1 to 25 of 1,203 ECMAScript Jobs

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
software development experience, with at least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development ...

Senior Java Software Engineer

Hiring Organisation
Information Tech Consultants
Location
England, United Kingdom
Knowledge: Hands on experience of Core Java, Multithreading, and Spring Framework (Boot, Security, Data JPA). Modern Web Stack: Proficiency in HTML5, CSS3, and JavaScript/TypeScript . Cloud & DevOps: Familiarity with AWS, Azure, or GCP and containerization tools like Docker/Kubernetes . Tools: Expert knowledge of Git, Maven ...

Senior Software Engineer

Hiring Organisation
Oscar Technology
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
Core Solid front-end development experience with Angular and/or React Experience with Entity Framework/Entity Framework Core Knowledge of HTML, CSS, JavaScript/TypeScript Familiarity with REST APIs , Git , and modern development workflows Experience or strong interest in AI technologies (e.g., OpenAI APIs, ML integrations) Nice ...

Software Developer

Hiring Organisation
Spraying Systems Co
Location
glendale heights, illinois, united states
apply. Key Responsibilities Full-Stack Development : Design and build web applications and REST APIs (including OData and Minimal APIs) using .NET (C#) , HTML, CSS, JavaScript, and React/Next.js . AI & LLM Integration : Integrate and orchestrate Large Language Model APIs (such as Anthropic Claude API, OpenAI/ChatGPT API, Google ...

Analytics Application Engineer/Developer

Hiring Organisation
Mercer
Location
Lisboa, Portugal
Employment Type
Permanent
Salary
EUR Annual
Kubernetes, or similar). Possess strong programming skills, knowledge of data warehousing and visualization tools Develop clean, responsive, and accessible UIs using: HTML5, CSS3, JavaScript/TypeScript React Optimize front-end performance for speed and scalability Experience Required: Bachelor's degree in Computer Science, Software Engineering, or related field ...

Full Stack Developer (.NET / C# / React)

Hiring Organisation
Legado (joinlegado.com)
Location
Edinburgh, Scotland, United Kingdom
taking. Tech Stack Back-End .NET/.NET Core C# ASP.NET REST APIs SQL (Azure SQL) Azure hosting & services Front-End React TypeScript/JavaScript HTML5/CSS3 Infrastructure & DevOps Azure DevOps Pipelines CI/CD Secure cloud environments Modern Tooling AI-assisted development (Claude, GitHub Copilot etc.) Automated testing ...

Contract Senior Full Stack Software Engineer

Hiring Organisation
IO Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700 per day + Inside IR35
mentoring others, and improving the resilience and security of live systems. Key experience Strong backend development in two or more languages (Python, Node.js/JavaScript, Ruby) End-to-end full stack experience including modern frontend frameworks and accessibility standards Experience building cloud-hosted services (AWS, serverless/FaaS) Containerisation ...

Senior Software Engineer

Hiring Organisation
Low Carbon Contracts Company
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
from the roadmap. Solve ambiguous problems with scalable solutions. Skills Knowledge and Expertise Essential: Strong expertise in Python web development frameworks (e.g., Django) and JavaScript/TypeScript, with experience working in cloud environments such as AWS, Azure, or GCP. Skilled in applying software technical design principles to build scalable, secure ...

Senior Software Engineer

Hiring Organisation
Low Carbon Contracts Company
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
from the roadmap. Solve ambiguous problems with scalable solutions. Skills Knowledge and Expertise Essential: Strong expertise in Python web development frameworks (e.g., Django) and JavaScript/TypeScript, with experience working in cloud environments such as AWS, Azure, or GCP. Skilled in applying software technical design principles to build scalable, secure ...

Software Engineer

Hiring Organisation
CarFinance 247
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£40,000
Software Engineer at Carfinance247 is a passionate full-stack technologist; interested in web technologies with skills based in .NET but also encompassing JavaScript and modern SPA (Vue.Js/Typescript/CSS3). The main responsibilities will be to help design and develop new customer facing applications and components, or enhancements ...

Java Fullstack Developer

Hiring Organisation
Randstad Digital
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
enjoy owning the full development lifecycle - we want to hear from you. Essential Skills & Experience Strong proficiency in Java (mandatory) Solid experience with JavaScript, HTML, and CSS Hands-on experience with Spring/Spring Boot Experience with modern front-end frameworks such as React, Angular, or Vue Strong understanding ...

MERN Stack SME

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Redux desirable) Node.js & Express.js MongoDB (schema design, aggregation pipelines, indexing) Experience with RESTful APIs, GraphQL (preferred), and microservices architecture. Solid understanding of HTML5, CSS3, JavaScript (ES6+). Strong knowledge of Git, CI/CD pipelines, unit testing frameworks (Jest, Mocha, etc.). Experience deploying applications on Azure ...

Senior Software Developer in Test - Security & Infrastructure

Hiring Organisation
TEN10 SOLUTIONS LIMITED
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
clearance . Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript , or similar. Strong knowledge of integration testing and automation frameworks . Experience leading small teams of testers and contributing to the overall QA strategy . Knowledge ...

Software Engineer

Hiring Organisation
Low Carbon Contracts Company
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
solving supports overall team and business priorities. Skills Knowledge and Expertise Essential Hands-on experience in Python and web-development framework(e.g., Django) and JavaScript/TypeScript, ideally in cloud environments such as AWS, Azure or GCP. Strong understanding of core software engineering principles. Experience with CI/CD pipelines ...

