1,801 to 1,825 of 2,893 Permanent ECMAScript Jobs

You’ll play a key role in building and maintaining modern, high-performing web applications using C#/.NET at the core. If you have front-end experience with JavaScript frameworks like React or Angular, even better — but our priority is strong backend engineering skills with a passion for quality code and scalable solutions. RESPONSIBILTIES : Develop, enhance, and maintain web … code that follows best practices Take part in code reviews, sprint planning, and agile ceremonies Work across the full stack when needed, particularly on user-facing features using modern JavaScript frameworks (React, Angular, etc.) QUALIFICATIONS : Strong commercial experience with C# and the .NET stack Good knowledge of software development principles, design patterns, and version control (Git) Experience working in Agile … teams, using tools like Jira, DevOps, or similar A collaborative mindset with good communication skills Experience with JavaScript frameworks like React, Angular etc. is a nice-to-have, not a must Familiarity with SQL databases Understanding of CI/CD pipelines, automated testing, or cloud environments is a plus Why Join Us? Be part of a supportive, close-knit team More ❯

are looking for Engineers at both Senior and Principal Level for a hybrid role in Manchester to support us with expansion of AWS services and dependencies working with Java, JavaScript, TypeScript, NodeJS, React and CloudFormation, Lambda andAWS Serverless Technologies. In this role, you'll work on high-impact projects, architecting and delivering scalable, secure, and efficient cloud-based solutions. You … building scalable serverless applications using AWS Lambda, CloudFormation, API Gateway, S3, DynamoDB, and more. Automating infrastructure provisioning using AWS CloudFormation and other IaC tools. Developing and maintaining applications using JavaScript (Node.js, React), TypeScript, and Java. Collaborating with cross-functional teams to deliver end-to-end solutions. Applying best practices for CI/CD, testing, and deployment in a cloud-native … environment. What We're Looking For: Proven experience with AWS core services, especially Lambda and CloudFormation. Strong knowledge of serverless architectures and cloud-native development. Proficiency in JavaScript frameworks such as Node.js and React. Experience with TypeScript and Java in backend or full-stack development roles. Solid understanding of modern development practices including version control (Git), unit testing, and agile More ❯

code and data within various technology initiatives, operating within a DevOps framework. Key Responsibilities: Design and develop solutions that integrate Marklogic with existing enterprise platforms and systems. Develop XQuery, JavaScript, and REST modules on the Marklogic technology stack. Develop entity models and utilize the Marklogic library to support Governance, Risk, and Compliance (GRC) initiatives. Participate in software programming initiatives to … support innovation and enhancement using HTML, CSS, JavaScript, Java, Python, SpringBoot, and Hibernate. Develop and direct software system validation and testing methods using JUnit and Katalon. Create and integrate custom software solutions to leverage automated deployment technologies. Prototype, develop, and deploy solutions within commercial cloud environments leveraging infrastructure platform services. Collaborate closely with team members, Product Owners, and Scrum Masters … oriented architecture applications. Solid understanding of Object-Oriented Design and Design Patterns. Experience implementing the Marklogic Java-client-API within an enterprise application. Strong knowledge of XQuery, FLWOR queries, JavaScript, Marklogic, SPARQL, RDF data, XML Data, triple-stores, and XML Processing. Experience developing Marklogic Entity Models and building Marklogic data hubs. Proficiency with Unix/Shell scripting. In-depth experience More ❯

including scope and work estimation, architecture and design, coding, and unit testing. Primary Responsibilities: Design and develop solutions that integrate Marklogic with existing enterprise platforms and systems Develop XQuery, JavaScript and REST modules on the Marklogic technology stack Develop Entity models Utilize the Marklogic library to support GRC initiatives Participate in software programming initiatives to support innovation and enhancement, using … HTML, CSS, JavaScript, Java, Python, SpringBoot, and Hibernate. Developing and directing software system validation and testing methods using Junit and Katalon Develop and integrate custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within Commercial Cloud Solutions leveraging Infrastructure platform services Coordinate closely with team members, Product Owners and Scrum Masters to ensure User Story … architecture application Good understanding of Object-Oriented Design and Design Patterns Experience with implementing the Marklogic java-client-api within an enterprise application Strong knowledge of XQuery, FLWOR queries, JavaScript, Marklogic, SPARQL, RDF data, XML Data, triple-stores, XML Processing Experience with developer Marklogic Entity Model Experience with building Marklogic data hub Experience with Unix/Shell scripting. In-depth More ❯

