C
Sasha Zezulinsky
Stockholm
Summary
Results-oriented Head of Engineering with over 16 years of experience in software development and team management.
Skilled in building and leading high-performing software development teams, driving innovation, and delivering impactful solutions.
Proven track record of scaling companies, conducting job interviews, organizing events, and providing consultancy services to a diverse range of clients, including big enterprises, gaming, media groups, automotive, logistics, blockchain startups and unicorns.
Proven expertise in leadership roles such as Head of Engineering, Lead Software Engineer, and Software Architect.
Proficient in a wide array of programming languages, tools, and technologies, with a strong focus on DevOps, SRE, and CI/CD pipelines. Adept at driving innovation, scaling teams, and delivering robust solutions in dynamic environments.
Overview
16
16
years of professional experience
4
4
Languages
Work History
Head of Engineering | Full-time
SwedQ AB
02.2017 - Current
- Provided strategic guidance and technical expertise to a diverse range of clients, including CoreCoin, Zilliqa, Infor, Scania, Spotify, Blocket, G-Loot, Embark Studios, and PostNord.
- Building and managing software development teams
- Scaled company from 2 to 30+ developers
- Ran 200+ job interviews
- Organized hackathons and events for developers, workshops for non-tech employees
Lead Developer | Contract
Embark Studios AB
08.2023 - 01.2024
- Created Unreal Engine Angelscript to C++ transpiler
Senior Software Developer | Contract
Zilliqa
01.2022 - 01.2023
- Worked on hardhat JavaScript test framework
- Reworked Zilliqa architecture: reduced number of pods, saved $40k-60k/monthly in costs
- Implemented EVM for Zilliqa: worked on RPC API and EVM blockchain explorer
- Worked on Zilliqa 2.0: investigated Rust ethereum clients, benchmark Tendermint.
Site Reliability Engineer | Contract
PostNord AB
08.2022 - 12.2022
- Worked on Grafana dashboard: added dashboard to alert when SSL certs expire
- Refactoring Java applications: send logs from all microservices to Grafana Cloud.
DevOps, Golang Developer | Contract
Blocket AB
01.2022 - 01.2022
- Created CLI tool and REST API service to automate deployment
- Created Github actions build, release and test pipelines.
Lead Development Engineer | Contract
CoreCoin
01.2019 - 01.2022
- Lead a team of 4 software developers
- Created new cryptocurrency based on Ethereum
- Replaced ecdsa secp256k1 with eddsa ed448 curve
- Replaced hashimoto with RandomY PoW algorithm, replaced Travis with Github actions
- Added payto protocol support to Chromium browser
- Worked on ethminer clone
- Worked on foundry clone
DevOps Engineer, Python Developer | Contract
Infor AB
05.2021 - 12.2021
- Created workflow to deploy ERP and CRM software on-premise and in-cloud
- Created pipeline to test ERP systems before a deploy
- Created scripts for Kuberneters backups
Software Architect | Contract
G-Loot Global Esports AB
12.2018 - 01.2021
- Created CI/CD pipelines for games plugins
- Worked on security threats modeling and product system architecture
- Resolved dependencies, added package management, defined release workflow and test automation
DevOps, C# .NET Unity3D Developer | Contract
Scania AB
01.2018 - 12.2018
- Created build and test automation pipelines for self-driven vehicles
- Implemented Unity plugin to simulate a sensor on the GPU
- Created Unity editor script to measure scripts compilation time.
Embedded Software Engineer | Contract
Spotify AB
02.2018 - 09.2018
- Created a new message logging system similar to syslog, added log severities, made sure to be able to trace and log every bug, which would give off a file name, function name, line number and event name
- The feature was covered with unit tests and helped to investigate blockers
C++ Software Engineer | Full-Time
Technology Nexus AB
01.2016 - 01.2017
- Created smart cards minidriver using Windows Crypto API Kit
- The Minidriver is loaded in 0 sessions and enables Windows smart card advanced features
- With the fundamentals of the architecture developed by Sasha which helped to attract big customers.
