ECMAScript Job Vacancies

201 to 225 of 3,894 ECMAScript Jobs

Senior Software Engineer

Chigwell, Essex, United Kingdom
Avanti Recruitment
and peers in scrum meetings. Technical Stack: ASP.NET 4.6+ MVC 5 C# 6+ including advanced language features (generics, lambdas, delegates) Entity Framework 6+ SQL Server 2014+ TDD/NUnit JavaScript/jQuery/AJAX, HTML5, CSS3 Design Patterns and SOLID Principles Desirable experience: ASP.NET Core, Entity Framework Core Azure Service Bus Vue, AngularJS Agile methodologies/Scrum Automated browser testing More ❯
Employment Type: Permanent
Salary: £100000 - £120000/annum
Posted:

Senior Software Engineer with Security Clearance

Washington, Pennsylvania, United States
Marathon TS Inc
both front-end and back-end development • Undergraduate or bachelor's degree in computer science or a related field (equivalent experience may be considered) • Proficiency in Python, Node.js, HTML, JavaScript, React • Familiarity with Docker and AWS infrastructure • Strong analytical and problem-solving skills, with the ability to work on complex challenges and deliver impactful solutions. • Strong sense of curiosity and More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Developer with Security Clearance

Tucson, Arizona, United States
Hybrid / WFH Options
Ed Wallach Search Group
their technical abilities • Highly proficient in C++ and Python for engineering and scientific applications in LINUX environments • Knowledge of cloud computing platforms like Amazon Web Services (AWS) • Knowledge of Javascript and web technologies such as VueJS or React • Experience automating workflows across the enterprise • DevOps and Cloud computing Experience (Gitlab, CI/CD, CVE mitigations, Docker, Kubernetes, PIP) • Agile development More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Software Engineer Sr with Security Clearance

Newport News, Virginia, United States
Caribou Thunder, LLC
of software lifecycle and ability to interpret static code analysis Effective communicator and collaborative team player with attention to detail Preferred: Programming languages: C, C++, C#, .NET, Python, Perl, JavaScript, Ansible Frameworks: Spring, Vue.js Tools: Git, JIRA, Jenkins, Bitbucket, Confluence Platforms: Windows, Linux, Virtual Machines, OCI Containers Concepts: DevSecOps, TDD, CI/CD, container orchestration (e.g., Kubernetes) C2 Systems, STIG More ❯
Employment Type: Permanent
Salary: USD 155,000 Annual
Posted:

Product Owner

Cardiff, UK
Hybrid / WFH Options
Greystone Consulting Group Ltd
constraints. Strong communication, problem-solving, agile, user experience, data analysis skills The Company Tech Stack (for context): Mobile: Flutter Backend: .NET, C#, SQL, RESTful APIs, Azure DevOps Frontend: Angular, JavaScript, HTML/CSS Infrastructure: Microservices, CI/CD pipelines Your Mission: Launch a working MVP of the company’s MTD feature in the app — a standalone but integrated service that More ❯
Employment Type: Full-time
Posted:

Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Haystack
fluency is essential. You’ll collaborate with product managers, designers, and senior engineers to understand project goals and deliver high-quality solutions. You’ll work with technologies like Node.js, JavaScript, TypeScript, and React, and play a key role in leveraging AI-powered development tools (such as GitHub Copilot, Cursor, Claude Code, or Gemini) to improve efficiency and code quality. We More ❯
Posted:

Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
Haystack
fluency is essential. You’ll collaborate with product managers, designers, and senior engineers to understand project goals and deliver high-quality solutions. You’ll work with technologies like Node.js, JavaScript, TypeScript, and React, and play a key role in leveraging AI-powered development tools (such as GitHub Copilot, Cursor, Claude Code, or Gemini) to improve efficiency and code quality. We More ❯
Posted:

SDN Software Engineer with Security Clearance

Odenton, Maryland, United States
Hybrid / WFH Options
Marathon TS Inc
/or other applicable tools. Experience designing, building and deploying DevOps pipelines with Bitbucket, Git, Jenkins, Artifactory and Ansible (or equivalent tools). Web development experience, specifically using HTML, JavaScript and UI frameworks such as React. Experience with Atlassian tools, including JIRA and Confluence. Experience working remotely with a geographically dispersed team. Experience developing and deploying software in a DoD More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Full Stack Engineer

