Permanent ECMAScript Job Vacancies

376 to 400 of 2,383 Permanent ECMAScript Jobs

Senior Software Engineer

Chester, Cheshire, England, United Kingdom
Interquest
Work with the wider business to deliver solutions at pace Champion new technologies across the group Participate in Scrum ceremonies The Ideal Candidate: Extensive experience with frontend technologies (React, JavaScript, Typescript, Redux, HTML5 and CSS3) Experience with testing frameworks such as Jest, React Testing Library, Cypress and Playwright Exposure to CI/CD, Github, Docker, Jenkins and Grafana (a nice More ❯
Employment Type: Full-Time
Salary: £60,000 - £80,000 per annum
Posted:

Backend Software Developer with C# and Umbraco

remote
Hybrid / WFH Options
Nexus Jobs Limited
and identifying ways to automate processes working alongside the business lead Implementing automated regression testing for the software developed Skills and Experience: Excellent working knowledge of ASP.NET, C#, HTML, JavaScript, jQuery, React Framework, MS SQL Server, Mongo DB, Elasticsearch Understanding of SOLID development principles Worked previously on projects using the Umbraco CMS Continuous Delivery skills, tools and techniques (e.g. Git More ❯
Employment Type: Permanent
Posted:

Platform Engineer

Manchester, North West, United Kingdom
Hybrid / WFH Options
Anson Mccade
control, static code analysis, and software design patterns Support cloud deployment, containerization, and infrastructure automation as part of continuous improvement efforts Skills & Experience: Proficiency in programming languages such as JavaScript, Java, .Net, or Python Experience with version control systems like Git and CI/CD tools including Jenkins, Bamboo, or TeamCity Familiarity with automated testing frameworks and static code analysis More ❯
Employment Type: Permanent, Work From Home
Posted:

Golang Developer - Remote - to £60k+excellent benefits

Norwich, Norfolk, England, United Kingdom
Hybrid / WFH Options
Ascent Sourcing Ltd
ways to improve system performance, stability, and security Support internal innovation, including integration with LLMs and emerging AI capabilities Requirements Demonstrated experience in full-stack software development Proficient in JavaScript/TypeScript with experience in Node.js and React Expert in Go Comfortable working with containerised applications and Kubernetes Experience with cloud infrastructure (AWS or similar) Familiarity with DevOps tooling and More ❯
Employment Type: Full-Time
Salary: £50,000 - £60,000 per annum
Posted:

Power Platform Developer

London, United Kingdom
Hybrid / WFH Options
Nigel Frank International
Strong problem-solving skills and attention to detail. Excellent communication skills with the ability to work across technical and business teams. Competence in Microsoft tools (Excel, SharePoint); experience with JavaScript, C#, HTML, or SQL beneficial. Familiarity with agile methodologies and structured delivery. For senior roles: proven track record in leading projects, mentoring, and delivering scalable enterprise solutions. What We're More ❯
Employment Type: Permanent
Salary: £49000 - £61000/annum
Posted:

AI Software Engineer with Security Clearance

Fairfax, Virginia, United States
Hybrid / WFH Options
Anonymous Employer
object-oriented design and programming, as well as knowledge of design patterns and algorithmic analysis. Programming Languages: Proficiency in Python is a must, experience with other languages such as JavaScript, TypeScript, or C++ is useful but not critical. GenAI: Experience building applications leveraging LLMs as a core component Work Environment: Experience working in a small, remote team environment is preferred. More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Power Platform Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Nigel Frank International
Strong problem-solving skills and attention to detail. Excellent communication skills with the ability to work across technical and business teams. Competence in Microsoft tools (Excel, SharePoint); experience with JavaScript, C#, HTML, or SQL beneficial. Familiarity with agile methodologies and structured delivery. For senior roles: proven track record in leading projects, mentoring, and delivering scalable enterprise solutions. What We're More ❯
Employment Type: Full-Time
Salary: £49,000 - £61,000 per annum
Posted:

Software Developer (.NET)

