
Viktor Mateleshka
Verified Expert in Engineering
Software Developer
London, United Kingdom
Toptal member since December 26, 2019
Viktor is an expert in setting up and leading engineering teams. He consistently follows the data-driven approach in development, management, and business areas. With over a decade of experience, he has a profound knowledge of various solutions and always works with cutting-edge technologies. Viktor is the right person to accelerate your business.
Portfolio
Experience
- C# - 11 years
- Management - 5 years
- Leadership - 5 years
- CTO - 4 years
- .NET Core - 4 years
- Architecture - 4 years
- Docker - 3 years
- Kubernetes - 3 years
Availability
Preferred Environment
Docker, Kubernetes, ASP.NET, Azure
The most amazing...
...project I've finished was shifting the release process from weekly to on-demand by implementing pure CD in a $100+ million company with over 500 engineers.
Work Experience
Fractional CTO
Projection Genie Inc.
- Collaborated with the company owners to establish a streamlined approach for transforming their ideas into a tangible product. Assisted in defining the MVP and creating a rollout strategy to achieve the quickest feedback loop from customers.
- Directed the development of a financial app that employs complex mathematical operations to forecast the financial outcomes of startups and existing businesses based on multiple factors.
- Designed and implemented engineering processes in the company.
Director of Engineering
Givelify LLC
- Led distributed infrastructure teams with over 50 engineers in total. Increased engineering throughput by over 500%.
- Oversaw the development of the CI/CD process that resulted in an established microservices infrastructure with pure continuous deployment.
- Played a crucial role in transforming the company's engineering, resulting in significant business growth.
- Designed a high-load architecture that helps the business process over 100 million transactions annually and more than $1 billion in volume.
Senior CTO
Timescale Inc.
- Worked closely with the company owners to define a lean way of pivoting their ideas into a real product. Helped them to define the MVP and a rollout plan to get the shortest possible feedback loop from customers.
- Performed an audit across the company codebase, provided suggestions about future project establishment, and defined a roadmap to support the company's scale.
- Designed and implemented engineering processes in the company.
Chief Technology Officer
Kabru
- Set up the engineering team from scratch successfully.
- Designed and implemented engineering processes in the company.
- Delivered web and mobile platforms using the latest industry technologies.
- Helped the business to hit more than €10 million in monthly transaction volume.
Software Engineering Manager
JustAnswer
- Led distributed infrastructure teams of 20+ engineers. The main goal was to develop a CI/CD process to shift from weekly releases to releases on demand.
- Managed and mentored eight direct reports, helping them to grow their skills and expertise.
- Played a crucial role in the company’s software engineering structure by actively improving engineering throughput metrics.
- Participated in the company’s quarterly and yearly OKRs and goals definition.
- Collaborated in the company’s quarterly and yearly planning.
- Organized and led internal company conferences and training.
- Established performance-oriented company culture by introducing engineering throughput metrics tracking.
Lead Software Engineer
Coro Global
- Contributed to a high-load fintech application using the ASP.NET technology stack.
- Managed the development team and worked on the global system architecture.
- Migrated the whole platform to the newest .NET 5 technology.
Lead Software Engineer
JustAnswer
- Led two distributed business initiative teams of 20+ engineers in total.
- Managed and mentored eight direct reports. Helped them to grow their skills and expertise.
- Led quarterly engineering OKR groups to achieve engineering-related goals with 10-20 people.
- Organized and led internal company conferences and training.
- Developed, from scratch, continuous delivery processes for several production applications.
- Solved dozens of architectural software development challenges.
Co-founder | Chief Technology Officer
ParsecLabs
- Founded, managed, and successfully scaled the blockchain company.
- Helped the company to grow from 3 to 20 people in two years.
- Utilized cutting-edge technologies to fulfill the business needs of clients.
Senior Software Engineer
Thinkmobiles
- Contributed to the development of an eCommerce platform using an ASP.NET technology stack.
- Built an end-to-end CI/CD pipeline for a global eCommerce platform.
- Designed and developed automated testing tools and infrastructure.
- Mentored new software engineers in the company and helped them grow their knowledge base.
Software Engineer
S.I.N.S.
- Built an eCommerce platform using ASP.NET technology stack.
- Developed CI/CD scripts and pipelines using Jenkins.
- Designed and developed an API testing framework to simplify platform releases.
Software Engineer
Freelance
- Built numerous applications using ASP.NET technology in the eCommerce and banking sphere.
- Contributed to the development of automated testing infrastructure following the testing pyramid principles.
- Wrote test documentation which was reviewed by customers.
Experience
Chief Technology Officer
Co-founder | Chief Technology Officer
Software Engineering Manager (JustAnswer)
Education
Master's Degree in Project Management
CEVRO Institut - Prague, Czech Republic
Master's Degree in Information Technologies
Uzhhorod National University - Uzhhorod, Ukraine
Certifications
Certified Continuous Delivery Guru
CDM
Situational Leadership Associate
situational
Certified Scrum Master Training
UASM
Skills
Libraries/APIs
Visual Studio SDK, React, REST APIs, Twilio API, Entity Framework, Node.js, Vue
Tools
Git, Visual Studio, Jira, Jenkins, RabbitMQ, GitHub, GitLab CI/CD, NGINX, TeamCity, VMware, AWS CLI
Languages
C#, SQL, C#.NET, HTML, PHP, Groovy, Batch, JavaScript, CSS, Python, TypeScript, Swift, Solidity
Frameworks
.NET, .NET Core, NUnit, ASP.NET, Laravel, Next.js, Windows PowerShell, Tailwind CSS, Express.js, .NET 5, Flutter, React Native
Paradigms
Automated Testing, Agile, Scrum, Management, Object-oriented Programming (OOP), Web Architecture, Azure DevOps, Microservices, Microservices Architecture, B2C, Mobile Development, Agile Project Management, Kanban, Test Automation
Platforms
Azure, Twilio, WordPress, iOS, Amazon Web Services (AWS), Kubernetes, Docker, Visual Studio Code (VS Code), Linux
Storage
SQL Server 2016, Azure Active Directory, Google Cloud, Redis, MySQL, NoSQL, PostgreSQL, MongoDB
Industry Expertise
Cybersecurity, Project Management, Accounting
Other
Documentation, Leadership, Architecture, SOLID Principles, CI/CD Pipelines, CTO, Software Architecture, Full-stack, Fintech, APIs, Cloud Architecture, Back-end, Technical Leadership, IT Project Management, Cloudflare, IIS, API Integration, Product Strategy, Technical Consulting, Product Management, Team Leadership, Artificial Intelligence (AI), Full-stack Development, Machine Learning, Back-end Development, Cloud Infrastructure, PDF, Security, Startups, Mobile Apps, User Experience (UX), User Interface (UI), Development, Technical Architecture, Code Review, Software Design, Advisory, Coaching, Scalability, Process Development, Fractional CTO, Integration, Software Development, Business to Business (B2B), Web Development, Front-end Development, Generative Pre-trained Transformers (GPT), MERN Stack, Mobile App Development, PCI Compliance, PCI, PCI DSS, Natural Language Processing (NLP), Social Media Apps, eCommerce, Intuit QuickBooks, Statistics, Finance
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