STEM OPT Blockchain Engineer Jobs
Blockchain Engineer roles qualify for STEM OPT because they fall under computer science and information technology CIP codes. Your 24-month STEM OPT extension lets you work for any employer enrolled in E-Verify, giving you three full years to build experience in distributed ledger systems, smart contract development, and decentralized protocol engineering.
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Get Access To All JobsBlockchain Engineer
About The Role
We are seeking a talented Blockchain Engineer to join our Digital Assets Engineering team. In this role, you will design, develop, and secure smart contracts that power tokenization, custody, and settlement solutions within a regulated financial environment. You will work on cutting-edge blockchain integrations, ensuring scalability, security, and compliance across our enterprise systems.
Key Responsibilities
- Design and implement secure, efficient smart contracts for digital asset workflows.
- Collaborate with product and architecture teams to integrate contracts with EVM-compatible chains and enterprise systems.
- Conduct code reviews, enforce best practices, and maintain compliance with internal security standards.
- Implement automated testing frameworks for smart contract deployments.
- Work with cybersecurity teams to identify and remediate vulnerabilities; support external security audits.
- Optimize performance and scalability for high-volume transaction environments.
Required Skills & Qualifications
- 3+ years of blockchain and smart contract development experience.
- Proficiency in Solidity and smart contract development.
- Hands-on experience with Ethereum, Hyperledger Besu, and other EVM-based platforms.
- Strong understanding of tokenization standards (e.g., EIP-7702, EIP-712, ERC-1451).
- Knowledge of cryptographic principles, multi-party computation (MPC), and secure key management.
- Bachelor’s degree in Computer Science or a related field.
Preferred Certifications
- C4 Ethereum Developer
- Cyfrin Smart Contract
Preferred Experience
- Financial services or regulated environments.
- Integration with custody and settlement systems.
- Agile development and DevSecOps practices.
Technologies
Solidity, Ethereum, Hyperledger Besu, EVM-based platforms, Java, Spring Boot
Why Join Us
Be part of a forward-thinking team at the forefront of blockchain innovation in financial services. Work on impactful projects that combine technology, security, and compliance, all while shaping the future of digital assets.
Blockchain Engineer
About The Role
We are seeking a talented Blockchain Engineer to join our Digital Assets Engineering team. In this role, you will design, develop, and secure smart contracts that power tokenization, custody, and settlement solutions within a regulated financial environment. You will work on cutting-edge blockchain integrations, ensuring scalability, security, and compliance across our enterprise systems.
Key Responsibilities
- Design and implement secure, efficient smart contracts for digital asset workflows.
- Collaborate with product and architecture teams to integrate contracts with EVM-compatible chains and enterprise systems.
- Conduct code reviews, enforce best practices, and maintain compliance with internal security standards.
- Implement automated testing frameworks for smart contract deployments.
- Work with cybersecurity teams to identify and remediate vulnerabilities; support external security audits.
- Optimize performance and scalability for high-volume transaction environments.
Required Skills & Qualifications
- 3+ years of blockchain and smart contract development experience.
- Proficiency in Solidity and smart contract development.
- Hands-on experience with Ethereum, Hyperledger Besu, and other EVM-based platforms.
- Strong understanding of tokenization standards (e.g., EIP-7702, EIP-712, ERC-1451).
- Knowledge of cryptographic principles, multi-party computation (MPC), and secure key management.
- Bachelor’s degree in Computer Science or a related field.
Preferred Certifications
- C4 Ethereum Developer
- Cyfrin Smart Contract
Preferred Experience
- Financial services or regulated environments.
- Integration with custody and settlement systems.
- Agile development and DevSecOps practices.
Technologies
Solidity, Ethereum, Hyperledger Besu, EVM-based platforms, Java, Spring Boot
Why Join Us
Be part of a forward-thinking team at the forefront of blockchain innovation in financial services. Work on impactful projects that combine technology, security, and compliance, all while shaping the future of digital assets.
See all Blockchain Engineer jobs
Sign up for free to unlock all listings, filter by visa type, and get alerts for new Blockchain Engineer roles.
