*   Proven experience as a React Developer
*   Strong proficiency in JavaScript
*   Experience with popular React.js workflows (such as Redux)
*   Familiarity with RESTful APIs
*   Knowledge of modern authorization mechanisms, such as JSON Web Token
*   Experience with common front-end development tools, such as Babel, Webpack, and NPM
*   Familiarity with code versioning tools such as Git

Freelance, WORK FROM HOME

React Developer Freelancer

Are you passionate about building web applications that push the boundaries of technology and user experience?

Do you enjoy taking innovative ideas and transforming them into exceptional products that make a real impact?

Are you passionate about end-to-end React development and enjoy working in a fast-paced, innovative space?

Leo Recruitment is seeking a **React Web Engineer** on a **12 Month Fixed Term Contract** (open to negotiation on length of contract) on behalf of a FinTech start-up organisation who found a gap in the market to deliver a bespoke, unique payment system designed specifically for the yachting industry – a niche market with few competitors, who are on course to becoming the market-leader in this sector!

This is an exceptional opportunity to be part of an environment that thrives on creativity, individual initiative, team collaboration, and technical excellence. This is your chance to work in a space that’s not only unique but ripe for innovation, with the opportunity to help them turn their vision into reality and create something truly exceptional!

**Salary & Benefits:**

*   12 Month Fixed-Term Contract with competitive salary between £50,000 - £60,000 depending on skills and experience
*   Fully remote work arrangement from anywhere in the UK
*   Two-way flexibility, allowing you to prioritise family, friends, hobbies, and other commitments
*   Open to negotiation on length of contract with potential future career prospects within a growing start-up if the contract is extended or becomes permanent
*   Generous/unlimited holiday (officially 28 days plus bank holidays, however the company operates a flexible ‘fair use’ policy on additional leave beyond this if you want or need to take additional time off)
*   Private healthcare (Vitality)
*   Life insurance
*   Pension scheme
*   Company retreats and the opportunity for occasional travel (such as international yacht shows and team-building events)
*   Casual dress code
*   An enjoyable, positive, entrepreneurial working environment and a great team spirit!

**The Role: React Web Engineer**

*   As a React Web Engineer, you will develop and maintain efficient web applications using React, TypeScript, and Tailwind CSS.
*   You’ll be instrumental in enhancing development speed and workflow with Vite, focusing on rapid prototyping and efficient builds.
*   You will ensure code quality and reliability by writing unit, integration, and end-to-end tests using Vitest.
*   You will build, test, and document reusable UI components with Storybook, ensuring scalability and consistency.
*   You will collaborate with cross-functional teams to deliver a user-friendly, cohesive product, while optimising performance for speed and scalability.
*   You will contribute to code reviews, CI/CD pipelines, and stay up-to-date with the latest web technologies to maintain cutting-edge solutions.

**To Be Successful:**

*   You will need to have at least 5 years of experience in web development with a strong background in building and maintaining complex applications.
*   You should be proficient in React (including hooks and context API), TypeScript, and modern web technologies like Tailwind CSS, HTML5, and CSS3.
*   You’ll need hands-on experience with Vite for development efficiency and expertise in testing frameworks like Vitest or Jest.
*   You will need strong experience with Storybook for developing and documenting UI components, and familiarity with state management libraries.
*   You should be skilled in API integration, version control (Git), and responsive design principles.
*   You will need to have strong problem-solving abilities, be a self-starter attitude, and have the ability to work effectively in a distributed team environment
*   Experience in the financial services industry is a plus.

**Location:** Fully remote from anywhere in the UK.

**Working Hours:** The company operates a fully flexible working approach, however you will need to show commitment to the role and be able to dedicate time outside of the normal 9-5 hours, particularly during the early phase of development prior to launch.

**This Role Would Be Suitable For:** A React Web Engineer, Web Developer, React.js Developer, Frontend Developer, Web Application Developer, or React Software Engineer who would be excited to join a highly innovative team at the forefront of financial management technology in the yachting industry.

