Pavel Zaitsau

Staff Agentic Engineer @ ENDGAME 2026 - present

Building a carbon–silicon programming ecosystem.

Co-Founder @ Góra Print 2025 - 2026

Pet business building custom 3D-printed physical terrain models from open geospatial data. Combines cartographic data processing, terrain modeling, and small-scale manufacturing into an end-to-end product.

• Built a Python pipeline that turns open geospatial data (FABDEM, OpenStreetMap) into terrain models
• Built a toolchain to prep models for 3D printing
• Added an LLM-driven order flow: intake, payment, shipping

Tech Lead, AI / ML @ ADF Solutions, Inc 2022 - 2026

Forensic data analysis software appliance for law enforcement and cybersecurity teams. Designed the system from scratch and led its shift to AI-powered analysis - multiple ML pipelines and an on-prem RAG stack over seized-device data.

• Built multiple ML / AI and algorithm-driven data processing pipelines in Python on Apache Airflow - ingestion, enrichment, extraction, and indexing over large seized-device datasets
• Shipped a production on-prem RAG system with an LLM-agnostic backend - swap models and providers without touching the app; retrieval entirely in Elasticsearch with cross-encoder reranking and no separate vector database to operate; orchestrated in .NET with Semantic Kernel, answers cited to source, full data isolation and audit logging
• Tech lead for 5-9 engineers; system design from scratch - architecture, delivery, code review, and engineering standards
• Owned CI/CD end to end - build, test, and release pipelines for an air-gapped appliance, including reproducible offline builds and versioned deployments
• Shipped ML modules: speech-to-text, OCR, image classification, object detection, scene classification, person and age detection, document understanding, summarization, and social graph analysis
• Built the platform underneath: air-gapped Kubernetes appliance, .NET microservices and APIs, and the Elasticsearch indexing layer - ingestion, annotation, and case management

Software Engineer @ Ryanair 2021 - 2022

Schedule management system for one of Europe's largest low-cost carriers (100M+ passengers/yr). High-volume, latency-sensitive backend services.

• Designed microservices for flight scheduling at airline scale
• Migrated .NET 4.7 to .NET 6 with zero downtime
• Cut API response times through performance work
• Improved CI reliability and deploy frequency
• Built internal WPF tooling for scheduling operations

Tech Lead @ VEB Technologies 2020 - 2021

Integrated B2B fintech platform for a major Belarusian bank, built on a private cloud with 50+ interconnected microservices.

• Led development and QA for a B2B banking platform
• Designed architecture across 50+ microservices on private cloud
• Managed 5+ engineers; set up code review and testing
• Owned infra, CI/CD, and releases

Senior Software Engineer @ Domino's Pizza UK & Ireland 2019 - 2020

Multi-market high-performance e-commerce platform serving millions of orders across UK and Ireland.

• Shipped features on a high-traffic e-commerce backend
• Worked with stakeholders and QA across markets
• Mentored engineers; drove code quality

Senior Software Engineer @ Coral Technology 2017 - 2019

Cloud-based B2B platform for media distribution and ad sales, serving broadcast industry clients.

• Built modules for a cloud B2B media platform (Coral MSP)
• Built a load-testing system from scratch
• Drove code quality: reviews, UI tests, profiling
• Delivered features for the ad sales system

Senior Software Engineer @ Wolters Kluwer 2014 - 2017

SaaS governance, risk, and compliance (GRC) platform and HITRUST CSF integrated risk assessment tool.

• Built core GRC components: logging/search, encrypted data store
• Led architecture and code reviews; drove CI/CD and test automation
• Owned releases and support for the HITRUST CSF platform

Tech Lead @ Belarusian-Russian University 2012 - 2017

Public website and internal subsystems - built from scratch. Full ownership over 5 years: architecture, team, infrastructure, and delivery.

• Built the web portal and internal systems from zero: CMS, event hub, asset and schedule management
• Led the team across the full lifecycle
• Set up load balancing and CI/CD for high availability

Key Developer @ Netologic Inc. (Investars) 2011 - 2014

Investment analytics platform and mobile applications. Early-career, full-stack engineering.

• Delivered features for an investment analytics platform
• Built the mobile backend; worked across the codebase