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Bogdan Rotariu

@bogdanrotariu

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Senior Full Stack Engineer specializing in Angular/React and Node.js to build secure, scalable enterprise platforms.

Romania

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What I'm looking for

I’m looking to build enterprise, business-critical products—owning both front end and back end—modernizing platforms with microservices, real-time features, and AI while working in an agile team focused on security and reliability.

I’m a Senior Full Stack Engineer with 8 years of experience delivering enterprise web applications across healthcare, financial services, communication platforms, and e-commerce. I specialize in Angular, React, TypeScript, and Node.js, with a focus on building scalable, high-performance user experiences and business-critical systems.

In my current role, I architected and delivered an enterprise CRM and communication platform for high-volume call centre operations. I build modular front-end solutions with Angular and reactive patterns, and I implement backend services using Node.js, Express.js, RESTful APIs, GraphQL, and WebSockets—integrating Avaya PBX telephony workflows to enable real-time call routing and synchronized events.

I also modernize complex platforms through microservices, secure architectures, and cloud-native practices, supported by CI/CD and containerization. I’ve integrated AI-powered enterprise features using OpenAI API with RAG pipelines and vector search for intelligent knowledge retrieval, while ensuring production-level reliability through robust testing, performance tuning (PostgreSQL, MS SQL, MySQL), and secure access patterns like RBAC and OAuth2/OpenID Connect.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

SNI

Jan 2024 - Present (2 years 6 months)

Architected and delivered an enterprise CRM and communication platform for high-volume call-centre operations, including agent workflows, customer interaction management, and reporting. Built backend services with Node.js and RESTful APIs, and integrated real-time communications using WebSockets and Avaya PBX.

Angular React TypeScript Node RESTful APIs WebSockets GraphQL Avaya PostgreSQL RBAC Docker CI CD Microservices Event Driven Architecture OpenAI API RAG Vector Search

Front End Developer

Datashift

Apr 2020 - Dec 2023 (3 years 8 months)

Developed React dashboards and visualizations for bioinformatics data and built backend APIs using Nest.js and GraphQL. Migrated legacy components toward React and implemented authentication and data ingestion pipelines using OAuth2/OIDC and messaging tools.

Full Stack Developer

Quartz Matrix

Sep 2018 - Mar 2020 (1 year 6 months)

Built and enhanced enterprise e-commerce platforms using Node.js, Express.js, Angular, and React, including customer-facing applications and backend transaction processing. Modernized payment and order workflows and implemented asynchronous event-driven processing with Bull Queue and Redis.

React Developer

QHN Services Romania

Aug 2016 - Sep 2018 (2 years 1 month)

Developed interactive investment and financial dashboard applications using React and Next.js, including reusable components and real-time experiences with WebSockets. Improved usability and performance using responsive design, charting libraries, and front-end optimization techniques.