Top Blockchain Jobs in Denver & Boulder, CO

Provides architectural and technical leadership for institutional exchange systems, including matching engines, order management, market data, risk, and unified trading platforms. Leads ultra-low-latency distributed-system design, cross-team technical alignment, reliability standards, incident response, and multi-quarter initiatives. Maintains hands-on engineering contributions while mentoring senior engineers and developing technical leadership across teams.

Design and own secure, scalable wallet infrastructure for custody, key management, transaction signing, authorization, recovery, and multichain systems. Architect support for MPC, HSMs, secure enclaves, TEEs, smart contract wallets, account abstraction, and emerging cryptographic approaches. Define security boundaries, policy engines, secrets management, authentication, and programmable authorization while making foundational build-versus-buy decisions and guiding systems from first principles through production.

Own the full outbound sales cycle for mid-market merchants, including prospecting, pipeline development, discovery, demonstrations, negotiation, and closing. Develop tailored multi-product solutions across Square’s ecosystem, acquire new logos, manage complex stakeholder deals, and maintain accurate Salesforce forecasts. Collaborate with Business Development, Product, Marketing, Implementation, and Operations while consistently meeting or exceeding revenue targets.

Leads a 12-person application security practice conducting code audits, vulnerability research, and secure design reviews. Oversees technical delivery, client relationships, project staffing, utilization, profitability, recruiting, and team development. Provides hands-on technical direction across source-code security work, determines investments in tooling and methodologies, and integrates AI-assisted auditing and research into team workflows. The role also owns practice P&L and supports engineers’ conference, publication, and open-source contributions.

Provide tax preparation, planning, and advisory services for individuals and businesses holding bitcoin and digital assets. Prepare and file tax returns, calculate cost basis and gains/losses, advise on mining/staking/airdrop income, collaborate with advisors and estate planners, maintain compliance documentation, and contribute thought leadership through articles and webinars.

Design, build, test, and deploy smart contracts and decentralized applications. Maintain blockchain integrations and backend services, optimize for security and gas efficiency, contribute to architecture and technical strategy, conduct code reviews, mentor junior engineers, and collaborate with product, frontend, and security teams.

Lead and grow engineering teams building blockchain and Web3 products. Drive technical strategy, architecture, delivery, quality, hiring, mentoring, and engineering processes to ensure reliable product delivery and team scaling.

Design and implement smart contracts and blockchain-based applications, build backend integrations with blockchain networks, participate in architecture and security reviews, improve scalability and reliability, mentor engineers, and collaborate with product and design to ship production-ready Web3 products.

Lead end-to-end product development for Credify's web and WhatsApp chatbot platforms, define roadmap and API integrations with ERP and loan management systems, drive implementation with engineering and QA, build analytics and reporting, and mentor junior product staff while representing the product internally and externally.

Leads company strategy and operations directly with the CEO at an early-stage payments fintech. Owns planning, goals, operating cadence, executive and board materials, cross-functional execution, operational team management, service levels, staffing, escalations, and decision analysis including pricing, corridor economics, partnerships, and market entry. Partners with product on prioritization and market strategy while managing support, product operations, and compliance operations.

Design and optimize the builder funnel to attract, onboard, engage, and retain developers and founders. Run programs (hackathons, cohorts), create onboarding resources, analyze KPIs to improve conversion and retention, and build partnerships to expand the ecosystem for decentralized AI and blockchain innovation.