Waldemar Hornatkiewicz

Solution Architect | Platform Engineering | AI-Augmented R&D Pioneer

Warsaw, Mazowieckie, Poland

About

ABOUT Solutions Architect with 20+ years of experience building and scaling complex web ecosystems. I specialize in bridging the gap between high-level business vision and high-performance engineering, with a current focus on architecting AI-augmented development workflows. I believe architecture is a hands-on discipline. My transition from Software Development Manager to Solutions Architect has been driven by a commitment to "Engineering Excellence through Automation." I don’t just design systems; I build the platform and processes – from on-prem Kubernetes clusters to agentic AI frameworks – that empower teams to deliver at scale. CURRENT FOCUS: AI-AUGMENTED ENGINEERING I am pioneering the integration of Agentic AI (Claude Code) into the R&D lifecycle across multiple projects. By architecting custom, self-learning sub-agents for code reviews, refactoring, and technical specification writing, I am redefining developer experience (DX) and significantly reducing the "discovery-to-delivery" lead time. CORE COMPETENCIES • Solution Architecture: Expert in multi-tenant systems and "Specs-as-Code" methodologies. I focus on long-term scalability, data isolation, and turning business objectives into actionable technical blueprints. • Platform Engineering & GitOps: Deeply hands-on with the modern infrastructure stack (Kubernetes, ArgoCD, Helm, HashiCorp Vault). I specialize in managing self-hosted K8s environments and migrating large-scale legacy systems (150+ repos) to GitHub-native ecosystems. • Full-Stack Mastery: 20 years of expertise in the JavaScript ecosystem (Node.js, Vue.js, TypeScript). I lead the modernization of legacy front-end architectures into high-performance, maintainable frameworks. • Accessibility (WCAG) Expert: A vocal advocate for inclusive design, ensuring that complex software remains fully accessible and compliant with international standards. I thrive at the intersection of technical strategy and hands-on implementation, turning organizational turbulence into technical stability.

Experience

  • EG CheckWare ()
    • Solution Architect
      Sep 2025 - Present · 11 mos

      TECHNICAL STRATEGY & PRODUCT ALIGNMENT • Bridge between business goals and technical execution, translating objectives into detailed blueprints covering DB schema, API contracts, and UI architecture. • Primary technical authority for the product development unit, ensuring architectural alignment with long-term scalability and multi-tenant integrity. • Drive system quality through intensive architectural and code reviews across the product ecosystem. AI-AUGMENTED ENGINEERING (AGENTIC WORKFLOWS) • Cross-Project AI Ecosystem: Architected a standardized AI-assisted development workflow across multiple repositories using Claude Code and custom agentic frameworks. • Autonomous Development Agents: Engineered specialized AI sub-agents to handle complex workflows, including: • Refactoring Agents: Specialized in large-scale code modernization and architectural shifts. • Self-Learning Reviews: Improving feedback accuracy based on historical PR comments. • Spec-Writing Agents: Automating technical modeling and business scenario coverage. • Automated Documentation: Workflows generating technical release notes directly into Jira from merged PRs. • Lead evaluator for privacy-first AI adoption and power user of emerging LLM engineering tools. INFRASTRUCTURE & SYSTEM GOVERNANCE • GitHub Enterprise Migration: Lead architect for the transition of 150+ repositories from GitLab to GitHub; designed the CI/CD architecture via GitHub Actions and set organization-wide review standards. • IaC & GitOps Evolution: Orchestrated a comprehensive refactor of the IaC stack, modernizing ArgoCD branching strategies and centralizing shared Kubernetes (K8s) deployments. • Software Cataloging: Initiating the implementation of a centralized Software Catalog (Backstage) to improve system discoverability and developer self-service.

    • Lead Developer / Team Lead
      Dec 2023 - Sep 2025 · 1 yr 10 mos

      STRATEGIC TECHNICAL LEADERSHIP & TRANSITION • Technical Continuity: Acted as the primary technical anchor during the post-acquisition transition, maintaining system stability and architectural direction through a period of significant organizational change. • Specs-as-Code Ownership: Re-centered the development process on a "Specs-as-Code" methodology. Ensured version-controlled Markdown specifications remained the single source of truth for all requirements, peer reviews, and architectural alignment. • International Team Expansion: Scaled the engineering department by interviewing, hiring, and onboarding a new development unit in India, establishing shared standards and cross-regional collaboration. INFRASTRUCTURE & DEVSECOPS • GitOps Implementation: Hardened the delivery pipeline by implementing Argo CD and Helm templates to decouple CI from CD. Integrated HashiCorp Vault on on-prem Kubernetes (K8s), resulting in a highly reliable, automated deployment process. • DX & Tooling: Managed the full Developer Experience (DX) stack, including GitLab CI/CD, SonarQube, and custom internal CLI tools for automated releases. Authored comprehensive documentation to preserve system knowledge. ARCHITECTURAL MODERNIZATION • Multi-Tenant Architecture: Architected the transition to a multi-tenant system, enabling the platform to support complex hierarchical client structures (e.g., hospital departments) within a single instance. • Frontend Evolution: Led a major modernization of the frontend codebase, migrating legacy components to the Vue.js Composition API to improve maintainability and developer velocity. • AI R&D: Conducted "privacy-first" research into AI-assisted development, benchmarking agentic workflows and LLM-based CLI tools to optimize productivity while maintaining strict data security.

