ECMAScript Job Vacancies

651 to 675 of 3,049 ECMAScript Jobs

Software Development Engineer in Test (SDET)

London, South East, England, United Kingdom
Ncounter
exploratory testing and champion quality throughout the SDLC Support secure deployment and testing practices in containerised environments Tech You’ll Work With: Automation tools: Playwright, Cypress, JUnit, Jasmine Languages: JavaScript/TypeScript, Java or Kotlin DevOps & Infra: Docker, Kubernetes, GitLab CI, Bitbucket Testing tools: Postman, browser dev tools, SAST/DAST integrations Environments: Unix and Windows What You Bring: Hands More ❯
Employment Type: Full-Time
Salary: £65,000 - £80,000 per annum, Negotiable, OTE
Posted:

C# .Net Software Developer - Lead / Senior

Milton Keynes, Buckinghamshire, South East, United Kingdom
Hireful
But, in the main, if you have solid experience in .Net (C#) at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+) - MySQL - GitHub actions, Azure - Playwright, Docker - Any exposure to AI-assisted development tolls such as Cursor, V0, GitHub copilot, etc would be ace. Please More ❯
Employment Type: Permanent
Salary: £65,000
Posted:

Senior Software Developer - Trading systems

City of London, London, United Kingdom
Spectrum IT Recruitment
level aptitude for technology Education to at least a BSc level or higher in Computer Science or Mathematics from a Russell Group University or equivalent. Desirable skills: HTML5, CSS, JavaScript Multi-threaded application development Understanding of Windows technologies WPF If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson on (phone number removed More ❯
Employment Type: Permanent
Salary: £90000 - £120000/annum
Posted:

Staff Frontend Engineer

London, South East, England, United Kingdom
Harnham - Data & Analytics Recruitment
maintainable solutions Collaborate closely with senior leadership on high-priority projects Requirements: Essential: Expert-level experience in full-stack development (Mainly focused on the frontend) Strong knowledge of modern JavaScript frameworks Full Stack Experience (Using Node.js, Python or C#) Track record of architecting and delivering complex systems Ability to work autonomously in a fast-moving environment Background in enterprise SaaS More ❯
Employment Type: Full-Time
Salary: £100,000 - £115,000 per annum, Inc benefits
Posted:

C# .Net Software Developer - Lead / Senior

Banbury, Oxfordshire, South East, United Kingdom
Hybrid / WFH Options
Hireful
But, in the main, if you have solid experience in .Net (C#) at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v18+) - MySQL - GitHub actions, Azure - Playwright, Docker - Any exposure to AI-assisted development tools such as Cursor, V0, GitHub copilot, etc would be ace. Please More ❯
Employment Type: Permanent
Salary: £70,000
Posted:

JAVA Front End Developer

New York, United States
Hybrid / WFH Options
Everest Consulting Group
Experience with enterprise financial applications Understanding of PCI-DSS and regulatory compliance Knowledge of secure data handling practices Familiarity with microservices architecture Core Technologies: Proficiency in HTML, CSS, and JavaScript Frameworks: Strong experience with React, Angular, or Vue.js Form Development: Experience with form libraries and validation UI Components: Data grids, tables, and reporting interfaces Integration: REST API consumption Work-shift More ❯
Employment Type: Any
Salary: USD Annual
Posted:

Senior Front End Developer

Birmingham, West Midlands, England, United Kingdom
Hybrid / WFH Options
Reed
applications for speed, scalability, and cross-browser compatibility. What We’re Looking For: Proven experience building production-grade front-end applications with React.js and Next.js . Strong understanding of JavaScript , TypeScript , and modern front-end tooling (e.g., Vite, Webpack). Experience with Tailwind CSS or other utility-first CSS frameworks. Familiarity with headless CMSs , API-first development, and cloud-native More ❯
Employment Type: Full-Time
Salary: £60,000 - £72,000 per annum, Negotiable
Posted:

Senior Software Developer

Oxford, Oxfordshire, England, United Kingdom
Hybrid / WFH Options
Oscar Technology
with clean, maintainable code and strong engineering principles Mentor junior developers and contribute to improving team processes Essential Skills: .NET Framework and .NET 6, ASP.NET Core/MVC C# JavaScript frameworks: Angular, Vue.js, or React MySQL Git or similar source control tools Experience with logging/monitoring tools: Elasticsearch, Rollbar, Sentry, Jira Unit testing frameworks: xUnit, NUnit, Jest, or Jasmine More ❯
Employment Type: Full-Time
Salary: £65,000 - £85,000 per annum
Posted:

