Senior Software Engineer (Fintech)

TL;DR

Senior Software Engineer (Fintech): Developing and maintaining robust payout and financial systems for a global marketplace with an accent on scalability, security, and high-performance backend architecture. Focus on transitioning monolithic services to distributed architectures, building resilient payment infrastructure, and optimizing transaction processing within an agile environment.

Location: Must be based in or able to commute to Barcelona, Spain (Hybrid role with 2 remote days per week).

Company

hirify.global is a global marketplace for refurbished devices, dedicated to reducing environmental impact by making reliable, affordable tech more accessible.

What you will do

• Design and implement scalable backend services for financial payout and fraud prevention systems.
• Manage the full payout lifecycle, from payment execution to seller compliance and risk monitoring.
• Collaborate within an agile squad to own the entire product lifecycle from development to production monitoring.
• Modernize legacy monoliths into a service-oriented architecture.
• Facilitate technical discussions and improve system design for mission-critical areas.
• Mentor colleagues and contribute to an engineering culture of sharing and continuous improvement.

Requirements

• English: C1 level fluency is required for collaboration across international teams.
• 5+ years of professional backend development experience.
• Strong background in system design, distributed systems, and microservices architecture.
• Proficiency in Python and experience with performance optimization and data architecture.
• Experience with SQL databases, message brokers, and cloud infrastructure (GCP/Kubernetes).
• Ability to navigate technical ambiguity with a fullstack mindset and strong communication skills.

Nice to have

• Experience with Golang or modern frontend frameworks like VueJS/Typescript.
• Knowledge of high-load systems and chaos mitigation techniques.

Culture & Benefits

• Mission-driven work environment focused on environmental sustainability and circular economy.
• Hybrid work setup including 2 remote days per week, 1 remote work week per quarter, and additional flex days.
• Comprehensive career development programs and mentorship opportunities.
• Commitment to diversity, equity, and inclusion with active Employee Resource Groups.
• High-scoring B Corp certified organization with a focus on work-life balance.

Hiring process

• HR screening, technical assessments (Backend and System Design), data module review, and leadership/values-based interviews.