Blockchain Developer

Posted 21 Days Ago
Be an Early Applicant
Manassas, VA, USA
In-Office
122K-226K Annually
Expert/Leader
Fintech • Payments • Software • Financial Services
The Role
As a Blockchain Developer, you'll design and develop blockchain applications, write secure smart contracts, optimize performance, and mentor junior developers, contributing to technical leadership.
Summary Generated by Built In

ABOUT US

We’re the world’s leading provider of secure financial messaging services, headquartered in Belgium. We are the way the world moves value – across borders, through cities and overseas. No other organisation can address the scale, precision, pace and trust that this demands, and we’re proud to support the global economy. 

We’re unique too. We were established to find a better way for the global financial community to move value – a reliable, safe and secure approach that the community can trust, completely. We’re always striving to be better and are constantly evolving in an ever-changing landscape, without undermining that trust. Five decades on, our vibrant community reflects the complexity and diversity of the financial ecosystem. We innovate diligently, test exhaustively, then implement fast. In a connected and exciting era, our mission has never been more relevant. Swift now has a presence in 200+ countries and legal territories to serve a community of more than 12,000 banks and financial institutions.   

Education

University degree in computer science or related field. Or equivalent work experience.

Experience

10 to 12 years' experience in systems development.

Key Responsibilities
  • Design and develop blockchain-based applications and smart contracts

  • Build and maintain decentralized systems using platforms such as Ethereum, Solana, or Hyperledger Besu

  • Write secure, efficient smart contracts using languages like Solidity or Rust

  • Conduct code reviews, testing, debugging, and security audits

  • Optimize blockchain performance, scalability, and transaction efficiency

  • Integrate blockchain solutions with APIs, databases, and cloud services

  • Mentor junior developers and contribute to technical leadership

  • Stay updated on emerging blockchain technologies, protocols, and best practices

Required Skills & Qualifications
  • Strong experience in blockchain development and distributed systems

  • Proficiency in Solidity, Rust, JavaScript/TypeScript, Go, or Python

  • Deep understanding of smart contracts, cryptography, consensus mechanisms, and Web3 technologies

  • Experience with frameworks/tools such as Hardhat, Truffle, and Foundry

  • Familiarity with DeFi, NFTs, wallets, and token standards (ERC-20, ERC-721)

  • Knowledge of security best practices and vulnerability mitigation

  • Experience with CI/CD pipelines, cloud platforms, and agile development

Preferred Qualifications
  • Bachelor’s or Master’s degree in Computer Science or related field

  • Contributions to open-source blockchain projects

  • Relevant blockchain certifications or published projects

Typical Outcomes

  • Deliver secure and scalable blockchain products

  • Improve transaction efficiency and platform reliability

  • Support innovation in decentralized finance, digital assets, and enterprise blockchain solutions

The estimated salary range for a new hire into this position in Virginia is $121,564 USD Annual to $225,762 Annual USD. Salary may vary depending on job-related factors which may include knowledge, skills, experience, and location. Our compensation packages include a competitive base salary and bonus opportunity for all employees contingent on personal and company performance. Our generous benefits program includes medical, dental, vision and life insurance with no premium costs for our employees and their families, and retirement plan plus matching 401k.

What we offer

We give you the freedom to be yourself. We are creating an environment of unique individuals – like you – with different perspectives on the financial industry and the world. A diverse and inclusive environment in which everyone’s voice counts and where you can reach your full potential.

We are committed to an inclusive and accessible recruitment process. If you require a reasonable accommodation related to accessibility during your application or interview, please contact [email protected] or indicate this in your application.

Please note that this mailbox is not monitored for general recruitment enquiries and should only be used for accessibility or accommodation-related requests (for example related to vision, hearing or neurodiversity).

All requests are confidential and will not affect your candidacy.

Don’t meet every single requirement? At Swift, we are dedicated to building a workplace where people can bring their full selves and ideas to the team, so if you are excited about this role, we encourage you to apply even if you do not meet every single qualification.

Skills Required

  • 10 to 12 years' experience in systems development.
  • Strong experience in blockchain development and distributed systems.
  • Proficiency in Solidity, Rust, JavaScript/TypeScript, Go, or Python.
  • Deep understanding of smart contracts, cryptography, consensus mechanisms, and Web3 technologies.
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The Company
HQ: New York, NY
4,765 Employees
Year Founded: 1973

What We Do

SWIFT is a global member-owned cooperative and the world’s leading provider of secure financial messaging services. We provide our community with a platform for messaging and standards for communicating, and we offer products and services to facilitate access and integration, identification, analysis and regulatory compliance. Our messaging platform, products and services connect more than 11,000 banking and securities organisations, market infrastructures and corporate customers in more than 200 countries and territories. SWIFT also brings the financial community together – at global, regional and local levels – to shape market practice, define standards and debate issues of mutual interest or concern. For more information, visit www.swift.com or follow us on Twitter: @swiftcommunity

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