Senior Software Engineer - Data (Fullstack)

TL;DR

Senior Software Engineer - Data (Fullstack): Building and evolving customer-facing portals for subscription and billing management with an accent on scalable architecture and seamless self-service experiences. Focus on designing secure APIs, integrating internal platforms, and optimizing end-to-end feature delivery.

Location: Barcelona, Spain

Salary: €50,000 - €80,000

Company

hirify.global is building leading business management software centralizing HR, finance, and operations for companies of all sizes.

What you will do

• Design and develop customer-facing portals for subscription and account management.
• Build robust backend services and secure APIs to connect internal platforms like CRM and billing.
• Collaborate with Product, Design, and Finance teams to translate business needs into scalable user experiences.
• Own features end-to-end, from architecture and implementation to production monitoring.
• Contribute to architectural decisions and write technical proposals (RFCs).
• Implement observability and performance improvements using a GitOps-driven mindset.

Requirements

• 5+ years of experience in backend systems or full-stack product development.
• Proven track record of building customer-facing platforms or SaaS applications.
• Solid experience designing and maintaining production-grade APIs.
• Experience with modern frontend frameworks such as React.
• Ability to integrate multiple internal and third-party systems.
• English proficiency for collaborating with distributed teams.

Culture & Benefits

• High-growth, multicultural environment with a focus on radical ownership.
• Private health insurance via Alan and wellness access via Wellhub.
• Expense management via Cobee and language classes.
• Office perks including breakfast, organic fruit, and pet-friendly atmosphere.
• Strong internal culture of learning and teaching.

Hiring process

• Engineering Manager interview focused on alignment and technical background.
• Technical interview focusing on a code review or practical challenge.
• Final cultural and vision chat with an Engineering or Product leader.