Senior Full Stack Software Engineer

Grupo Protege

Senior Engineer building web applications for Protege's AI training data platform. Leading design and development initiatives using TypeScript and Next.js in a remote team environment.

Posted 8/1/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building production web applications with a focus on user-facing features, complex workflows, and data-heavy interfaces. Proficient in TypeScript, React, and backend fundamentals, ensuring high-quality design and performance.

Highest-signal resume keywords

TypeScript ExpertiseReact DevelopmentNext.js FrameworkAPI DesignUser-Centric Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Web Application DevelopmentData-Heavy Interface DesignStreaming PlaybackPerformance OptimizationTesting and Quality AssurancePostgres Database ManagementAuth and Permission ModelingCloud Services (AWS)UI/UX DesignReusable Component Development

Soft Skills

Attention to DetailCuriosityProactivityStrong Design JudgmentCollaboration

Industry Keywords

User-Facing FeaturesComplex WorkflowsData ManagementSensitive Data HandlingDesign Consistency

Tech Stack

Tools & technologies

AWSCloudJavaScriptNext.jsPostgresReactTypeScript

About the role

Key responsibilities & impact

Lead the team's larger initiatives from discovery through design, build, and rollout, such as search previews at catalog scale or the presentation of a new content modality
Talk directly with the partnerships, solutions, and sales teams who use what you build; understand the business context behind each request and bring that view back to the team's priorities
Design complex workflows and data-heavy interfaces yourself: information hierarchy, interaction patterns, and every state a screen can be in
Build the workflows our partnerships and solutions teams use every day: sample creation, customer access management, and delivery exports
Build the customer-facing experience for browsing, streaming, and evaluating multimodal samples
Make large multimodal datasets feel instant in a browser: streaming playback, previews, lazy loading, and export at scale
Build UI on top of embedding-based search so users can find the right clips within catalogs of millions
Decide what runs client-side, in a route handler, or in a backend service, and work with our data teams when the answer crosses squad boundaries
Handle sensitive data correctly: scoped access, secure share links, and PHI-aware routes
Set the bar for quality on the squad: testing, performance, design consistency, and UX detail
Lead design discussions, review code, and unblock other engineers
Turn repeated one-off UI and workflow patterns into reusable components in our shared design system

Requirements

What you’ll need

5+ years building production web applications that real users depend on
Deep TypeScript and React experience, with Next.js or a comparable full-stack framework in production
You've shipped user-facing features end to end: UI, API, data model, and tests
Strong design judgment: you can design a complex workflow yourself, hold a bar for visual and interaction detail, and articulate why one UI decision beats another
Solid backend fundamentals: API design, Postgres, auth and permission modeling, and cloud services (we use AWS)
You've built data-heavy or media-heavy interfaces and know how to keep them fast: streaming, pagination, caching, and knowing what not to load
You've worked directly with the users of what you build and let that shape what you shipped
Attention to detail without losing speed, and a bias to action
Curious and proactive.

Benefits

Comp & perks

Health insurance coverage (exact offerings are not specified)
Flexible work arrangements
Paid time off