CrawlJobs Logo
Assessfirst Logo Assessfirst · IT - Software Development

Senior Frontend Developer

France, Paris · Job Posted January 12, 2026
Apply Position
Job Link Share

Job Description

As a Front End Developer, you will be responsible for designing, developing, and maintaining the client-side components, user interfaces, and user experience of our software applications. This role requires deep expertise in front-end technologies and the ability to build performant, accessible, and scalable user interfaces while collaborating effectively within an agile team environment. You will work closely with Engineering Managers, Product Managers, Back End Developers, Designers, and other team members to implement features, improve application architecture, and ensure high-quality deliverables that meet both technical and business requirements. You will be part of a cross-functional squad and will contribute to technical decisions while maintaining high standards of code quality, performance, accessibility, and user experience.

Job Responsibility

  • Design, develop, and maintain scalable React applications and reusable component libraries
  • Build responsive and accessible user interfaces following design systems and UI/UX best practices
  • Write clean, maintainable, and well-tested code following team standards and best practices
  • Participate in code reviews and provide constructive feedback to team members
  • Debug production issues and implement robust solutions
  • Contribute to technical documentation and architecture decisions
  • Integrate RESTful APIs and GraphQL endpoints into the front-end application
  • Optimize application performance, bundle size, and loading times
  • Implement state management solutions and client-side caching strategies
  • Participate in agile ceremonies and technical planning sessions
  • Actively participate within an autonomous mission team (PM, Designer, Engineering manager, Back End Developers) to clarify priorities and user needs
  • Contribute to technical discussions and architecture decisions
  • Collaborate with designers to implement pixel-perfect, accessible interfaces
  • Work with back-end developers to define API contracts and data structures
  • Participate in squad rituals and team meetings
  • Handle support requests and bug fixes within agreed SLAs
  • Write unit tests, integration tests, and end-to-end tests following TDD principles
  • Collaborate with QA team to ensure comprehensive test coverage
  • Participate in pair programming sessions with team members
  • Monitor application performance, Core Web Vitals, and implement improvements
  • Follow accessibility standards (WCAG) and ensure inclusive user experiences
  • Contribute to continuous integration and deployment processes
  • Implement error tracking, monitoring, and analytics
  • Ensure cross-browser compatibility and responsive design
  • Optimize for performance: code splitting, lazy loading, image optimization

Requirements

  • 7+ years of professional front-end development experience
  • Strong expertise in modern web application architecture and React ecosystem
  • Proficient in JavaScript/TypeScript, React (Hooks, Context, Router), and modern ES6+ features
  • Experienced with state management (Redux, Zustand, TanStack Query) and API integration (REST, GraphQL)
  • Skilled in CSS (Modules, Styled Components, Tailwind), build tools (Webpack, Vite), and testing (Jest, React Testing Library, Playwright, Cypress)
  • Knowledgeable in performance optimization, accessibility standards (WCAG, ARIA), responsive design, and design systems (Storybook)
  • Comfortable with Git, CI/CD practices, and modern development workflows
  • Excellent problem-solving abilities with strong attention to detail
  • Effective communication in French and English, thriving in remote environments
  • Collaborative team player with product thinking and user-centric mindset
  • Proactive in suggesting improvements with a focus on maintainable, well-documented code
  • Passionate about user experience, accessibility, and inclusive design

What we offer

  • Four-day week
  • Professional development plan
  • Sick child leave
  • Mental health benefits
  • Employee Resource Groups (ERG)
Assessfirst - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Senior Frontend Developer

