Senior Kotlin/Java Backend Engineer (Fintech, Web3)

TL;DR

Senior Kotlin/Java Backend Engineer (Fintech, Web3): Designing and implementing resilient, scalable, and high-performance backend services for a next-generation payment solution that enables cryptocurrency spending with an accent on building financial and payment-related services and API design. Focus on shaping the technical direction of the platform, ensuring high standards of quality, reliability, and performance, and continuous improvement of system observability.

Location: Remote from anywhere in the world

Salary: Competitive (EURO/USDT)

Company

hirify.global is a high-tech company in the blockchain sector, headquartered in Zug, Switzerland, focused on bringing digital assets to the masses with a smartcard-based hardware wallet and mobile applications.

What you will do

• Design and implement resilient, scalable, and high-performance backend services.
• Develop clean, maintainable, and extensible Kotlin/Java code.
• Build and maintain financial and payment-related services.
• Collaborate with product, DevOps, and engineering teams to deliver end-to-end solutions.
• Participate in code reviews, architecture discussions, and technical decision-making.
• Continuously improve system reliability, observability, and performance.

Requirements

• Excellent knowledge of Kotlin/Java.
• Strong experience working as a Backend Engineer in production environments.
• Solid understanding of software architecture, design principles, and common patterns.
• Hands-on experience with CI/CD pipelines and modern development workflows.
• Familiarity with cloud-native application development.
• Strong communication and collaboration skills.
• Experience in fintech or payment systems is a strong plus.

Culture & Benefits

• Work alongside a team of highly skilled professionals.
• Build products using a modern, thoughtfully selected tech stack.
• Minimal bureaucracy and fast decision-making.
• Real ownership: directly influence the product, architecture, and business outcomes.
• Opportunity to grow technically and shape the future of the platform.
• 20 working days vacation per year.
• Paid sick leaves and birthday presents.
• Compensation for the purchase of necessary technical devices for work.