Lead Frontend Engineer - Credit Trading, Investment Banking, Agile, UI, React, TypeScript, JavaScript - Permanent, Hybrid, up to £125,000 base Our client, a leading global financial institution, is seeking a highly skilled Lead Frontend Engineer to join its Credit Technology team in London. This role will be responsible for leading critical UI initiatives within a global technology team, driving development projects … Credit Flow business. • Contribute to strategic UI architecture development and infrastructure improvements. • Ensure the trading platform adheres to security and compliance standards. Key Skills & Experience: • Strong proficiency in TypeScript, JavaScript, React, HTML/CSS, Node.js. • Familiarity with backend technologies such as Java 8, Vert.x, Linux. • JIRA, Confluence, Git, NPM, Yarn, Webpack, TeamCity/Jenkins, Artifactory. • Demonstrable experience running a development More ❯

Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech More ❯

Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server Writing unit and integration tests using NUnit Styling website changes in CSS Developing JavaScript code using frameworks such as Vue Attending scrum meetings and briefings with project owners and peers Writing SQL scripts to modify database schema in SQL Server 2014 Required Recent legacy … essential) ASP.NET 4.6+ MVC 5 C# 6 including advanced language features e.g., generics, lambdas, delegates Design Patterns and SOLID Principles Entity Framework 6+ SQL Server 2014+ TDD/NUnit Javascript/JQuery/AJAX HTML5/CSS3 Desirable ASP.NET Core Azure Service Bus Entity Framework Core Vue Agile methodologies/Scrum Automated browser testing/SpecFlow/Selenium SignalR ECMAScript6 … .com/privacy) Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech More ❯

computer science, Information Technology, or a related field or relevant experience • Proficiency in Dynamics 365 and Power Platform (CRM, Customer Services, Sales and Marketing) • Strong knowledge of C# .NET, JavaScript, HTML, and SQL • Familiarity with Azure Services and working with and within DevOps practices • Understanding and managing enterprise size Dataverse instances • Expertise in tools and usage of XRM Toolbox • Excellent … Additional Key Experience Focus Points: • Dynamics 365 Omnichannel setup/configuration • Co-Pilot Studio voice (IVR flows) • Customisation to point 1 & 2 via code • Dynamics Marketing and Customer Insights • JavaScript security Notes: To be successfully appointed in this role, it is a requirement to hold or to be able to obtain Security Check (SC) clearance and maintain this. Location: London More ❯

computer science, Information Technology, or a related field or relevant experience • Proficiency in Dynamics 365 and Power Platform (CRM, Customer Services, Sales and Marketing) • Strong knowledge of C# .NET, JavaScript, HTML, and SQL • Familiarity with Azure Services and working with and within DevOps practices • Understanding and managing enterprise size Dataverse instances • Expertise in tools and usage of XRM Toolbox • Excellent … Additional Key Experience Focus Points: • Dynamics 365 Omnichannel setup/configuration • Co-Pilot Studio voice (IVR flows) • Customisation to point 1 & 2 via code • Dynamics Marketing and Customer Insights • JavaScript security Notes: To be successfully appointed in this role, it is a requirement to hold or to be able to obtain Security Check (SC) clearance and maintain this. Location: London More ❯

systems with Caribou Thunder. A Day in the Life - What You'll Do • Design, develop, and maintain Java-based web applications, integrating front-end technologies like HTML, CSS, and JavaScript • Connect secure application interfaces with DoD infrastructure and data systems • Manage backend databases with a focus on performance, security, and data integrity • Implement secure coding practices to meet strict DoD … systems • Active Interim Top-Secret Security Clearance • Agile-minded, security-focused, collaborative, and passionate about building scalable, secure applications for defense missions ️ Core Skills Languages & Front-End Technologies: Java, JavaScript, HTML, CSS DevOps & CI/CD Tools: GitLab CI/CD, GitLab Runners, Nexus Repository, WebLogic deployment, Agile Scrum Security & Compliance: Fortify, SonarQube, secure coding best practices, DoD software development … Thunder and protect what matters. Suggested Hidden Tag Variations: Full Stack Java Developer - Clearance Required DoD Software Engineer Java Web Developer - Mid-Level Kubernetes DevOps Engineer Secure Web Developer - JavaScript CI/CD Java Developer Agile Full Stack Developer More ❯

Looking For Proven experience in a Lead or Senior Developer role within agile software teams. Strong background in .NET (preferably .NET 8) and AWS Cloud technologies. Proficiency with React , JavaScript/TypeScript , and modern front-end practices. Understanding of event-driven architecture , serverless computing , and Terraform . Strong communication and collaboration skillsyoull be a bridge between tech and business. Passion … for mentoring and developing other engineers. Our Stack Cloud: AWS Languages: C# (.NET 8), JavaScript, TypeScript Frontend: React Infrastructure: Terraform, GitHub Actions Databases: DynamoDB Messaging: SNS/SQS, EventBridge Testing: Playwright, K6 Whats in It for You? Join a forward-thinking, cloud-native tech team building solutions at scale. Shape products used across Europe , impacting thousands of users. Hybrid working More ❯

Looking For Proven experience in a Lead or Senior Developer role within agile software teams. Strong background in .NET (preferably .NET 8) and AWS Cloud technologies. Proficiency with React , JavaScript/TypeScript , and modern front-end practices. Understanding of event-driven architecture , serverless computing , and Terraform . Strong communication and collaboration skills—you’ll be a bridge between tech and … business. Passion for mentoring and developing other engineers. Our Stack Cloud: AWS Languages: C# (.NET 8), JavaScript, TypeScript Frontend: React Infrastructure: Terraform, GitHub Actions Databases: DynamoDB Messaging: SNS/SQS, EventBridge Testing: Playwright, K6 What’s in It for You? Join a forward-thinking, cloud-native tech team building solutions at scale. Shape products used across Europe , impacting thousands of More ❯

Graduate .NET Developer - Investment Bank - London (Tech stack: Graduate .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, Graduate .NET Developer) Our client is the world's most respected banking institution. Their story dates back to the 1890s and today they operate from over 10,000 offices in 100 countries. …/ASP.NET MVC, C# or C#.NET winforms) and Azure SQL. Our client offers training in: .NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. This is a truly amazing opportunity to work for a prestigious banking brand that will do wonders for your CV. They invest heavily in training and More ❯

work from our office in Nottinghamshire if you prefer a hybrid or in-person setup. What You'll Be Doing Designing and building scalable, high-performance systems using PHP, JavaScript, HTML, and CSS Contributing to the development and integration of AI-driven features and systems Working closely with DevOps, product, and UI/UX teams in a collaborative environment Participating … code reviews, sprint planning, and architectural discussions Writing clean, maintainable code with a focus on performance and security What We're Looking For Solid experience with PHP and modern JavaScript (ES6+) Strong front-end development skills using HTML, CSS , and responsive design principles Familiarity with AI systems (e.g., integration of ML APIs, AI-powered features, automation tools) Experience working in More ❯

Full Stack Developer - C# .Net/JavaScript/SQL - Cardiff - Hybrid - £60,000 The Role A innovative tech focused software house is looking for a talented Full Sack Developer to join their growing development team. You will also have the opportunity to work on new and existing projects based in Amazon Web Service as the company continues to scale into … customer facing platform features and improvements as well as internal systems, educational content tools and 3rd party integrations Role requirements At least 4 years' commercial experience in C# TypeScript, JavaScript Postgres Desirables Angular, React or Vue Azure DevOps & Git AWS SQL Server Familiarity with responsive layout and accessible design Unit/Functional Testing The Company The company is the tech More ❯