Senior Developer

Chester, Cheshire, North West, United Kingdom
Hybrid / WFH Options
Searchability (UK) Ltd
148. By applying, you consent to us processing your details for this vacancy only. We look forward to hearing from you! Key Skills: PHP, Symfony, MySQL, REST APIs, Microservices, JavaScript, React, Java, AWS, Docker, CI/CD, Git, Secure Coding, Test-Driven Development, Distributed Systems, Infrastructure as Code (CDK/Terraform), Linux/Bash More ❯
Employment Type: Permanent, Work From Home
Salary: £70,000
Posted:

Java Software Engineer

Hucclecote, Gloucestershire, United Kingdom
Hybrid / WFH Options
Omega Resource Group
CI/CD pipelines (GitLab) Contributing across the software development lifecycle from requirements to deployment Tech Stack Includes: Java, Python, Linux, Git, JUnit, GitLab CI/CD, Oracle, MongoDB, JavaScript/TypeScript, React, Apache NiFi, Elasticsearch, Kibana, AWS, Hibernate, Atlassian Suite What s on Offer: Hybrid working and flexible schedules (4xFlex) Ongoing training and career development Exciting projects within the More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Fullstack Software Engineer

Guildford, Surrey, United Kingdom
Hybrid / WFH Options
BAE Systems (New)
technical authority, developing applications with React, TypeScript, Kotlin, and engaging with key stakeholders. Skills & Experience Essential Experience developing full-stack applications Proficiency with modern web frameworks in TypeScript/JavaScript Experience with OOP languages such as Java, Kotlin, C# Designing and implementing SQL databases Ability to work in a dynamic environment with customer interaction Desirable Willingness to travel occasionally to More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Performance & Automation Test Engineer Java Tech for Good

Edinburgh, Midlothian, Scotland, United Kingdom
Cathcart Technology
of users across the UK. Work in a forward thinking engineering culture that embraces automation, observability and modern dev practices. Tech Stack You'll Work With Core: Java (essential), JavaScript or TypeScript (bonus) Performance Testing: Custom frameworks, traffic analysis, monitoring tools Testing Tools: Playwright, Cypress or similar (performance testing more important for this role) Infrastructure: APIs, databases, CICD pipelines Cloud More ❯
Employment Type: Full-Time
Salary: £70,000 per annum
Posted:

Software engineer

London, United Kingdom
Computer Futures / SThree Group
Proven experience as a Senior Software Engineer or similar role. Strong expertise in AWS services, particularly Amazon Lex and other AI/ML services. Proficiency in TypeScript and modern JavaScript frameworks. Solid understanding of DevOps methodologies and tools (e.g., CI/CD, Serverless, Monitoring). Experience with contact centre technologies and integrations. Excellent problem-solving skills and the ability to More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineers

Gloucester, Gloucestershire, South West, United Kingdom
Forward Role
/CD) pipelines Demo your work to internal and external stakeholders What You Bring: Strong hands-on experience with at lease on of the following languages C++, GoLang, Java, JavaScript, .NET, Node, Python or Rust Understanding of Cloud-based architectures (AWS, GCP or Azure) Business skills and commercial awareness A willingness to further your own knowledge, skills and technology. Security More ❯
Employment Type: Permanent
Salary: £90,000
Posted:

Cleared .NET with Security Clearance

Tampa, Florida, United States
Apex Systems
Perform critical troubleshooting of applications. Perform schedule operations and maintenance of web servers, troubleshoot service desk tickets and follow-up escalations necessary. Requirements: • Excellent in C# (.NET 6.0+) and JavaScript for creating web applications and web services. • Possess extensive web development experience utilizing .NET, MVC, JSON, JQuery, HTML5, and CSS3 to create seamless user experiences. • Demonstrate advanced knowledge and experience More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Big Data Consulting Engineer with Security Clearance

Mc Lean, Virginia, United States
Capitol Consulting Networks, Inc
functional organization • Onsite expectations to be 3 days/week Nice to Haves: • Experience working in a consultative capacity in a Professional Services Organization • Knowledgeable in J2EE (Java EE), JavaScript, Docker, Spring, Kubernetes • Hands-on development experience using Java/J2EE, Middleware, Design Patterns, JUnit, and database technologies • Experience with Cloud technologies and environments (AWS, Azure) • Experience in Visualization Tools More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Big Data Consulting Engineer - MD with Security Clearance

Maryland, United States
Capitol Consulting Networks, Inc
functional organization • Onsite expectations to be 3 days/week Nice to Haves: • Experience working in a consultative capacity in a Professional Services Organization • Knowledgeable in J2EE (Java EE), JavaScript, Docker, Spring, Kubernetes • Hands-on development experience using Java/J2EE, Middleware, Design Patterns, JUnit, and database technologies • Experience with Cloud technologies and environments (AWS, Azure) • Experience in Visualization Tools More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Web Developer with Security Clearance

