Web app · 2023
Hangout
Real-time chat with direct messages, chat rooms and group video calls over a peer-to-peer WebRTC mesh.
- Vue
- TypeScript
- Express
- WebRTC
- WebSockets
- Prisma
- S3
- Cognito
- Amplify
- Docker
View project
Petrut Ivanoiu, Full-stack developer
Full-stack developer · Freelance
I build web apps, APIs and integrations for startups and small teams. By day I’m a developer at Visma, leading the cloud migration of a payroll-critical app. I started in operations, keeping business-critical systems running through night shifts, so I build software that’s easy to run and hard to break.
Contact
- petrut.ivanoiu@mailbox.org
- GitHub
- Resume (PDF)
- Sibiu, Romania
01 / Services
What I can build for you
Fixed-scope projects or ongoing work, with weekly demos so you always know where things stand.
Web apps
Customer-facing products and internal tools, built to be fast and easy to change.
- Next.js and React front ends
- Accessible, responsive UI
- Auth, dashboards and internal tools
At Visma: features for a payroll-critical app, and an incident status page used across the company.
APIs and integrations
Back ends that connect your systems: clean APIs, real-time features and third-party services.
- REST APIs in Node.js and .NET
- Real-time features with WebSockets
- Third-party and AI API integrations
Hangout runs on my Express API, with Socket.IO, Prisma and Cognito sign-in.
Cloud and reliability
Moving to the cloud, or already there and things keep breaking? I set up deployments, monitoring and automation so your app stays up.
- AWS setup and cloud migrations
- Docker and CI/CD pipelines
- Monitoring and task automation
AWS Certified Developer, currently leading a cloud migration at Visma.
02 / Selected work
Things I’ve built
From real-time video chat to an award-winning game jam entry. Each one links to a live version, a demo or the source code.
Game · 2024
Chrono Switch
A pixel art platformer where you shift time to reveal hidden paths. Award winner at GameDev.js Jam 2024, out of over 200 entries.
- JavaScript
- Phaser
View project
Web app · 2023
Prmpting Concept Art
Type a prompt and get concept art back, then refine any part of the image with a new prompt.
- Vue
- Axios
- Node.js
- AWS
- OpenAI API
View project
Web app · 2022
Game Shelf
Search for video games and browse them by developer or publisher, powered by the RAWG database.
- Vue
- Pinia
- Axios
- SASS
View project
Graffino · 2022
Weather App
Search any city for its current weather, a three-day outlook and an hourly forecast, with saved favourites.
- Vue
- Vuex
- Axios
- SASS
View project
Frontend Mentor challenge · 2022
Snap
A responsive landing page for a fictional remote-work start-up, expanded from a hero-only challenge.
- HTML
- CSS
View project
Course assignment · 2022
Omni Food
A responsive landing page for a fictional meal-delivery start-up.
- HTML
- CSS
View project
Windows app · 2023
Audio-video Processing
A desktop tool that applies effects like gamma correction to audio and video, including to a selected area of the frame.
- C#
- EmguCV
- NAudio
View project
Windows app · 2022
Paint Clone
A Paint-style drawing app in C#, with the classic tools plus a few of my own.
- C#
View project
03 / Experience
Four years on business-critical software
2024 — now
Software developer
Visma
Leading the migration of a payroll-critical application from one cloud provider to another, and building its user-facing features in React and Next.js. Day to day I also work with .NET 10, AWS, Docker and CI/CD pipelines.
2023 — 2024
System engineer
Visma
Kept critical business applications healthy across on-premise, AWS and Azure. Built a status page app that streamlines how the company’s incident managers create incidents, and Python scripts that save about two hours of manual work every week.
2022 — 2023
Technical trainee
Visma
Started in operations, monitoring business-critical applications around the clock, night shifts included.
2024 — now
Technical trainer
Swiss Webacademy
Teaching a full-stack course in Vue.js and Node.js to a small group, built around hands-on projects, with close feedback and support throughout.
2022
Front-end developer
Graffino
Built Weather App, the responsive weather web app in my projects, following industry best practices so it works well on any device and screen size.
- AWS Certified Developer – Associate
- Top of my class, BSc Computer Science
- Award winner, GameDev.js Jam 2024
04 / Skills
What I work with
Frontend
- React
- Next.js
- TypeScript
- JavaScript
- HTML and CSS
- Vue
Backend
- .NET 10 and C#
- Node.js and Express
- REST APIs
- Python
- PowerShell
Cloud and DevOps
- AWS
- Azure
- Docker
- CI/CD pipelines
- Linux
Everyday tools
- Terraform
- Vercel
- Figma
- Datadog
05 / Hobbies
When I’m not coding
Off the clock I still like building things, just with ink, plastic and pixels.
Drawing
Landscapes, urban sketches and portraits, on tablet, iPad or in ink
Pixel art and 3D
Sprites in Aseprite now and then, and models in Blender
Making games
Game jams, like the award-winning Chrono Switch
3D printing
FreeCAD fixes for drawers, my old Suzuki GS 500 and cats that switch off my PC
Home server
A Raspberry Pi under my desk, in a case and mounts I designed and printed
Running
5 to 10 km when I feel like it, 30 to 40 km a month
Have a project in mind?
Tell me what you’re building and where you’re stuck. I’ll reply with how I’d approach it.