Senior Full-Stack Engineer

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Pixelmatters

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2013

💼 Consulting

🤝 B2B

Consulting • B2B

Pixelmatters is a digital product studio that designs and engineers web and mobile experiences. Since 2014 they deliver product thinking from idea to launch, offering design, engineering, and product services to build web apps, cross-platform mobile apps, and high-performing websites. They emphasize quality-led, scalable products, fuse human creativity with AI, and work with industry leaders and next‑gen disruptors (e. g. , building a Tech Hub in Porto for UJET).

📋 Description

• Your role will focus on designing, implementing, and evolving full-stack architectures using NestJS and React, deployed on top of AWS. • You will participate in technical discussions and help ensure solutions are secure, scalable, and maintainable. • You will be involved in all stages of product development, from front-end implementation and API design to database modeling, infrastructure, and deployment workflows. • Some of your day-to-day tasks will include designing scalable front-end and back-end architectures, developing and optimizing APIs, implementing complex UI components, defining database schemas, improving CI/CD pipelines, reviewing code, and proactively identifying performance, reliability, and security improvements across the system.

🎯 Requirements

• At least 5+ years of experience in software engineering, with strong experience as a Full-Stack Engineer. • Proven expertise with NestJS and React, or similar JavaScript-based frameworks with the ability to make to make architectural decisions across front-end and back-end systems. • Strong understanding of software architecture, system design, and engineering best practices. • Solid experience designing and building RESTful APIs. • Good knowledge of databases, including schema design, performance optimization, and data integrity practices (e.g., PostgreSQL, MySQL, MongoDB, Redis). • Experience optimizing data flow across the stack, including API design, caching strategies, and front-end rendering performance. • Good understanding of front-end architecture patterns, state management, performance optimization, and component-driven development in React. • Proficiency with unit, integration, and end-to-end testing across both front-end and back-end. • Strong experience with Git workflows and collaborative development in multi-branch environments. • Fluency with agentic AI tools (such as Claude Code or Cursor) as a regular part of your development workflow. • Excellent understanding of English and Portuguese (written and spoken).

🏖️ Benefits

• Quality-driven, inspiring, and collaborative work environment. • Competitive salary and benefits, including health insurance. • ClaudeCode account with generous tokens’ budget. • We have a brand new office located at Porto’s downtown while continuing to back our “Remote as default, Office as an option” policy.