Senior Backend Developer - Digital Assets (contract)

BNY; New York (NY); Hybrid; USD 118,000 - 149,000; Full time

Benefits offered by this job

Medical, dental, vision

Retirement benefits via Tundra

Job summary

BNY is seeking a Senior Backend Engineer for a highly specialized Digital Assets Engineering team. You will build secure, scalable infrastructure for digital asset custody, wallet technologies, and blockchain integrations in a hands-on backend role.

You will collaborate with cryptographers to implement cryptographic solutions and help develop enterprise-grade custody platforms for tokenized assets. Remote and on-site options in multiple US locations are available.

Qualifications

• 7+ years of experience developing secure backend applications or security-focused software solutions.
• 4+ years of strong programming experience using Rust (preferred), Go, or C++.
• Experience developing blockchain applications, smart contracts, or tokenized asset platforms.
• Knowledge of blockchain technology, digital wallets, tokenization, and digital asset ecosystems.
• Experience implementing or working with cryptographic libraries, secure protocols, or cryptographic frameworks.
• Understanding of secure software development practices, threat modeling, and secure application design.
• Experience integrating with blockchain nodes, APIs, and distributed systems.

Responsibilities

• Backend Software Development: Design, develop, and maintain secure backend applications supporting digital asset custody platforms and blockchain infrastructure.
• Secure Programming: Build security-focused software using Rust, Go, or C/C++, implementing cryptographic frameworks and secure coding best practices.
• Digital Asset Development: Develop solutions supporting digital wallets, blockchain integrations, tokenized assets, and secure transaction processing.
• Cryptographic Integration: Work alongside cryptographers to implement secure cryptographic libraries, MPC frameworks, and key management solutions within enterprise applications.
• Threat Modeling & Security Reviews: Perform threat modeling, secure code reviews, vulnerability analysis, and security testing to identify and mitigate application risks.
• Blockchain Integration: Build and maintain integrations with blockchain nodes and APIs while supporting transaction creation, signing, and secure communication across distributed networks.
• Infrastructure Security: Develop secure storage solutions for encrypted key material, audit logs, and sensitive application data while leveraging hardware security technologies and trusted execution environments.
• Cross-Functional Collaboration: Partner with software engineers, security architects, and product teams to deliver highly secure, resilient digital asset solutions.

Skills

Rust/Go/C++

Blockchain tech

Security-focused

Distributed systems

Cryptography

Threat modeling

API integration

Tools

Blockchain nodes APIs

HSM/TEE tools

Job description

At BNY, our culture allows us to run our company better and enables you to grow and succeed. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the world’s investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide.

Recognized as a top destination for innovators and champions of inclusion, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance – and this is what is all about. Join us and be part of something extraordinary.

Job Summary

We are seeking a Senior Backend Engineer to join a highly specialized Digital Assets Engineering team responsible for building secure, scalable infrastructure supporting the future of institutional digital finance. This is a hands‑on backend software engineering role focused on developing secure digital asset custody platforms, blockchain integrations, and wallet technologies using modern cryptographic frameworks.

The ideal candidate is first and foremost an experienced software engineer who understands secure programming, distributed systems, and blockchain technologies. You will partner with cryptographers and security specialists to implement— not invent—cryptographic solutions while helping build enterprise‑grade custody platforms for tokenized assets.

This role is based in New York, NY , Pittsburgh, PA, Lake Mary, FL or Remote.

Key Responsibilities

• Backend Software Development: Design, develop, and maintain secure backend applications supporting digital asset custody platforms and blockchain infrastructure
• Secure Programming: Build security-focused software using Rust, Go, or C/C++, implementing cryptographic frameworks and secure coding best practices
• Digital Asset Development: Develop solutions supporting digital wallets, blockchain integrations, tokenized assets, and secure transaction processing
• Cryptographic Integration: Work alongside cryptographers to implement secure cryptographic libraries, MPC frameworks, and key management solutions within enterprise applications
• Threat Modeling & Security Reviews: Perform threat modeling, secure code reviews, vulnerability analysis, and security testing to identify and mitigate application risks
• Blockchain Integration: Build and maintain integrations with blockchain nodes and APIs while supporting transaction creation, signing, and secure communication across distributed networks
• Infrastructure Security: Develop secure storage solutions for encrypted key material, audit logs, and sensitive application data while leveraging hardware security technologies and trusted execution environments
• Cross-Functional Collaboration: Partner with software engineers, security architects, and product teams to deliver highly secure, resilient digital asset solutions

Qualifications

• 7+ years of experience developing secure backend applications or security-focused software solutions
• 4+ years of strong programming experience using Rust (preferred), Go, or C++
• Experience developing blockchain applications, smart contracts, or tokenized asset platforms
• Knowledge of blockchain technology, digital wallets, tokenization, and digital asset ecosystems
• Experience implementing or working with cryptographic libraries, secure protocols, or cryptographic frameworks
• Understanding of secure software development practices, threat modeling, and secure application design
• Experience integrating with blockchain nodes, APIs, and distributed systems
• Strong problem-solving skills and the ability to communicate technical concepts effectively

Preferred Experience

• Familiarity with hardware security technologies such as Intel SGX, Trusted Execution Environments (TEE), or Hardware Security Modules (HSMs)
• Experience with Multi-Party Computation (MPC) frameworks or secure wallet technologies
• Master's degree in Computer Science, Cybersecurity, Cryptography, Engineering, or a related discipline
• Background building digital asset custody or financial technology solutions
• Experience within financial services, banking, fintech, or digital asset organizations
• Familiarity with cloud security, containerization, and enterprise-scale distributed systems
• Experience working with highly secure, regulated technology environments

Why Join Us

Join a team building the next generation of institutional digital asset infrastructure at one of the world's leading financial institutions. You'll contribute to enterprise‑scale wallet technologies, blockchain integrations, and secure custody platforms while working alongside experts in software engineering, cryptography, and digital assets. This is an opportunity to solve complex security challenges, work with cutting‑edge technologies, and help shape the future of tokenized finance in a highly collaborative engineering environment.

Why Join Us

This is an opportunity to help build the next generation of secure digital asset infrastructure at one of the world's leading financial institutions. You'll work alongside experts in cryptography, blockchain, and security engineering to develop resilient custody solutions, solve complex security challenges, and contribute to cutting‑edge technologies shaping the future of institutional digital finance.

At BNY, our culture speaks for itself, check out the latest BNY news at:

BNY Newsroom

BNY LinkedIn

Here’s a few of our recent awards:

America’s Most Innovative Companies, Fortune, 2025

World’s Most Admired Companies, Fortune 2025

“Most Just Companies”, Just Capital and CNBC, 2025

Pay Rate Range

86.4 - 108 USD hourly

Additional Notes

Applications will be accepted on an ongoing basis.

This posting is for a contract assignment with Tundra Technical Solutions to provide services to Bank of New York (BNY). Please note that this is not a full-time employment opportunity. Candidates selected for this role will be engaged as contractors for the specified duration of the project. For any inquiries regarding the terms of the contract or engagement, please contact Tundra Technical Solutions directly.

Benefits Information

Optional benefits offering include medical, dental, vision and retirement benefits via Tundra Technical Solutions.