Paxos · 6 hours ago
Senior Software Engineer, Custody
United States
Full-time
Remote
Senior Level
$173K/yr - $204K/yr
5+ years expPaxos is on a mission to rebuild the financial infrastructure to make it more accessible and efficient. As a Senior Engineer on the Custody team, you will architect and maintain the crypto custody infrastructure, ensuring security and scalability while collaborating with cross-functional teams.
BlockchainCryptocurrencyFinancial ServicesFinTech
Responsibilities
Design, develop, and maintain mission-critical custody systems 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 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, security, and financial technology to drive innovation within the team
Participate in code reviews, architectural discussions, and technical decision-making processes
Qualification
Required
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
A passion for innovation and driving technical solutions to real-world problems
Preferred
Experience working on high-throughput, low-latency systems, trading infrastructure, cryptography, or custody platforms is a strong plus
Benefits
Equity
Bonuses based on both your individual performance and company performance
Company
Paxos
Paxos is a regulated financial institution building infrastructure to enable movement between physical and digital assets.
201-500 employees
H1B Sponsorship
Paxos has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (7)
2024 (1)
2023 (12)
2022 (6)
2021 (14)
2020 (2)
Funding
Current Stage
Late StageTotal Funding
$543.48MKey Investors
MercadoLibreAlameda ResearchOak HC/FT
2022-01-20Corporate Round
2022-01-01Series Unknown· $5M
2021-04-29Series D· $300M
Leadership Team
Charles Cascarilla
CEO and Co-Founder
Richmond Teo
Co-Founder & CEO Asia
Recent News
Ledger Insights - blockchain for enterprise
2026-01-08
2026-01-07
2026-01-06
Company data provided by crunchbase