203 Javascript jobs in London

JOB SUMMARY

We are looking for a highly motivated Senior Vue.js Developer to join our team.  You will be responsible for evolving and scaling our existing platforms as well as working on new greenfield projects. Mentoring other developers, practising excellent communication and motivation within the team is essential. There is a lot of scope for responsibility and the individual should be comfortable taking ownership of and managing all aspects of the front-end stack. You will join a team of front-end, back-end and database developers to deliver modern Progressive-Web-Applications, Applications and Websites.

ESSENTIAL DUTIES

• Evolving and scaling our existing platforms with informed technical decisions.
• Conceptualizing and developing new, stimulating user-facing features.
• Creating reusable libraries and efficient code for broader team use in future projects.
• Prioritizing the optimization of applications for optimal speed and scalability.
• Managing Pull Requests in alignment with the team's workflow, ensuring project expectations and deadlines are met.
• Refining internal processes to enhance the performance, reliability, and usability of our platforms.
• Identifying and making improvements to any performance-related issues affecting our web and mobile-based applications.
• Upholding stringent security standards for web and mobile applications, promptly resolving and protecting against vulnerabilities.
• Staying in tune with innovations and advancements in JavaScript and applying them to keep our applications highly competitive and adept.
• Mentoring team members in a supportive environment to further their growth and understanding of JavaScript's core concepts and best practices.
• Fostering an atmosphere for innovation and positivity, inspiring team members to deliver their best work consistently.

Requirements

Essential Skills

• Strong understanding of the following technologies:
• ES6 & JavaScript
• Vue.js
• Web markup, including HTML & CSS
• Asynchronous request handling using the likes of REST or GraphQL
• Front-end build tools, such as Vite, Webpack and CLIs
• Git and its related platforms like Github or Gitlabs
• Package management using npm
• Browser rendering behaviour and performance
• Passion for writing quality, high-performance and maintainable code following best practices

Desirable Skills

• Typescript
• Nuxt.js
• Node.js
• Storybook
• CI/CD, Pipeline management, GitHub Actions
• Docker
• Prototyping/Storyboarding
• Graphics editing with the likes of Figma, Photoshop & Illustrator
• Mobile & Responsive design
• Testing tools like Vitest, Jest, Playwright, Cypress

 KEY DELIVERABLES

• Leverage advanced JavaScript techniques to develop high-quality, efficient code, assess coding opportunities, conduct robust code reviews, streamlining codebase, and prototypes to continuously improve performance and user experience. Accurately estimate the timescales for design, development and testing phases to ensure realistic and effective project scheduling.
• Evaluate the potential impact of each change request, proactively communicating any associated risks to project managers and the leadership team.
• Collaborate proactively with the development team to coordinate the seamless delivery of high-quality application code.

• REQUIRED EXPERIENCE / QUALIFICATIONS
• IT professional with 5 years of design and technical background and knowledge
• Proven experience in web design and development
• Analytical and problem-solving skills
• Self-motivated and able to work/travel independently
• Proactive, able to work with a high level of responsibility and autonomy, able to work under pressure
• Flexible in terms of working time with a priority on “getting the job done”
• A good team player who can perform and work on a wide variety of tasks simultaneously

COMPETENCIES/SKILLS

Technical Skills

• Advanced JavaScript expertise
• Empowered decision making
• Strong oral and written communication skills
• Cultivates teamwork and collaboration
• Effective allocation and management of resources

Personal Effectiveness

• Acts with integrity and professionalism
• Demonstrates adaptability and resilience
• Excellent organizational and time management skills
• Sensitivity towards cultural diversity
• Takes a proactive lead, handles queries, manages issue resolution
• Commitment to quality, detail-oriented approach, and a strong work ethic

Interpersonal Skills

• Influences others across all levels
• Foster open communication
• Builds and maintains positive relationships
• Delivers persuasive presentations to senior management

Growth & Innovation

• Challenges existing procedures
• Identifies weaknesses and proposes improvements
• Encourages continuous learning and improvement

The above statements are intended to describe the general nature and level of work being performed by people assigned to this job. They are not intended to be an exhaustive list of all responsibilities, duties, and requirements.

JavaScript Developer

Location: 3 days per wk from home / 2 days in London

Salary: Circa 65k – 80k + Benefits

JavaScript Developer  required by required by fast-growing, revolutionary tech company!

This is a varied, challenging role in a talented team where you’ll be responsible for developing scalable backend services that bring their AI vision to life. You don’t need to be a machine learning researcher but you do need to know how to integrate modern AI capabilities into productions

Essential:

• At least 4yrs backend development experience
li>Solid Node.js expertise
• Strong understanding of scalable backend design, REST/GraphQL APIs, and event-driven systems
• Experience using LLM APIs (OpenAI, Anthropic etc.) or open-source models (Langchain, LLamaIndex, Haystack etc.)
• Able to work with AWS, Docker, and CI/CD pipelines

Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where you'll be able to bring ideas and keep up to date with emerging technologies! 

