Senior Front-End Developer ReactJS / TypeScript (M/F) - CDI

Collective.workEssonneEURESpublished 09/23/2026
Must-have:TypeScriptJavaHTMLCSSReactGitFrontendBackendCI/CDSenior
Machine translation — original language: French.Show original

Salary: €52,000 to €70,000 gross annual

Senior Front-End Developer ReactJS / TypeScript (M/F)

Paris Saclay (91)

Remote work: 2 days per week

The mission

As part of a project to develop telecom transmission systems, we are recruiting a Senior Front-End Developer ReactJS / TypeScript.

You will work on the design and development of the user interface for a transmission terminal, within a complex industrial environment. The Front-End application is primarily based on ReactJS and TypeScript and integrates complex data visualization challenges: network diagrams, curves, tables, etc.

You will notably be responsible for:

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Analyzing needs and evaluating technical impacts and development workloads

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Studying UI/UX specifications and reviewing system specifications

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Designing mockups and interactive prototypes with Figma

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Developing new features in ReactJS / TypeScript

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Designing reusable and maintainable Front-End components

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Ensuring source code configuration management

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Performing unit and pre-integration tests

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Optimizing performance and exchanges with the Back-End

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Analyzing and correcting anomalies during testing phases

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Ensuring fixes and deliveries and following tickets until resolution

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Participating in user documentation and technical specifications for graphic components

Mission strengths

  • Project in a complex telecom / industrial environment
  • Modern Front-End development in ReactJS / TypeScript
  • Strong UI/UX dimension and complex data visualization
  • Design and prototyping with Figma
  • Working on modern Front-End architectures
  • CI/CD environment and software quality
  • Involvement in the entire development cycle
  • Mission requiring autonomy, technical expertise, and creativity
  • 2 days of remote work per week

Could it be you?

With higher education in computer science or software development, you ideally have a minimum of 5 years of experience in Front-End development, including at least 3 years in React / TypeScript in a production environment.

You demonstrate solid skills in:

  • ReactJS / TypeScript
  • HTML / CSS
  • React ecosystem: Redux / Context API
  • Figma: mockup and prototyping
  • Modern Front-End architectures: reusable components, React Hooks
  • gRPC
  • Continuous integration
  • GitLab / TeamCity / Artifactory / SonarQube

Skills in the following are also appreciated:

  • Knowledge of Java
  • Experience in complex data visualization: graphs, curves, tables
  • Experience in industrial applications: telecom, energy, transport, defense
  • Knowledge of the telecom field and/or network management

You are proficient in English, both written and spoken, and are recognized for your autonomy, creativity, curiosity, rigor, team spirit, and sense of quality.

Remuneration

€52,000 to €65,000 gross annual

Why join Triskell?

  • Environmental performance: Our HelloCarbo assessment reveals a carbon footprint lower than the average in our sector.
  • Fulfillment at work: Certified Happy at Work with a Platinum rating (485.5/500) and a recommendation rate of over 93% with a 100% response rate, we prioritize the well-being and fulfillment of our employees.
  • Diversity and inclusion: By signing the Charte Diversité, we go beyond legal standards to foster an inclusive environment.
  • Attractive salary package.
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