Software Architect | Full-Time
KnCMiner AB
01.2014 - 01.2016
- Created tools for a controller board to send mining tasks to a Bitcoin ASIC
- All the tools were written in C99 running on uClinux that was installed on FPGA with 32M of memory
- Created configuration service to push configuration changes to 200K+ devices
- It was written in Python, using bottle framework for providing REST API, mongoDB for storing configuration records, hosted on nginx web server
- Created blockchain experimental projects for top Scandinavian banks
- Helped to build 3 bitcoin mining data centres from scratch with 20 PH/s hashrate
- Worked on multisig 3-of-3 signatures to keep company crypto funds safe with keys stored on Trezor.
C++ Software Engineer | Full-Time
HP Software Inc
01.2014 - 07.2014
- Worked together with support L1 and L2: fixed 100+ P1 and P2 issues for HPM BPM product
Lead Software Engineer | Full-Time
Avid Software
01.2012 - 01.2013
- Lead a team of 4 engineers
- Conducted technical interviews, did tech mentoring
- Worked on client app file system drivers for Windows (OSR FSDK), Linux (fuse) and Mac
- Ran project to keep file system metadata in an SQLite on Debian
- Created C++ app to find corrupted data blocks on storage devices.
Software Developer | Full-Time
Edifecs Inc
01.2008 - 01.2012
- Designed software using UML class, sequence, state diagrams
- Implemented JavaScript to C++ translator
- Conducted C++ memory management research
- Created product API wrappers on Java, C# and JS.
Education
Master of Science - Computer Science
Sevastopol Technical State University
Sevastopol, Ukraine12.2010
Bachelor of Science - Computer Engineering and Networks
Sevastopol Technical State University
Sevastopol, Ukraine12.2009
Skills
- C/C
- Golang
- Python
- Rust
- Java
- JavaScript
- C# NET
- AWS
- GCP
- Grafana
- Prometheus
- Docker
- Kubernetes
- Terraform
- Helm
- CI/CD
- Jenkins
- Blockchain
- Bitcoin
- Ethereum
- Solidity
- MongoDB
- Postgres
- MySQL
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
swipe to browse
Work Preference
Work Type
Full TimeContract WorkWork Location
On-SiteRemoteHybridImportant To Me
Flexible work hoursWork from home optionSoftware
Python
Golang
Rust
Java
JavaScript
Blockchain
Solidity
Ethereum
Terraform
GCP
AWS
Docker
Interests
Thai boxing
Genealogy
Boats
Brazilian Jiu Jitsu
Timeline
Lead Developer | Contract
Embark Studios AB
08.2023 - 01.2024
Site Reliability Engineer | Contract
PostNord AB
08.2022 - 12.2022
Senior Software Developer | Contract
Zilliqa
01.2022 - 01.2023
DevOps, Golang Developer | Contract
Blocket AB
01.2022 - 01.2022
DevOps Engineer, Python Developer | Contract
Infor AB
05.2021 - 12.2021
Lead Development Engineer | Contract
CoreCoin
01.2019 - 01.2022
Software Architect | Contract
G-Loot Global Esports AB
12.2018 - 01.2021
Embedded Software Engineer | Contract
Spotify AB
02.2018 - 09.2018
DevOps, C# .NET Unity3D Developer | Contract
Scania AB
01.2018 - 12.2018
Head of Engineering | Full-time
SwedQ AB
02.2017 - Current
C++ Software Engineer | Full-Time
Technology Nexus AB
01.2016 - 01.2017
Software Architect | Full-Time
KnCMiner AB
01.2014 - 01.2016
C++ Software Engineer | Full-Time
HP Software Inc
01.2014 - 07.2014
Lead Software Engineer | Full-Time
Avid Software
01.2012 - 01.2013
Software Developer | Full-Time
Edifecs Inc
01.2008 - 01.2012
Master of Science - Computer Science
Sevastopol Technical State University
Bachelor of Science - Computer Engineering and Networks
Sevastopol Technical State University
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