8 matching positions

New

Senior Frontend Developer

We are seeking an experienced Frontend Developer with over 9 years of hands-on e...
Location
Location
India , Bengaluru, Karnataka
Salary
Salary:
Not provided
Remotestar
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • React.js: Extensive experience in building and deploying front-end services
  • Kafka: Skilled in implementing real-time data pipelines and messaging systems
  • Splunk: Expertise in monitoring, logging, and troubleshooting application performance
  • GitLab: Strong knowledge of version control systems and CI/CD pipelines
  • REST API Services: Proficient in designing and consuming RESTful web services
  • Front-End Technologies: Advanced skills in Javascript, React.js, Node.js, Next.js, HTML, CSS, and Styled Components
  • Team Leadership: Proven experience in leading, mentoring, and managing development teams
  • Problem Solving: Strong analytical and problem-solving skills
  • Communication: Excellent verbal and written communication skills
  • Bachelor's degree in Computer Science, Engineering, or related field (Master's preferred)
Job Responsibility
Job Responsibility
  • Lead and mentor a team of developers, fostering a collaborative and high-performance environment
  • Design, develop, and maintain scalable web applications using a wide range of technologies
  • Develop and integrate REST API services to ensure seamless communication between front-end and back-end systems
  • Implement and maintain front-end interfaces using Javascript , React.js, Node.js, Next.js, HTML, CSS, and Styled Components
  • Manage real-time data processing and streaming with Kafka
  • Monitor and troubleshoot application issues using Splunk
  • Utilize GitLab for version control and CI/CD processes
  • Collaborate with cross-functional teams to define, design, and ship new features
  • Ensure code quality, maintainability, and best practices through code reviews and continuous improvement
  • Fulltime
Read More
Arrow Right

Senior Frontend Developer

Acronis is a global leader in cyber protection, delivering AI-powered protection...
Location
Location
Bulgaria
Salary
Salary:
Not provided
vuejs.org Logo
Vue
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of experience in frontend development
  • Solid knowledge of HTML, CSS, JavaScript, Bootstrap, and Vue.js
  • Experience building responsive, modern web interfaces
  • Understanding of RBAC concepts and role-based UI logic
  • Experience working with REST APIs and backend services
  • Familiarity with SSO, OAuth2, and SAML concepts
  • Experience with Git and modern development workflows
  • Proactive mindset and motivation to grow in enterprise platforms
Job Responsibility
Job Responsibility
  • Develop and maintain UI components using HTML, CSS, JavaScript, and Vue.js
  • Implement responsive layouts aligned with Material Design and Acronis UI guidelines
  • Integrate frontend components with backend services and Salesforce APIs
  • Implement role-based UI visibility using RBAC rules
  • Support SSO and authentication flows (OAuth2, SAML) in the frontend
  • Fix UI bugs, improve usability, and optimize performance
  • Collaborate with designers and senior engineers during implementation
  • Participate in code reviews, sprint planning, and delivery ceremonies
  • Work with Git, Jira, and CI/CD pipelines as part of daily development
  • Own assigned features end-to-end, from implementation to production support
  • Fulltime
Read More
Arrow Right

Senior Frontend Developer

As a Senior Angular Developer in the e-Commerce & digital services area, you wil...
Location
Location
Egypt
Salary
Salary:
Not provided
coca-colahellenic.com Logo
Coca-Cola HBC
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • University Degree in computer science or equivalent
  • Min 5+ years of experience in working as Angular Developer preferably in the e-Commerce area B2B or B2C
  • Strong skill base in web development technologies including: Designing, building, and testing AngularJS/ReactJS/Vue.js/Node.JS based web solutions
  • Very good knowledge of HTML5, CSS3, and its pre-processor o Good knowledge of web accessibility and SEO
  • Good understanding of Google Tag Manager
  • Experience with SAP Commerce JSP-based accelerator is a plus
  • Strong concepts & knowledge of object-oriented programming, data structures, algorithms and design patterns
  • FMCG Commercial business process awareness will be considered as an advantage
  • Proven Experience in Agile Scrum development practices
  • Proven ability to work in a multi-cultural environment
Job Responsibility
Job Responsibility
  • Design and implement high-quality solutions
  • Work very closely with Platform Architect and Tech Lead on Performance Improvements opportunities like Lazy Loading and Caching
  • Participate in troubleshooting, technical analyses and code review process within the team
  • Collaborate with B2B DevOps Team especially with Product Manager, Tech Lead, Platform Architect on analyzing business requirements and providing sequence and effort/Story Points estimation
  • Responsible to document the development specification in Azure DevOps and all related artifacts to ensure proper components and solution build
  • Responsible to apply, adhere to CCH code management & propose improvement to best practices
  • Take responsibility on code quality execution and on-time completion of tasks
  • Support the success and development of others in the team
What we offer
What we offer
  • Coaching and mentoring programs
  • Development opportunities
  • Equal opportunity employer
  • IT Equipment
  • Learning programs
  • Work with iconic brands
  • Supportive team
  • Volunteering Opportunities
Read More
Arrow Right