Get Access To All JobsTips for Finding STEM OPT Authorization as a Blockchain Engineer
Verify your CIP code supports STEM OPT
Blockchain Engineer roles typically map to computer science, computer engineering, or information technology CIP codes. Confirm your degree's CIP code with your DSO before applying, since a mismatched code disqualifies your extension regardless of your technical skills.
Check E-Verify enrollment before accepting offers
Your STEM OPT extension is only valid with an E-Verify-enrolled employer. Search the E-Verify employer search tool to confirm enrollment status before signing anything. Startups and early-stage blockchain protocols often lack enrollment and can't legally hire you on STEM OPT.
Target employers with active blockchain LCA filings
Use Migrate Mate to filter for employers who have filed Labor Condition Applications for blockchain and software engineering roles. LCA filing history confirms both E-Verify enrollment and a track record of sponsoring work-authorized candidates in technical positions.
Build your I-983 training plan around on-chain deliverables
Your I-983 must list specific learning objectives tied to your job duties. For Blockchain Engineer roles, map your plan to concrete outputs like smart contract audits, consensus mechanism implementations, or protocol contributions, not vague goals like 'gaining industry experience.'
Negotiate role scope before your 90-day filing deadline
USCIS requires your STEM OPT extension application to be filed at least 90 days before your initial OPT expires. Resolve any title ambiguity with your employer early so your I-983 reflects your actual duties and doesn't trigger a USCIS request for evidence.
Use O*NET to align your credentials with the role definition
The O*NET occupation profile for software and blockchain engineering roles lists required knowledge areas and tasks. Cross-check your degree coursework and projects against that profile to demonstrate the direct relationship USCIS and your employer need to see in your training plan.
Blockchain Engineer jobs are hiring across the US. Find yours.
Find Blockchain Engineer JobsFrequently Asked Questions
Does a computer science or information technology degree qualify me for a STEM OPT extension as a Blockchain Engineer?
Yes, if your degree's CIP code falls within the STEM-designated list maintained by ICE. Computer science, computer engineering, and information technology degrees are all eligible. Your DSO can confirm your specific CIP code. The degree field needs to have a reasonable connection to your Blockchain Engineer duties, which is straightforward for most CS and software engineering graduates.
What goes into an I-983 training plan for a Blockchain Engineer role?
Your I-983 must specify the practical training goals directly tied to your job duties, the supervision structure, how your employer will evaluate your progress, and how the work connects to your STEM degree. For Blockchain Engineer roles, learning objectives should reference concrete technical work: smart contract development, distributed systems architecture, cryptographic protocol implementation, or blockchain security auditing. Generic objectives are a common reason for USCIS scrutiny.
How do I confirm my employer is enrolled in E-Verify before I accept a Blockchain Engineer offer?
Use the E-Verify employer search tool to look up the company by name or employer identification number before you sign an offer. This is especially important in the blockchain space, where many employers are early-stage companies, DAOs, or crypto startups that may not yet be enrolled. An employer that isn't in E-Verify cannot legally employ you on STEM OPT, and enrolling takes time, so verify early in the process.
What happens to my STEM OPT authorization if I'm transitioning between Blockchain Engineer jobs?
You have a 60-day grace period between jobs on STEM OPT. During that window you can search for a new E-Verify-enrolled employer, but you can't work. When you start with a new employer, you and your new employer must submit an updated I-983 to your DSO. If you're also in the H-1B cap-gap period, your OPT authorization extends through September 30 while your H-1B petition is pending. Browse open Blockchain Engineer roles on Migrate Mate to find employers already set up for STEM OPT hires.
Can a blockchain protocol or DAO employ me on STEM OPT?
Only if the entity qualifies as a U.S. employer under USCIS guidelines and is enrolled in E-Verify. Decentralized autonomous organizations that lack formal U.S. legal registration typically can't satisfy either requirement. If you're considering a role with a protocol foundation or Web3 entity, confirm they have a registered U.S. legal entity with an EIN and active E-Verify enrollment before treating the offer as STEM OPT-eligible.
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