  • CheckWare Poland (9 yrs 11 mos)
    • Software Development Manager
      Feb 2022 - Dec 2023 · 1 yr 11 mos

      • Lead end-to-end software development across multiple areas, including backend, frontend, app development, software architecture, testing, accessibility, performance optimization, scalability, integration capabilities, and security, ensuring cohesive team alignment and high quality deliverables. • Manage and strategically plan development capacity, balancing project timelines and resource allocation to maximize efficiency and team productivity. • Recruit and build high-performing development teams, actively participating in the hiring process to ensure a strong technical and cultural fit within the organization. • Oversee software maintenance and updates, ensuring systems remain robust, secure, and in line with the latest technology trends. • Direct new software development initiatives, from ideation to delivery, coordinating crossfunctional teams and prioritizing features to meet business objectives. • Ensure continuous improvement of software specifications, collaborating with product and technical teams to keep documentation and requirements aligned with evolving project scopes. • Spearhead release and defect management, leading teams through troubleshooting and deployment processes, ensuring timely and smooth product launches. • Collaborate cross-departmentally, assisting in areas like product management, customer support, and business strategy to align technical solutions with broader organizational goals.

    • Senior Front-End Developer
      Feb 2014 - Dec 2023 · 9 yrs 11 mos

      • Lead the development and maintenance of the CheckWare Assessment Solution single-page application, ensuring the platform remains innovative, scalable, and aligned with industry standards. • Establish and enforce team guidelines, including coding standards, code reviews, communication protocols, and development methodologies, fostering a culture of collaboration and technical excellence. • Interview and mentor new team members, contributing to the recruitment process and ensuring seamless onboarding and skill development. • Set and align technical goals for the team, driving continuous improvement and ensuring alignment with long-term business objectives. • Oversee codebase modernization, transitioning legacy systems to modern technologies and ensuring compliance with the latest industry practices. • Lead new feature development, translating business specifications into technical solutions using modern design patterns and ensuring ongoing discovery and innovation. • Monitor and improve software quality, addressing technical debt, cyclomatic complexity, and cognitive complexity to optimize team performance and product stability. • Maintain up-to-date architecture, ensuring it evolves with current requirements and best practices. • Design and develop technical solutions, from business specification analysis to implementing REST APIs, user stories, and component diagrams that meet the needs of various stakeholders. • Manage and optimize development tooling, including GitLab, SonarQube, Sentry, and custom in-house tools to streamline day-to-day tasks and improve overall productivity. • Ensure comprehensive documentation for software solutions, aiding in knowledge sharing and ongoing team development. Technology Stack: • Languages & Frameworks: ES2015/ES6+, Vue.js, Webpack + Module Federation, Node.js, Prisma, RabbitMQ, Bree.js, Sass. • Testing & QA: Mocha, Chai, Sinon. • Web Standards & Accessibility: HTML5, CSS3, Responsive Web Design (RWD), WCAG, ARIA.

  • Senior Front End Developer at The One-Page Company
    Mar 2013 - Jan 2014 · 11 mos

    • Developed and maintained the 1-Page single-page application, ensuring scalability and performance. • Conducted thorough code reviews and manage code in Gerrit, maintaining high code quality and team standards. • Utilized technologies such as Angular.js, Sass + Compass, Node.js, and testing frameworks like Karma + Jasmine. • Leveraged tools including JIRA, Gerrit, Jenkins, and Ant.

  • Front-End Specialist Software Developer at Hoffmann-La Roche
    Aug 2010 - Mar 2013 · 2 yrs 8 mos

    • Developed and maintained a wide array of websites and portals on the ATG and Adobe CQ5 platforms, focusing on bug fixing and feature enhancements. • Ensured cross-browser compatibility, including mobile optimization, to improve user experience across devices. • Participated in code reviews, contributing to best practices and maintaining high code quality within the team. • Collaborated with the recruitment team by evaluating candidates’ technical assessments and providing insights on potential hires. • Offered technical expertise and support to fellow developers and testers, fostering a collaborative and productive environment. • Managed and enhanced the internal developer environment and tools, including Ubuntu server administration and tool development in PHP and Node.js.

  • Front-End Web Developer at Team Solutions
    Nov 2009 - Aug 2010 · 10 mos

    • Created dynamic and user-friendly event pages to enhance user engagement and event visibility. • Developed rich front-end applications for high-traffic web platforms within a Microsoft .NET MVC environment, ensuring optimal performance and user experience. • Provided technical knowledge and support to the development team, contributing to a collaborative and efficient work environment.