Available to hire
I’m Ciprian M. Cirstea, a mobile and web developer with 17+ years of experience building production-grade applications, especially with Flutter and modern JavaScript/React. I enjoy turning complex user workflows into smooth, reliable software—whether it’s offline-first mobile systems, real-time dashboards, or intuitive multi-step experiences with strong validation and state management.
In my recent work, I’ve helped engineer production autonomous AI agent systems using Claude Code and LLM engineering practices, focusing on cost/reliability controls, tool allowlisting, and safe human-in-the-loop approvals. I also build operational automation—like knowledge-base driven Slack bots and monitoring dashboards—to help teams resolve issues faster, while keeping data boundaries (including PII handling) practical and scalable.
Skills
Experience Level
Expert
Expert
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Expert
Expert
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Expert
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Expert
Intermediate
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Intermediate
Language
English
Fluent
Romanian, Moldavian, Moldovan
Fluent
Work Experience
Flutter Developer & AI Agent Systems Engineer at NB1 Health
October 1, 2025 - PresentArchitect and develop a comprehensive, multi-platform Flutter mobile application for health assessment workflows, including real-time validation, conditional rendering, multi-step progress tracking, and intelligent missing-field detection with navigation across incomplete sections. Build dynamic YAML-schema-driven reusable form components, custom validation patterns, and responsive UI for iOS/Android. Integrate Firebase Authentication (Email/Password, Google, Apple) with secure token management and session persistence. Implement offline-first order management with Firestore background synchronization for resilience to connectivity disruptions. Use Riverpod for a scalable state-management architecture with clean separation of concerns and dependency injection. Create a reusable UI component library with centralized styling (e.g., StyledText, CustomTextField, Accordion). Coordinate REST API integration with token handling and config management. Build and operate a fleet of 21 always-on a
Flutter Developer at NB1 Health
October 1, 2025 - PresentArchitect and develop a comprehensive mobile application using Flutter, implementing complex workflows with real-time validation and offline-first architecture.
Web & Mobile App Developer at IBM
April 30, 2025 - July 29, 2025Conceptualized, planned, and coded applications using ReactJS, NodeJS, Angular, and Carbon Components. Served as lead designer for UI and front-end forms and logic, including features for create, edit, and view. Developed an automated GitHub repository tool to improve client web flow, built reusable web components using Stencil.js across multiple frameworks, and was a key developer for the internal salesperson bonus application and CMS for online education courses and media repositories. Engaged in daily meetings with the U.S. Project Management team.
Web & Mobile App Developer at IBM – Bucharest, Romania
April 30, 2025 - July 14, 2025Conceptualized, planned, and coded applications using ReactJS, NodeJS, Angular, and Carbon Components. Led UI and front-end forms design, improving client web flow with a GitHub automation tool. Built reusable web components with Stencil.js for multiple frameworks, securing funding for additional resources. Key developer for internal salesperson bonus applications and internal CMS for online education and media. Collaborated daily with the US Project Management team.
WordPress Developer (Contractor) at Ahuno Corp (formerly WH&D)
May 1, 2024 - July 29, 2025Provided WordPress development services including theme customization and site optimization for clients.
WordPress Developer (Contractor) at Ahuno Corp (formerly WH&D) – Brooklyn, New York
May 1, 2024 - July 14, 2025Managed WordPress development work on contract basis.
Flutter Developer (Contractor) at SETJOBS.APP
October 1, 2023 - PresentDeveloped mobile applications using Flutter, focusing on cross-platform development for iOS and Android with state management and Firebase integrations.
Flutter Developer (Contractor) at SETJOBS.APP – Bucharest, Romania
October 1, 2023 - PresentFlutter development for mobile applications with cross platform publishing including iOS and Android.
Web & Mobile App Developer at IBM
May 1, 2018 - April 1, 2025Conceptualized and developed applications using various frameworks including ReactJS and NodeJS, enhancing web flow through automated tools.
Full Stack Web Development at STREAMARK
May 1, 2018 - July 29, 2025Developed, created, and troubleshot PHP, MySQL, and HTML-based applications. Implemented and hosted on-premise Linux servers and tested/analyzed media streaming service projects.
Full Stack Web Development at Streamark – Bucharest, Romania
May 1, 2018 - July 14, 2025Developed, created, and troubleshot PHP, MySQL, and HTML applications. Implemented and hosted on-premise Linux servers and tested media streaming projects.
