Andrei K.

Iron Software builds developer tooling for .NET, including IronPDF, the HTML-to-PDF library now exceeding 5M+ NuGet downloads.

• Rebuilt the IronPDF library on a new architecture, creating the foundation for the product that surpassed 5 million NuGet downloads.
• Scaled the engineering team from a single developer to eight engineers, leading hiring, onboarding, mentoring, and day-to-day technical leadership.
• Established enterprise-grade engineering practices from the ground up, including CI/CD pipelines, code reviews, release management, and requirements tracking.
• Transformed single-maintainer libraries into an enterprise product suite adopted by Fortune 500 organizations and generating multi-million-dollar revenue.

Poq is a SaaS app-commerce platform powering native shopping apps for 50+ retailers including HotTopic, WestMarine, and e.l.f., serving millions of shoppers.

• Launched more than 10 major retail clients on the platform, achieving the highest number of successful client launches by a Backend Tech Lead in the company's history.
• Led the migration to API-first integrations and a Backend-for-Frontend (BFF) architecture, eliminating weeks-long data import cycles and reducing per-client customization from weeks to days.
• Designed and delivered a reusable Backend SDK that was adopted across engineering teams, eliminating per-client microservice deployments and reducing overall system latency.
• Drove the architectural evolution from a legacy monolith to microservices and ultimately to a Backend-for-Frontend (BFF) architecture, enabling independent service scaling and increasing engineering velocity.
• Owned the entire backend product lifecycle, from discovery and solution design to deployment, observability, and production support, consistently delivering profitable client launches while comparable projects exceeded budget.
• Optimized critical customer-facing workflows, including basket, promotions, and checkout, ensuring high performance and reliability as platform traffic continued to grow.

Independent senior backend engagements across blockchain, fintech, and systems engineering for clients including ServiceChannel, OxyLeads, and Confirmation Labs.

• Delivered two DeFi products, Bloqboard and LoanScan, within a one-month deadline by resolving issues with anonymous event parsing in Nethereum and coordinating upstream fixes with the project's maintainer.
• Designed and implemented a Twilio IVR system for work order lifecycle management that handled thousands of daily calls, supported multiple languages, and achieved 100% test coverage.
• Improved API response times by 5× through performance profiling with dotTrace and JMeter, followed by the implementation of a prioritized refactoring plan.
• Delivered multiple client projects approximately 20% ahead of schedule and under budget by aligning requirements early and maintaining proactive stakeholder communication.

Adform is an adtech company operating a large-scale Data Management Platform processing billions of ad events per day across Europe.

• Developed and owned key components of a Data Management Platform that processed billions of advertising events daily using Web API 2, OWIN, Redis, Amazon Redshift, and Aerospike.
• Designed and implemented a cross-platform revenue tracking solution that provided the first unified view of product earnings across the platform.
• Built zero-downtime continuous delivery pipelines using TeamCity, PowerShell, and Puppet, enabling multiple production releases per week instead of monthly release cycles.
• Managed staging and production environments, monitored platform health, and handled on-call incidents for a large-scale system serving major advertising agencies and enterprise customers.

VRP Consulting delivers large-scale enterprise software, including finance and grants-management systems for major US foundations and enterprises.

• Delivered WCF services and web apps for Fox Entertainment, Certiport, and Cornerstone/PwC

• Owned full front-end and middle-tier delivery on the Hewlett Foundation grants-management system, one of the largest US foundations

• Built large-scale finance and grants-management systems using Silverlight, WCF, and SQL Server

• Owned architecture, mentoring, and the full delivery cycle across client engagements

EPAM Systems is a global software engineering and IT services company delivering enterprise applications across industries.

• Built WPF and Silverlight applications for WeatherBug, S&P, and New York Life

• Developed CRM tooling and an internship portal serving 10K+ employees

• Delivered backend and UI features for the Sportingbet gambling platform

• Built a high-traffic web portal and internal Outlook CRM plugin using ASP.NET MVC and WPF