Product Lead / Senior Software Engineer

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

At AstroPay , we're building the next generation of global financial infrastructure. As a Product Lead / Senior Software Engineer, you'll play a key role in designing and building strategic products that power our global payment ecosystem. This is a highly technical, hands‑on role for someone who enjoys writing code but also wants to influence product decisions, system architecture, and long‑term technical strategy. You'll work closely with Product, Engineering, and business stakeholders to design scalable solutions that support millions of users across multiple markets. If you're passionate about building products from the ground up, solving complex engineering challenges, and creating technology that has real global impact, we'd love to meet you. No ping‑pong table promises. Just hard problems, smart teammates, and products that matter.

What you'll be doing

• 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.

Requirements

• Extensive experience building backend systems with Java .
• Experience designing distributed systems and scalable architectures.
• Previous 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 understand business problems and translate them into technical solutions.
• Strong communication skills in English (B2+).