’ll architect next-generation platforms that protect national capability — working alongside some of the best engineers in the industry in an environment where innovation, precision and security are paramount. What You’ll Be Doing Designing and delivering secure, scalable and resilient architectures in Google Cloud Platform (GCP) and Google Distributed Cloud (GDC) . Engineering solutions for disconnected...

Rate: £650-£680 Outside IR35 Duration: 6 months initially Location: Remote (London 1-2 days per month) Start date: Urgent Role Summary We are seeking a senior technical leader to oversee the architectural direction and delivery of a complex Telco cloud transformation. This role requires an individual capable of operating confidently with executive stakeholders while also guiding engineering teams performing detailed design and build activities. The Lead Architect will define and safeguard the overall technical architecture, ensuring the migration from VMware technologies to Red Hat and Wind River platforms is executed cohesively, securely, and in accordance with regulatory and vendor standards. This position holds responsibility for the integrity of the solution, the technical governance framework, risk management, and the alignment of all workstreams contributing to the programme. The individual will act as the authoritative voice on platform design, quality,...

Our client is a rapidly growing, London-headquartered oil derivatives trading house with significant market presence in global energy markets. They operate a dynamic, entrepreneurial trading environment with substantial annual trading volumes The business is experiencing fast growth and requires a hands-on Senior DevOps Engineer (Contract). Senior DevOps Engineer (Contract) London – 5 days onsite Contract Type: Outside IR35, 6 month initial term with extension potential Job Responsibilities Lead the design and architecture of complex, scalable software solutions, applying innovative and forward-thinking approaches to technical challenges. Establish technical direction and best practices for secure, high-quality production code across the organization. Drive strategic automation initiatives to proactively identify and remediate recurring issues, significantly enhancing operational stability and system reliability. Architect and standardize containerization...

Initial 6 month contract, high likelihood of significant extension Up to around £800-£1,000 per day (Outside IR35) London based international law firm A leading international Professional Services firm is starting a major programme to refresh its billing and order to cash technology. As part of this, the firm is introducing a new workflow system that will integrate with Oracle and automate key business processes. They are looking for an experienced Oracle Solutions Architect to shape the solution and guide the technical delivery. This role suits someone who enjoys owning design decisions, working closely with finance and operations, and leading the technical direction of a high-profile project. What you will do: Design the overall solution for a new workflow and automation platform. Map end to end order to cash and billing processes. Define integration patterns, data flows and API requirements between Oracle and the new system. Produce clear architecture documents...

Solutions Architect - (Payments) (Contract) We are seeking an accomplished Solutions Architect to lead the strategic design and architectural direction for a critical payments program. This high-priority engagement focuses on addressing technical debt and defining the clear future-state architecture for a major client. The role is focused on strategic analysis, design, and governance, working directly alongside the Embedded Domain Specialist. Engagement Details Role: Senior Architect (Strategy and Design Focus) Contract Status: Outside IR35 Initial Duration: 12 Weeks Start Date: January 2026 Rate: £500 - £550 per day (Negotiable based on experience) Working Pattern: Hybrid, aligned with Domaina Specialist working patterns. Scope of Work The Architect will be responsible for establishing architectural clarity, coherence, and long-term stability: Architectural Review: Conduct a detailed review of the current state architecture across relevant platforms...

Contract Infrastructure Architect / Senior Infrastructure Engineer Outside IR35 £500 per day | Defence & Security | Hampshire Contract position at a defence consultancy operating at the forefront of national security initiatives for an infrastructure architect/senior engineerPLEASE NOTE - The nature of this project will require the work to be carried out onsite and successful candidates will be required to be security cleared (SC Level) prior to appointment.You'll lead the build of JEDI-X, guiding the technical team and supporting its use through the experimentation phase. You'll look after multi-classification virtualised collaboration and development environments, keeping them secure and improving them over time. You'll work with internal infrastructure teams to strengthen Secure by Design across business and projects, and support Office 365 plus project systems in public, private and hybrid clouds. You'll handle infrastructure changes, monitor alerts and tickets, patch...

Contract Infrastructure Architect / Senior Infrastructure Engineer Outside IR35 £500 per day Defence & Security Hampshire Contract position at a defence consultancy operating at the forefront of national security initiatives for an infrastructure architect/senior engineer PLEASE NOTE - The nature of this project will require the work to be carried out onsite and successful candidates will be required to be security cleared (SC Level) prior to appointment. You'll lead the build of JEDI-X, guiding the technical team and supporting its use through the experimentation phase. You'll look after multi-classification virtualised collaboration and development environments, keeping them secure and improving them over time. You'll work with internal infrastructure teams to strengthen Secure by Design across business and projects, and support Office 365 plus project systems in public, private and hybrid clouds. You'll handle infrastructure changes, monitor alerts and tickets,...

Contract Infrastructure Architect/Senior Infrastructure Engineer Outside IR35 £500 per day | Defence & Security | Hampshire Contract position at a defence consultancy operating at the forefront of national security initiatives for an infrastructure architect/senior engineer PLEASE NOTE - The nature of this project will require the work to be carried out onsite and successful candidates will be required to be security cleared (SC Level) prior to appointment. You'll lead the build of JEDI-X, guiding the technical team and supporting its use through the experimentation phase. You'll look after multi-classification virtualised collaboration and development environments, keeping them secure and improving them over time. You'll work with internal infrastructure teams to strengthen Secure by Design across business and projects, and support Office 365 plus project systems in public, private and hybrid clouds. You'll handle infrastructure changes, monitor alerts and tickets,...

Full job description Data Architects – ADF / Databricks / Data Governance £425–£475 per day (Outside IR35) 6-month contract Hybrid – Bournemouth or Guildford (ideally 3 days onsite/week) Experience: 15+ years We are seeking  two highly experienced Data Architects  to support a major data and AI transformation programme. This role requires deep technical expertise, strong architectural leadership, and the ability to drive high-impact conversations across business and technical teams. The Opportunity You will play a key role in shaping and delivering enterprise-scale data architecture across Azure, working with modern data engineering and AI/ML technologies. This is a hands-on architectural position suited to individuals passionate about designing best-practice data platforms, governance frameworks, and scalable cloud solutions. You will collaborate with multidisciplinary teams—including...

Role: BI Manager Rate: £500.00 Per Day - Outside IR35 Location: Central Birmingham, West Midlands (Hybrid Working - 2 days per week onsite) Duration: Initial 3 - 6 months with potential to go Permanent We are currently working with a leading services provider who require a technically strong, Midlands based Senior BI Manager with a good understanding of Azure Data and Data Engineering tools. Working as a key member of a newly formed Data Engineering team, the successful candidate will lead the design, development, and ongoing enhancement of the client's data and reporting infrastructure. You will be the strategic owner of the Azure Data Platform, overseeing services such as Azure Data Lake, Data Warehouse, Data Factory, Databricks, and Power BI. The technical focus is all Microsoft, primarily Azure so any Fabric experience would be very beneficial. Our client is looking for someone who is going to lead the function, and has previous experience doing this. Someone who...

Remote 12 + month contract outside IR35 - must be UK based. Multi-module SAP Success Factors rollout across European region Logistics company experience preferred. SAP SuccessFactors Architect - Global Logistics Company 12 + Month Contract - Outside IR35 - Remote Role Overview The SAP SuccessFactors Architect will provide end-to-end solution design, governance, and technical leadership for a multi-module SuccessFactors implementation covering Recruiting, Onboarding, Employee Central, and Payroll (ECP). This role ensures architectural integrity, system scalability, and alignment with business processes in a logistics-driven HR environment. Key Responsibilities Lead overall architecture and solution design for SuccessFactors across all implemented modules Define integration strategy, data models, and technical governance framework Provide expert guidance on SuccessFactors best practices, system capabilities, and configuration standards...

SAP SuccessFactors Architect - Global Logistics Company12+ Month Contract - Outside IR35 - RemoteRole Overview The SAP SuccessFactors Architect will provide end-to-end solution design, governance, and technical leadership for a multi-module SuccessFactors implementation covering Recruiting, Onboarding, Employee Central, and Payroll (ECP). This role ensures architectural integrity, system scalability, and alignment with business processes in a logistics-driven HR environment. Key Responsibilities Lead overall architecture and solution design for SuccessFactors across all implemented modules Define integration strategy, data models, and technical governance framework Provide expert guidance on SuccessFactors best practices, system capabilities, and configuration standards Oversee design decisions across Recruiting, Onboarding, Employee Central, Payroll, and integrations Validate functional and technical designs from implementation teams Conduct impact assessments for new...

