Senior Frontend Engineer (React)

TL;DR

Senior Frontend Engineer (React/NextJS): Building the intelligence layer of an autonomous Sales OS with an accent on clean architecture and high-performance UI components. Focus on integrating external SaaS tools and optimizing frontend systems for AI-augmented sales workflows.

Location: Must be based in or able to commute to Madrid (Hybrid role).

Company

hirify.global is an AI-powered customer communications platform providing a unified workspace for voice, SMS, and messaging to over 22,000 companies globally.

What you will do

• Design and implement production-grade web services using NextJS.
• Apply Domain-Driven Design (DDD) principles to build scalable frontend architectures.
• Integrate the frontend with diverse external SaaS tools like CRMs, dialers, and OAuth providers.
• Optimize frontend performance, focusing on latency, cost-efficiency, and reliability.
• Utilize AI coding assistants to accelerate development and ship features within an elite product unit.

Requirements

• 7+ years of professional frontend engineering experience.
• Advanced expertise in React and NextJS, including async handling, typing, and architecture patterns.
• Solid understanding of software architecture and clean code principles.
• Experience with Tailwind CSS and monitoring tools like DataDog or Sentry.
• Experience with cloud platforms, specifically GCP or AWS.
• Fluency in English required; Spanish is a plus.

Nice to have

• Experience working within AI-augmented development environments.
• Previous work on CRM or sales automation tools.

Culture & Benefits

• Fast-paced, entrepreneurial environment within a high-growth unicorn.
• Emphasis on work-life balance and a supportive, inclusive team culture.
• Diverse global team with 45+ nationalities represented.
• Commitment to continuous learning and professional development.
• Competitive salary and benefits package.