Apply now for FULL details!

JavaScript Developer

Location: 3 days per wk from home / 2 days in London

Salary: Circa 65k – 80k + Benefits

JavaScript Developer  required by required by fast-growing, revolutionary tech company!

This is a varied, challenging role in a talented team where you’ll be responsible for developing scalable backend services that bring their AI vision to life. You don’t need to be a machine learning researcher but you do need to know how to integrate modern AI capabilities into productions

Essential:

• At least 4yrs backend development experience
li>Solid Node.js expertise
• Strong understanding of scalable backend design, REST/GraphQL APIs, and event-driven systems
• Experience using LLM APIs (OpenAI, Anthropic etc.) or open-source models (Langchain, LLamaIndex, Haystack etc.)
• Able to work with AWS, Docker, and CI/CD pipelines

Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where you'll be able to bring ideas and keep up to date with emerging technologies! 

Apply now for FULL details!

• Develop and maintain responsive front-end web applications using JavaScript frameworks (React, Vue.js, or Angular).
• Build and manage robust back-end services and APIs using Node.js and related technologies.
• Design and implement database schemas and manage data persistence (SQL and NoSQL).
• Write efficient, reusable, and testable code following best practices.
• Collaborate with UI/UX designers to translate wireframes and mockups into functional interfaces.
• Integrate front-end components with server-side logic.
• Implement security and data protection measures.
• Conduct thorough testing, debugging, and performance optimisation.
• Participate in code reviews and contribute to team knowledge sharing.
• Deploy applications to cloud environments and manage CI/CD pipelines.

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• Minimum of 4-6 years of professional experience in full-stack web development.
• Strong proficiency in JavaScript, HTML5, CSS3, and related web technologies.
• Expertise in at least one modern front-end framework (React, Vue.js, Angular).
• Experience with back-end development using Node.js and Express.js.
• Familiarity with relational databases (e.g., PostgreSQL, MySQL) and/or NoSQL databases (e.g., MongoDB).
• Knowledge of RESTful API design and implementation.
• Experience with version control systems (e.g., Git).
• Understanding of cloud platforms (AWS, Azure, GCP) is a plus.
• Excellent problem-solving skills and attention to detail.

Software Engineer – Surrey – Hybrid – Up to £40k

Are you a passionate Software Engineer ready to make a tangible impact? Do you thrive on solving complex problems and developing scalable, high-quality solutions? Join our client’s growing Software Engineering team and support them in shaping the future of technology across critical projects that matter, within the engineering sector.

About the Role

As a Software Engineer (Level 3), you’ll be at the heart of their development efforts—designing, building, and delivering robust software solutions in collaboration with a talented, supportive team. You'll own your code, contribute to key design decisions, and help mentor Junior Engineers, all while continuing to develop your own skills and expertise.

What You’ll Be Doing…

• Build clean, efficient, and maintainable code using .NET (ASP.NET Core, C#, Web API).
li>Engage in the full software development lifecycle—planning, coding, testing, deploying. < i>Collaborate closely with engineers, managers, and wider teams to deliver scalable solutions.
• Participate in technical design discussions and contribute to architectural decisions.
• Debug and troubleshoot complex issues in real-time.
• Ensure compliance with coding, security, and documentation standards.
• Provide guidance and mentorship to junior team members.
• Help improve test coverage and contribute to evolving best practices.

What You’ll Need…

• Strong expertise in .NET technologies—including ASP.NET Core, C#, Web API.
< i>Proficiency in working with SQL databases and queries.
• Solid grasp of software development best practices and methodologies.
• Experience in code reviews, with a focus on clean, secure, and scalable code.
• Excellent communication and collaboration skills.
• Familiarity with Version Control (e.g. Git).

Even better if you have…

< i>Experience with Agile methodologies.
• Understanding of UI/UX principles and responsive design.
• Exposure to cloud platforms (Azure or AWS).
• Knowledge of CI/CD pipelines and deployment workflows.
• Basic awareness of cybersecurity principles.
• Scripting with Python or PowerShell.
• Experience with SharePoint / O365 Application development.
• Familiarity with CAD software (Bentley, AutoCAD, Autodesk, Trimble).
• Interest in Geospatial mathematics and geometry.

Why Join?

You’ll be working on meaningful projects, be part of a collaborative, inclusive and forward-thinking team and gain continuous development. 