AWS ArchitectOutside IR35: £600 - £700 per dayASAP Start (5th Jan)Travel once a week / once every two weeks to LondonA leading international streaming platform is consolidating and modernising the core backend services that power its global content distribution. Multiple integration layers currently handled by external vendors are being brought fully in-house to enable stronger ownership, performance optimisation, and scalability. We are seeking a seasoned AWS Architect with deep API integration expertise to drive the design and delivery of secure, high-performance cloud services that underpin millions of users across North America and beyond. You will work closely with engineering squads to architect the solutions and ensure technical readiness for delivery teams. Key Responsibilities • Lead the architecture, design, and documentation of AWS cloud services and backend API integrations • Define API specifications, ensure conformance to design patterns, and prepare implementation...

AWS Architect Outside IR35: £600 - £700 per day ASAP Start (5th Jan) Travel once a week/once every two weeks to London A leading international streaming platform is consolidating and modernising the core Back End services that power its global content distribution. Multiple integration layers currently handled by external vendors are being brought fully in-house to enable stronger ownership, performance optimisation, and scalability. We are seeking a seasoned AWS Architect with deep API integration expertise to drive the design and delivery of secure, high-performance cloud services that underpin millions of users across North America and beyond. You will work closely with engineering squads to architect the solutions and ensure technical readiness for delivery teams. Key Responsibilities Lead the architecture, design, and documentation of AWS cloud services and Back End API integrations Define API specifications, ensure conformance to design patterns, and prepare...

Salesforce Developer (Full Stack) 📍 Location: UK / Remote Outside of IR35 Contract - £500 to £600 🕓 Type: Full-time We are looking for a Full Stack Salesforce Developer to help build scalable solutions that power our Lead-to-Order processes. In this role, you’ll work closely with our Technical and Solution Architects to design secure, reusable components using Apex, Lightning Web Components, APIs, and event-driven architecture. What you’ll be doing Develop Apex classes, triggers, Lightning Web Components (LWCs), and Flow Invocable Actions Build integrations using MuleSoft, REST APIs, and Platform Events Work on Lead-to-Order flows including pricing logic, order activation and fulfilment Deliver secure, performant, and compliant code within our governance framework Contribute to CI/CD pipelines with GitHub or Copado Participate in design workshops, code reviews & deployment checks Translate user stories and functional requirements into technical solutions What we’re...

Job Title : MS Dynamics eCommerce Solution Architect Location: London, UK (Hybrid) Contract Type: Contract Start Date: Immediate Duration: 12 months Salary: Competitive, based on experience Clearance: Active SC Clearance or Eligible About the Role: We are seeking a Dynamics eCommerce Solution Architect with specialized expertise in Microsoft Dynamics Order Management to design and implement a headless eCommerce solution for our public sector clients. This role also involves enhancing Dynamics 365 Finance and Operations (F&O) capabilities to support the integration and automation of order management processes. The architect will provide strategic guidance and technical leadership, ensuring robust, scalable, and secure eCommerce implementations. Key Responsibilities eCommerce Solution Architecture: Design and implement a headless eCommerce architecture using Microsoft Dynamics, focusing on optimizing order management processes to...

Senior Frontend Developer (Contract) London - 5 days onsite Contract Type: Outside IR35, 6 month initial term Our client is a rapidly growing, London-headquartered oil derivatives trading house with significant market presence in global energy markets. They operate a dynamic, entrepreneurial trading environment with substantial annual trading volumes The business is experiencing fast growth and requires a hands-on Senior Frontend Developer (Contract). Job Responsibilities Architects and delivers innovative UI solutions for front office trading applications, designing and developing high-performance, intuitive interfaces that meet the demanding requirements of capital markets professionals Develops secure, high-quality production code for mission-critical trading systems, and conducts comprehensive code reviews to ensure engineering excellence across the team Provides technical leadership to front-end engineering teams, mentoring developers and...