Shoreditch, London, United Kingdom
Hybrid / WFH Options
Yolk Recruitment
product roadmap and future feature development. The skills you'll need Strong technical knowledge in .NET Framework, .NET Core, ASP.NET MVC/Web Forms, HTML/CSS/SASS, JavaScript/TypeScript, RESTful APIs, SQL Server, and Entity Framework. Experience with scalable applications, design patterns, and asynchronous programming (e.g. queuing, caching, logging). Familiarity with Windows services, DevOps, Azure, CI More ❯
Employment Type: Permanent
Salary: £50000 - £60000/annum + benefits
Posted:

Software Architect

United Kingdom
Hybrid / WFH Options
Fruition Group
least 2 years in an architectural or leadership role. Strong understanding of architectural patterns (e.g., microservices, layered, serverless). Proficiency in programming languages such as Java, C#, Python, or JavaScript/TypeScript. Hands-on experience with cloud platforms (in particular Azure) Excellent communication and stakeholder engagement skills. Desirable: Experience in enterprise application integration (EAI). Knowledge of data modelling and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Leeds, West Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
Fruition Group
least 2 years in an architectural or leadership role. Strong understanding of architectural patterns (e.g., microservices, layered, serverless). Proficiency in programming languages such as Java, C#, Python, or JavaScript/TypeScript. Hands-on experience with cloud platforms (in particular Azure) Excellent communication and stakeholder engagement skills. Desirable: Experience in enterprise application integration (EAI). Knowledge of data modelling and More ❯
Employment Type: Permanent, Work From Home
Posted:

Application Architect

Leeds, West Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
Fruition Group
least 2 years in an architectural or leadership role. Strong understanding of architectural patterns (e.g., microservices, layered, serverless). Proficiency in programming languages such as Java, C#, Python, or JavaScript/TypeScript. Hands-on experience with cloud platforms (in particular Azure) Excellent communication and stakeholder engagement skills. Desirable: Experience in enterprise application integration (EAI). Knowledge of data modelling and More ❯
Employment Type: Permanent, Work From Home
Posted:

Software Developer .NET

East London, London, England, United Kingdom
Hybrid / WFH Options
Yolk Recruitment Ltd
product roadmap and future feature development. The skills you'll need Strong technical knowledge in .NET Framework, .NET Core, ASP.NET MVC/Web Forms, HTML/CSS/SASS, JavaScript/TypeScript, RESTful APIs, SQL Server, and Entity Framework. Experience with scalable applications, design patterns, and asynchronous programming (e.g. queuing, caching, logging). Familiarity with Windows services, DevOps, Azure, CI More ❯
Employment Type: Full-Time
Salary: £50,000 - £60,000 per annum
Posted:

Software Architect

Bradford, Yorkshire, United Kingdom
Hybrid / WFH Options
Fruition Group
least 2 years in an architectural or leadership role. Strong understanding of architectural patterns (e.g., microservices, layered, serverless). Proficiency in programming languages such as Java, C#, Python, or JavaScript/TypeScript. Hands-on experience with cloud platforms (in particular Azure) Excellent communication and stakeholder engagement skills. Desirable: Experience in enterprise application integration (EAI). Knowledge of data modelling and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

UI/UX Frontend Software Developer with Security Clearance

Herndon, Virginia, United States
Synertex LLC
z2bz0 years of proven UI/UX experience. Proven work experience as a Front-end Developer. Proficiency with Vue.js and experience with one or more: Angular, Python, Typescript, JavaScript, jQuery, CSS, HTML. Experience with Docker, GitHub, GitLab. Strong UI/UX design and development skills supported by a portfolio. Excellent visual design skills with sensitivity to user-system interaction. Ability More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Developer PHP

Newton Abbot, Devon, England, United Kingdom
Hybrid / WFH Options
Reed
writing automated tests (PHP Unit/PEST) Working knowledge of CI/CD pipelines (GitLab CI, GitHub Actions, etc.) Experience with Docker and containerised development environments Exposure to modern JavaScript frameworks (Vue.js, React, or similar) Benefits: A supportive, close-knit development team with a culture of mentorship and learning Opportunities to lead technically and shape the architecture of new solutions More ❯
Employment Type: Full-Time
Salary: £50,000 - £65,000 per annum, Inc benefits
Posted:

