21 of 21 Design Patterns Jobs in the City of London

Responsibilities Lead the design, development, and delivery of scalable full-stack applications Architect robust, maintainable solutions using modern design patterns and best practices Collaborate cross-functionally with product owners, designers, and engineers to deliver high-impact features Facilitate and contribute to Agile ceremonies (sprint planning … using TypeScript/React and C#/.NET (or similar technologies) Deep understanding of software engineering principles, including modular architecture and design patterns Proven experience designing and developing RESTful APIs and microservices Experience architecting end-to-end systems across frontend, backend, and data layers Strong knowledge ...

deliver microservices based architectures, enabling modular, resilient, and highly scalable platforms Define and govern API first strategies, including RESTful service design, integration patterns, and API lifecycle management Apply TOGAF principles and frameworks to drive structured architecture development and governance Translate business and technical requirements into robust, future … solution architecture, from strategic vision and CXO engagement through to hands on implementation Conduct architecture and solution assessments, including product selection, architectural patterns, and sourcing strategies Develop and maintain architecture roadmaps, providing strategic direction and technical leadership Mentor engineering and architecture teams, promoting best practices in modern software ...

Defence & National Security Role Summary Our client is seeking DV cleared Backend Developers to support high impact Defence and Security programmes. You will design, build and operate secure, cloud-native backend services that underpin mission-critical national systems. This is a hands on engineering role, focused on building … delivering production systems. Strong coding ability in Java, Python and/or JavaScript/TypeScript. Solid understanding of backend engineering fundamentals, design patterns and API design. Experience working in Agile teams (e.g. Scrum, Kanban). Strong communication skills and a collaborative mindset. Cloud & Engineering Experience building backend ...

Frameworks & Architecture: Spring Boot, gRPC/Protocol Buffers, integration/orchestration frameworks (e.g., Apache Camel, Spring Integration), and pipeline/adapter design patterns (retry, dead‐letter queues, error isolation). Cloud & Infrastructure: Cloud platforms (GCP, AWS), container orchestration (Kubernetes, Docker), and JVM tuning for containerized workloads. Observability … high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual TLS, secrets management, and certificate rotation. Domain Knowledge: Equities, post‐trade, or financial services experience; trade lifecycle concepts, asset servicing, position management ...

best practices such as peer code review and pair programming Clear understanding of fundamental computer science and software engineering concepts (e.g. design patterns, test-first design, SOLID principles) Desirable Familiarity with both Monolithic and Microservices-based systems A background in a product-led environment where ...

Strong knowledge of PostgreSQL (Postgres) - including schema design and query optimization Solid understanding of object-oriented programming principles and design Patterns Familiarity with front-end development and integration using HTML and JavaScript Experience with Jenkins and modern CI/CD practices Proficiency in AWS services ...

deliver scalable, upgradeable, and low-technical-debt applications. Integration – Design and implement secure, high-performing integrations with APIs, middleware, and event-driven patterns to ensure seamless data flow and system interoperability. DevOps & Automation – Apply branching strategies, CI/CD pipelines, test automation, and 2GP packaging to enable …/CD pipelines, 2GP packaging). Skilled in SOQL/SOSL optimisation and scalable data modelling. Strong grasp of Salesforce design patterns, component-based development, and secure coding practices. UI/UX development aligned with accessibility standards (WCAG) and responsive design. Advanced version control (Git) and deployment ...

blockers early in the delivery lifecycle Drive best practices across software engineering, DevOps, and agile ways of working Contribute to architecture and design decisions, ensuring long-term maintainability Provide clear updates to stakeholders, supporting informed decision-making Key Skills & Experience Strong background in software engineering, either … technical delivery Experience working directly with clients or stakeholders in a consultative environment Strong understanding of agile methodologies, design patterns, and best practices Experience with test-driven development and modern testing approaches Proficiency with version control tools (e.g. Git) Solid understanding of cloud platforms (AWS, Azure ...

