Senior Backend Engineer
Credmark provides curated blockchain data, DeFi APIs, raw-data access, and a Python transformation/modeling framework for developers, quants, and data users.
Maintainer signals as of 9/25/2026
Funding history
Projects
About Credmark
Credmark is an active DeFi data and financial-modeling company. Its current offering includes token, portfolio, and DeFi APIs; raw blockchain data through the Snowflake Marketplace; a Python Model Framework for building and deploying transformations; and the Credmark Terminal for visualizing DeFi analytics and risk metrics. The platform supports multiple blockchain networks and provides current and historical on-chain data.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will design, build, and maintain secure, scalable backend systems. You will create feature-rich APIs, develop smart contracts in Solidity, build data ETL pipelines, implement CI/CD, develop automated test coverage, perform code reviews, document APIs and code, and research technologies for useful features.
Requirements
- 5+ years of practical programming experience with Python or JavaScript
- Experience building microservices
- Experience designing and consuming APIs
- Experience building and managing scalable big data systems
- Experience managing databases and queuing systems
- Experience automating in AWS or other cloud providers
- Experience working in an agile team
- Experience in DeFi and blockchain technologies
- Experience writing smart contracts in Solidity
- Active open source contributions
- Knowledge of statistics and probability
- Familiarity with cybersecurity best practices
- Highly organized
- Collaborative but willing to learn independently
Responsibilities
- Plan and architect the developer platform
- Create simple and feature-rich APIs using chosen programming languages
- Create scalable data ETL pipelines
- Develop and update smart contracts in Solidity
- Build scalable solutions using AWS and other cloud services
- Develop frameworks for automated test coverage
- Implement CI/CD processes
- Document APIs and code for public consumption
- Perform code reviews
- Research technologies and propose features