1 to 25 of 48 Contract ECMAScript Jobs in London

requires someone who can work across the full development lifecycle while collaborating closely with both technical and non-technical stakeholders. Tech Stack Frontend React JavaScript/TypeScript HTML5, CSS3 Backend C# .NET Core/.NET ASP.NET Core REST APIs Cloud & Data Microsoft Azure SQL Server Docker CI/CD Pipelines ...

processes Ensure solutions meet security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure ...

backend and DevOps teams across the full delivery lifecycle Required Experience Strong experience in UI or Frontend Architecture within complex environments Expertise in React, JavaScript (ES6+), TypeScript, HTML5 and CSS3 Experience designing SPA or micro-frontend architectures Strong understanding of API integration (REST, API gateway patterns, BFF) Experience working ...

technology- Strong programming experience with Java, SpringBoot, JPA, Hibernate, Junit, RestAssured and Mockito Front End technology - Experience with React JS, Redux, Axios, CSS, JavaScript, and HTML Database - Experience with SQL (MS SQL preferred) Cloud technology - Experience with aPaaS Openshift V4 DevOps tools - Experience with GitLab, Stash, Jenkins, Nexus, JIRA, Confluence ...

team Required Skills & Experience - Strong experience building enterprise and web-based applications - Proficiency in C#, .NET/ASP.NET - Front-end skills including HTML5, CSS3, JavaScript - Experience with REST APIs, JSON - Familiarity with Git and modern development tools (e.g. Visual Studio) Desirable Skills - .NET Core/.NET 5+ - Angular, Blazor ...

London) Overview SC Cleared freelancer needed with a frontend focus to build modern, scalable web applications, with some backend/API work. Tech & Skills JavaScript/TypeScript, React/Angular/Vue Node.js, REST/GraphQL APIs HTML, CSS, responsive & accessible design Testing (Jest/Cypress), CI/ ...

based environments Strong focus on automation and continuous improvement Good collaboration and problem-solving skills Technical Experience (some of): Programming/scripting (Python, Java, JavaScript, etc.) CI/CD tools (GitLab, Jenkins) IaC (Terraform, Ansible) Containers (Docker, Kubernetes) Cloud (AWS, Azure, GCP) Observability (Prometheus, Grafana, ELK) Git/source control ...

across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

Sales Dataverse Power Platform Power Apps (Model-Driven Apps) Power Automate Customer Insights Sales Accelerator Strong hands-on development capability including: C# .NET JavaScript Plugins Custom Workflow Activities REST APIs Experience designing enterprise integrations using: Azure Functions Logic Apps Service Bus Azure Data Factory Azure Key Vault Strong stakeholder management ...

operations teams. What You'll Need We are looking for a mix of some or all of the following: Development: Experience with Java, Python, JavaScript, C++, or C#. Cloud & Containers: Cloud-native platforms (AWS, Azure, GCP) and Kubernetes/Helm. CI/CD & IaC: GitLab, Jenkins, Terraform, or Ansible. Data ...

processes Troubleshoot and resolve complex technical issues Required Experience 8+ years' experience working with Microsoft Dynamics 365 Strong development experience with C#, .NET, and JavaScript or TypeScript Proven experience building plugins, workflows, and integrations Experience working across the full delivery lifecycle of Dynamics solutions Hands-on experience with Power Platform ...

Azure, GCP or VCF Release automation — ArgoCD, Flux Observability — Prometheus, Grafana, ELK IAM & secrets management — OAuth/OIDC, Keycloak, Vault Software development — Java, Python, JavaScript, C++ or C# Solid grounding in security principles — CIA, Least Privilege, Zero Trust Networking fundamentals — DNS, TCP/UDP, firewalls, VPNs Our Company Rubicon Consulting ...

portal pages, solutions, and plugins. Security Configuration: Experience designing and implementing complex, role-based security models within Power Apps. Full Stack Development: Proficiency in JavaScript, HTML, and C#, supporting both front-end and back-end development. Integration: Experience integrating with third-party services using APIs. Azure DevOps: Familiar with managing ...

Strong understanding of Salesforce development lifecycle (SDLC), including metadata API, packaging (Unlocked and Managed Packages), and environment strategies. Proficiency in scripting languages such as JavaScript (Node.js), Bash, or PowerShell for pipeline automation. Experience with Git version control, branching strategies, and code merging workflows. Knowledge of DevOps concepts such as continuous ...

Else We're Looking For Strong experience developing cloud-native applications using C#, .NET 10, Azure, and REST APIs Frontend development experience using TypeScript, JavaScript, and NHS Digital Design System components Experience using AI-assisted development tools and agents responsibly within enterprise software delivery Eligibility to obtain BPSS clearance ...

experience developing within Microsoft Dynamics 365 CE/CRM Excellent knowledge of Dataverse and Power Platform technologies Experience developing in C#/.NET and JavaScript Strong understanding of APIs, integrations and data-driven applications Experience working with Azure integration technologies Knowledge of source control and CI/CD processes Ability ...

REST APIs Experience transitioning traditional Microsoft applications to modern architectures. Front-End Experience Strong understanding of modern front-end architecture. Experience with: React TypeScript JavaScript Component-based UI design Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers ...

APIs SOAP Services Strong understanding of API design principles and documentation standards. ASP.NET MVC 5 ASP.NET Web API 2 Front-End Development Angular (v2+) JavaScript Data & Persistence Experience with ORM frameworks such as: Entity Framework NHibernate Dapper Database development and support experience with: Microsoft SQL Server (2008+ ...

APIs SOAP Services Strong understanding of API design principles and documentation standards. ASP.NET MVC 5 ASP.NET Web API 2 Front-End Development Angular (v2+) JavaScript Data & Persistence Experience with ORM frameworks such as: Entity Framework NHibernate Dapper Database development and support experience with: Microsoft SQL Server (2008+ ...

TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). Proven expertise in ServiceNow integrations (REST, SOAP, APIs, MID Servers, etc.). Experience with ServiceNow Scripting (JavaScript, Glide, Flow Designer) and ServiceNow data model. Knowledge of ITIL/ITSM processes and best practices. Experience designing and implementing CMDB and Discovery. Excellent problem ...

design principles and documentation standards. ASP.NET MVC 5 ASP.NET Web API 2 Front-End Development Angular (v2+) IBM MQ/MQ messaging JavaScript Why Join Us? Work on projects that make a difference in the financial sector. Collaborate with a talented team in a vibrant environment. Enjoy a competitive daily ...

days/week in office Duration - Initially 6 months Rate - £550-£650/day Inside IR35 via Umbrella Skills and Experience Required TypeScript or Javascript Next.js or React AWS Terraform Experience providing feedback to engineering teams via code review Exposure to a wide range of languages, frameworks, and cloud technologies ...

hands-on Boomi integration experience, including one or more of Salesforce, NetSuite, or Oracle EBS. Strong working knowledge of SOAP, REST, XML, JSON, and JavaScript/Groovy scripting. Proven ability to deliver in a fast-paced, evolving environment. A creative, pragmatic problem-solver with strong verbal and written communication skills. ...

TSOM, ITOM, ITAM, HRSD, CSM, GRC, SecOps). Proven expertise in ServiceNow integrations (REST, SOAP, APIs, MID Servers, etc.). Experience with ServiceNow scripting (JavaScript, Glide, Flow Designer) and ServiceNow data model. Knowledge of ITIL/ITSM processes and best practices. Experience designing and implementing CMDB and Discovery. Excellent problem ...