Senior Software Engineer, Blockchain

About Paxos

Today’s financial infrastructure is archaic, expensive, inefficient and risky — supporting a system that leaves out more people than it lets in. So we’re rebuilding it.

We’re on a mission to open the world’s financial system to everyone by enabling the instant movement of any asset, any time, in a trustworthy way. For over a decade, we’ve built blockchain infrastructure that tokenizes, custodies, trades and settles assets for the world’s leading financial institutions, like Mastercard, Visa, Robinhood, and PayPal. 

About the team

The Blockchain team is at the forefront of innovation, driving the development and implementation of cutting-edge blockchain solutions. We are a dedicated group of engineers passionate about building secure, scalable, and reliable systems that empower our customers. Our team is committed to excellence, leveraging deep domain expertise in blockchain technology to solve complex challenges and deliver outstanding service.

About the role

As a Senior Software Engineer on the Blockchain team, you will play a key role in architecting, building, and maintaining Paxos’ blockchain infrastructure and applications. You’ll use your deep technical expertise and hands-on skills to deliver secure and scalable solutions, collaborating closely across functions to help shape our technological direction and execute complex projects.

What you’ll do

• Design, develop, and maintain mission-critical issuance systems that support tokenized assets across multiple blockchains.

• Collaborate with cross-functional teams including product, compliance, and infrastructure to define system architecture and technical requirements.

• Ensure the reliability, security, and scalability of our issuance services through best practices in software design, testing, and deployment.

• Optimize existing issuance infrastructure to enhance performance, reduce latency, and improve operational efficiency.

• Provide mentorship and technical guidance to junior engineers, fostering a culture of continuous learning and improvement.

• Stay informed about emerging trends in blockchain, distributed systems, and financial technology to drive innovation within the team.

• Participate in code reviews, architectural discussions, and technical decision-making processes.

About you

• 5+ years of software engineering experience, with proven track record of delivering complex technical solutions

• Proven experience working in the crypto / blockchain industry, with a solid understanding of key concepts, market landscape, and ecosystem participants

• Strong expertise in building scalable backend services and RESTful APIs

• Experience with modern web technologies and cloud infrastructure (AWS preferred)

• Track record of writing clean, maintainable code with comprehensive test coverage

• Strong understanding of security best practices and experience building secure systems

• Excellent problem-solving skills and ability to break down complex requirements into manageable tasks

• Experience with workflow engines and state management systems is a plus

• Knowledge of regulatory compliance and KYC/AML processes is a plus

• Demonstrated experience using AI tools to improve how you work

• Strong communication skills and ability to work effectively with cross-functional teams

Important Notice for Paxos Applicants

We’ve become aware of fraudulent accounts posting as Paxos recruiters on LinkedIn and other platforms. These scammers attempt to deceive applicants into paying for job opportunities or providing personal financial information.

To verify a legitimate Paxos recruiter:

• We only use @paxos.com email addresses

• We never ask for payment or financial details to apply, interview, or work here

• For technical roles, we do not perform a coding interview without prior screening by our engineering team

Thanks for your interest in Paxos!