**Diversity & Inclusion:** Leo Recruitment and all our clients are committed to creating an inclusive and innovative future. Our recruitment process reflects our ethical values, celebrating the unique backgrounds, perspectives, and experiences of every individual. You can always expect fairness and equality when you apply through us

Senior React Web Engineer

🌟**Senior Web Application Engineer**🌟

Remote Role

🚀A5 Labs is the advanced technology hub behind the screen of the most prominent mobile gaming companies in the world. We make the online gambling future possible by developing top-quality security technology and coding innovative game designs. At A5 Labs, we are all about creating exceptional AI-driven experiences that set new industry standards. If you have ever indulged in an online casino game, chances are you have already come across our technology and innovation.

**The Role**

We are now looking for a Senior Web App Engineer. You will be responsible for designing, developing, and optimizing engaging online games and applications. As we operate in a startup environment, this position requires an entrepreneurial mindset, creativity, strong technical skills, and a passion for gaming. You will work closely with cross-functional teams to bring innovative ideas to life and deliver exceptional user experiences.

✅ **Your Responsibilities_Web App Development:_**

*   Implemented complex (game) mechanics, user interfaces, animations, and visual effects to create immersive user experiences.
*   Optimize performance for a smooth and responsive gameplay experience across different devices and browsers.

**_Cross-Platform Compatibility:_**

*   Ensure compatibility and responsiveness of games across various platforms and devices, including desktop, mobile, and tablets.
*   Test games on different browsers and devices to identify and resolve compatibility issues and optimize performance.

**_Collaboration and Creativity:_**

*   Collaborate with game designers, artists, and other developers to brainstorm ideas, define game concepts, and bring them to life.
*   Contribute creative ideas and solutions to enhance gameplay, user engagement, and overall gaming experience.
*   Stay updated on the latest trends and technologies in HTML5 game development to drive innovation and maintain competitiveness.

**_Quality Assurance:_**

*   Conduct thorough testing and debugging to identify and fix bugs, glitches, and performance issues.
*   Work closely with QA testers to ensure the quality and stability of games before release.
*   Implement analytics and tracking tools to gather user feedback and insights for continuous improvement.

**_Documentation and Maintenance:_**

*   Document code, game design specifications, and development processes for future reference and knowledge sharing.
*   Provide ongoing maintenance and support for released games, including updates, patches, and bug fixes.
*   Collaborate with the technical support team to address user inquiries and resolve technical issues related to games.

👀 **What You Bring to the Table**

*   Strong Experience with React & Next.js
*   Strong expertise in TypeScript, JavaScript, HTML5, and CSS3.
*   Experience with Tailwind CSS, Bootstrap, MUI, SASS, CSS Animations.
*   Experience with Node.js, REST APIs, Vite, Git.

🎰 This role sits within **AceGuardian**, a cutting-edge team within A5 Labs. AceGuardian is focused on building advanced AI agents through reinforcement learning, game solving, fine-tuning, and planning. These AI agents tackle challenges like anti-cheat detection (collusion, bots) and optimal gameplay across various games. The team operates in stealth mode and is composed of experts in AI, machine learning, and game development, all working together to revolutionise both gaming and real-world problem-solving. By joining this team, you’ll contribute to innovative projects that push the boundaries of AI in the gaming industry, while working alongside some of the brightest minds in the field.

Senior Web Application Developer

Synchro is collaborating with one of the UK’s top software companies to recruit a Senior Frontend Developer specialising in React.js for a 6-month contract.

In this role, you will take primary responsibility for front-end development tasks within the backlog, completing some independently and others through pair programming. Working as part of a multidisciplinary squad, you may also contribute to Back-End development, QA, and other areas to ensure sprint goals are achieved.

Our client is currently addressing some technical debt and is on a real mission to rebuild their core platforms using the latest technologies. This platforms services millions of users with highly complex API integrations and a user friendly mobile customer journey. The back end of the new platforms will be primarily designed in a microservices way built using C#.Net Core and the front end UI will be built around React JS

Skills required:

*   Attention to detail - taking designs and translating into UI
*   Javascript (ES6/7/8)
*   HTML5
*   CSS3, SASS
*   Git experience
*   React
*   Unit and integration testing experience (ideally Jest, Testing Library, Cypress etc)
*   Flux style state management like Redux (Sagas or Thunks) or useReducer
*   Styled Components
*   Typescript
*   Experience with Docker/containers
*   Experience setting up projects - linting, formatting, project structure etc.

