1 to 25 of 29 Contract Event-Driven Jobs in London

OSS/BSS Solution architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
Salesforce), Billing, Service Orchestration, Inventory, Service Assurance - understanding data models, system processes and integration patterns at implementation level - Integration architecture: microservices, API gateways, event-driven architectures, event brokers (Kafka), queues - handling 120+ integration points across systems and legacy stacks - Lead-to-Cash (L2C) and Order-to-Cash ...

Senior Gen AI Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £700 per day
ideally including Lambda, Fargate/ECS, ECR, Bedrock, S3 and RDS/Postgres* Experience integrating applications via APIs, including REST and async/event-driven patterns* Docker and Kubernetes/EKS experience* Experience operating applications in cloud environments* Strong understanding of security, resiliency, scalability, performance and observability* Experience ...

Full Stack AI Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
such as Java, Python, or Node.js, with exposure to modern frontend frameworks where relevant. Solid experience integrating systems via APIs, including REST and event-driven patterns. Hands-on DevOps expertise covering CI/CD, containerisation, and cloud platforms such as AWS or Azure. Strong understanding of non-functional ...

Forward Deployed Engineers

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500 per day + Inside IR35
architectures Optimize model usage for performance, cost, and latency Cloud-Native Development Develop scalable services using: Microservices architecture Containers (Docker, Kubernetes) Serverless and event-driven patterns Implement CI/CD pipelines and infrastructure as code (e.g., Terraform, Helm) Ensure production readiness, logging, monitoring, and fault tolerance Application Development ...

Booking and Messaging Java Developer (COMBJP00001223)

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day Negotiable
higher, with an elite understanding of multithreading, concurrency models, and non-blocking asynchronous processing. Messaging & Streaming Middleware: Heavy production experience with modern event-driven architectures and distributed streaming tools (e.g., Apache Kafka, RabbitMQ, ActiveMQ, or standard JMS APIs). Reactive Systems: Practical familiarity with Functional Reactive Programming frameworks ...

Senior Data Engineer (Informatica)

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £460/day
familiarity to partner with BI developers and validate end-to-end data flows. AWS ecosystem depth (Athena, Redshift, EC2, CloudWatch, IAM) and event-driven patterns. Certifications (nice to have) AWS Certified Cloud Practitioner (or higher), Azure AI Fundamentals (awareness of ML/AI services). This role requires ...

Principal Technical Lead

Hiring Organisation
RSSB
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
front-end engineering skills in React and TypeScript, including component architecture, state management, and integration with REST/SignalR backends. Solid understanding of event-driven architectures. Hands-on experience with PostgreSQL or comparable relational databases. Experience with API and application security. Practical knowledge of Python, including frameworks such ...

Java Software Engineer

Hiring Organisation
Sanderson Recruitment
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day + Inside IR-35
Exposure to Node.js and TypeScript Experience working with JavaScript-based frontends Azure DevOps or GitHub Actions Docker and Kubernetes Microservices architecture Messaging or event-driven systems Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built ...

Technical Architect

Hiring Organisation
SR2
Location
London, United Kingdom
Employment Type
Contract
regulated and highly governed environments Drive adoption of modern DevOps, CI/CD and Infrastructure as Code approaches Work across microservices, APIs, event-driven architectures and container platforms Collaborate with security, infrastructure and delivery teams to ensure operational resilience and scalability Support technical assurance, governance and stakeholder engagement ...

API Backend Engineer (MCP)

Hiring Organisation
AMS Contingent
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
role: As a API Backend Engineer (MCP) you will be responsible for: Design, develop, and maintain backend services and APIs (REST and event-driven). Build and operate APIs and MCPs using Apigee Hybrid/X. Apply API standards and industry best practices for design, versioning, security, documentation ...

Senior Full Stack Developer (React & C#.NET)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
data pipelines and analytics is a plus. Power BI: Familiarity with developing dashboards and data models. Architecture: Knowledge of microservices, API design, and event-driven architectures. DevOps/CI/CD: Experience with Azure DevOps, GitLab, GitHub Actions, or similar tools. Cloud Platforms: Proficient in Azure … reports. CI/CD Implementation: Collaborate with DevSecOps to optimise CI/CD pipelines, ensuring automated testing and deployment. Architecture Contribution: Contribute to event-driven and distributed system designs using technologies like Kafka or Event Hub. Mentorship: Guide junior developers and foster a collaborative atmosphere within ...

Go Engineer

Hiring Organisation
Arrows Group Professional Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
Senior Go Engineer to help build and scale platforms used by millions of customers. Tech Stack: * Golang * AWS * Kubernetes * Docker * Terraform * Microservices * Event-Driven Architecture * CI/CD What you'll bring: * Strong commercial Golang experience * Proven experience building distributed systems at scale * AWS and Kubernetes expertise * Experience ...