Full Stack Web Development at STREAMARK
August 1, 2016 - May 31, 2018Designed and troubleshot PHP, MySQL, and HTML-based applications. Implemented and hosted on-premise Linux servers. Tested and analyzed projects supporting media streaming services.
Full Stack Web Developer at STREAMARK
August 1, 2016 - May 1, 2018Designed and troubleshot PHP and HTML-based applications, performing implementation and hosting on Linux servers.
WordPress Developer (Contractor) at TECHPEK SRL
August 1, 2016 - July 29, 2025Installed and managed company website using WordPress themes and Google Analytics to enhance company profile and listing.
WordPress Developer (Contractor) at Techpek SRL – Bucharest, Romania
August 1, 2016 - July 14, 2025Installed and managed company website using WordPress themes and Google Analytics to improve company profile and listing.
WordPress Developer (Contractor) at TECHPEK SRL
March 1, 2012 - August 1, 2016Installed and managed company websites using WordPress themes and Google Analytics.
WordPress Developer (Contractor) at SEO BPO
March 1, 2012 - July 29, 2025Improved traffic to client websites using Link Farm Evolution and related tools for backlinks and paid advertising campaigns.
WordPress Developer (Contractor) at SEO BPO – Bucharest, Romania
March 1, 2012 - July 14, 2025Improved website traffic for content creators using Link Farm Evolution and similar tools.
WordPress Developer (Contractor) at SEO BPO
October 1, 2011 - March 31, 2012Contract work supporting WordPress development (details not specified in the resume beyond the role and time period).
Search Engine Optimization Specialist at TWO POINT OH
October 1, 2011 - July 29, 2025Managed multi-user installation and maintenance of 120 WordPress blogs, achieving an average 60% increase in website traffic.
Search Engine Optimization Specialist at Two Point Oh – Bucharest, Romania
October 1, 2011 - July 14, 2025Maintained and managed 120 WordPress blogs, increasing website traffic by about 60%.
Search Engine Optimization Specialist at Two Point Oh
May 1, 2010 - October 31, 2011Performed SEO and related marketing activities (details not specified in the resume beyond the role and time period).
Information Services Support Analyst at PHILLIP MORRIS
May 1, 2010 - July 29, 2025Analyzed and remediated Help Desk requests using HP Service Desk, managed company assets and Active Directory group access. Supported production systems including backup, maintenance, and provided training to over 100 factory employees.
Information Services Support Analyst at Phillip Morris – Bucharest, Romania
May 1, 2010 - July 14, 2025Handled Help Desk requests within SLA, managed company assets and Active Directory access, supported factory production systems, and trained over 100 employees.
Information Services Support Analyst at Phillip Morris
January 1, 2009 - May 31, 2010Provided IT support and services under the information services function (details not specified in the resume beyond the role and time period).
Information Services Technical Analysis at Phillip Morris
January 1, 2009 - July 29, 2025Provided technical analysis and support for information services.
Information Services Technical Analysis at Phillip Morris
May 1, 2008 - January 31, 2009Performed technical analysis work supporting information services operations (details not specified in the resume beyond the role and time period).
Web Designer/IT Specialist at SIdental
March 1, 2008 - July 29, 2025Designed websites and provided IT technical support.
Web Designer/IT Specialist at SIdental
August 1, 2007 - March 31, 2008Handled web design and IT specialist responsibilities (details not specified in the resume beyond the role and time period).
In-Store Computer Repair Technician at Staples
August 1, 2007 - July 29, 2025Performed computer repair and troubleshooting for customers.
WordPress Developer (Contractor) at Ahuno Corp (formerly WH&D)
March 1, 2006 - May 31, 2024Contract WordPress development (details not specified in the resume beyond the role and time period).
Education
Bachelor's at Universitatea Constantin Brancusi
September 1, 1994 - June 30, 1998Bachelor's at Universitatea Constantin Brancusi – TARGU JIU
September 1, 1994 - June 30, 1998Qualifications
Industry Experience
Software & Internet, Professional Services, Education, Manufacturing, Media & Entertainment, Healthcare, Computers & Electronics, Retail, Financial Services, Travel & Hospitality
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
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Expert
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Expert
Intermediate
Intermediate
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Intermediate
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Intermediate
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Intermediate
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