ROLE: Frontend Developer (JavaScript/ReactJS)

LOCATION: Fully Remote

DAY RATE: £400 - £500 per day (Outside IR35)

Please contact Joely Callaghan at Synchro to explore this fantastic exclusive opportunity further or apply through this job posting and we will be in touch shortly.

Senior Frontend Developer (Contract)

This is an exciting time for a mid-level Software Developer with front end skills in JavaScript and React to join an internationally trusted source of medical news and education to the healthcare professional community, during a period of technical growth and transformation **The Role** Providing readily accessible content via a range of subject-specific websites and digital platforms, the Software Developer / Web Developer will work alongside other web developers, within a studio team comprising project management, design and video. Supporting the development of all my client's websites, the Software Developer / Web Developer will plan and execute new feature requests, working both collaboratively and on solo projects. **The Company** The Software Developer / Web Developer will be joining a company established 8 years ago to meet a growing need for independent expert advice and cutting-edge research directly from international thought leaders. Having grown rapidly to establish themselves as a trusted global leader in this field, their close-knit team work remotely, but with collaboration hubs currently in London where they enjoy getting together to explore and share ideas. With a flexible approach to working and with excellent benefits and opportunities for career development and advancement, this really is an excellent time to join. **Benefits Include**

*   Remote working
*   Flexible hours
*   25 days holiday
*   Bonus scheme
*   Pension

**What's required of the Software Developer / Web Developer?**

*   Commercial development experience with a front end focus, of building and maintaining modern websites in JavaScript and React
*   Experience of React toolkits - ideally Gatsby - would be beneficial
*   Some back end experience, ideally with PHP
*   Some experience with databases such as MySQL and PostgreSQL
*   Any experience with cloud (AWS preferred) and/or containerisation with Docker would be advantageous, although full training will be provided

**What Next?** If you're a Software Developer, Web Developer, React Developer, or JavaScript Developer (!) looking for the next step in your career and have any questions or would simply welcome a chat about this excellent position and company, just call me or drop me an email, as I'd love to hear from you! If, though, you think this role could be right for you and you'd like to learn more, then please apply now! Software Developer, Web Developer, React Developer, JavaScript Developer, Frontend Developer Corriculo Ltd acts as an employment agency and an employment business. #GB, #ChannelA

Software Developer, Web, React, JavaScript, PHP, 100% remote, COR7099

Frontend Developer - Tikz/PGF/LaTeX **Experience:** 3 - 25 Years **Location: -** Permanent Remote anywhere in the World **Contract Length:** 6 Months **Type: Full time** contract(8 hrs/day) Overlap Hours: 4 hrs/day with PST **Total Years Of exp: 3+ years experienceMandatory** React OR JavaScript OR Typescript: 3 yrs Tikz/LaTex: 1yr; (Basic knowledge of Tikz/LaTex will be ideal). **Nice to have:** Prior experience with graphical rendering, data visualization, or charting libraries in the context of front-end development, and Experience working with design tools (e.g., Figma, Sketch) or design systems. **About The Role** We are actively seeking talented developers proficient in React JS/TS and Tikz/PGF to join our dynamic team, dedicated to pushing the boundaries of innovative software and AI solutions. This opportunity is ideal for professionals who enjoy tackling challenging problems, developing creative solutions, and contributing to next-generation technologies in a fast-paced, collaborative environment. You will work with different companies across the US, developing both commercial and research-driven solutions at the intersection of front-end development and advanced visualization. **Required Skills**

*   Write readable, reusable, and maintainable code with a strong emphasis on scalability and efficiency.
*   Participate in code reviews, providing constructive feedback and ensuring code quality standards are met.
*   Demonstrate proficiency in React JS for building complex, dynamic UIs with modern web technologies.
*   Utilize Tikz/PGF for graphical and data-driven visualization within web applications, especially for complex charts, diagrams, and interactive graphics.
*   Strong experience with JavaScript/TypeScript in modern frameworks and libraries.
*   Create modular, component-driven architecture to ensure maintainability and extensibility of the codebase.
*   Strong knowledge of web performance optimization, responsive design, and cross-browser compatibility.
*   Strong understanding of ES6+ JavaScript, React, Redux, and state management principles.
*   Design, develop, and maintain reusable code and libraries.
*   Collaborate with back-end developers and other team members to integrate front-end and back-end components seamlessly.
*   Bachelor’s or Master’s degree in Engineering, Computer Science, or a related field (or equivalent experience).
*   At least 3+ years of relevant experience in front-end development using React JS, with experience in using Tikz/PGF for rendering complex diagrams and graphics within the web environment.
*   Experience with version control systems, especially Git, and familiarity with agile software development practices.
*   Demonstrable experience developing high-quality, high-performance, and maintainable web applications.
*   Proficient in written and spoken English, with strong communication skills to collaborate effectively across teams and time zones.

