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 PayPal, Venmo, Mastercard and Interactive Brokers. 

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 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 

• 5+ years of professional experience in software engineering, with substantial expertise in blockchain technologies.
• Proven hands-on experience with deploying and maintaining code in production environments, including cloud platforms and services.
• Strong problem-solving and analytical skills; able to troubleshoot and resolve complex technical issues independently.
• Excellent communication skills and a collaborative mindset; comfortable working with stakeholders from multiple disciplines.
• Capable of managing multiple priorities effectively and delivering high-value results in a dynamic, fast-paced environment.
• Passion for learning and making meaningful contributions in the areas of blockchain protocols, cryptographic principles, consensus algorithms, and decentralized applications (dApps).
• Mentor junior engineers and contribute to a culture of technical excellence and continuous learning.

About you

• 5+ years of software engineering experience, ideally in fast-paced, high-growth environments.
• Proficiency in at least one modern programming language (Golang or Java preferred; Kotlin, Rust, Python, or C++ also valued.)
• Solid foundation in computer science fundamentals, including data structures, algorithms, and distributed system design.
• Experience building and maintaining cloud-native services using tools such as Kubernetes, Docker, Kafka, and AWS.
• Strong debugging and problem-solving skills, especially in production environments.
• Excellent collaboration and communication abilities; able to work effectively with cross-functional teams.
• Experience working on high-throughput, low-latency systems or trading infrastructure is a strong plus.
• A passion for innovation and driving technical solutions to real-world problems.

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! 

Pay and benefits