Swift

Blockchain Developer

Swift$121K — $225K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • University degree in computer science or related field, or equivalent work experience
  • 10-12 years' experience in systems development
  • Strong experience in blockchain development and distributed systems
  • Proficiency in programming languages such as Solidity, Rust, JavaScript/TypeScript, Go, or Python
  • Deep understanding of smart contracts, cryptography, consensus mechanisms, and Web3 technologies
  • Knowledge of security best practices and vulnerability mitigation
  • Experience with CI/CD pipelines, cloud platforms, and agile development

Responsibilities

  • Design and develop blockchain-based applications and smart contracts
  • Build and maintain decentralized systems using platforms like Ethereum, Solana, or Hyperledger Besu
  • Write secure, efficient smart contracts
  • 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 and best practices

Benefits

  • Generous medical, dental, vision, and life insurance with no premium costs for employees and families
  • Retirement plan with matching 401k
  • Opportunities for personal and company performance bonuses
  • Supportive environment for diversity and inclusion
  • Encouragement to reach full potential and voice individual perspectives
Full Job Description
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.

About Swift

The Society for Worldwide Interbank Financial Telecommunication, legally S.W.I.F.T. SC, is a Belgian cooperative society providing services related to the execution of financial transactions and payments between banks worldwide. Its principal function is to serve as the main messaging network through which international payments are initiated. It also sells software and services to financial institutions, mostly for use on its proprietary "SWIFTNet", and ISO 9362 Business Identifier Codes, popularly known as "SWIFT codes". The SWIFT messaging network is a component of the global payments system. SWIFT acts as a carrier of the "messages containing the payment instructions between financial institutions involved in a transaction." However, the organization does not manage accounts on behalf of individuals or financial institutions, and it does not hold funds from third parties. It also does not perform clearing or settlement functions. After a payment has been initiated, it must be settled through a payment system, such as TARGET2 in Europe. In the context of cross-border transactions, this step often takes place through correspondent banking accounts that financial institutions have with each other. As of 2018, around half of all high-value cross-border payments worldwide used the SWIFT network, and in 2015, SWIFT linked more than 11,000 financial institutions in over 200 countries and territories, who were exchanging an average of over 32 million messages per day.
Learn more about Swift

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