Year FTC London Based - 2/3 days in Office We’re looking for a Mid Data Engineer to help design, build, and operate scalable, reliable, and high-quality data infrastructure across a modern Microsoft-based data platform. This role sits at the intersection of software engineering … Data Factory, Lakehouse, etc.) Design reliable ingestion processes from APIs, databases, and file-based sources Apply best-practice pipeline design patterns for resilience and re-runnability Data Modelling & Analytics Enablement Design analytical data models that are performant, maintainable, and business-friendly Apply dimensional ...

beneficial but not essential) Strong collaboration and communication skills 4+ years of experience in data-focused software development, including data modelling, design patterns, and building scalable, secure systems Working knowledge of software engineering principles and best practices, including testing, packaging, API design, DevOps, DataOps ...

discipline to ship reliable software at scale. Key Responsibilities - Build and maintain applications in C# and .NET (Core/6+/8+) - Design and implement RESTful APIs and service integrations - Work with relational databases and Entity Framework - Write clean, well-tested code and contribute to architectural decisions - Diagnose … with Azure or AWS cloud services - Working knowledge of Git, CI/CD, and modern DevOps practices - Solid understanding of OOP, design patterns, and SOLID principles What You'll Bring - Curiosity to dig into systems and turn findings into shipped improvements - Strong written communication and ability ...

Monitoring tools, particularly Grafana Experience working with large-scale backend systems (1M+ DAU) Strong knowledge of web protocols, application servers and design patterns Git, Gradle, Maven, CI/CD and Cloud Build proficiency Benefits: Competitive salary and remote working flexibility Private healthcare, life assurance, and income protection ...

platforms. • Introduce new platform capabilities and integrate strategic data sources in line with enterprise priorities. • Define and own data platform architecture, design patterns, and engineering standards. Platform Engineering & Architecture • Lead the implementation of data architecture and data engineering frameworks across ingestion, data layers, semantic layers, and consumption. ...

technical requirements for the role are: Must haves: Ability and experience in system programming using Golang. This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Proven experience developing production-grade RESTful APIs ideally with … Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets ...

international team. BONUS SKILLS: Expertise in low-latency or real-time development with sub-microsecond latency. Experience with LockFree containers and related design patterns. We encourage you to apply even if you think you may not currently fit all these requirements – so long as you have proven academics ...

strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Build and maintain RESTful APIs and microservices that power secure …/or Kubernetes. Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc. Solid understanding of MongoDB and NoSQL design patterns. Prior experience in Payments Processing, financial services, or banking systems. Strong communication skills and a bias toward action and opinionated design decisions. ...

within the UK financial sector is embarking on a major data transformation programme. They are looking for an experienced Data Engineer to help design and deliver a modern, cloud‐first data platform that will underpin some of the organisation’s most critical functions. Responsibilities: Design, build …/CD practices using industry-standard tools (e.g., GitHub Actions, Azure DevOps). Strong understanding of data architecture principles and cloud-native design patterns. Essential Criteria Demonstrated ability to lead technical delivery, mentor engineering teams and collaborate with stakeholders to ensure alignment between data solutions and business strategy. ...

interacting with and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets for long-running tasks, optimistic updates, progress states, idempotent actions. Proficiency in integration, component and unit testing … preferably with GitHub Actions. Nice to have Some experience in backend system development (ideally using Golang). This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Familiarity with the OpenAPI specification and code generation toolsets ...

Principal Network Architect , you will be a trusted advisor, technical authority, and strategic partner to our clients. You will lead the design of complex, secure, and scalable network architectures, translating business requirements into robust technical solutions. This role combines technical leadership, solution architecture, consultancy, and pre-sales engagement … levels. You will work closely with customers, sales, delivery teams, engineering functions, and senior stakeholders—guiding engagements from initial concept through to detailed design, delivery oversight and operational readiness. Key Responsibilities Client Engagement & Consultancy Operate as a trusted advisor for key clients and prospective customers (new logos). ...

Remote based position Responsibilities: Lead the design and development of RESTful and SOAP APIs using MuleSoft Anypoint Platform, applying API-led connectivity principles (System, Process, Experience layers). Own and deliver complex Mule flows integrating cloud and on-premises applications, databases, and third-party systems, providing technical leadership … enforce best practices for unit testing using MUnit, ensuring high test coverage and quality standards. Lead deployment strategies and contribute to the design and optimisation of CI/CD pipelines. Provide BAU support (2030% of time), including leading incident resolution, delivering hotfixes, and conducting root cause analysis within ...

routing logic to ensure alignment between Marketing, Sales, and RevOps, while maintaining accurate attribution and reporting integrity. Partner with Marketing leadership to design and operationalise scalable attribution and funnel measurement frameworks aligned to RevOps definitions (e.g., MQL → S2 → Closed Won), ensuring consistency between HubSpot, Salesforce, and executive reporting. … Support the Marketing and Web teams on HubSpot CMS architecture and optimisation (templates, modular content structures, SEO performance, analytics), ensuring scalable and reusable design patterns. Partner with Marketing and Web teams to ensure HubSpot content structures support AI‐driven discovery (e.g. semantic structure, structured content models, conversational query ...