Full Stack Developer - C# .Net/JavaScript/SQL - Bristol - Fully remote - £60,000 The Role A dedicated online educational resource is looking for a talented Full Sack Developer to join their growing development team. You will also have the opportunity to work on new and existing projects based in Amazon Web Service as the company continues to scale into … customer facing platform features and improvements as well as internal systems, educational content tools and 3rd party integrations Role requirements At least 4 years' commercial experience in C# TypeScript, JavaScript Postgres Desirables Angular, React or Vue Azure DevOps & Git AWS SQL Server Familiarity with responsive layout and accessible design Unit/Functional Testing The Company The company is an online More ❯

lead frontend development efforts, architect scalable solutions, and ensure the platform delivers seamless, accessible experiences across devices. Key Responsibilities Architect and build dynamic, responsive interfaces using React and modern JavaScript frameworks Partner with design and product teams to bring intuitive, user-friendly features to life Set standards for performance, accessibility, and maintainability across the frontend codebase Guide technical decisions and … team culture Continuously improve development workflows and advocate for best practices Skills A sound background in frontend development, with strong proficiency in React and TypeScript Expertise in HTML, CSS, JavaScript, and API integration Proven experience designing scalable component-based systems Familiarity with agile workflows, Git, CI/CD, and DevOps practices (Azure DevOps is a plus) A user-focused mindset More ❯

s not essential to have knowledge of everything or the specific tooling listed: Highly experienced and good working knowledge across the following technologies: Languages : .NET Core, C#, NodeJS/JavaScript, Development Environments: Visual Studio, SQL Server management studio, Oracle Developer Databases: MongoDB, ElasticSearch, Oracle, SQL Server Frameworks/Libraries/Tools - solid experience across the following: Deployment: Containerisation tools such … as; Docker, Ansible or Kubernetes Understanding of Azure or Cloud Services Communication: Messaging (RabbitMQ), REST Web Services Workflow: WF GUI: JavaScript Office Automation: VSTO, Aspose.Words, Aspose.Excel Testing/CI : XUnit, MOQ, SpecFlow, TeamCity Deployment: Octopus/Azure DevOps Methodologies: experience of working on Agile projects Good understanding of SOA/Microservices based architectures Good understanding of OOP, SOLID principles and More ❯

with focus on performance and maintainability. Designing and optimising MySQL database schemas and queries to support postcode/address-based product availability logic. Building responsive front-end interfaces using JavaScript, CSS, and SASS that deliver excellent user experience across all devices. Implementing and maintaining affiliate tracking systems that accurately attribute conversions and revenue. Ensuring platform security, data protection compliance, and … Proven experience in technical leadership, including mentoring developers, guiding architectural decisions, and driving the delivery of complex software projects. MySQL database design, optimisation, and administration experience Frontend development using JavaScript, CSS, and SASS with high degree of accuracy AWS services experience specifically with EC2, RDS, and Docker containerisation Source control with Git and collaborative development workflows Understanding of web security … practices for content-driven platforms Experience working within Agile product teams Technical Skills Object-oriented PHP with Symfony or comparable MVC framework Responsive HTML & CSS with modern web standards JavaScript using modern practices and frameworks MySQL database design and query optimisation AWS infrastructure administration and monitoring Docker containerisation and deployment Version control with Git What We Offer Remote Working Allowance More ❯

including version and platform upgrades. Develop in an AWS cloud environment using cutting edge technology. Responsible for the development of an application that is uses Java (JEE Development) Angular, JavaScript/Application Development, PostgreSQL, Sprintboot and Tomcat. This role is approved for Hybrid support, Flexible for occasional telework - must be local to work location QUALIFICATIONS Required Qualifications Active/Current … testing, maintenance, quality assurance, troubleshooting and/or upgrading of software systems. At least Two (2) or more years of experience in the following skillset: Java (JEE Development) Strong JavaScript/Ajax Application Development Angular version 2 or above Spring Boot, Spring Data JPA and Spring Security Tomcat PostgreSQL GIT LAB experience Experience in Test Driven Development JUNIT experience Desired More ❯

