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Konstantinos Paparas

Software Engineer · Berlin, Germany

I'm a software engineer specializing in open-source development with a strong focus on privacy-preserving applications. My expertise spans front-end development with Vue.js and TypeScript, Android development with Kotlin, and full-stack solutions. Currently leading frontend development at Rotki, building tools that empower users to maintain financial privacy while managing their portfolios.

View My Work → My Journey →

Experience

My professional journey and experience

Rotki Solutions GmbH

2021 - Now

Frontend Lead/Infrastructure

Working with Vue.js/Typescript, Ansible & Docker Swarm.

rotki

2018 - 2021

Open-source Contributor

Working with Vue.js/Typescript on the frontend.

brainbot technologies AG

2018 - 2020

Software Engineer

Raiden Network WebUI and part of the Raiden Light Client/Dapp team.

arx.net S.A.

2015 - 2018

Senior Android Developer

Lead of the Android client of White Mobile Cloud.

arx.net S.A.

2013 - 2014

Frontend Developer

Web development with Apache::ASP, Perl, and JQuery.

arx.net S.A.

2012 - 2013

Intern

Web development with Apache::ASP, Perl, and JQuery.

Perfect Edge Ltd

2011 - 2013

Software developer/Infrastructure

Part of a small team working with Adobe Flex/ActionScript 3/PHP/MySQL.

IT department, ATEI Thessalonikis

2004 - 2014

Bachelor's Degree

Studies

Selected Work

A curated list of projects I've been involved with
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    rotki

    open source portfolio tracker, accounting and analytics tool that protects your privacy

    Vue.jsTypeScriptPythonOpen SourcePortfolio
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    MusicBee Remote

    Android application and Plugin that allows controlling MusicBee remotely.

    AndroidKotlinC#
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    Sikorka (Android App)

    Application that used light client to interact with smart-contracts. Part of a proof of location project.

    AndroidJavaEthereumWeb3
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    Raiden Light Client

    JavaScript SDK, CLI and dApp to carry out fast, cheap, scalable off-chain token transfers.

    TypeScriptVue.jsEthereumOpen Source
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    Raiden WebUI

    The frontend for the original Raiden Python Implementation

    AngularTypeScriptEthereumOpen Source
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    White Mobile Cloud (Android App)

    White Label Cloud Backup/Restore Android application part of the White Mobile Cloud Platform

    AndroidKotlin

For more projects and contributions, visit my GitHub profile

Expertise

Technologies and tools I've worked with throughout my career

Languages

TypeScript, Python, Kotlin, Go, C#, JavaScript, Lua, Rust

Frontend

Vue.js 3, Nuxt.js, Angular, Tailwind CSS, PostCSS, Storybook, Vue I18n, Vite, Vitest

Backend/Systems

Python CLI, Go CLI, .NET Framework, REST APIs

Mobile

Android, Kotlin, Architecture Components, Koin DI, Material Design

Tools & DevOps

Docker, Ansible, Git, pytest, Vitest, Robolectric, MockK, npm, pnpm, uv, Gradle, ESLint

Specialized

CLI Development, Cross-platform Apps, Open Source, UI/UX Design Systems, Privacy-focused Apps, Developer Tooling