SR Frontend TypeScript/React Developer

At Zallpy, technology is created by curious, collaborative people who care about doing things well. If you enjoy environments where there is room to ask questions, test ideas, learn, and grow together, this opportunity is for you! 💚

We are looking for someone to join a team that thinks big, works with attention to detail, values partnership in everyday work, and shares responsibility. We believe in autonomy, the exchange of different experiences, and building solutions together.

Here, growing means sharing knowledge, respecting different ways of thinking, and building relationships based on trust while delivering high-quality technology.

If this way of working resonates with you, come join us.

What you will do:

• Develop and evolve the API Studio web application using TypeScript, React, and Node.js.
• Build and maintain VS Code extensions, including commands, views, webviews, and integration with the editor's APIs.
• Create rich, interactive UI for navigating, querying, and visualizing complex API models, both in the browser and inside VS Code.
• Work in a TypeScript monorepo managed with Yarn 2+ (Berry), keeping packages, shared libraries, and builds well organized.
• Write and maintain automated tests (unit, integration, and end-to-end).
• Collaborate with the language and backend teams to integrate the tooling that processes interface definitions.
• Care about developer experience: clarity, performance, and usability of every screen and command.
• Take part in technical decisions, code reviews, and continuous improvements to architecture and quality.

What we are looking for:

• Solid, senior-level experience with TypeScript.
• Strong experience building complex applications with React.
• Experience with Node.js and its ecosystem.
• Hands-on experience with monorepos using Yarn 2+ (Berry) or equivalent setups.
• Experience developing VS Code extensions.
• Good knowledge of Git and engineering best practices: code review, continuous integration, and automated testing.
• Advanced English for daily communication with an international client.

Nice to have:

• Playwright and Jest or Vitest.
• Monaco Editor and VS Code webviews.
• A published VS Code extension (Marketplace or Open VSX).
• TypeScript monorepos using project references.
• Experience with developer tools, IDEs, or Language Server Protocol (LSP).
• A strong sense of UX and attention to interface details.

Where you will work:

• This is a 100% remote position.

Hiring models:

• CLT.
• Cooperative.

Benefits of being a Zallper:

🍽 Meal/Food Allowance
Caju multi-benefit card (credit format), offering flexibility for everyday needs. (CLT only) *

🏥 Health Plan – Unimed
No waiting period or copayment for the holder. Possibility to include dependents (children, spouse, or stepchildren) with copayment. (CLT only) *

🦷 Dental Plan – Uniodonto
Affordable options to include dependents. (CLT only) *

💪 Wellhub
Access to gyms, physical activities, and wellness programs.

🧘 Zenklub
For CLT: Two free sessions per month and special rates for additional sessions.
For Cooperative/Contractor: Special rates for sessions.

🛡 Life Insurance
More security for you and your family. (CLT only) *

👶 Childcare Allowance
Financial support for Zallpers with children from 4 months to 6 years old, according to internal policy. (CLT only) *

🎁 Baby Zallpy
A special gift to celebrate the arrival of new Zallpy babies.

👥 Business Partner Support
Close and human-centered support from our People & Culture team throughout your journey at Zallpy.

🌍 Volunteer Internal Communities
Diversity, Sports & Movement, and Technology.

🎓 Educational Partnerships
Discounts on undergraduate and graduate programs, professional courses, and language schools.

✈️ Experiences & Development
Participation in events, workshops, trips, and team-building activities.

💼 Referral Program
Refer talents to Zallpy and receive bonuses from R$2,500 to R$5,000.

* Contractor / PJ: For these hiring models, the benefits above apply except for those marked with an asterisk (*), which are exclusive to CLT. In addition, we offer dedicated platforms to manage contractors, ensuring organization, transparency, and a structured experience throughout the entire journey. 😉

Job ID: 41540f