Dundee, UK
Broker Insights
to day operation of systems, including availability, security and data integrity Collaborate daily with product, data and DevOps teams in short agile sprints. Skills & Experience Production experience with Vue.js, JavaScript/TypeScript, HTML and CSS. Proficiency in at least one back‐end language (Python, Java, C#, Node). Strong SQL and familiarity with relational & NoSQL databases. Experience designing and consuming More ❯
Posted:

Head of AI & Technology

London, UK
Hybrid / WFH Options
Reed.ai
Minimum 8 years of commercial 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 Tools such as Windsurf, Aider More ❯
Posted:

Head of AI & Technology

City of London, Greater London, UK
Hybrid / WFH Options
Reed.ai
Minimum 8 years of commercial 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 Tools such as Windsurf, Aider More ❯
Posted:

Full Stack Software Engineer with Security Clearance

Herndon, Virginia, United States
The Swift Group
for each developer by building user stories and liaison with the customer product owner to develop and clarify requirements and obtain feedback. Requirements: Extensive experience developing web applications with JavaScript frameworks such as Angular, React, Node.js, Next.js Experience in building secure APIs within AWS Cloud platform and building secure AWS Lambda Serverless components Experience with Agile methodologies and tools Continuous More ❯
Employment Type: Permanent
Salary: USD 290,004 Annual
Posted:

IAM Security Engineer/full-stack developer ,Assistant Vice President

London, United Kingdom
STATE STREET CORPORATION
expertise in one of the core programming languages (Java, Python, etc) Designing, implementing, and managing databases (MySQL, PostgreSQL, MongoDB). Creating user interfaces using languages like HTML, CSS, and JavaScript, along with frameworks like React, Angular or Vue Developing and deploying applications within cloud environments ( AWS, Azure, Google Cloud), utilizing cloud services for storage, compute, and other functionalities Good understanding More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Full Stack Software Engineer II

Glasgow, Scotland, United Kingdom
J.P. MORGAN-1
a technical discipline (e.g., cloud, artificial intelligence, machine learning, mobile, etc.) Hands-on experience in UI development with experience in React or Angular, TypeScript, CSS, Micro Frontend Development, and JavaScript Backend Technology - Java/Spring, Kafka, NoSQL ( MongoDB, Cassandra ) Preferred qualifications, capabilities, and skills Exposure to cloud technologies (AWS, kubernetes) Experience in architecture and design of microservices Learn new skills More ❯
Posted:

Full Stack Software Engineer (Ft. Meade, MD) with Security Clearance

Maryland, United States
Set of X
candidates bring some combination of UI/UX, middleware/API, back-end, DevOps, CNO, or data science experience with a heavier interest/experience in UI and frontend. JavaScript/HTML/CSS experience. Experience developing with UI frameworks (e.g., React, Angular, etc.). Familiarity with Relational Databases (Postgres, SQLite, etc.). Experience writing scripts and services in Python. More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Engineer with Security Clearance

Mc Lean, Virginia, United States
Hybrid / WFH Options
Gridiron IT Solutions
adapting agile principles to a solo development environment Experience providing software demonstrations once a quarter to the customer ASP.Net C# LINQ and entity framework Object Relationship Mapping (ORM) Python JavaScript CSS SQL/MySQL Server Visual Studio workstations and some Eclipse ISS Web Servers hosting XML and PDF generation Desired: Jira Git SMTP AWS (EC2, S3, RDS Object Storage) ServiceNow More ❯
Employment Type: Permanent
Salary: USD 220,000 Annual
Posted:

Register Your Interest - Technical Graduate Programme - Space, Defence & Intelligence