AWS Technical Architect

Hiring Organisation
Opus Recruitment Solutions
Location
Remote work, South Bank, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£0 - £600/day
environment, helping to design and shape modern, scalable architectures that support critical government services. Experience Cloud & architecture expertise - strong AWS architecture experience, including event-driven systems (e.g. Kafka) and RESTful API design. Data & public sector experience - experience with document-based databases (e.g. MongoDB) and a solid understanding ...

Software Architect

Hiring Organisation
X4 Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Competitive salary
design patterns, and engineering best practices. Provide hands-on technical leadership while remaining actively involved in solution design and development. Design secure, scalable, event-driven architectures using modern integration technologies. Lead architectural decision-making across APIs, messaging, integration, and cloud services. Ensure solutions are designed for resilience, recoverability ...

Platform Architect - (DLT, Tokenization, Digital Assets)

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£800 - £1000 per day
digital asset platforms/blockchain ecosystems Proven experience defining and governing architecture standards, patterns, and roadmaps Strong understanding of API-driven architectures, event-driven systems, and integration patterns Experience with cloud platforms (Azure preferred), CI/CD, and DevSecOps practices Strong expertise in security-by-design, identity ...

Integration Architect

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day
enterprise systems Desirable Skills Knowledge of SWIFT messaging standards: ISO 15022 ISO 20022 Experience working with HP NonStop/Tandem systems Familiarity with event-driven architectures (Kafka) Soft Skills Were looking for someone who is: A team player, comfortable with peer reviews and collaboration Able to mentor ...

Salesforce/SFI Solution Architect

Hiring Organisation
Lawrence Harvey
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
insurance use cases. Integration/MuleSoft Strong experience in integration architecture and MuleSoft (Preferred) . Experience designing and implementing: REST/SOAP APIs Event-driven and batch integration patterns Real-time and asynchronous integrations Data synchronisation and middleware orchestration Ability to define integration patterns, error handling, monitoring ...

Data Solutions Architect (SC Cleared)

Hiring Organisation
TXP
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£500 - £550 per day + Inside IR35
/CD, DevOps) aligned to landing-zone/enterprise-scale guardrails (e.g. Azure CAF). Design modern enterprise integration patterns (APIs, event-driven and service-based approaches). Produce clear, auditable artefacts for governance and assurance (HLD/LLD, ADRs, options appraisals). Act as design authority lead ...

Senior Kotlin Engineer (XP, GCP) - Investment Banking - London

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £800 per day
code quality, system reliability, and performance. Required & Desirable Skills Strong commercial experience building backend services using Kotlin Experience with event-sourced and event-driven architectures Deep familiarity with XP practices, including: Mob programming as a primary way of working Test-driven development (TDD) Continuous refactoring ...

Senior Outsystems Developer, £300-350 per day inside IR35

Hiring Organisation
Bench IT
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £350 per day
deliver solutions independently with minimal oversight. Experience with C#/.NET development. Understanding of API management and API gateway patterns. Experience working with event-driven architectures, including messaging and queue-based integration patterns. Desirable – Exposure to AI technologies, including Generative AI, machine learning services, AI-assisted development tools ...

Principal Engineer

Hiring Organisation
Method-Resourcing
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £625 per day
architecture, mentoring leads, and unblocking delivery. Essential Skills & Experience Proven Principal-level experience (80% Architecture/design - 20% Coding) Strong in AWS, TypeScript, event-driven systems Experience with high-scale distributed systems Someone collaborative, hands-on, and pragmatic Desirable Salesforce Experience as this is their main CRM system ...

Amazon Connect Solution Architect - WELL PAID! fully remote

Hiring Organisation
Gazelle Global Consulting Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
required: End-to-end Amazon Connect solution architecture Contact flows, IVR, routing profiles, queues, and agent experience AWS Lambda, Lex Bots, APIs, and event-driven integrations Strong AWS cloud architecture background Integrations with Salesforce, ServiceNow, and other platforms Contact Lens, analytics, call recording, and reporting capabilities Security architecture ...

Data Modeler

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£375 - £425 per day
lakes, data platforms, and modern cloud environments. Experience working with AWS, Snowflake, or comparable cloud-based data storage and analytics platforms. Familiarity with event-driven architectures and streaming technologies, including Kafka. Strong understanding of data governance, metadata management, and data lineage frameworks. Ability to collaborate effectively with both ...

Solution Data Architect - Confluent flink

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£428 - £429/day
Solution Data Architect Strong knowledge of: Data modelling Integration patterns Enterprise data architecture design Confluent Flink experience (highly desirable) Experience with event-driven architectures/data streaming Exposure to tools such as Erwin, Power Apps, or Dataverse (desirable) Strong stakeholder engagement skills across technical and non-technical teams ...

M365 SME

Hiring Organisation
e2e Infosys
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day
transformation programs Strong command over ISO 8583, transaction lifecycle, and routing logic Expertise in: Distributed systems and microservices architecture API-first and event-driven designs Hybrid/cloud infrastructure models Strong understanding of HSMs, cryptography, and secure transaction processing Domain Expertise on Card payment ecosystems ...