Senior Frontend Engineer

Senior Frontend Engineer – Merkle

Merkle, a dentsu company, powers the experience economy by building the next great app, running CRM at scale for global brands, delivering technology architectures that support millions of users, and providing world‑class data, identity, and insights solutions. With over 35 years of experience, we help brands build loyalty, drive growth, and connect meaningfully with their audiences.

Job Description

• Develop new user‑facing features using React / Angular / Vue. js or Vanilla JS.
• Build reusable components and front‑end libraries.
• Translate designs and wireframes into high‑quality code.
• Optimize components for maximum performance across a vast array of web‑capable devices and browsers.
• Design front‑end architectures for component library integration with multiple platforms.

Qualifications

• At least 4 years of Information Technology experience.
• Experience with HTML5 and CSS3 / SCSS.
• Experience with one of the major JS libraries or frameworks (React/Nextjs, Vue/Nuxt).
• Knowledge and experience with full software development lifecycle.
• Experience with Lean / Agile development methodologies.
• Experience with optimizations on an existing component library (APIs, component library, …).
• Hands‑on mentality when needed on bug fixes, backlog, support tickets.
• A good sense for User Experience and Design as a whole.
• Ability to establish good communication flows between stakeholders, designers and developers in the team.
• Knowledge about overall front‑end architecture evaluation and scalability.
• Ability to understand business requirements and translate them into technical requirements.
• Ability to work in diverse teams.
• German and English professional proficiency.

Preferred Qualifications

• Strong proficiency in Java
  Script and Type
  Script, including DOM manipulation and the Java
  Script object model.
• Thorough understanding of React / Angular / Vue. js and its core principles.
• Experience with popular React / Angular / Vue. js workflows (Redux / Ng
  Rx / Vuex).
• Familiarity with newer specifications of ECMAScript.
• Familiarity with RESTful APIs.
• Familiarity with modern front‑end build pipelines and tools.
• Experience with common front‑end development tools such as Babel, Webpack, NPM, etc.
• Experience with implementation and development around motion, a11y, design tokens, theming and more.
• A mindset for benchmarking and optimisation.
• Familiarity with code versioning tools (Git based).
• Experience with Design Systems implementation is most valued.
• Work visa sponsorship is not available. For local documentation (NIF, NISS), please consult Portuguese authorities.

Benefits and Perks

25 vacation days, 2 additional volunteering days, 3 extra wellness days, Mental Health First Aider and Employee Assistance program, health insurance (also possible for family members), cutting‑edge technology & latest IT tools, software‑house environment, agile and flexible working hours, hybrid work system (remote friendly), digital nomad policy, focus on career development, full access to Dentsu Academy, beers, foosball, ping‑pong, free breakfast every second Tuesday of the month, employee discounts, team & company events, referral bonus program.

At dentsu, Diversity, Equity, and Inclusion (DEI) is central to our vision: “To be at the forefront of people‑centered transformations that shape society. ” We cherish the unique talents and perspectives of all individuals, welcoming applicants regardless of gender, gender identity, nationality, religion, ethnicity, cultural background, sexual orientation, age, physical or mental ability. Our hiring decisions are guided by qualifications and role‑specific requirements, ensuring a workplace free from discrimination and harassment.

Location

Lisbon, Portugal

Employment Details

Type: Full time

Contract: Permanent

Referral Program

Referrals increase your chances of interviewing at Merkle by 2x.

Senior Level, Employment type, Job function, Industries

Seniority level: Mid‑Senior level

Employment type: Full‑time

Job function: Engineering and Information Technology

Industries: Business Consulting and Services