Vitaly T.

As DoE, I scaled the organization and platform through rapid growth and a successful acquisition by Shift4. I led the transition from a fast-scaling startup to a high-availability enterprise system, while managing a distributed, cross-functional engineering team across North America, Europe, and Latin America. I collaborated closely with Product, Sales, Marketing, Onboarding, and Operations to align technology delivery with evolving business priorities. Impact: • Scaled the donation platform to support $90M+ in annual donation volume, serving 1000+ nonprofits with 99.99% uptime. • Grew the engineering team from 1 to 30 professionals across product development, QA, DevOps, and support, enabling the company to expand into three new market segments. • Designed a hiring pipeline that reduced time-to-hire by 50% and promoted internal talent into leadership roles, including team leads and a QA manager. • Transitioned teams from Asana to Jira, introducing two-week sprints and Kanban for non-core teams, improving velocity by 30%, reducing lead time by 25%, and increasing sprint completion from 70% to 95%. • Reduced lead time for changes (commit to production) from 5 to 3 days, independently of sprint cycles. • Implemented backlog refinement, burndown tracking, and stakeholder visibility, providing accurate forecasts and reducing sprint scope changes by 30%. • Reduced production bugs by 25% through monthly tracking and code quality initiatives. • Led technical due diligence and aligned engineering strategy with EBITDA targets during acquisition. • Post-acquisition, merged infrastructure into corporate systems, reducing software spend by 20% ($200K+ annually) and headcount by 10% while maintaining velocity. • Led adoption of a security-focused CI/CD pipeline with Snyk, ensuring zero critical vulnerabilities in production and successful security audits. Stack: AWS, Node.js, React, GraphQL, MongoDB, Docker, Kubernetes, GitLab CI/CD, Terraform, Snyk

Joined The Giving Block as the first technical hire. I built the initial platform, established the engineering foundation, and scaled the technical team and platform through early product-market fit, Seed, and Series A stages. Scope & Impact: • Successfully delivered the crypto donation MVP platform, enabling the onboarding of the first nonprofit clients and supporting early revenue traction. Integrated Gemini Exchange APIs to support crypto donations in 25+ currencies with instant USD conversion options. • Led and architected the transition to a microservices architecture, enabling independent scaling of critical business functions and reducing new feature deployment time by 65%. Built cloud-native infrastructure and DevOps processes, including CI/CD pipelines and migration to AWS (EC2, Route 53, Load Balancers with HTTPS redirects), enhancing platform reliability and security. Leveraged Terraform for Infrastructure-as-Code, standardizing environments and reducing configuration errors by 40%. Hands-on. • Designed scalable systems with optimized performance through caching, indexing, query optimization, and load balancing techniques. • Conducted comprehensive security risk reviews and implemented risk mitigation strategies and security practices to ensure system integrity. • Established engineering workflows and Agile delivery practices from inception, adopting 12-factor methodology to ensure scalability, maintainability, and performance across systems. Fostered a fast-paced, collaborative environment focused on ownership and delivery. • Built and led the early engineering team from scratch — hiring, onboarding, and mentoring developers, while shaping a culture of technical ownership, resilience, and alignment with business goals. Delivered high-quality software on time while scaling team capabilities and cross-functional collaboration. Stack: AWS, Node.js, React, GraphQL, MongoDB, Docker, Terraform, Gemini APIs

Contributed to the development of key APIs, infrastructure components, and frontend experiences within the Dash cryptocurrency ecosystem. Collaborated with distributed teams to improve system performance, usability, and integration capability. Impact: • Developed blockchain APIs to streamline third-party integrations, reducing integration time by 70%. • Optimized Docker-based infrastructure and image processing pipeline, achieving 10x performance improvement. • Enhanced mobile wallet experience (React Native), contributing to significant growth in user adoption. Stack: Node.js, React, React Native, Docker, Ruby on Rails, REST APIs

Worked on a high-scale e-commerce platform within Alibaba Group, contributing to secure, reliable frontend infrastructure and team mentoring. Impact: • Built ReactJS-based secure checkout & payment UI, improving transaction reliability and user satisfaction. • Introduced automated quality checks, reducing production bugs by 30% and improving code maintainability. • Mentored junior developers, boosting their delivery speed and helping standardize team-wide best practices. Stack: ReactJS, Redux, JavaScript (ES6), REST API, Git

• Developed front-end systems for internal information system and landing pages using AngularJS and Twitter Bootstrap. • Optimized speed and performance, conducted browser testing, and debugged issues. • Created marketing email templates and supported corporate website for Siberian Health Corp. Stack: AngularJS, NodeJS

• Developed front-end for internal management system for pizzeria network with 14 user roles and online revenue tracking. • Optimized project speed/performance, developed search functionality, and worked extensively with graphs and tables. • Constructed interface for multiple management roles, enhancing efficiency and accuracy in daily operations. Stack: AngularJS, .NET

As a software engineer at Romza, I developed plugins, templates, and program modules for the Bitrix Marketplace. I optimized client websites for speed and performance, implemented advanced smart filtering systems, and delivered customized solutions for more than 50 customer projects.