Develop, prototype, and deploy solutions within Commercial Cloud Solutions using Infrastructure platform services. Participate in software programming initiatives to support innovation and enhancement, utilizing technologies such as Python, Java, JavaScript, SpringBoot, Hibernate, and Angular. Independently demonstrate proposed solutions to customers, then iterate based on feedback. Collaborate closely with team members, Product Owners, and Scrum Masters to ensure alignment and implementation … Azure). Demonstrated ability to independently demonstrate developed solutions and update based on customer feedback. Proficiency in common Agile practices, service-oriented environments, and development practices. Expertise in Java, JavaScript, and Angular. Extensive experience with the software development lifecycle and delivering within DevOps toolsets/practices. Direct experience using software testing performance tools like Junit. Experience working in an Agile More ❯

and more securely in dynamic environments. Responsibilities Job Description: Iron EagleX is looking for a Software Engineer-Hybrid. Job Duties Include (but not limited to): Serve as full stack JavaScript developer building a powerful integration platform for managing and orchestrating integration with dozens of other applications. Tech stack: .NET C#, React, Python, Fast API, PostgreSQL. Play a key role in … applications Experience with building and consuming REST APIs Experience with asynchronous programming in promises, generators, or callbacks Experience with unit testing and integration testing of server- and client-side JavaScript Sense of ownership and pride in your performance and its impact on the customer's success Critical thinker and problem-solving skills Team player Good time-management skills Interpersonal and More ❯

application. Address user issues, fix bugs, and improve system performance. Adapt to a fast-paced, agile work environment. Utilize a tech stack that includes AWS, C2S, React, Angular, Python, JavaScript, TypeScript, and Docker. Manage and update Docker containers to ensure efficient application deployment and scaling, as well as streamline the development process. Engage in Agile methodologies, participate in sprint planning …/engineering in programs and contracts of similar scope, type, and complexity. Seven (7) years of software development experience may be substituted in lieu of a degree. Experience with JavaScript Framework (Angular, Vue, React) Full Stack Development experience Willingness to learn modern technologies Working understanding on SQL and/or NoSQL databases Required Clearance: Candidate must have a TS/ More ❯

applications using PHP, Laravel, and WordPress. Collaborate with the senior applications developer, directors, and clients to define requirements and implement solutions. Perform front-end development using HTML, CSS, and JavaScript to create user-friendly interfaces. Administer and extend WordPress sites by implementing new themes, plugins, and custom functionality. Optimize and ensure web applications meet security, performance, and accessibility standards. Participate … control and collaborative development workflows. Experience demonstrating problem-solving skills and managing multiple projects simultaneously. PREFERRED QUALIFICATIONS Experience working in an Agile development environment. Experience with modern front-end JavaScript frameworks (e.g., Vue, React, or Angular). Experience with RESTful APIs and integrating third-party services. Knowledge of MySQL or other relational databases. Experience with web accessibility standards and best More ❯

with relevant experience and qualifications. At least 3 years' experience in systems design and the implementation of software. Strong proficiency in modern front-end technologies, including Angular, HTML, CSS, JavaScript, and jQuery, along with back-end skills in Java/VB/PHP and MySQL. Familiarity with AWS Cloud is also required. Experience with CodeIgniter, Bootstrap, and MVC architecture Experience … with relevant experience and qualifications. At least 3 years' experience in systems design and the implementation of software. Strong proficiency in modern front-end technologies, including Angular, HTML, CSS, JavaScript, and jQuery, along with back-end skills in Java/VB/PHP and MySQL. Familiarity with AWS Cloud is also required. Experience with CodeIgniter, Bootstrap, and MVC architecture Experience More ❯