Lead Fullstack Engineer (React+Next.js)

N-iX
La Unión, Spain
3 months ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience required
8 years minimum
Working hours
Shift work
Job source

Tech stack

XML Schema Agile Methodology Automation of Tests Microsoft Azure Software as a Service Continuous Integration Programming Tools JSON Node.Js Zero Trust Network Access Next.js Software Engineering
+7 more
TypeScript Test-Driven Development (TDD) ReactJS Backend Material UI Front End Software Development Restful APIs

Job description

Our Client is building a SaaS platform used globally to streamline business-critical workflows and transform document-driven processes into intelligent, automated systems. Their platform powers agreement lifecycle experiences at a massive scale, serving millions of organizations across highly regulated and enterprise environments.

The team develops a unified, widget-based frontend platform that standardizes how product teams deliver modern, high-performance user interfaces. This platform provides a shared shell, micro-frontend architecture, and automated CI/CD pipelines that distribute versioned UI components globally with high reliability.

Part of the work includes supporting secure, compliance-heavy environments designed for federal-grade workloads. Engineers design systems that are secure by default, privacy-aware, and built on zero-trust principles. The role involves solving advanced platform challenges such as resilient rollouts, deterministic builds, telemetry without exposing sensitive data, and high-availability architecture in constrained environments.

This is an opportunity to shape platform standards, performance practices, and developer tooling in a system operating at meaningful scale.

Responsibilities Design and implement reusable frontend components within a micro-frontend architecture. Build and maintain a shared UI platform that enables consistent user experiences across products. Develop scalable CI/CD pipelines that publish versioned frontend artifacts for global delivery. Contribute to secure-by-default engineering patterns aligned with compliance requirements. Optimize performance, observability, and reliability across distributed frontend systems. Collaborate with cross-functional teams to define platform standards and engineering best practices. Integrate frontend systems with RESTful and/or gRPC backend services. Support high-availability deployments in regulated or restricted environments.

Requirements

Do you have experience in gRPC?, 8+ years of professional software development experience. Strong proficiency in TypeScript and React. Experience building reusable, production-grade frontend component libraries. Experience with frontend testing frameworks and test automation. Solid experience with Next.js, Node.js, and Express. Proven track record delivering SaaS products. Preferred Qualifications Experience across the full software development lifecycle. Familiarity with schema modeling (e.g., JSON Schema or XML Schema). Experience with Agile and test-driven development methodologies. Experience with Azure DevOps or comparable CI/CD tooling. Knowledge of micro-frontend frameworks. Experience building or consuming RESTful or gRPC services. Strong written communication skills in asynchronous environments. Passion for platform engineering and high-quality software craftsmanship.

Benefits & conditions

Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits

Apply for this position

This job is hosted externally. Click below to view the full posting and apply.

Apply on indeed.com

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

3:47 min

Exploring JSON, CBOR, and JOSE for data serialization

Aaron Russell · LIVE

1:52 min

Structuring and scaling the backend engineering team

Stefan Lingler Stefan Lingler +1 · Coffee With Developers

1:21 min

Exploring the target application for front end tests

Anna Mcdougall · JS Congress

1:20 min

Identifying multi-disciplinary talent for developer experience engineering roles

Hazal Mestci +1 · Coffee With Developers

2:03 min

Distinguishing type definition constructs from data validation routines

Clemens Vasters Clemens Vasters · WWC 2025

2:35 min

Navigating framework adoption and specialized frontend hiring constraints

Chris Heilmann +2 · LIVE

Videos

See all

Related articles

See all