England, United Kingdom
Industry Placements
and/or knowledge of programming, problem-solving, data analysis, or systems development would be beneficial for this role. Including any of the following: Programming Languages C++ Java Python JavaScript C# Systems & Tools Linux/Unix operating systems Cloud Technologies (AWS, Azure, Google Cloud) DevOps tools (e.g., Docker, Kubernetes) Version Control Systems (e.g., Git) Machine Learning/AI technologies Software More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer

London, United Kingdom
Hybrid / WFH Options
INSTANDA
advocating high quality of code. Essential: Technical Skills: C# .NET ASP .NET MVC LINQ and Entity Framework/LINQ to SQL Web-based languages such as HTML, CSS and JavaScript SQL Server Web APIs, e.g. REST Source control management, e.g. Git/Azure/Azure DevOps Unit tests, e.g. XUnit OOP ad SOLID principles Behavioural Skills: Proactive self-starter, who More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer II - Front End Developer React and Java

Glasgow, Scotland, United Kingdom
J.P. MORGAN-1
degree in Computer science or similar. Very Strong problem solving, analytical and communication skills (both verbal and written) Must to have recent working experience with client side technologies – HTML, JavaScript, ReactJS, jQuery, Angular JS etc. Good understanding of core Java (at least JDK 1.8) & prefer to have some experience with Spring Boot. Good to have experience using AWS cloud services More ❯
Posted:

Lead Software Engineer

London, United Kingdom
Lloyds Banking Group
willing to help grow and guide junior engineers towards appropriate target architectures Strong programming skills with a good working knowledge of Java & Spring Boot microservices and/or modern JavaScript libraries, such as ReactJS, as well as a proficient understanding of modern engineering toolsets like Kubernetes and Jenkins Knowledge of java development standard methodologies and patterns with an understanding of More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

England, UK
Hybrid / WFH Options
Twinkl Educational Publishing
development, particularly in large-scale, cloud-based systems with CI/CD practices. You bring deep expertise in modern frontend frameworks (especially React) and essential web technologies—HTML, CSS, JavaScript, TypeScript, and accessibility (a11y). You are experienced with automated testing and familiar with TDD. You’ve worked in product-centric teams that prioritise strong engineering principles like TDD and More ❯
Employment Type: Full-time
Posted:

Senior Application Support Engineer

Birmingham, UK
TXP
Alerting & Monitoring requirements from production perspective are addressed in every project and system under change Relevant Technical Experience Strong C# web background, NET, MVC, Razor, AJAX HTML/CSS, JavaScript, Knockout, JQuery, Angular Entity Framework, Temporal DB WCF, web services, Microservices, Web APIs Thorough understanding of SQL Server admin, SQL server performance tuning, T-SQL, Stored Procedures, Functions, SQL server More ❯
Posted:

Senior Software Engineer, Pricing and Derived Data

London, United Kingdom
P2P
but even better listening and communication skills. Strong attention to detail, with a track record of leading and driving projects to completion. Desirable Qualifications: More than one of: Ruby, JavaScript, Python. One of: Java, C#, C/C++. PostgreSQL, the database and the query language. Kafka/RabbitMQ or similar event-based platforms. Data structures and design/analysis of More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Development Manager

Rochester, Kent, South East, United Kingdom
Hybrid / WFH Options
Technical Placements
workflows. Design Strong skills in C and one or more of the following C++ for low-level programming and/or C#, .NET Framework and/or HTML, CSS, JavaScript, and/or frameworks like React or Angular with associated cloud services. Familiarity with microcontroller architectures (e.g., ARM Cortex-M) and hardware interfaces. Knowledge of popular communication technologies such as More ❯
Employment Type: Permanent, Work From Home
Posted:

Software Engineer-Developer (Associate, Experienced, Senior)

Berkeley, Missouri, United States
BOEING
/Experience): Ability to acquire a U.S. Secret Security Clearance (Post-Start). Experience with web-based environment development. 1+ years of experience in software development languages (e.g. Python, JavaScript, C++ and C#). Familiarity with database solutions (e.g. SQL, MongoDB ). Experience with working in an Agile environment Preferred Qualifications (Desired Skills/Experience): Bachelor of Science degree from More ❯
Employment Type: Permanent
Salary: USD Annual
Posted: