Pragmatike

Principal Fullstack Engineer

Pragmatike

full-time

Posted on:

Location Type: Remote

Location: Portugal

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Job Level

Lead

Tech Stack

CloudGraphQLJavaScriptMicroservicesNode.jsReact

About the role

  • Lead the design and development of scalable fullstack applications using React (SPA) and Node.js.
  • Own and drive monolith-to-SPA migration strategies, including incremental decomposition, API design, and frontend re-architecture.
  • Define and enforce frontend and backend architecture, patterns, and best practices.
  • Act as technical lead for the fullstack domain: reviewing designs, mentoring engineers, and setting engineering standards.
  • Collaborate closely with product, DevOps, and platform teams to align application architecture with infrastructure constraints.
  • Design and maintain backend services and APIs (REST/GraphQL) with a focus on performance, reliability, and maintainability.
  • Improve application observability, performance, and resilience.
  • Participate in hiring, onboarding, and growing senior engineering talent.
  • Drive technical decision-making with a long-term platform mindset.

Requirements

  • Senior-level experience (Staff / Principal) as a Fullstack Engineer.
  • Strong expertise in React and modern frontend ecosystems (SPA architecture, state management, performance optimization).
  • Strong experience with Node.js backend development and API design.
  • Proven hands-on experience migrating monolithic applications to SPA or modular architectures.
  • Ability to lead technical initiatives end-to-end.
  • Solid understanding of software architecture, system design, and trade-offs.
  • Experience working in fast-moving, product-driven environments.
  • Excellent communication skills and ability to influence technical direction.
  • Previous experience as Tech lead or project management role is a plus.
  • Experience with microservices or modular backend architectures is a plus.
  • Familiarity with cloud-native environments and modern CI/CD pipelines is a plus.
  • Experience collaborating closely with DevOps or infrastructure teams is a plus.
  • Prior experience in deep-tech, cloud, or infrastructure-heavy products is a plus.
  • Exposure to performance-critical or high-scale systems is a plus.
Benefits
  • Flexible work arrangements
  • Professional development opportunities

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
ReactNode.jsSPA architectureAPI designRESTGraphQLperformance optimizationsoftware architecturesystem designmicroservices
Soft skills
leadershipcommunicationmentoringinfluencecollaborationtechnical decision-makingproblem-solvingteam buildinginitiativeadaptability