Experience

Full Stack Web3 Dev | IDriss (part time)

2022-06 ⇒ actually

Writing new smart contracts & developing existing ones
Developing SDK for other developers to use
Developing internal & public full stack codebases

Full Stack Integration Engineer | contractor for Allegro

2020-01 ⇒ actually

Full stack (Java + React/Angular) development
Designing whole system architecture for new integration stack
Designing & development of integration data pipelines
On-call Linux admin support for integration platform
Building inhouse developer tools (cron event scheduler, utility dashboard, graphical code generation tool)

Integration Engineer | contractor for Bunge

2018-07 ⇒ 2019-12

Development and maintenance of interfaces based on TIBCO BusinessWorks, Web Services, Active Database (ADB) and SAP Adapters; integrating ERP and CRM systems
Cooperation with business users and providing L3 support
Implementation and maintenance of CI / CD pipeline
Working in an international environment, realizing projects with teams from Asia, Europe and America
Building inhouse developer tools (e.g. event scheduler, log processor)

Android app developer (part time)

2017-02 ⇒ 2018-02

Implementing mobile coaching app for Android platform in Java

Integration Engineer | contractor for Roche

2015-02 ⇒ 2018-07

Development and maintenance of interfaces based on TIBCO BusinessWorks, BusinessConnect, Web Services, Active Database (ADB) and SAP Adapters; integrating ERP and CRM systems based on specification
Preparation of technical documentation
Development of internal tools written in Scala
Cooperation with business users and providing L3 support
Implementation and maintenance of utilities for Tibco BW and EAI platform in Java and Scala
Working in an international environment, realizing projects with teams from Asia, Europe and America

Master of Ceremonies | JokeR

2009-06 ⇒ 2018-09

leading wedding receptions and playing guitar

Education

Software Engineering

2014 ⇒ 2019

Warsaw School of Information Technology

English philology

2011 ⇒ 2014

English Teaching College in Ostrołęka

Abilities

Languages

🇵🇱 Polish native

🇺🇸 English business fluency

🇪🇸 Spanish intermediate

🇷🇺 Russian beginner

Interests

🐧 Linux

🥁 Playing musical instruments

Language learning

Web3 technologies

Economics

Key achievements

🏅 🏆🏆🏆 2022 ETHOnline global hackaton finalist (14 finalists out of 360 participating teams): Turbo-DIPaaS project

🏅 Speeding up business critical data processing pipeline ~1500x (from 2 hours to 5 seconds)

🏅 Creating many tools used internally by teams (CI/CD pipelines, logs and management utilities, event schedulers, automation tools, etc.)

🏅 Development of high-volume clinical data transfer solution

🏅 Development of Data Sourcing solution with MongoDB clusters harmonizing millions of requests daily

Skills

⚡ EAI Technologies: Tibco BW Suite, EMS, BusinessConnect, Sterling B2B Integrator

⚡ Languages (from best to worst fluency): Java, TypeScript, Solidity, Kotlin, SQL, Go, C++, Bash, Haskell, Scala

⚡ Frameworks: React, Angular, SolidJS, ChakraUI, SemanticUI, Bootstrap, Spring, NodeJS, GraphQL

⚡ Tools: Kubernetes, Docker, Bamboo, GitHub Actions, Hardhat

⚡ Distributed Systems communication protocols: Kafka, Hermes, RabbitMQ, ElasticSearch, Apache Pulsar, JMS

Side projects

Turbo-DIPaaS - 🏆 winning project for ETHOnline 2022. No code Web3 integration project. TypeScript, NodeJS, React

IDriss - contributing to IDriss - Web3 swiss-knife for non crypto-native people. TypeScript, Solidity, Hardhat

Live EVM Debugger - tool allowing for debugging, tracing and simulating on-chain transactions (work in progress). TypeScript, SolidJS, GraphQL, Hardhat

SupplyChain - simple online shop and blockchain based supply chain (work in progress). Solidity, Go, TypeScript, React, Hardhat

Rafał Kalinowski