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Senior Web3 / Blockchain Developer

Engineering | Remote, - / +4 hrs from PDT | Contract | From $90.00 to $120.00 per hour

Job Description

JOB TYPE: Freelance, Contract Position - No agencies (See notes below)

LOCATION: Remote (TimeZone: BST, CST, EST)

HOURLY RANGE: Our client is looking to pay $90 - $120 USD / HR

ESTIMATED DURATION: 40Hrs/Week - Long-term, ongoing project


Braintrust ( is a user-controlled talent network, where you keep 100% of what you earn and get a say in how the network is run with the BTRST token. We've onboarded some of the world's most reputable brands and now we need a Senior Web3 / Blockchain Developer for one of our clients.  



Our client is to be a centralized information hub for a decentralized community. We are currently in stealth mode and are looking to expand our team to create an amazing product for the community. 


About the Role

We are looking for an experienced Blockchain / Full Stack developer to build our platform. Our client is to be a centralized information hub for a decentralized community. 

You should be self-motivated, able to work autonomously without supervision, and manage your time and tasks reliably. In our non-hierarchical organization, you are your own boss and empowered to make all decisions required to fulfill the accountabilities of your role. 


  • 4+ years of experience as backend developer
  • Knowledge or experience in DeFi / Blockchain
  • Comprehensive understand of the entier web development process
  • Practical experience with backend programming languages 
  • Excellent analytical and time management skills 
  • Knowledge of working with Docker and Containerization
  • Practical experience developing smart contracts using Solidity and working with the Ethereum ecosystem and or other blockchain ecosystems 
  • Strong expertise with databases and data analystics
  • Experience with cloud computing platforms / deployment
  • Experience with Web API development and system integration 
  • Experience with agile development
  • Fluent in written and spoken English 

Technical Experience

  • Rust
  • Node.js
  • Solidity
  • Pyteal
  • C#
  • Java


  • Designing and developing the Citrust platform 
  • Writing unit, integration and performance tests 
  • Writing efficient, secure code and clean code to developA PIs 
  • Researching related technologies and components 
  • Deploying and upgrading the software 
  • Documenting the code and the software components 
  • Maintaining the software and bug fixing 
  • Writing the Citrust API and system interfaces 
  • Participation in the entire application lifecycle, with a focus on programming and debugging 
  • Trouble shoot and debug APIs 
  • Working with front-end developers to integrate user interface elements with the logic on the server side 
  • Collecting and resolving technical and design requirements 
  • Providing training and support for internal teams 
  • Developing reusable code and libraries for future use 
  • Working with frontend developers, designers and devops to identify new features 
  • Tracking evolving technologies 


Qualified candidates will be invited to do a screening interview with the Braintrust staff. We will answer your questions about the project, and our platform.  If we determine it is the right fit for both parties, we'll invite you to join the platform and create a profile to apply directly for this project.  

C2C Candidates: This role is not available to C2C candidates working with an agency. But if you are a professional contractor who has created an LLC/corp around your consulting practice, this is well aligned with Braintrust and we’d welcome your application.  

Braintrust values the multitude of talents and perspectives that a diverse workforce brings. All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.