Senior Software Engineer (Blockchain)

Wallex is a FinTech company providing a secure cryptocurrency exchange platform and digital asset payment solutions.
With a vision to become a leading global FinTech enterprise, Wallex is recognized as one of the largest cryptocurrency exchange platforms in Iran, enabling the online trading of more than 130 cryptocurrencies.

At Wallex, we build modern, scalable financial technology solutions. As a Senior Software Engineer, you will play a key role in designing, developing, and deploying high-performance backend services, focusing on microservices and blockchain integration.
We’re looking for someone who thrives in a collaborative environment, enjoys mentoring teammates, and is excited about working with emerging technologies in a practical, real-world setting.

What You’ll Do

• Design and build scalable, maintainable microservices, driving system architecture, performance, and reliability improvements.
• Lead the integration of blockchain technologies into backend systems (focused on practical applications, not smart contract development).
• Collaborate with product managers, engineers, and designers to understand requirements and deliver business-critical features.
• Conduct and participate in code reviews, ensuring high code quality, scalability, and performance standards.
• Mentor junior engineers by sharing knowledge and providing technical guidance (informal mentorship; no formal management duties).
• Stay updated on backend and blockchain technology trends, proposing ways to continuously improve our systems.
• Troubleshoot production issues and work closely with DevOps to ensure smooth deployment and operation.

What We’re Looking For

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related fields.
• 4+ years of professional experience as a backend software engineer, with strong hands-on expertise in Golang.
  Proven experience designing and building microservices architectures.
• Familiarity with blockchain concepts (e.g., distributed ledgers, cryptographic principles); experience integrating blockchain technologies (not necessarily developing smart contracts).
• Solid understanding of RESTful APIs, distributed systems, and cloud infrastructure.
• Hands-on experience with containerization tools like Docker and orchestration systems like Kubernetes.
• Familiarity with using Golang, TypeScript, and Node.js is a bonus, but not required.
• Strong problem-solving skills, debugging abilities, and an eagerness to learn.
• Clear and practical communication skills — you can explain complex ideas simply, both to technical and non-technical team members.

Why Join Wallex?

• Work at the intersection of finance and cutting-edge technology.
• Flexible, collaborative culture with a strong engineering voice.
• Opportunity to expand your skills into blockchain, cloud architecture, and more.
• A chance to build impactful products used by real-world businesses.

If you’re passionate about scalable backend systems, curious about blockchain, and excited to work on meaningful projects, we encourage you to apply!