Hi, I'm a Mid-Level Software Engineer passionate about building scalable web applications and improving user experiences. I specialize in TypeScript, React, and Node.js, and love writing clean, maintainable code with strong testing practices. Collaboration and continuous learning are important to me as I enjoy working in teams and keeping up to date with the latest tech trends. I have hands-on experience with full-stack development, cloud deployments, and DevOps tools like Docker and Azure. I'm also skilled in UI/UX design, database optimization, and automation scripting, which helps me contribute effectively across the development lifecycle.

Catalin Pirtiu

Hi, I'm a Mid-Level Software Engineer passionate about building scalable web applications and improving user experiences. I specialize in TypeScript, React, and Node.js, and love writing clean, maintainable code with strong testing practices. Collaboration and continuous learning are important to me as I enjoy working in teams and keeping up to date with the latest tech trends. I have hands-on experience with full-stack development, cloud deployments, and DevOps tools like Docker and Azure. I'm also skilled in UI/UX design, database optimization, and automation scripting, which helps me contribute effectively across the development lifecycle.

Available to hire

Hi, I’m a Mid-Level Software Engineer passionate about building scalable web applications and improving user experiences. I specialize in TypeScript, React, and Node.js, and love writing clean, maintainable code with strong testing practices. Collaboration and continuous learning are important to me as I enjoy working in teams and keeping up to date with the latest tech trends.

I have hands-on experience with full-stack development, cloud deployments, and DevOps tools like Docker and Azure. I’m also skilled in UI/UX design, database optimization, and automation scripting, which helps me contribute effectively across the development lifecycle.

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Experience Level

Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
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Language

