Fullstack Developer ( Strapi/NodeJS/React)
Defined.aiPortugal18 hours ago
Full-timeEngineering, Information Technology
Track This Job
Add this job to your tracking list to:
- Monitor application status and updates
- Change status (Applied, Interview, Offer, etc.)
- Add personal notes and comments
- Set reminders for follow-ups
- Track your entire application journey
Save This Job
Add this job to your saved collection to:
- Access easily from your saved jobs dashboard
- Review job details later without searching again
- Compare with other saved opportunities
- Keep a collection of interesting positions
- Receive notifications about saved jobs before they expire
AI-Powered Job Summary
Get a concise overview of key job requirements, responsibilities, and qualifications in seconds.
Pro Tip: Use this feature to quickly decide if a job matches your skills before reading the full description.
Description
Who is Defined.ai? Well, from a technical point of view, we leverage the power of a global crowd to provide some of the world’s biggest companies with the high-quality data they need to power their artificial intelligence. We’re instrumental to the progression and development of artificial intelligence and we couldn’t be prouder or more inspired to be involved in an industry that is changing the world.
From a personal point of view, we’re a group of big thinkers, high achievers and creative problem solvers. We bond over our shared love of software engineering, data science, and strong coffee. We like online gaming, running marathons, and team drinks. We celebrate authenticity and diversity and we’re invested in what we do. Our mission? World domination, obviously!
Who are we looking for?
We are seeking a highly skilled and experienced Full-Stack Engineer to join our dynamic engineering team. The ideal candidate has a strong background in building scalable web applications and possesses deep, hands-on expertise with the Strapi Headless CMS.
You will play a critical role in designing, developing, and scaling our core products. You will take ownership of our content infrastructure, leveraging Strapi to its full potential, while also contributing across our entire technology stack, from front-end interfaces to back-end services. This is a key role with significant impact on our product's architecture and future direction.
Key Responsibilities
Defined.ai offers a platform with multiple data delivery options that leverages machine learning technology and human intelligence to deliver quality-guaranteed training data for AI systems. The platform offers self-service and fully customizable solutions that deliver high-quality project-specific training data, enabling AI products reach market quicker. It is this business model that has allowed Defined.ai to raise a total of $63.6M in funding over 4 rounds. Our value proposition is quality, privacy, speed and scale, covering more than 50 different languages. With strong expertise in speech and natural language processing technologies, we have been serving AI companies and Fortune 500 companies since day one. Defined.ai was founded in Seattle and has offices in Lisbon.
Who is Defined.ai? Well, from a technical point of view, we leverage the power of a global crowd to provide some of the world’s biggest companies with the high-quality data they need to power their artificial intelligence. We’re instrumental to the progression and development of artificial intelligence and we couldn’t be prouder or more inspired to be involved in an industry that is changing the world.
From a personal point of view, we’re a group of big thinkers, high achievers and creative problem solvers. We bond over our shared love of software engineering, data science, and strong coffee. We like online gaming, running marathons, and team drinks. We celebrate authenticity and diversity and we’re invested in what we do. Our mission? World domination, obviously!
Who are we looking for?
We are seeking a highly skilled and experienced Full-Stack Engineer to join our dynamic engineering team. The ideal candidate has a strong background in building scalable web applications and possesses deep, hands-on expertise with the Strapi Headless CMS.
You will play a critical role in designing, developing, and scaling our core products. You will take ownership of our content infrastructure, leveraging Strapi to its full potential, while also contributing across our entire technology stack, from front-end interfaces to back-end services. This is a key role with significant impact on our product's architecture and future direction.
Key Responsibilities
- Architect & Develop: Design, build, and maintain efficient, reusable, and reliable code across the full stack (Node.js, React/Next.js, etc.).
- Lead Strapi Implementation: Take the lead on architecting and managing our headless CMS using Strapi. This includes designing content models, developing custom plugins and policies, managing roles and permissions, and optimizing API performance (REST & GraphQL).
- Front-End Development: Build responsive, high-performance, and accessible user interfaces using modern JavaScript frameworks.
- Back-End Development: Develop robust server-side logic, define and maintain APIs, and integrate with third-party services.
- Mentorship & Code Quality: Mentor junior and mid-level engineers, conduct thorough code reviews, and advocate for software development best practices, including testing, CI/CD, and system observability.
- Collaboration: Work in an agile-driven environment, collaborating closely with product managers, designers, and other engineers to translate product requirements into technical solutions.
- Technical Strategy: Contribute to key architectural decisions and help shape the future of our technology stack.
- Experience: 5+ years of professional experience in full-stack software development.
- Strapi Expertise: Proven, in-depth experience building, customizing, and deploying applications with Strapi v5. Demonstrable ability to create custom plugins, controllers, and services.
- JavaScript/TypeScript: Expert-level proficiency in modern JavaScript and TypeScript.
- Back-End: Strong experience with Node.js and a framework like Express.js or Koa.
- Front-End: High proficiency with a modern front-end framework such as React 19 and Next.js 15, Vue.js, or Svelte.
- Databases: Solid experience with relational databases (PostgreSQL, MySQL) and a good understanding of database design and performance tuning.
- APIs: Expertise in designing, building, and consuming RESTful and/or GraphQL APIs.
- Best Practices: Strong understanding of software design patterns, version control with Git, and automated testing (unit, integration).
- Communication: Excellent verbal and written communication skills in English.
- Experience with GraphQL in a production environment.
- Familiarity with Azure cloud and CI/CD pipelines.
- Experience with containerization technologies like Docker and orchestration with Kubernetes.
- Contributions to open-source projects, especially related to Strapi.
Defined.ai offers a platform with multiple data delivery options that leverages machine learning technology and human intelligence to deliver quality-guaranteed training data for AI systems. The platform offers self-service and fully customizable solutions that deliver high-quality project-specific training data, enabling AI products reach market quicker. It is this business model that has allowed Defined.ai to raise a total of $63.6M in funding over 4 rounds. Our value proposition is quality, privacy, speed and scale, covering more than 50 different languages. With strong expertise in speech and natural language processing technologies, we have been serving AI companies and Fortune 500 companies since day one. Defined.ai was founded in Seattle and has offices in Lisbon.
Key Skills
Ranked by relevanceReady to apply?
Join Defined.ai and take your career to the next level!
Application takes less than 5 minutes