React Engineer
About the job
- A bachelor's degree in Systems Engineering, Computer Science, or equivalent is required.
- Excellent understanding of React.js and its core principles is required.
- Hands-on knowledge of HTML5, CSS frameworks, JavaScript, and TypeScript is required.
- Hands-on experience with Object Oriented JavaScript (OOJS) and practical use of JavaScript to build complex interactive experiences is required.
- A minimum of 3 years of experience leading frontend development teams is required.
- A good understanding of integrating REST APIs and microservices into frontend applications is required.
- Hands-on experience with a DevOps pipeline and the ability to adjust build and deployment pipelines as needed are required.
- Two years of experience with unit testing is required.
- Thorough experience working on SaaS and iPaaS applications is required.
- Upper-intermediate English proficiency is required.
- Develop and implement front-end solutions using React.js, ensuring high performance and maintainability.
- Work on the design and development of the Project & Portfolio Management (PPM) platform.
- Contribute to creating scalable, reusable, and efficient React components and libraries.
- Collaborate with business teams, designers, and back-end developers to define user interfaces and integrate the front end with back-end systems.
- Provide guidance and support to internal teams using the PPM platform to manage and execute projects.
- Lead the development and design of the UX/UI for a wide variety of applications used daily by tens of thousands of internal users.
- Review and support UX/UI design and implementation, ensuring high standards and a seamless user experience.
- Design intuitive, accessible, and responsive interfaces that meet user needs.
- Support ongoing UX/UI improvements so the platform remains user-friendly and effective for diverse business and client teams.
- Ensure the PPM platform performs efficiently, handles large-scale project data, and provides a seamless user experience.
- Continuously monitor and optimize the platform for performance, scalability, and usability.
- Experience performing unit testing with Jest is advantageous.
- Experience with GraphQL is desirable.
- Experience building mobile-responsive applications is desirable.
About the company
Publicis Groupe runs advertising, media buying and digital transformation services for companies that want to reach consumers, coordinate campaigns and improve their business systems. Its agency network includes creative and media specialists, while Publicis Sapient builds and modernizes the technology behind clients' operations. Epsilon adds customer data and marketing technology that connect brands with audiences and measure campaign results. Clients pay for consulting, campaign creation and execution, with production and media costs billed through alongside the group's service work. Founded in 1926, Publicis Groupe is headquartered in Paris, France.
Company Size
10,001+
Company Stage
IPO
Headquarters
Paris, France
Founded
1926
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Simplify's Take
What believers are saying
- Growth is holding up: July 2026 results showed 4.7% organic net revenue growth in the first half.
- Data work is expanding: Publicis agreed in May 2026 to buy LiveRamp and its data collaboration business.
- International experience has a formal route: WorkYourWorld gives approved Publicis employees up to six weeks abroad annually.
What critics are saying
- Accounts are vulnerable: Publicis' top 100 clients generated 58% of 2025 revenue, with short-notice contract exits.
- Employees face continuing reorganization: July 2026 results reported €76 million restructuring costs, up from €63 million.
- Expansion adds interest costs: September 2026 LiveRamp financing priced €500 million of bonds with a 4.125% coupon.
What makes Publicis Groupe unique
- Agency collaboration has financial backing: Publicis unifies profit accounts and gives each global client one accountable leader.
- Epsilon connects ads to purchases: its CORE ID uses transaction data rather than third-party cookies.
- Leadership continuity is unusual: Arthur Sadoun is only Publicis Groupe's third CEO.
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Company News
Publicis refreshes its €2 billion sustainability-linked revolving credit facility with extended ma
Publicis to acquire LiveRamp to accelerate data co-creation for smarter agents
Publicis Groupe has agreed to acquire LiveRamp, a global data collaboration platform, for $2.2 billion in an all-cash transaction at $38.50 per share, representing a 29.8% premium to LiveRamp's closing price on 15 May 2026. LiveRamp connects over 25,000 publisher domains and 500+ technology partners across 14 markets, enabling brands, retailers and media platforms to unify and activate data securely. The company has 1,300 employees and delivered a trailing five-year compound annual growth rate of 13%. The acquisition will position Publicis as a leader in data co-creation, enabling clients to build more intelligent AI agents by combining multiple data sources securely. Publicis has raised its 2027-2028 growth objectives to 7-8% for net revenue and 8-10% for headline earnings per share. The transaction is expected to close before year-end 2026, subject to regulatory and shareholder approvals.
Mayo-born entrepreneur Niall McGarry has sold Fabric Social to Publicis Groupe UK, a division of the world's largest communications group. The company reported revenues of £13 million (€14.9 million) in the 12 months to March 2026 and employed 110 people at the time of sale. Fabric Social was profitable and served blue-chip clients in Britain including Sky, Subway EMEA, Currys, Morrisons, Just Eat, Autotrader, Holland & Barrett and Vodafone. The company also operated a smaller Irish business as a retained social agency. Financial terms of the deal were not disclosed.
Publicis Groupe has acquired sports marketing agency 160over90 from WME Group for an undisclosed sum, positioning sports as its "next big bet" for growth. The deal is pending regulatory approval. Founded in 2001, 160over90 employs over 670 people across the US, UK, EMEA and APAC, working with global brands on major sporting events including the Super Bowl, Olympics and World Cup. The agency will join Publicis Sports, led by CEO Suzy Deering. Publicis is forming a partnership with WME to enable collaborations between its agencies and WME's talent roster. The acquisition follows Publicis' purchases of sports agencies Adopt and Bespoke in 2025 and creator marketing agency Influential in 2024. Publicis reported $17.18 billion in net revenue in 2025, up 5.6% year-on-year.