Design and implement core Web3 protocol features and secure smart contracts. Develop and deploy Solidity-based contracts, ensure scalability and performance, review code, mentor junior engineers, and collaborate across teams to integrate blockchain and DeFi solutions.
Summary: Join a venture-backed Web3 startup at the forefront of innovation, creating next-generation social and financial primitives. As a Senior Software Engineer, you will design and develop core protocol features and secure smart contracts that will drive the future of decentralized technology.
Responsibilities:
- Architect and implement core protocol features for Web3 applications.
- Develop and deploy secure smart contracts using Solidity.
- Collaborate with cross-functional teams to integrate blockchain solutions.
- Ensure the scalability and performance of blockchain implementations.
- Stay updated with the latest developments in blockchain technology and EVM internals.
- Conduct code reviews and provide mentorship to junior developers.
Required skills:
- Proficiency in Solidity and TypeScript.
- Strong understanding of Ethereum Virtual Machine (EVM) internals.
- Experience in developing and deploying smart contracts on blockchain platforms.
- Knowledge of decentralized finance (DeFi) and blockchain protocols.
- Excellent problem-solving and analytical skills.
- Strong communication and collaboration abilities.
Similar Jobs
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Owns new-logo acquisition and expansion across enterprise accounts for Mastercard Identity’s fraud and identity data products. The role prospectively builds pipeline, manages consultative and technical sales cycles, engages fraud, payment risk, trust and safety, data science, and engineering stakeholders, represents the company at industry events, and accurately forecasts against quota.
Top Skills:
APIsData ScienceFraud ModelsIdentity DataWeb-Based Portals
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Own new-logo acquisition and expansion across enterprise accounts for Mastercard Identity. Prospect independently, build qualified pipeline, manage consultative and technical sales cycles, and sell identity data solutions to fraud, payment risk, and trust and safety leaders. Navigate technical and business stakeholders, collaborate with Mastercard teams, represent the company at industry events, forecast accurately, and deliver against quota.
Top Skills:
APIsIdentity DataWeb-Based Portals
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Owns new-logo acquisition and expansion across enterprise accounts, selling Mastercard Identity’s API and identity data products to fraud, payment risk, and Trust & Safety leaders. Responsibilities include prospecting, independently building pipeline, managing consultative and technical sales cycles, multi-threading opportunities, navigating business and technical buyers, representing the company at industry events, and accurately forecasting against quota.
Top Skills:
APIsWeb-Based Portals
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute

