Stefan Kupresak

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ABOUT ME

CTO-level engineer (previously worked at RecordedFuture)

Jack-of-all trades programmer who has experience in several technologies. Currently, I'm most experienced Phoenix, an Elixir OTP framework but can fit in any modern MVC framework. I'm also specialized for front end frameworks like VueJS, Angular JS and I'm very enthusiastic about the JavaScript world and I'm all about checking out new rising technologies like Svelte.
Eager to learn new technologies and mostly interested in Web software development, especially building high quality backend systems with lots of traffic and making sure everything is optimised and secure for the end users.

English

Belgrade (+01:00)

Joined April 2024

EXPERTISE

8 years experience

8 years experience

5 years experience

5 years experience

7 years experience

8 years experience

6 years experience

REVIEWS FROM CLIENTS

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SOCIAL PRESENCE

GitHub

minecraft-open-admin

My open source project for administrating your personal minecraft server on a VPS

JavaScript

my-react-forms

Created with CodeSandbox

JavaScript

Stack Overflow

758 Reputation

EMPLOYMENTS

Senior Innovation Software Engineer

SecurityTrails, a Recorded Future Company

2022-02-01-Present

Senior Innovation Software Engineer
February 2022 - Present (2 years 3 months)
United States (remote)

SQL

Node.js

Elixir

SQL

Node.js

Elixir

Rust

Apache Kafka

Kubernetes

ClickHouse

AWS

Senior Software Engineer

CrewFire

2021-05-01-2022-02-01

Senior Software Engineer
May 2021 - February 2022 (10 months)
United States
Working on main company product with various t...

Senior Software Engineer
May 2021 - February 2022 (10 months)
United States
Working on main company product with various technology stacks, including
React, Graphql; working on additional internal tools. Implementing software
architecture solutions; Developing micro-services on the GraphQl Node.JS API
with async backend jobs.

Node.js

Full Stack

React

Node.js

Full Stack

React

Senior Team Lead

42coders

2020-12-01-2021-05-01

Senior Team Lead
December 2020 - May 2021 (6 months)
Belgrade, Serbia
Working on various internal CMS projects and managin...

Senior Team Lead
December 2020 - May 2021 (6 months)
Belgrade, Serbia
Working on various internal CMS projects and managing a team of developers
for developing various applications built with Laravel, Vue.JS and jQuery

Laravel

Vue.js

Laravel

Vue.js

PROJECTS

Government traffic site redesign View Project

2021

The original government site was outdated in both design and technical structure, so I rebuilt it from the ground up. I redesigned the en...

The original government site was outdated in both design and technical structure, so I rebuilt it from the ground up. I redesigned the entire UX/UI, implemented a modern architecture using React and Laravel, and introduced clean code organization with proper version control. I also set up automated deployments, improved developer workflows, and built a scalable CMS experience for staff alongside a streamlined interface for end users. This project was essentially a full redesign and re-engineering effort driven end-to-end.

Git

PostgreSQL

Laravel

Git

PostgreSQL

Laravel

React

Deployment automation

DevOps

WHOIS and DNS security platform with powerful API View Project

2019

SecurityTrails is a cybersecurity intelligence platform that aggregates global DNS, IP, and domain data into a unified search and API ser...

SecurityTrails is a cybersecurity intelligence platform that aggregates global DNS, IP, and domain data into a unified search and API service, used by enterprises for threat intelligence, asset discovery, and attack surface monitoring.

Python

Elasticsearch

Jira

Python

Elasticsearch

Jira

Management

Elixir

Rust

Phoenix

Golang

ClickHouse