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Systems Architect United Kingdom Jobs

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Technical Architect (Investment Systems)
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Technical Architect sought to lead front-to-back evolution of critical investment systems in London. Drive PMS, IBOR, and ABOR integrations, mastering Capital Calls and waterfall distributions. Requires deep Private Equity/Debt domain knowledge, Service Design expertise, and ability to bridge inv...
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United Kingdom , London
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Randstad
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Etrading Infrastructure Systems Architect - Low Latency Engineering
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Join Citi's elite Low Latency Engineering team in London. Architect high-performance trading infrastructure for global Rates and Cross Markets. Leverage deep Linux, systems programming, and network protocol expertise to optimize electronic trading systems. Enjoy a competitive package including bo...
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United Kingdom , London
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Citi
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Systems Architect Consultant
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Join PA's Systems Insights team as a Systems Architect Consultant. Apply your MBSE expertise and tools like Sparx EA or SysML to solve complex, cross-disciplinary challenges in Defence, Energy, or Transport. Enjoy private healthcare, performance bonuses, and flexible working from key UK offices. ...
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United Kingdom , London; Bristol; Manchester
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PA Consulting
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IT Systems Architect Principal
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Lead the IT architecture strategy for BT International's BSS modernization in Aberdare. Define API-first, event-driven integration patterns to drive vendor rationalization and platform transformation. Your expertise in telco systems will enhance product velocity and operational agility in a globa...
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United Kingdom , Aberdare
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Plusnet
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Systems Architect Consultant
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Join PA's Systems Insights team as a Systems Architect Consultant. Apply your MBSE expertise and tools like Sparx EA or SysML to solve complex challenges in Defence, Transport, or Energy. Enjoy benefits including private healthcare, bonus schemes, and flexible UK locations in Bristol, London, or ...
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United Kingdom , Bristol; London; Manchester
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PA Consulting
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Systems Architect
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Join our team as a Systems Architect in Newcastle or Guildford. Design and develop complex geospatial and cloud-based solutions, applying MBSE and frameworks like TOGAF. We offer a competitive package with profit share, flexible hybrid working, and a strong development plan.
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United Kingdom , Newcastle or Guildford
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Airbus
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Technical System & Data Architect
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Shape the future of data architecture for a global energy trading leader in Central London. As a Technical System & Data Architect, you will define enterprise standards, design data flows, and build scalable systems. Your expertise in financial services, TOGAF, and data mapping will drive innovat...
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United Kingdom , Central London
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Eutopia
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Principal System Architect
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Shape the future of smartphones and Windows-on-ARM laptops as a Principal System Architect at Arm in Cambridge. Lead the definition of cutting-edge SoC architectures, from concept to silicon. We seek an expert in SoC hardware architecture with deep domain knowledge in areas like power management ...
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United Kingdom , Cambridge
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ARM
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Chief Systems Architect
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Lead the strategic architecture for innovative fintech payment solutions in London. This senior role requires 15+ years' experience building scalable, fault-tolerant systems with expertise in Hadoop and data-driven frameworks. You will drive enterprise-wide technical vision, ensure engineering ex...
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United Kingdom , London
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SwiftXccess
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Payment Systems Architect
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Join SwiftXccess in London as a Payment Systems Architect. Lead the architectural vision for high-scale payment platforms using Java, Go, and cloud technologies. Your expertise in ISO 20022, PCI DSS, and microservices will drive innovation in digital payments. This is a key role in transforming f...
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United Kingdom , London
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SwiftXccess
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Until further notice

About the Systems Architect role

Systems Architect jobs represent a pinnacle career path in the technology field, focusing on the high-level design and strategic planning of complex IT ecosystems. Professionals in this role, often called Systems Architects or Enterprise Architects, are the master planners of the digital world. They are responsible for creating the overarching blueprint that aligns technology infrastructure with business goals, ensuring systems are robust, scalable, secure, and efficient. Unlike roles focused on specific implementations, Systems Architects operate at a strategic level, defining standards, selecting technologies, and guiding the organization through digital transformation and modernization initiatives.

The core responsibility of a Systems Architect is to analyze business requirements and translate them into a cohesive technical vision. This involves designing the structure of systems, including how different software applications, hardware components, networks, and data repositories interact. They develop architecture roadmaps that outline the journey from current systems to a future target state, often simplifying fragmented landscapes and reducing technical debt. A critical part of their role is making pivotal decisions on technology stacks, integration patterns (like APIs and microservices), data flow, and security protocols. They establish governance models and best practices to ensure all subsequent projects and solutions adhere to the defined architectural principles, promoting reusability and consistency across the organization.

Systems Architects are inherently collaborative leaders. They regularly engage with a wide range of stakeholders, from C-suite executives and business unit heads to software development teams, data engineers, and infrastructure specialists. They must articulate complex technical strategies in business terms, build consensus, and champion architectural standards. Their work is crucial in evaluating and integrating emerging technologies, such as cloud-native platforms, artificial intelligence frameworks, and advanced data analytics tools, into the existing enterprise fabric.

Typical skills and requirements for Systems Architect jobs include a deep, broad understanding of software development, networking, cloud computing (AWS, Azure, GCP), and data management. They require strong analytical and problem-solving abilities to deconstruct complex challenges. Excellent communication and leadership skills are non-negotiable, as is significant experience (often 8+ years) in progressively responsible technical roles, such as software engineering or solutions architecture. A bachelor’s degree in computer science or a related field is standard, with advanced degrees or industry certifications (e.g., TOGAF) being highly advantageous. Ultimately, individuals searching for Systems Architect jobs are seeking a role where they can shape the technological destiny of an enterprise, driving innovation while ensuring stability and strategic alignment.

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