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I'm Hilary Ogalagu, a Senior Full Stack Engineer, Software Architect, and AI Engineer focused on product development, AI-powered systems, and distributed architectures. I have a track record of migrating complex enterprise systems from monolithic legacy applications to modern microservice architectures and building AI-enabled features. I'm an hands-on contributor with ownership across architecture, implementation, operation, and optimization, with experience delivering LLM-based applications in fast-paced product and startup environments. I specialize in TypeScript/Node.js/React, LangChain, OpenAI APIs, prompt engineering, and domain-driven design, and I thrive at the intersection of product outcomes and solid software design. I am passionate about cloud-native systems, developer experience, security/compliance (GDPR), observability, and creating scalable, production-ready AI solutions such as retrieval-augmented generation and data exploration tools.…I'm Hilary Ogalagu, a Senior Full Stack Engineer, Software Architect, and AI Engineer focused on product development, AI-powered systems, and distributed architectures. I have a track record of migrating complex enterprise systems from monolithic legacy applications to modern microservice architectures and building AI-enabled features. I'm an hands-on contributor with ownership across architecture, implementation, operation, and optimization, with experience delivering LLM-based applications in fast-paced product and startup environments. I specialize in TypeScript/Node.js/React, LangChain, OpenAI APIs, prompt engineering, and domain-driven design, and I thrive at the intersection of product outcomes and solid software design. I am passionate about cloud-native systems, developer experience, security/compliance (GDPR), observability, and creating scalable, production-ready AI solutions such as retrieval-augmented generation and data exploration tools.

Hilary Ogalagu

Full Stack Developer, Developer, AI Engineer, +7

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I'm Hilary Ogalagu, a Senior Full Stack Engineer, Software Architect, and AI Engineer focused on product development, AI-powered systems, and distributed architectures. I have a track record of migrating complex enterprise systems from monolithic legacy applications to modern microservice architectures and building AI-enabled features. I'm an hands-on contributor with ownership across architecture, implementation, operation, and optimization, with experience delivering LLM-based applications in fast-paced product and startup environments. I specialize in TypeScript/Node.js/React, LangChain, OpenAI APIs, prompt engineering, and domain-driven design, and I thrive at the intersection of product outcomes and solid software design. I am passionate about cloud-native systems, developer experience, security/compliance (GDPR), observability, and creating scalable, production-ready AI solutions such as retrieval-augmented generation and data exploration tools.…I'm Hilary Ogalagu, a Senior Full Stack Engineer, Software Architect, and AI Engineer focused on product development, AI-powered systems, and distributed architectures. I have a track record of migrating complex enterprise systems from monolithic legacy applications to modern microservice architectures and building AI-enabled features. I'm an hands-on contributor with ownership across architecture, implementation, operation, and optimization, with experience delivering LLM-based applications in fast-paced product and startup environments. I specialize in TypeScript/Node.js/React, LangChain, OpenAI APIs, prompt engineering, and domain-driven design, and I thrive at the intersection of product outcomes and solid software design. I am passionate about cloud-native systems, developer experience, security/compliance (GDPR), observability, and creating scalable, production-ready AI solutions such as retrieval-augmented generation and data exploration tools.

Available to hire

I’m Hilary Ogalagu, a Senior Full Stack Engineer, Software Architect, and AI Engineer focused on product development, AI-powered systems, and distributed architectures. I have a track record of migrating complex enterprise systems from monolithic legacy applications to modern microservice architectures and building AI-enabled features. I’m an hands-on contributor with ownership across architecture, implementation, operation, and optimization, with experience delivering LLM-based applications in fast-paced product and startup environments.

I specialize in TypeScript/Node.js/React, LangChain, OpenAI APIs, prompt engineering, and domain-driven design, and I thrive at the intersection of product outcomes and solid software design. I am passionate about cloud-native systems, developer experience, security/compliance (GDPR), observability, and creating scalable, production-ready AI solutions such as retrieval-augmented generation and data exploration tools.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Rust

Intermediate

Golang

Intermediate

Language

English

Fluent

German

Advanced

Work 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 - July 29, 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.

Software Engineer at Dps Engineering

May 31, 2022 - July 29, 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.

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.

Full Stack Developer at Ald Automotive

March 31, 2024 - August 4, 2025

Software Engineer at Dps Engineering

May 31, 2022 - August 4, 2025

Full Stack Developer 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 Ald Automotive

March 1, 2024 - September 16, 2025

Software Engineer at DPS Engineering

May 1, 2022 - September 16, 2025

Frontend Data & AI at Pink University

April 1, 2024 - Present

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.

Software Engineer at Dps Engineering

May 1, 2022 - September 16, 2025

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.

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.

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.

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.