Blockchain Developer
Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on May 21, 2026. Swift scores A on the Alion truth index.
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.