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Staff/Lead-level Frontend Engineer and Software Architect with 8+ years building product-grade web applications. I own frontend architecture end to end, set engineering standards for other teams, and turn complex product and AI workflows into fast, accessible interfaces. Specialist in React, Next.js, and TypeScript with deep expertise in rendering strategy, web performance, design systems, and integrating LLM/ML capabilities into production experiences under strict GDPR, security, and reliability constraints.…Staff/Lead-level Frontend Engineer and Software Architect with 8+ years building product-grade web applications. I own frontend architecture end to end, set engineering standards for other teams, and turn complex product and AI workflows into fast, accessible interfaces. Specialist in React, Next.js, and TypeScript with deep expertise in rendering strategy, web performance, design systems, and integrating LLM/ML capabilities into production experiences under strict GDPR, security, and reliability constraints.

Hilary OgalagU

Full Stack Developer, Developer, AI Engineer, +7

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Staff/Lead-level Frontend Engineer and Software Architect with 8+ years building product-grade web applications. I own frontend architecture end to end, set engineering standards for other teams, and turn complex product and AI workflows into fast, accessible interfaces. Specialist in React, Next.js, and TypeScript with deep expertise in rendering strategy, web performance, design systems, and integrating LLM/ML capabilities into production experiences under strict GDPR, security, and reliability constraints.…Staff/Lead-level Frontend Engineer and Software Architect with 8+ years building product-grade web applications. I own frontend architecture end to end, set engineering standards for other teams, and turn complex product and AI workflows into fast, accessible interfaces. Specialist in React, Next.js, and TypeScript with deep expertise in rendering strategy, web performance, design systems, and integrating LLM/ML capabilities into production experiences under strict GDPR, security, and reliability constraints.

Available to hire

Staff/Lead-level Frontend Engineer and Software Architect with 8+ years building product-grade web applications. I own frontend architecture end to end, set engineering standards for other teams, and turn complex product and AI workflows into fast, accessible interfaces.

Specialist in React, Next.js, and TypeScript with deep expertise in rendering strategy, web performance, design systems, and integrating LLM/ML capabilities into production experiences under strict GDPR, security, and reliability constraints.

Skills

Experience Level

Expert

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Intermediate

Intermediate

Language

English

Fluent

German

Advanced

Work Experience

Senior Frontend, Data & AI Engineer at PinkTum (Pink University GmbH)

April 1, 2024 - Present

Own end-to-end frontend architecture for an AI-powered enterprise learning platform, defining the component, state, and rendering strategy across the product. Design and ship data-driven UI systems to visualize LLM/ML model outputs, making model behavior interpretable through interactive experiences. Architect integration of AI services (OpenAI APIs) into production workflows under strict security, privacy, and GDPR constraints. Establish frontend engineering standards (performance budgets, security baselines, technical documentation) and drive rendering/data-loading optimizations. Partner with data/ML engineers to operationalize models and experiments from prototype to production.

Senior Frontend Data & AI Engineer at PinkTum

April 1, 2024 - Present

Owner of the frontend architecture for an AI-powered learning platform. Developed data-driven UI components to visualize LLM and ML model outputs. Integrated AI services (OpenAI APIs) into production user workflows with strong security and privacy considerations. Collaborated with data and ML engineers to integrate models, APIs, and feature experiments. Improved frontend performance through targeted refactorings and efficient rendering strategies. Introduced frontend security standards and technical documentation to support fast iteration.

Frontend Data & AI at Pink University

April 1, 2024 - Present

Lead coder reviews and debugging processes to ensure adherence to coding standards and security practices. Participate in project planning and estimation, delivering high-quality results aligned with security protocols. Developed advanced web applications with a focus on responsive design and user experience.

Full Stack Developer at Pink University

April 1, 2024 - Present

Frontend Data & AI at Pink University

April 1, 2024 - Present

Led code reviews and debugging processes to ensure adherence to coding standards and security practices. Participated in project planning and estimation, delivering high-quality results aligned with security protocols. Developed advanced web applications focusing on responsive design and user experience.

Frontend Data & AI at Pink University

April 1, 2024 - Present

Lead code reviews and debugging processes to ensure adherence to coding standards and security practices. Participate in project planning and estimation, delivering high-quality results aligned with security protocols. Developed advanced web applications with a focus on responsive design and user experience.

Full Stack Developer at Ald Automotive

March 31, 2024 - August 4, 2025

Managed development milestones and delivered user-centric websites while ensuring compliance with security standards. Conducted security assessments and implemented measures to enhance system integrity and performance. Collaborated with cross-functional teams to translate user requirements into effective project designs.

Full Stack Developer at Ald Automotive

March 31, 2024 - July 29, 2025

Full Stack Developer at Ald Automotive

March 1, 2024 - September 16, 2025

Managed development milestones and delivered reduced user-centric websites while ensuring compliance with security standards. Conducted security assessments and implemented measures to enhance system integrity and performance. Collaborated with cross-functional teams to translate user requirements into effective project designs.

Full Stack Developer at Ald Automotive

March 1, 2024 - September 16, 2025

Full Stack Engineer at Ntrade

October 1, 2022 - March 1, 2024

Built and operated a trading platform with high performance and availability requirements. Designed and implemented APIs and backend workflows. Independently analyzed and resolved production performance bottlenecks. Documented architectural decisions to enable faster and safer iteration. Worked closely with product management in a fast-paced startup environment.

Full Stack Developer at ALD Automotive

June 1, 2022 - March 1, 2024

Contributed to long-lived internal core systems with high business impact. Migrated a Java-based monolith to a microservices architecture. Applied Domain-Driven Design to define bounded contexts and service boundaries. Built and maintained an Nx monorepo to improve code sharing, consistency, and developer experience. Implemented multiple backend services using Node.js and TypeScript. Delivered features end-to-end (API design, backend, React frontend). Took ownership of GDPR-related processes including audit logs, access control, and data lifecycle management. Diagnosed and resolved production issues across multiple system layers.

Software Engineer at Dps Engineering

May 31, 2022 - August 4, 2025

Designed robust solutions for client requirements, focusing on functionality, scalability, and security. Reviewed project specifications and developed technology solutions that exceeded performance expectations. Designed a comprehensive data management system with automated checks and peer reviews to ensure data accuracy.

Software Engineer at Dps Engineering

May 31, 2022 - July 29, 2025

Software Engineer at Dps Engineering

May 1, 2022 - September 16, 2025

Software Engineer at DPS Engineering

May 1, 2022 - September 16, 2025

Software Engineer at DPS Engineering

November 1, 2021 - May 1, 2022

Developed secure backend systems for enterprise applications. Built automated data validation and consistency checks. Contributed to architectural decisions and adoption of modern engineering practices.

Founder & IT Consultant / AI Engineer at Hizelus Engineering

January 1, 2018 - Present

Founded and operated an IT consulting and software engineering company focused on product-oriented web, cloud, and AI solutions. Built LLM-based applications including internal AI assistants, knowledge retrieval systems, and automation tools. Used LangChain, OpenAI APIs, embeddings, and vector databases to implement RAG architectures. Translated business requirements into scalable AI and software architectures. Designed, developed, and deployed full-stack applications using modern frameworks and cloud platforms. Owned the full project lifecycle including planning, estimation, implementation, testing, and production rollout. Conducted code reviews to ensure code quality, maintainability, and architectural consistency. Built and operated cloud infrastructure with security baselines, deployment strategies, and performance optimization.