If you're driven by innovation, growth, and the opportunity to do work that matters, apply now and I’ll be in touch shortly &#(phone number removed);

Tilt Recruitment are specialists in IT Recruitment. We work hard to find our candidates their perfect roles within fantastic organisations across the UK. If this role isn’t right for you, please still get in touch with us as we may have other roles which may suit you better.

We also offer up to £500 for every successful referral, if you know someone who matches this skill set please let us know.

Tilt Recruitment is acting as an Employment Business in relation to this vacancy.

Software Engineer - 90,000 - Hybrid

Title : Software Engineer

Company : HPC / AI

Location : London (hybrid)

Package : Up to 90,000

Overview :

A next-generation and scientifically-led HPC team have opened up an opportunity for an experienced Software Engineer with C++ and GPU expertise to join a team of exceptionally talented developers.

You will have the opportunity to shape the developmental trajectory of the business by working on high-performance greenfield projects.

This is a fantastic chance for an experienced C++ engineer with proven experience in a video or high-performance environment to join a world-class team of engineers developing truly novel solutions.

About you:

• C++ is your strongest language
• Ideally experience in Video or Audio Processing
• Experience writing performance-critical software
• Exposure to GPU technology (Vulkan API, OpenGL, OpenCL, CUDA etc.,)
• Relevant degree

Full details are available. Please don't hesitate to get in touch with (email address removed). com to learn more.

We're looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You'll be instrumental in our transition away from Drupal as we modernise and scale our platform.

Tech Stack:

• At least 4 years commercial experience with JavaScript or TypeScript and Node
• Exposure of Laravel and/or Python (Django or Flask a plus)
• Familiarity with Drupal and some knowledge of modern front-end frameworks (React, Vue, etc.)

What You'll Do:

• Build scalable applications using modern frameworks and clean architecture
• Contribute to backend services and APIs (Python or Laravel-based)
• Help re-platform and migrate to a modern stack
• Collaborate cross-functionally with UX, Product, and DevOps

What We Offer:

• A supportive environment that encourages professional growth and continuous learning.
• An inclusive, collaborative culture within one of the UK's leading business services providers.
• A competitive salary and benefits package.

49904MS

INDLON

The opportunity:

We're looking for ambitious engineers with a growth mindset to join our collaborative and driven team in Hertfordshire. You'll thrive in a supportive environment, surrounded by passionate experts, while developing your skills and making an impact.

As a Software Engineer , you'll develop and maintain real-time software tools that drive high-fidelity simulations and control innovative hardware systems. You'll also support the deployment of these tools in designing simulations and running experiments.

You'll need to be adaptable, able to work in new engineering situations, and comfortable abstracting detail to understand system behaviour.

What we're looking for:

Broad engineering experience, with deeper expertise in some of the following areas:

• Software design

• Software design for real-time applications

• Familiarity with Linux operating systems

• Familiarity with C/C++

• Use of microcontrollers (e.g. Raspberry Pi)

• Interface debugging and system integration

• Familiarity with Object-Oriented approaches (beneficial)

What we can offer you:

• Company bonus based on company performance, this can vary year to year.

• Pension with maximum total (employer & employee) contribution of up to 14%.

• Annual salary review.

• Paid overtime.

• Up to 15 days flexi leave.

• 25 days annual leave (plus holiday purchase scheme).

• Fantastic site facilities including subsidised meals, free car parking and more.

• Excellent career progression and development opportunities.

Please reach out to me for further details!

The opportunity:

We're looking for ambitious engineers with a growth mindset to join our collaborative and driven team in Hertfordshire. You'll thrive in a supportive environment, surrounded by passionate experts, while developing your skills and making an impact.

As a Software Engineer , you'll develop and maintain real-time software tools that drive high-fidelity simulations and control innovative hardware systems. You'll also support the deployment of these tools in designing simulations and running experiments.

You'll need to be adaptable, able to work in new engineering situations, and comfortable abstracting detail to understand system behaviour.

What we're looking for:

Broad engineering experience, with deeper expertise in some of the following areas:

• Software design

• Software design for real-time applications

• Familiarity with Linux operating systems

• Familiarity with C/C++

• Use of microcontrollers (e.g. Raspberry Pi)

• Interface debugging and system integration

• Familiarity with Object-Oriented approaches (beneficial)

What we can offer you:

• Company bonus based on company performance, this can vary year to year.

• Pension with maximum total (employer & employee) contribution of up to 14%.

• Annual salary review.

• Paid overtime.

• Up to 15 days flexi leave.

• 25 days annual leave (plus holiday purchase scheme).

• Fantastic site facilities including subsidised meals, free car parking and more.

• Excellent career progression and development opportunities.

Please reach out to me for further details!