Hire Top Freelance
Back-End Developers
in Bucharest

Since 2011, I've worked as a freelancer, by myself - on my own projects, on remote teams, but also with big companies such as DeinDeal, part of Ringier. I've had the chance to be the one taking decisions, but also to help shape others' decisions for the better. I'm always on the lookout to improve the user's experience, both visually, and from a technical perspective; my ultimate goal is to know the user is happy and has a great experience while using the apps I work on. I'm always trying to improve and keep up with new technologies, I'm putting the effort in helping/teaching others, and I usually like to understand how and why things work. The latter also includes decisions, and it's a reason why I like being involved, because I can have a better picture of the project I'm working on, and its direction. My main expertise is iOS development, but I've also been involved in Frontend and Backend development, both on personal projects, and at work. I've worked with Obj-C, Swift, SwiftUI, Vapor (Server Side Swift), Node.js, Express.js, JS, Ruby, Sinatra, HTML, (S)CSS and React. I've used OOP, P(rotocol)OP, Multithreading. I constantly work with and sometimes design RESTful API's. I created multiple backends and the frontend part for some of them. I've implemented Push notifications both on the device and server. I've worked with In-App purchases and Payment SDKs. I always work with Auto-Layout on iOS and implement Responsive Design for the web. I've set up several Continuous Integration & Deployment pipelines. I always use git, especially in teams. I've implemented Google Analytics and GTM on iOS. I've worked with AWS S3 & Digital Ocean on the server side. I've worked with Core Data and also implemented sync.

Back-EndSwiftuiiOSReactNode.jsTypeScriptObjective-CReact NativeJavaScriptFirebaseHTML/CSSResponsive DesignAmazon S3Swift

Andrei is a senior software developer and ex-Microsoft engineer with 10+ years of experience developing web, desktop, mobile, and blockchain apps using Ruby, C#, and Javascript. His products brought $100M+ in total revenue and are used by dozens of millions of users to this day. Being a startup founder himself, Andrei knows exactly what brands need to succeed and how to bridge the gap between business and technology. He is here to help companies grow using the right software and tools.

Back-EndManagementLeadershipAWS (Amazon Web Services)Ruby on RailsReactNode.jsPythonC#JavaJavaScript

Hello fellow mentors and mentees! During my career so far I helped design, built and maintain two products, development tools and CI/CD pipelines. **The tools that I used are Python, Django, Go, Kubernetes, gRPC, HTTP, Kafka, MySQL, MongoDB, Elasticsearch and Redis.** To give you a sense o scale, the last system that I worked on was an evolving one built from 150+ microservices all following the deployment, security and observability standards required from a production system. My experience with mentoring started early in my student life where I worked with students as a teaching assistant and teaching programming to children as part of an NGO. I improved on the mentoring skills while helping my peers get familiar with the systems we built, help them be productive and grow through code reviews, feedback, reading recommendations and pair programming. Looking forward to working with you!

Back-EndGo (Golang)MicroservicesDockerTest driven developmentContinuous IntegrationMongoDBKubernetesDjangoPython