English
Fluent

Work Experience

Mid-Level Software Engineer at Go2Sim
September 1, 2024 - Present
Developed full-stack features and wrote tests for the existing web application; designed and optimized database structures for efficient data management; gathered requirements and feedback from stakeholders and users; created UI/UX wireframes and presented them to the management team; deployed with Docker and updated containers to the latest Docker Compose standards; released new features for both internal and external users; performed backend and frontend testing using React Testing Library and Jest; implemented validation for frontend and backend, along with CSS Modules; refactored React codebase into Functional Components and migrated to Redux Toolkit; strengthened TypeScript usage by creating custom types for reliability and strong typing; enhanced frontend and backend build systems for improved performance; developed shell scripts and implemented cron jobs for automation; supported the Lead Engineer in system design and problem-solving.
Junior Software Engineer at Symposium
September 30, 2024 - July 12, 2025
Built features and fixed bugs on the existing Next.js web application; conducted unit testing using React Testing Library and Jest; performed end to end (E2E) testing using Playwright; ensured web responsiveness using CSS; handled UX/UI tasks including Figma wireframing, prototyping, and building interfaces for web applications; demonstrated proficiency in modern frontend frameworks and technologies such as React; designed and implemented RESTful APIs using Node.js and Express; worked independently and collaboratively under the guidance of the company’s Tech Lead.
Junior Software Engineer at Independent Software Engineer
October 1, 2023 - July 12, 2025
Built full-stack web apps using TypeScript, Next.js, React, Node.js, Express.js, MongoDB and MySQL; designed and implemented RESTful APIs; utilized JavaScript OO programming; integrated frontend and backend frameworks and libraries ensuring interoperability; understood software algorithms and data structures; applied Agile methodologies; demonstrated strong problem-solving and communication skills; possessed in-depth knowledge of TypeScript, JavaScript, CSS, and HTML.
E-commerce Manager at Alpha Green Seven
April 30, 2022 - July 12, 2025
Led an e-commerce team responsible for product sourcing, listing, content creation, SEO, marketing, and shipping; conducted market research including competition analysis and product feasibility using JungleScout; managed supplier relations, payment terms and delivery logistics; optimized SEO utilizing Google Console, Google Analytics, Helium 10, Ahrefs, and Moz; executed digital marketing campaigns via Email marketing with Omnisend, PPC with Meta and Google; managed projects and team tasks effectively using Asana.
Mid-Level Software Engineer at Go2Sim
September 1, 2024 - Present
Develop full-stack features and write tests for the existing web application; design and optimize database structures for efficient data management; gather requirements and feedback from stakeholders and users; create UI/UX wireframes and present them to the management team; deploy with Docker and update containers to the latest Docker Compose standards; release new features for both internal and external users; perform backend and frontend testing using React Testing Library and Jest; implement validation for frontend and backend, along with CSS Modules; refactor React codebase into Functional Components and migrate to Redux Toolkit; strengthen TypeScript usage by creating custom types for reliability and strong typing; enhance frontend and backend build systems for improved performance; develop shell scripts and implement cron jobs for automation; support the Lead Engineer in system design and problem-solving.
Junior Software Engineer at Symposium
September 30, 2024 - July 14, 2025
Built features and fixed bugs on the existing Next.js web application; unit testing using React Testing Library and Jest; end-to-end testing using Playwright; ensured web responsiveness using CSS; involved in UX/UI: Figma wireframing, prototyping and building interfaces for web applications; proficient in modern frontend frameworks and technologies such as React; designed and implemented RESTful APIs using Node.js and Express; ability to work independently and in team environment; worked under the guidance and mentorship of the company’s Tech Lead.
Junior Software Engineer at Independent Software Engineer
October 1, 2023 - July 14, 2025
Built full-stack web applications using TypeScript, Next.js, React, Node.js, Express.js, MongoDB, and MySQL; designed and implemented RESTful APIs using Node.js and Express; experience with JavaScript OO programming language; integrated frameworks and libraries ensuring interoperability between frontend and backend; knowledge of software algorithms and data structures; familiarity with Agile methodologies; strong problem-solving and communication skills; in-depth knowledge of TypeScript, JavaScript, CSS, and HTML.
E-commerce Manager at Alpha Green Seven
April 30, 2022 - July 14, 2025
Led an e-commerce team: product sourcing, listing, content creation, SEO, marketing, shipping; conducted market research including competition and product feasibility; managed SEO using Google Console, Google Analytics, Helium 10, Ahrefs, Moz; handled digital marketing campaigns including email marketing with Omnisend, PPC with Meta and Google; used Asana for project management to assign, complete, and prioritise tasks.
Mid-Level Software Engineer at Go2Sim
September 1, 2024 - Present
Develop full-stack features and write tests for the existing web application. Design and optimize database structures for efficient data management. Gather requirements and feedback from stakeholders and users. Create UI/UX wireframes and present them to the management team. Deploy with Docker and update containers to the latest Docker Compose standards. Release new features for both internal and external users. Perform backend and frontend testing using React Testing Library and Jest. Implement validation for frontend and backend, along with CSS Modules. Refactor React codebase into Functional Components and migrate to Redux Toolkit. Strengthen TypeScript usage by creating custom types for reliability and strong typing. Enhance frontend and backend build systems for improved performance. Develop shell scripts and implement cron jobs for automation. Support the Lead Engineer in system design and problem-solving.
Junior Software Engineer at Symposium
September 30, 2024 - July 14, 2025
Building features and fixing bugs on the existing Next.js web application. Unit testing using React Testing Library and Jest. End to end (E2E) testing using Playwright. Web responsiveness using CSS. UX/UI: Figma wireframing, prototyping and building interfaces for web applications. Proficiency in modern frontend frameworks and technologies such as React. Experience in designing and implementing RESTful APIs using frameworks like Node.js and Express. The ability to work independently as well as in a team environment. Working under the guidance and mentorship of the company’s Tech Lead.
Junior Software Engineer at Independent Software Engineer
October 1, 2023 - July 14, 2025
Building full-stack web apps using TypeScript, Next.js, React, Node.js, Express.js, MongoDB and MySQL. Experience in designing and implementing RESTful APIs using frameworks like Node.js and Express. Experience with JavaScript OO programming language. Integrate frameworks and libraries, ensuring seamless interoperability between frontend and backend. Understanding software algorithms and data structures. Familiarity with Agile methodologies. Strong problem-solving and communication skills. In-depth knowledge of TypeScript, JavaScript, CSS, and HTML.
E-commerce Manager at Alpha Green Seven
April 30, 2022 - July 14, 2025