Senior Frontend Developer

We help our customers achieve the full picture of their industries. We also stri...
Location
Location
Canada , Toronto
Salary
Salary:
120000.00 - 130000.00 CAD / Year
lumerate.com Logo
Lumerate
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years with React in production, with deep knowledge of hooks, Context, component composition patterns (compound components, render props, forwardRef/useImperativeHandle)
  • Experience working within a server-rendered framework (Rails, Django, Laravel, or similar)
  • Strong CSS/SCSS skills — you can architect a design token system, write maintainable component styles, and make sound decisions about when to use utility classes vs. semantic SCSS
  • Testing expertise — Jest, React Testing Library, and ideally Playwright or Cypress. You test behavior, not implementation details
  • JavaScript fundamentals — ES modules, async/await, Proxy, private class methods, build tooling (Webpack/Vite). Someone who is detail oriented
Job Responsibility
Job Responsibility
  • Frontend architecture — React component patterns, state management strategy, styling conventions, and build tooling within a Rails monolith
  • Component library (LDS) — maintaining and extending our internal design system built on Supernova design tokens and SCSS
  • Migration strategy — incrementally moving legacy code (Reflux stores, createReactClass, jQuery) to modern React (hooks, Context, functional components) without large rewrites but pragmatic decisions to make small meaningful changes
  • Testing strategy — a three-tier JS testing approach using Jest + React Testing Library (unit/integration) and Playwright (UI/visual regression)
  • Frontend standards — defining and enforcing patterns for component architecture, styling, data fetching, and code organization
  • Developer experience — Storybook, module aliases, build performance, and tooling that helps the team ship faster
What we offer
What we offer
  • Help shape the future of a bootstrapped and profitable Canadian tech company
  • Earn yourself some equity (employee options make up 20% of the value of the company at all times)
  • Be a part of a tightly-knit team with a thriving hybrid culture
  • Three weeks paid vacation + paid statutory holidays
  • If based in Toronto, enjoy a dedicated work space at our open-concept office (located in the Junction Triangle) and enjoy the benefits of in-person interactions with colleagues 3 days per week
  • Upgrade your home office setup with our remote or hybrid stipend
  • Join us for our annual all-company retreat (past destinations include Bermuda, Iceland, Costa Rica, and Portugal)
  • Earn additional paid vacation days with continued learning ($1000 annual stipend for courses and classes)
  • Take part in our Employee Giving Program (you choose the causes and the company provides the funds)
  • Basic and extended health and dental benefits
  • Fulltime
Read More
Arrow Right

Senior Frontend Developer

At Storylane, we are on a mission to let companies share product demos with buye...
Location
Location
France
Salary
Salary:
4000.00 - 10000.00 USD / Month
helpcare.ai Logo
Helpcare AI
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Have a strong background in computer science with a degree in CS or a related field
  • Successful startup exp is preferred
  • Minimum 4+ years of Frontend Development experience
  • Proficient with React and ideally NextJs
  • Solid understanding of how to deliver complex frontend applications considering performance, design and scale
  • Solid understanding of application performance, and designing low latency, high-speed web applications
  • Solid understanding of HTML, CSS, and Javascript ES6
  • Attention to detail when implementing UI mockups made by our designers
  • Experience in TDD techniques & Continuous Integration
  • Self-organized who can take ownership and can communicate well in English
Job Responsibility
Job Responsibility
  • Work with other engineering team members to develop our no-code demo editor
  • Be go-to-person for all things frontend
  • Keep product-hat on
What we offer
What we offer
  • Good compensation and Equity
  • Fulltime
Read More
Arrow Right