**Technologies**

*   Front-end: React, Redux, HTML5, CSS3, JavaScript/TypeScript
*   Visualization: Tikz/PGF, D3.js , SVG

Skills: css3,latex,figma,charting libraries,tikz,svg,typescript,react js,sketch,d3.js,react,javascript,html5,git,redux,data visualization,front-end development,pgf,web,graphical rendering,version control systems

Sr React Frontend Developer - Tikz/PGF/LaTeX

**Frontend Developer - Remote**

We are looking for Senior Frontend Developers, for a leading Financial Services platform. You will be responsible for designing, implementing, and maintaining robust, scalable, and secure frontend solutions using React.js, Redux & Hooks, they use AWS cloud services. You will work closely with a cross-functional team of developers, designers, and product managers to deliver high-quality software solutions that exceed our customers' expectations

**Key Responsibilities:**

*   Designing and developing complex UI's
*   State management in React Functional Components
*   Asynchronous Functions in React
*   Class based components to React Hooks
*   Writing clean, maintainable, and testable code following best practices and coding standards
*   Optimizing application performance and scalability through code refactoring and performance tuning.
*   Experience using AWS tools and working in an AWS environment
*   Participating in code reviews and providing constructive feedback to team members.

**Requirements:**

*   5+ years of experience working as a Frontend Developer, with a strong focus on React.js & React Hooks
*   Experience in testing with Jest / React Testing Library / Cypress advantageous
*   Strong problem-solving skills and attention to detail.
*   Excellent communication and collaboration skills.
*   Mobile experience with React Native (bonus not essential)

**What's in it for you:**

*   Up to $130k + super (depending on experience)
*   Fully remote opportunity - work from anywhere in ANZ
*   Modern tech stack, constantly being upgraded
*   Stability in a rapidly growing FinTech

****** ******** *********

**Location:** Remote

**Duration:** 6-month contract, starting ASAP

**About the Role:** Our global software client is seeking a talented developer to join their Internationalization Team. This team ensures their products are available globally in over 20 languages. You will collaborate with Product Localisation Managers and Platform Developers to automate processes, enforce internationalization (i18n) requirements, and elevate their standards to industry benchmarks.

**Key Responsibilities:**

*   **Develop Scripts and Linters:** Ensure string localizability, conduct i18n checks (spelling, pluralization, placeholders, concatenation), and manage developer notes and instructions.
*   **Integrate Localizability Checks:** Automate and test i18n string checks within systems like Bitbucket and Traduki, blocking non-compliant strings.
*   **Filter Non-final Strings:** Identify and exclude non-final strings from localization processes.
*   **Automate Stakeholder Identification:** Streamline the process of identifying and contacting engineers responsible for problematic strings using tools like Sourcegraph and Slack.

**Required Skills:**

*   Proficiency in Typescript, React, ReactIntl, and FormatJS
*   Experience with Kotlin, Java, and Python is a plus
*   Strong background in Internationalization i18n and developing automation tools
*   Familiarity with product development workflows and systems (Jira, Bitbucket, Feature Flag tooling)
*   Ability to collaborate with cross-functional teams and manage stakeholder interactions
*   Experience in Agile methodologies
*   Commitment to writing long-lasting code

**Qualifications:**

*   Bachelor's degree in Computer Science, Software Engineering, or a related field
*   8-9 years of experience in a global software company, focusing on internationalization
*   Proven track record in developing scripts and automation tools

**Why Join?**

*   Be part of a team that makes our client's products accessible worldwide
*   Work in a dynamic, collaborative environment
*   Contribute to cutting-edge internationalization projects

If you are passionate about internationalization and automation, and meet the qualifications, we would love to hear from you!

**Apply Now** to join our client's Internationalization Team and help them make a global impact!

React Developer Freelancer

Job Description

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