Leading an e-commerce team: product sourcing, listing, content creation, SEO, marketing, shipping. Market Research: competition, product feasibility with JungleScout, suppliers, payment terms, delivery. SEO: Google Console, Google Analytics, keywords and content with Helium 10, Ahrefs and Moz. Digital Marketing: Email marketing with Omnisend, PPC with Meta and Google. Project Management: using Asana project management tool to assign, complete and prioritise tasks.
Mid-Level Software Engineer at Go2Sim
September 1, 2024 - Present
Develop full-stack features and write tests for the existing web application; design and optimize database structures; gather requirements and feedback from stakeholders; create UI/UX wireframes and present to management; deploy with Docker and update containers; release new features for internal and external users; perform backend and frontend testing; implement validation and CSS Modules; refactor React codebase into Functional Components and migrate to Redux Toolkit; strengthen TypeScript usage; enhance frontend and backend build systems; develop shell scripts and cron jobs for automation; support the Lead Engineer in system design and problem-solving.
Junior Software Engineer at Symposium
September 30, 2024 - July 14, 2025
Built features and fixed bugs on the existing Next.js web application; performed unit testing using React Testing Library and Jest; conducted end-to-end testing with Playwright; worked on web responsiveness using CSS; designed UX/UI wireframes and prototypes using Figma; proficient with modern frontend frameworks like React; designed and implemented RESTful APIs with Node.js and Express; worked independently and in team environments under Tech Lead mentorship.
Junior Software Engineer at Independent Software Engineer
October 1, 2023 - July 14, 2025
Built full-stack web apps using TypeScript, Next.js, React, Node.js, Express.js, MongoDB and MySQL; designed and implemented RESTful APIs; integrated frameworks and libraries; applied JavaScript OO programming; understood software algorithms and data structures; followed Agile methodologies; demonstrated strong problem-solving and communication skills; skilled in TypeScript, JavaScript, CSS, and HTML.
E-commerce Manager at Alpha Green Seven
April 30, 2022 - July 14, 2025
Led an e-commerce team covering product sourcing, listing, content creation, SEO, marketing, and shipping; conducted market research including competition analysis and product feasibility; managed SEO using Google Console, Google Analytics, Helium 10, Ahrefs and Moz; executed digital marketing via email campaigns and PPC on Meta and Google; managed projects using Asana for task assignment, prioritization and completion.
Mid-Level Software Engineer at Go2Sim
September 1, 2024 - Present
Develop full-stack features and write tests for the existing web application; design and optimize database structures for efficient data management; gather requirements and feedback from stakeholders and users; create UI/UX wireframes and present them to the management team; deploy with Docker and update containers to the latest Docker Compose standards; release new features for internal and external users; perform backend and frontend testing using React Testing Library and Jest; implement validation for frontend and backend, along with CSS Modules; refactor React codebase into Functional Components and migrate to Redux Toolkit; strengthen TypeScript usage by creating custom types for reliability and strong typing; enhance frontend and backend build systems for improved performance; develop shell scripts and implement cron jobs for automation; support the Lead Engineer in system design and problem-solving.
Junior Software Engineer at Symposium
September 30, 2024 - August 3, 2025
Built features and fixed bugs on the existing Next.js web application; performed unit testing using React Testing Library and Jest; conducted end-to-end testing using Playwright; ensured web responsiveness using CSS; worked on UX/UI including Figma wireframing, prototyping and building interfaces; proficient with modern frontend frameworks such as React; designed and implemented RESTful APIs using Node.js and Express; worked independently and collaboratively within a team; under guidance and mentorship of the company’s Tech Lead.
Junior Software Engineer at Independent Software Engineer
October 1, 2023 - August 3, 2025
Built full-stack web applications using TypeScript, Next.js, React, Node.js, Express.js, MongoDB, and MySQL; designed and implemented RESTful APIs; used JavaScript OO programming; integrated frameworks and libraries ensuring frontend-backend interoperability; understood software algorithms and data structures; followed Agile methodologies; demonstrated strong problem-solving and communication skills; proficient in TypeScript, JavaScript, CSS, and HTML.
E-commerce Manager at Alpha Green Seven
April 30, 2022 - August 3, 2025
Led an e-commerce team managing product sourcing, listing, content creation, SEO, marketing, and shipping; conducted market research including competition analysis and product feasibility; handled supplier relations, payment terms, and delivery; managed SEO using Google Console, Google Analytics, Helium 10, Ahrefs, and Moz; implemented digital marketing including email marketing (Omnisend) and PPC (Meta and Google); used Asana for project management to assign, complete and prioritize tasks.
Mid-Level Software Engineer at Go2Sim
September 1, 2024 - Present
Develop full-stack features and write tests for the existing web application; design and optimize database structures for efficient data management; gather requirements and feedback from stakeholders and users; create UI/UX wireframes and present them to management; deploy with Docker and update containers to the latest Docker Compose standards; release new features for internal and external users; perform backend and frontend testing using React Testing Library and Jest; implement validation for frontend and backend, along with CSS Modules; refactor React codebase into Functional Components and migrate to Redux Toolkit; strengthen TypeScript usage by creating custom types for reliability and strong typing; enhance frontend and backend build systems for improved performance; develop shell scripts and implement cron jobs for automation; support the Lead Engineer in system design and problem-solving.
Junior Software Engineer at Symposium
September 30, 2024 - August 3, 2025
Built features and fixed bugs on an existing Next.js web application; performed unit testing using React Testing Library and Jest; executed end to end testing using Playwright; ensured web responsiveness using CSS; contributed to UX/UI through Figma wireframing, prototyping, and building interfaces; proficient with modern frontend frameworks such as React; designed and implemented RESTful APIs with Node.js and Express; worked independently and collaboratively under guidance of the Tech Lead.
Junior Software Engineer at Independent Software Engineer
October 1, 2023 - August 3, 2025
Built full-stack web applications using TypeScript, Next.js, React, Node.js, Express.js, MongoDB, and MySQL; designed and implemented RESTful APIs; integrated frontend and backend frameworks and libraries; applied object-oriented JavaScript programming; applied knowledge of software algorithms and data structures; worked within Agile methodologies; demonstrated strong problem-solving and communication skills; developed expertise in TypeScript, JavaScript, CSS, and HTML.
E-commerce Manager at Alpha Green Seven
April 30, 2022 - August 3, 2025
Led e-commerce team handling product sourcing, listing, content creation, SEO, marketing, and shipping; conducted market research for competition, product feasibility, suppliers, payment terms, and delivery; managed SEO using Google Console, Google Analytics, Helium 10, Ahrefs, and Moz; executed digital marketing through email marketing with Omnisend and PPC with Meta and Google; managed projects using Asana to assign, complete, and prioritize tasks.