Senior Frontend Developer

Location
Location
Salary
Salary:
Not provided
asset-technology.com Logo
Asset Technology Group
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 4–5 years of experience
  • Experience using software tools technologies
  • Frontend: Angular, React, TypeScript, JavaScript, HTML5, CSS, Responsive Design
Job Responsibility
Job Responsibility
  • Develops, verifies requirements and analysis documents and ensures their quality and accurate coverage of the project scope
  • Explores different technical topics and tools to assess the feasibility of the given requirements
  • Develops, reviews, and validates design and design documents (Architecture, database and detailed design) to ensure their compliance with the project requirements
  • Develops and presents Software POC and prototypes whenever required for project success
  • Performs the programming activities related to the development of Software products, systems, and projects
  • Research and examines Software alternatives, different technical topics and tools to assess and explore the feasibility of a given requirement
  • Conducts unit testing for the developed code, troubleshoots, debugs and fixes any issues
  • Reviews defects reports, checks the root cause for different types of defects, and ensures proper resolution
  • Reports accurate tasks status in timely manner to direct supervisor
Read More
Arrow Right

Senior Frontend Developer

Location
Location
Poland , Warsaw
Salary
Salary:
Not provided
fireart.studio Logo
Fireart Studio
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 4–5+ years of experience in frontend development
  • Strong experience with React and Next.js ecosystem
  • Solid knowledge of TypeScript, modern JavaScript (ES6+), and frontend architecture patterns
  • Experience with Redux (or similar state management solutions)
  • Experience integrating REST APIs using Axios or similar tools
  • Strong understanding of responsive design, cross-browser compatibility, and web performance optimization
  • Familiarity with Git workflows, CI/CD pipelines, and modern development practices
  • Ability to work independently and communicate proactively in a remote team
  • Good English communication skills (written and verbal)
Job Responsibility
Job Responsibility
  • Build scalable, high-performance web applications using Next.js and modern frontend technologies
  • Implement responsive, accessible, and user-friendly interfaces based on design specifications
  • Manage application state using Redux and integrate APIs using Axios
  • Collaborate closely with backend developers, designers, and product managers to deliver high-quality user experiences
  • Optimize application performance, improve Core Web Vitals, and refactor legacy frontend code
  • Write clean, maintainable, and well-typed code using TypeScript
  • Participate in code reviews, technical discussions, and release planning
What we offer
What we offer
  • 21 paid days off per year
  • Health insurance
  • Learning resources
  • Competitive compensation depending on experience and skills
  • A friendly team of like-minded people
  • Opportunities for learning and development
  • Compensation for sick leaves
  • 21 working days paid vacation + all Poland national holidays
  • Corporate events and activities
  • Private medical care
Read More
Arrow Right

Senior Frontend Developer

Are you a frontend developer who loves building fast, clean, and user-friendly w...
Location
Location
India
Salary
Salary:
Not provided
brainstormforce.com Logo
Brainstorm Force
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 2-4 years of frontend experience with React.js, Next.js, and JavaScript (ES6+)
  • Advanced knowledge of HTML5, CSS3/SASS, Tailwind CSS, and responsive UI
  • Deep understanding of component-driven design, state management, and REST API integration
  • Familiar with automated testing tools like Jest, Playwright, or Cypress
  • Sharp eye for UI/UX detail and an obsession with frontend performance
  • Strong problem-solving, debugging, and refactoring skills
  • Ability to work independently but also thrive in team discussions
Job Responsibility
Job Responsibility
  • Contributing to frontend feature development with a strong focus on quality and performance
  • Collaborating closely with the Lead Developer and other team members
  • Building slick, responsive, reusable components with React.js, Next.js, and Tailwind
  • Optimizing applications for performance, scalability, and UX
  • Troubleshooting and resolving complex bugs
  • Pairing with backend engineers and designers to implement full-stack features
  • Testing ideas quickly, giving feedback on UX, and improving what’s already built
  • Refactoring older code as the product scales and always improving what you touch
  • Sharing insights, patterns, and discoveries with the team through demos, docs, or Slack banter
What we offer
What we offer
  • Work from anywhere
  • An opportunity to learn and grow in a team of talented developers
  • We don’t micro-manage
  • Work on the latest technologies
  • Flexible work environment
  • Fun atmosphere
  • Challenging tasks
  • Limitless ability to grow within the company
  • We promote entrepreneurial thinking and action
  • Learn something new every day
  • Fulltime
Read More
Arrow Right