Eniz Vukovic, Developer in Gradačac, Bosnia and Herzegovina
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Eniz Vukovic

Verified Expert  in Engineering

Software Developer

Location
Gradačac, Bosnia and Herzegovina
Toptal Member Since
December 14, 2019

Eniz is a self-taught programmer and entrepreneur, always ready to take on challenges and deliver the best, whether it's about maintaining a zero-downtime system at Viber or creating a social network used by thousands of people all over Europe. Eniz enjoys contributing to and discussing open source projects and is willing to discover and embrace new challenging projects.

LinuxRedisSQLPostgreSQLExpress.jsNode.jsReactGraphQLHerokuKoaAmazon Web Services (AWS)CC++FirebaseGoogle Cloud

Portfolio

Jumpcut
Google Cloud, Redux Thunk, CircleCI, React Apollo, Redux-Saga, Apollo Server...
Closenger
Google Cloud, JSON Web Tokens (JWT), Go, OAuth 2, Front-end Development, Redux...
Viber
Linux, Boost, RTP, SIP, C++

Experience

PostgreSQL - 5 yearsReact - 4 yearsNode.js - 4 yearsExpress.js - 4 yearsJavaScript - 4 yearsGraphQL - 3 yearsNext.js - 2 years

Availability

Part-time

Preferred Environment

Git, Visual Studio Code (VS Code), Windows

The most amazing...

...project I've developed is a demo service that deployed and served different project versions in a sandbox for project managers and testers to evaluate.

Work Experience

Senior Full-stack Engineer, Engineering Manager

2018 - 2019
Jumpcut
  • Created a sandbox system to demo various work in progress to project managers and testers using Node.js and LXD.
  • Created a marketing tool with React, Apollo GraphQL, and Express.js, which replaced a legacy system.
  • Migrated legacy landing pages from PHP to Next.js and React.
  • Migrated infrastructure from AWS to GCP without downtime.
  • Led the migration from a monolith RESTful API to a federated GraphQL API.
  • Led a team of developers that built complex landing pages using React and Next.js.
Technologies: Google Cloud, Redux Thunk, CircleCI, React Apollo, Redux-Saga, Apollo Server, Koa, JSON Web Tokens (JWT), Kubernetes, MongoDB, Docker, OAuth 2, Front-end Development, Redux, Express.js, SQL, Linux, Next.js, GraphQL, Amazon DynamoDB, Redis, PostgreSQL, PHP, React, Node.js

Co-founder, Full-stack Engineer, CTO

2014 - 2018
Closenger
  • Wrote a high-speed media and chat server for real-time communication.
  • Created an app from scratch, first using Qt and QML, then rewrote it in React Native.
  • Developed the web equivalent of the said app using React.
  • Created a video editor for the app using the FFmpeg library.
  • Designed an SEO tool for pre-rendering React apps.
  • Contributed to bug fixes and improvements to core React Native code base.
Technologies: Google Cloud, JSON Web Tokens (JWT), Go, OAuth 2, Front-end Development, Redux, Google Cloud Platform (GCP), Express.js, SQL, Linux, Redis, PostgreSQL, React, React Native, Node.js, C

Back-end Engineer

2013 - 2014
Viber
  • Maintained a SIP signaling gateway server.
  • Created a testing suite for the SIP gateway server.
  • Streamlined fixes and changes to the RTP server that involved communication with a SIP gateway.
Technologies: Linux, Boost, RTP, SIP, C++

Languages

GraphQL, JavaScript, SQL, C, C++, PHP, Go

Frameworks

Express.js, Koa, React Native, JSON Web Tokens (JWT), Next.js, Redux, Boost, OAuth 2

Libraries/APIs

Node.js, React, Redux-Saga

Platforms

Linux, Heroku, Amazon Web Services (AWS), Firebase, Google Cloud Platform (GCP), Windows, Kubernetes, Docker, Visual Studio Code (VS Code)

Storage

Redis, PostgreSQL, Google Cloud, Amazon DynamoDB, MongoDB

Other

Front-end Development, Apollo Server, SIP, RTP

Tools

React Apollo, CircleCI, GitLab CI/CD, Redux Thunk, Git, Travis CI

Paradigms

Functional Programming