ROBERT IONUȚ FUNDULEA

Back-End Specialist • Java / Node.js • React/Next • Python

Professional Summary

Mid-level software engineer (3+ yrs) who modernised high-throughput email-validation services at ZeroBounce and now designs full-stack Next.js solutions for SMEs. Delivers clean, test-driven code, AI-accelerated development and DevOps-as-code. Seeking remote/hybrid back-end roles where Java or Node meets React.

Key Achievements
  • Boosted Java email-validation engine throughput 15% by adopting non-blocking I/O and optimising GC.
  • Cut customer-support escalations 25% by automating API documentation and Slack alerting.
  • Shipped 3 production web apps in <2-week MVP cycles, holding API P95 latency under 250 ms.
  • Resolved 1000+ API & deliverability issues; knowledge-base updates lowered recurring tickets 18%.
Technical Stack

Languages:

JavaPythonJavaScript/TypeScriptC++C#PHP

Back-End:

Next.jsNode.jsExpressJava (Spring Boot)DjangoFlaskLaravelASP.NET

Front-End:

ReactAngularVanilla HTML+CSS+JSTailwind CSS

Databases:

PostgreSQLOracleMySQLMongoDBSQLperformance tuningreplication

DevOps & Cloud:

DockerGitCI/CDLinuxAWS S3VercelcPanel

Practices:

SOLIDClean CodeTDD (100+ unit/integration tests)monitoring & alertsAI-assisted coding + Prompt Engineering
Professional Experience

Independent Software Engineer

PFA

2023 – 2025
  • Delivered three end-to-end client web apps (roofing services, construction firm, translation agency blog) using Next.js or Sitejet, shipping each MVP inside 2 weeks and providing ongoing maintenance.
  • Implemented authentication, Stripe payments and role-based dashboards; kept REST API P95 latency below 250 ms with cache methods and efficient code.
  • Owned full DevOps lifecycle and shared hosting; achieved 100% automated, zero-downtime deployments.

Software Engineer

ZeroBounce.net

2020 – 2022
  • Modernized Java email-validation engine with non-blocking I/O; increased request throughput 15% and trimmed average response time 100 ms.
  • Extracted monolith features into micro-services (data sync, captcha bypass) backed by >300 unit/integration tests achieving 90% coverage.
  • Automated API documentation (OpenAPI) and Slack error alerts; reduced escalated support tickets by 25%.
  • Partnered with Support & QA to slash bug-to-fix cycle time from 10 to 3 days.

Technical Support Engineer

ZeroBounce.net

2018 – 2020
  • Diagnosed and resolved 300+ customer cases (API, DNS, email deliverability).
  • Authored knowledge-base articles that cut recurring tickets 18%.
  • Channeled customer feedback to the dev team, accelerating high-impact fixes.
Selected Projects

La Succes

Productivity suite for notes, goals & tasks, Next.js and React, test and prod environments, project-based, A.I usage via Vercel SDK Wrapper and auth.

GTSTraduceri Blog and Website

Client project, website made with HTML5, CSS5 and Tailwind, blog made with React, Next.js and MySQL.

StructoDesign Consulting

Client project, website made with React, Next.js, contains auth, admin panel with ability to add new projects, storage for project images.

Gaming Blog

Multi-user blogging platform with admin panel (Next.js, React).

• Full list on GitHub and portfolio.
Education

M.Sc. Databases & Software Technologies

University of Bucharest

2020 – 2022

Dissertation: Quantum-resistant cryptographic algorithm combining B24 & RSA.

B.Sc. Computer Science

Titu Maiorescu University, Bucharest

2017 – 2020

Thesis: Custom sorting algorithm with Unity demo.

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