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Senior Frontend Developer

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Onsite

Senior Frontend Developer

Affinity

Senior Frontend Developer

Skills

ReactTypescriptTesting & QAGraphQLKubernetesJavascript

1 month ago

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Important information


Contract type:

Permanent

Location:

Brazil

Work mode:

Onsite

Published on:

19 September 2026

What they need


A Job? Or a Lifetime Experience? Start Yours Here!

We are a Portuguese technology consulting company with a strong outward look to the rest of Europe. We have 12 years of experience in the market and reached the status of "large company" in 2018. We now have more than 400 associates and we keep growing, with offices in Lisbon, Porto, and Leiria, as well as projects in more than 20 countries. Our company is part of the national top 10, with a growth of 250% in the last years.

Work-life balance is part of our DNA. We focus on win-win-win relationships, defining every moment of interaction as an experience with unique conditions. Working with Affinity is a "Lifetime Experience" where you will have the opportunity to demonstrate all your potential and to be successful on every level.

#welcometoyourfuture

What you need to have

  • 3–5 yrs of experience in frontend development, with a strong focus on React, TypeScript and modern JavaScript (ES6+).
  • Solid understanding of Micro Frontends architecture and component-driven development.
  • Experience building and maintaining reusable UI component libraries with Mantine UI and Storybook.
  • Knowledge of accessibility standards (WCAG, ARIA) and responsive design best practices.
  • Experience optimizing applications for performance, with observability tools such as Jaeger.
  • Experience integrating RESTful APIs and GraphQL in distributed environments.
  • Experience deploying frontend applications in Kubernetes, using CI/CD pipelines and ArgoCD.
  • Ability to contribute to architecture decisions, conduct code reviews and mentor other engineers.
  • Experience working in Agile/Scrum teams, collaborating closely with designers, PMs and QA.

What we expect from you

  • Will to exceed expectations (your own and the ones defined by Affinity);
  • Exceptional skills and the will to acquire more;
  • Good people skills (not just in terms of technology, language, and platforms), team spirit, and pleasant disposition;
  • Autonomy, proactivity, and focus (even under pressure);
  • Obsession for doing things right, and ability to prioritize;
  • Versatility (you can be a fan of BYOD or not);
  • Ability to innovate and evolve in a market in constant mutation.

What will encourage you

  • Being part of a company that has a disruptive action in the technology market;
  • Being part of a technology focused on relationships, simplicity, and efficiency;
  • Accessing a generative career directly proportional to your performance and interest;
  • The real possibility of being part of our company staff.

Do you think you're the one we are looking for?

Let's chat! Send your application and take a look at:

https://www.instagram.com/affinityportugal/ https://www.linkedin.com/company/2701281/admin/ https://www.facebook.com/affinity.portugal/ https://twitter.com/WithAffinity

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