Full Stack Engineer

Hiring Organisation
Randstad Digital
Location
Manchester Area, United Kingdom
enjoy owning the full development lifecycle — we want to hear from you. Essential Skills & Experience Strong proficiency in Java (mandatory) Solid experience with JavaScript, HTML, and CSS Hands-on experience with Spring/Spring Boot Experience with modern front-end frameworks such as React, Angular, or Vue Strong understanding ...

Full Stack Developer

Hiring Organisation
Magnus Technology Solutions
Location
dallas, texas, united states
comparable UI framework. • 2+ years with Spring Boot and Hibernate. • 3+ years working with Servlet, JSP, MVC, and Security frameworks. • Proficiency in: • JavaScript and jQuery (3+ years) • REST and SOAP web services • JDBC, SQL, stored procedures, and JPA • XML, XSD, XSLT • Unit testing (JUnit, Mockito, JMockit, etc.) • Familiarity with Agile ...

Full Stack Java Developer

Hiring Organisation
Magnus Technology Solutions
Location
dallas, texas, united states
comparable UI framework. • 2+ years with Spring Boot and Hibernate. • 3+ years working with Servlet, JSP, MVC, and Security frameworks. • Proficiency in: • JavaScript and jQuery (3+ years) • REST and SOAP web services • JDBC, SQL, stored procedures, and JPA • XML, XSD, XSLT • Unit testing (JUnit, Mockito, JMockit, etc.) • Familiarity with Agile ...

Software Engineer

Hiring Organisation
Gold Group
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
form of IaC, CI/CD and test automation. Extra info: Expert knowledge of current Java. Proficient in another language such as Python, C++, JavaScript, TypeScript, React. Advanced knowledge of AWS Services such as EC2, EKS, Fargate, IAM, S3, Lambda. Advanced knowledge of CI/CD software pipelines for Cloud ...

ASP.Net Developer

Hiring Organisation
Ascent Sourcing Ltd
Location
Ulverston, Cumbria, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 per annum
with colleagues. Essential Skills/Qualifications: Microsoft .Net (including Core, WebAPI, Kestral) C# Azure DevOps, Git, CI/CD pipelines (Azure DevOps, GitHub Actions) JavaScript/TypeScript, HTML, CSS Entity Framework Core, Microsoft SQL Server Strong problem-solving skills and curiosity Solid ICT knowledge (MS Office) Excellent communication and numeracy ...

ASP.Net Developer

Hiring Organisation
Ascent Sourcing Ltd
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 per annum
with colleagues. Essential Skills/Qualifications: Microsoft .Net (including Core, WebAPI, Kestral) C# Azure DevOps, Git, CI/CD pipelines (Azure DevOps, GitHub Actions) JavaScript/TypeScript, HTML, CSS Entity Framework Core, Microsoft SQL Server Strong problem-solving skills and curiosity Solid ICT knowledge (MS Office) Excellent communication and numeracy ...

Solutions Architecture & Engineering Lead

Hiring Organisation
Bison Bank
Location
Lisboa, Portugal
Employment Type
Permanent
Salary
EUR Annual
Strong knowledge of software architecture and distributed systems design. Experience with API driven architectures, microservices, integration layers, or event driven systems. Proficiency in Python, JavaScript (React, Angular), .NET, or Java. Understanding of secure web application practices: OAuth2, JWT, OWASP. Experience with Next.js, React, or React Native (considered a differentiator). ...

Software Team Lead

Hiring Organisation
Zenovo
Location
North Bristol, Nibley, Gloucestershire, United Kingdom
Employment Type
Permanent
Salary
£75000 - £85000/annum Up to £85,000 (Depending on Experien
culture of ownership, collaboration, and continuous improvement Skills & Experience Technical 5+ years of commercial software development experience Strong proficiency in Python & Java, or JavaScript/TypeScript Full-stack experience, ideally with React on the frontend and REST APIs backed by relational databases (e.g. PostgreSQL) Experience working with cloud platforms ...

Java Developer (Full Stack)

Hiring Organisation
RP Recruitment Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
like Flask. Implement best practices in software development, including exception handling, data structures, and object-oriented programming (OOP). Front-end development using VueJS, JavaScript, CSS, and HTML to create seamless user interfaces. Develop and optimize SQL databases, ensuring efficient data storage and retrieval. Utilize AWS Core services and Terraform ...

Full Stack Developer

Hiring Organisation
Advanced Robotics Group, LLC
Location
houston, texas, united states
projects from concept through implementation · Passion for growth and excellence in delivering high-quality, detail-oriented solutions · Strong experience with Python/Django and JavaScript/TypeScript, especially in modern web application development · Experience with React or similar frameworks for single-page applications · Experience with PostgreSQL (or similar technologies) · Experience ...

Java Developer

Hiring Organisation
1X2 Network
Location
Brighton, England, United Kingdom
version control systems, preferably Git Understanding of software development methodologies, including Agile/Scrum Desirable Experience Experience with front-end technologies like HTML, CSS, JavaScript, and frameworks such as Angular or React Familiarity with cloud platforms such as AWS Knowledge of microservices architecture and containerization tools like Docker or Kubernetes ...