Sr Associate SDET job with shark

Montvale, New Jersey, United States
Sharkanalytics pvt ltd
from an accredited college/university. Strong background in development with 5 years of hands on experience developing, testing, performance tuning of large scale systems built with C#, .NET, Javascript frameworks, SQL Server, scripting languages such as PowerShell, Python, etc. Experience with Selenium, JMeter, VSTS or any other automation & performance testing tools is required. Experience with agile engineering practices and More ❯
Employment Type: Any
Salary: USD Annual
Posted:

Lead R Data Scientist - Sustainability

Fully Remote, St James's Square, Greater London, United Kingdom
Hybrid / WFH Options
Morris Sinclair Recruitment
communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯
Employment Type: Permanent
Salary: £70000 - £120000/annum
Posted:

Mid-level Software Engineer PHP/Laravel

Newton Abbot, Devon, England, United Kingdom
Hybrid / WFH Options
Reed
writing automated tests (PHP Unit/PEST) Working knowledge of CI/CD pipelines (GitLab CI, GitHub Actions, etc.) Experience with Docker and containerised development environments Exposure to modern JavaScript frameworks (Vue.js, React, or similar) Benefits: A supportive, close-knit development team with a culture of mentorship and learning Opportunities to lead technically and shape the architecture of new solutions More ❯
Employment Type: Full-Time
Salary: £38,000 - £48,000 per annum, Inc benefits
Posted:

Lead Data Scientist

London Area, United Kingdom
Mentmore
technical audiences Ideal Candidate Profile Technical Experience 5–7 years of professional experience across software engineering, DevOps, or applied data science Strong programming skills in Python and familiarity with JavaScript/TypeScript Working knowledge of React (not a frontend role, but an understanding of the stack is important) Hands-on experience with containerisation (Docker) and cloud deployment (Terraform, microservices, Azure More ❯
Posted:

Lead Data Scientist

City of London, London, United Kingdom
Mentmore
technical audiences Ideal Candidate Profile Technical Experience 5–7 years of professional experience across software engineering, DevOps, or applied data science Strong programming skills in Python and familiarity with JavaScript/TypeScript Working knowledge of React (not a frontend role, but an understanding of the stack is important) Hands-on experience with containerisation (Docker) and cloud deployment (Terraform, microservices, Azure More ❯
Posted:

Lead R Data Scientist - Sustainability

London, South East, England, United Kingdom
Hybrid / WFH Options
MORRIS SINCLAIR RECRUITMENT LTD
communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯
Employment Type: Full-Time
Salary: £60,000 - £120,000 per annum
Posted:

Front-End Senior Software Engineer - UK

London, United Kingdom
SynMax
degree in Computer Science, Engineering, or a related field (or equivalent experience) 7+ years in Software Development 5+ years in Frontend or Web Developmentwith a strong focus on modern JavaScript frameworks (React, Vue, or Angular) Required: React, Typescript, DeckGL, NodeJS, Postgres Desired: Google Cloud Platform What We Offer Competitive salary and comprehensive benefits package. A vibrant and supportive work environment. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack Developer

Milton Keynes, Buckinghamshire, South East, United Kingdom
Hybrid / WFH Options
Incentivesmart
Bank Holidays that increase with length of service, optional pension and healthcare and internal reward and recognition programme. Required skills C# .NET 8.0+ ASP.NET MVC SQL (specifically PostgreSQL) HTML JavaScript CSS (inc. Sass and Tailwind CSS) Git Excellent communication skills Nice to haves: Native or hybrid iOS and/or Android app development HTMX Stimulus AWS About Incentivesmart Incentivesmart are More ❯
Employment Type: Permanent, Work From Home
Salary: £70,000
Posted:

Lead R Engineer / Data Scientist - Integrated Pest Management (IPM)

Fully Remote, St James's Square, Greater London, United Kingdom
Hybrid / WFH Options
Morris Sinclair Recruitment
communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯
Employment Type: Permanent
Salary: £70000 - £120000/annum
Posted:

Lead Data Engineer

Austin, Texas, United States
PMCS SERVICES
products and organizational units. Experience designing and developing scripts using Python Experience on an agile sprint team Experience with JIRA software Experience designing and developing code using Java and JavaScript Experience developing CI/CD pipelines with GitHub and Git Actions Experience as a Mulesoft developer Experience as a SAS Viya Administrator Experience developing code in C# Preferred Skills: Proven More ❯
Employment Type: Any
Salary: USD Annual
Posted: