Product Lead & Backend Architect, FinTech Payments

AstroPay LLP.; Argentina; On-site; ARS 900,000 - 1,500,000; Full time

Job summary

AstroPay is seeking a Product Lead / Senior Software Engineer to design and build scalable backend services for our global payments platform. This hands-on role blends coding with influencing product decisions, architecture, and long-term technical strategy.

You’ll mentor engineers, design APIs, and collaborate with Product, Engineering, and business stakeholders to deliver reliable, secure solutions for millions of users across markets.

Qualifications

• Extensive experience building backend systems with Java.
• Experience designing distributed systems and scalable architectures.
• Experience in Payments, Banking, Fintech, or other highly transactional environments.
• Strong understanding of software architecture and system design.
• Experience with cloud environments, preferably AWS.
• Product mindset with the ability to translate business problems into technical solutions.
• Strong communication skills in English (B2+).

Responsibilities

• Lead the technical design and development of AstroPay's platform.
• Design scalable backend services and APIs for mission-critical financial products.
• Write clean, maintainable, and high-performance Java code.
• Drive architectural decisions with scalability, security, and reliability in mind.
• Help define the product roadmap from a technical perspective, balancing business impact and engineering excellence.
• Mentor engineers through code reviews and technical discussions.
• Continuously improve platform performance, resilience, and developer experience.

Skills

Java backend

Distributed systems

Payments/Fintech

Software architecture

Cloud/AWS

Product mindset

English communication

Job description

AstroPay is seeking a Product Lead / Senior Software Engineer to design and build scalable backend services for our global payments platform. This hands-on role blends coding with influencing product decisions, architecture, and long-term technical strategy.

You’ll mentor engineers, design APIs, and collaborate with Product, Engineering, and business stakeholders to deliver reliable, secure solutions for millions of users across markets.