Senior Software Engineer

We are looking for an experienced senior software engineer

with strong backend engineering expertise and hands-on experience in custody, digital assets, tokenization, blockchain technologies, and modern software engineering practices.

The ideal candidate will have extensive experience building secure, scalable, and high-performance enterprise applications, with strong proficiency in Node.js and/or Java Spring Boot, along with exposure to blockchain platforms, digital asset ecosystems, and large language models (LLM).

The role requires a strong engineering mindset, experience working in banking, financial services, or fintech environments, and the ability to contribute to architecture, design, development, and delivery of complex enterprise-grade solutions.

Requirements

Key responsibilities

• Design, develop, and maintain scalable backend applications using Node.js and/or Java Spring Boot.
• Build and enhance solutions related to custody platforms, digital assets, tokenization, and blockchain-based systems.
• Develop secure and reliable services following enterprise software engineering standards.
• Collaborate with architects, product teams, engineers, and business stakeholders to deliver high-quality solutions.
• Ensure technical quality across application architecture, design, coding practices, security, testing, and documentation.
• Participate in system design discussions and contribute towards technology decisions.
• Research, evaluate, and benchmark emerging technologies against industry best practices.
• Implement clean, maintainable, and well-documented code following engineering standards.
• Develop and maintain unit tests to ensure application reliability and performance.
• Work within agile delivery methodologies and contribute effectively to scrum ceremonies.
• Troubleshoot complex technical issues and provide effective solutions.
• Support continuous improvement initiatives across software engineering practices.

Required technical skills & experience

Backend development

• Strong hands-on experience with Node.js backend development.
• Experience with Java Spring Boot application development.
• Strong understanding of backend architecture, APIs, microservices, and enterprise application development.
• Experience designing and developing scalable, secure, and high-performing systems.

Blockchain & digital assets

• Hands-on experience working on projects involving:
  • Custody platforms
  • Digital assets
  • Tokenization
  • Blockchain technologies
• Understanding of blockchain concepts, architecture, and integration patterns.
• Experience building or integrating solutions within digital asset ecosystems is highly preferred.

Artificial intelligence

• Experience or exposure working with large language models (LLM) and AI-enabled applications.
• Understanding of modern AI integration patterns within enterprise applications is preferred.

Functional skills & domain experience

• 7+ years of experience for software engineer/senior software engineer level.
• 12+ years of experience for senior/lead software engineer level.
• Strong experience in banking, financial services, or fintech enterprise environments.
• Experience delivering complex enterprise-grade software solutions.
• Strong understanding of:
  • Secure coding practices
  • Software development lifecycle
  • Unit testing standards
  • Technical documentation practices
  • Application architecture and design principles
• Experience working in agile methodology environments.
• Ability to research, evaluate, and adopt best-in-class technologies.

Preferred qualifications

• Experience working on payment platforms, financial technology products, or digital banking solutions.
• Experience in highly regulated financial environments.
• Strong problem-solving and analytical skills.
• Excellent collaboration and communication skills.
• Ability to work independently and as part of a cross-functional engineering team.