Education

Bachelor (Honours) at Mechanical Engineering (Automotive)
October 1, 2004 - June 30, 2009
College Diploma at College of Mathematics and Informatics
September 1, 2000 - June 30, 2004
Bachelor (Honours) at Mechanical Engineering (Automotive)
October 1, 2004 - June 30, 2009
College Diploma at College of Mathematics and Informatics
September 1, 2000 - June 30, 2004
Bachelor (Honours) at Mechanical Engineering (Automotive)
October 1, 2004 - June 30, 2009
College Diploma at College of Mathematics and Informatics
September 1, 2000 - June 30, 2004
College at College of Mathematics and Informatics
September 1, 2000 - June 30, 2004
Bachelor (Honours) at Mechanical Engineering (Automotive)
October 1, 2004 - June 30, 2009
Secondary Education at College of Mathematics and Informatics
September 1, 2000 - June 30, 2004
Bachelor (Honours) Mechanical Engineering at College of Mathematics and Informatics
October 1, 2004 - June 30, 2009
College at College of Mathematics and Informatics
September 1, 2000 - June 30, 2004

Qualifications

QA Computer Science Bootcamp
November 1, 2022 - January 31, 2023
Azure Certification
January 11, 2030 - July 12, 2025
QA Computer Science Bootcamp
November 1, 2022 - January 31, 2023
Azure Certification
January 11, 2030 - July 14, 2025
QA Computer Science Bootcamp
November 1, 2022 - January 31, 2023
Azure Certification
January 11, 2030 - July 14, 2025
Bachelor (Honours) Mechanical Engineering (Automotive)
October 1, 2004 - June 30, 2009
QA Computer Science Bootcamp
November 1, 2022 - January 31, 2023
Azure Certification
January 11, 2030 - July 14, 2025
QA Computer Science Bootcamp
November 1, 2022 - January 31, 2023
Azure Certification
January 11, 2030 - August 3, 2025
QA Computer Science Bootcamp
November 1, 2022 - January 31, 2023
Azure Certification
January 11, 2030 - August 3, 2025

Industry Experience

Software & Internet, Retail, Professional Services, Consumer Goods, Computers & Electronics