Bethesda, Maryland, United States
Cohere Technology Group
SSRS Report Designer Knowledge of the Information Technology Infrastructure Library (ITIL) Framework, high availability, and enterprise infrastructure. Programming languages and scripting methods including: Python, PHP, Java, Bash, HTML, CSS, JavaScript, and jQuery Experience creating secure applications systems utilizing IC or DoD security guidelines Experience utilizing DEVOPs tools such as a version control system (Github preferred, Subversion OK) Software testing, documentation More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Java Developer Fullstack

Brussel, Belgium
SII Group Belgium
Familiar with Agile methodology such as Scrum; TDD Good knowledge of Java Spring MVC Experienced in JPA/Hibernate, Maven, GIT, SVN Jenkins Experience with HTML5, CSS frameworks (Bootstrap, ), Javascript frameworks (JQuery, Angular JS, React JS ) is an added value. A broad interest in developing web sites and web applications General best practices and design practices Fluent in English, ideally More ❯
Employment Type: Permanent
Salary: EUR Annual
Posted:

Software Engineer

Edinburgh, City of Edinburgh, United Kingdom
Hybrid / WFH Options
Cathcart Technology
got a great L&D environment. You'll ideally have experience with most of the following; ** Modern .Net (.Net Core, ASP.Net MVC) ** Databases (SQL Server or Entity Framework) ** Modern JavaScript Libraries (ReactJS, Angular or VueJS) ** Working with an Agile environment Experience with the following is highly desirable; ** Microsoft Azure ** Microservices ** Working in a product environment The company have a great More ❯
Employment Type: Permanent
Salary: £30000 - £43000/annum
Posted:

Software Engineer

Edinburgh, Midlothian, Scotland, United Kingdom
Hybrid / WFH Options
Cathcart Technology
got a great L&D environment. You'll ideally have experience with most of the following; ** Modern .Net (.Net Core, ASP.Net MVC) ** Databases (SQL Server or Entity Framework) ** Modern JavaScript Libraries (ReactJS, Angular or VueJS) ** Working with an Agile environment Experience with the following is highly desirable; ** Microsoft Azure ** Microservices ** Working in a product environment The company have a great More ❯
Employment Type: Permanent, Work From Home
Salary: £40,000
Posted:

Software Engineer (SWE1) - Columbia, MD 60% Telework Active T with Security Clearance

Columbia, Maryland, United States
Hybrid / WFH Options
Argo Recruiting
Required Qualifications: U.S. Citizenship and active TS/SCI security clearance Bachelor's degree in Computer Science or related field 7+ years of software development experience Proficiency with VueJS, JavaScript, HTML/CSS Experience with GitLab, GitOps, and Agile DevSecOps workflows Familiarity with API development and RESTful services Hands-on experience with Linux/Unix environments Experience with containerization technologies More ❯
Employment Type: Permanent
Salary: USD 78 Hourly
Posted:

Software Engineer

Hounslow, England, United Kingdom
Scalian
Proficient in C++11 or later, with a strong understanding of memory management, concurrency, and object-oriented design . Hands-on experience with AngularJS and front-end development ( HTML, CSS, JavaScript ). Familiarity with REST APIs , JSON , and web service integration . Experience working in software maintenance/support roles with bug fixing and system enhancements. Strong debugging and problem-solving More ❯
Posted:

Software Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Braundton Consulting Limited
off or regular reporting and data processing activities. - Contribute to our development and project delivery processes. Person Specification Knowledge, skills and qualifications - C# - MS SQL Server - HTML, CSS and JavaScript - One or more of the following: ASP.NET MVC WPF SSDT REST APIs Azure services, including Azure SQL, App Services, and Message Queues Mobile app development CI/CD Business Skills More ❯
Employment Type: Full-Time
Salary: £45,000 - £50,000 per annum
Posted:

DevOps Engineer

London, United Kingdom
Hybrid / WFH Options
Stott & May Professional Search Limited
using Azure DevOps and GitHub. Skilled in Infrastructure as Code using Pulumi, ARM, or Terraform, and proficiency in PowerShell, YAML, Python, or TypeScript. Knowledge of frontend technologies (HTML, CSS, JavaScript) and experience supporting web applications. Experience working with synthetic and application monitoring platforms such as Dynatrace and Catchpoint. Understanding of .NET applications and experience making small code changes when required. More ❯
Employment Type: Permanent
Salary: £70,000
Posted: