Alexandr Kobrin
Verified Expert in Engineering
JavaScript Developer
Sydney, New South Wales, Australia
Toptal member since October 12, 2022
Alexandr is an experienced software engineer with a solid understanding of the best development practices. He can quickly investigate, evaluate, and adjust to new challenging contexts to lead a multicultural team toward effective and mutually beneficial solutions. In his over seven years of experience, he was a part of three successful companies leading the entire web development lifecycle on more than ten projects, ensuring high quality and fulfilling business and market needs.
Portfolio
Experience
- JavaScript - 8 years
- Full-stack - 8 years
- Git - 5 years
- React - 5 years
- Node.js - 4 years
- Docker - 3 years
- SQL - 3 years
- TypeScript - 3 years
Preferred Environment
MacOS, Visual Studio Code (VS Code), Slack, JavaScript, TypeScript, Node.js, React, Redux, Full-stack, Git
The most amazing...
...thing I've developed is an advertisement platform for interactive applications for screens used in public areas.
Work Experience
Senior Front-end Developer, SRE
Canva
- Led the rewrite of the service health app within Canva's Observability Hub, used by thousands of engineers daily, migrating its query architecture onto the Grafana Scenes framework.
- Operated Canva's Kubernetes GitOps infrastructure - shipped blue-green Grafana deployments to eliminate deploy-time disruption, resolved a production ingress incident, and migrated CI to signed Buildkite pipelines.
- Built the Sequence Viewer and lesson-assignment flow for Canva for Education's Lessons product, letting teachers assign lessons to students, groups, or brands with progress tracking and completion flows.
Menthor
GetMenthor
- Created a learning roadmap for people from other areas to land their first job in IT.
- Helped juniors and trainees boost their careers by reviewing their weak spots in the technical area.
- Prepared mentees for upcoming technical interviews.
Full-stack Developer | Team Lead | Tech Lead
DashBouquet Development
- Designed and implemented a pipeline to collect and visualize a million records per day.
- Optimized and reduced device network traffic by 30-100 times through data aggregation and compression.
- Trained a neural network to perform highly accurate real-time age and gender estimation (98.5% for gender and 61% for age).
- Innovated a math-based people-tracking algorithm for computer vision data, which allowed tracking of up to six persons in a frame without losing performance.
- Created over 30 small and medium applications for interactive screens, with three complicated dashboards using React.
- Developed three applications with 3D environments and physics using Three.js and WebGL.
- Implemented a pipeline to generate custom Linux distribution kits with automatic installation, which saved about 30 minutes per set up.
- Overhauled and reconfigured a production application's obsolete legacy source code, resulting in a two times faster deployment pipeline and increased development speed by an order of magnitude.
- Spearheaded teams of 2-8 engineers with a combined project management role on three projects.
- Interviewed over 50 candidates for engineering positions in the company, guided newcomers through the onboarding process, and prepared the first assignments.
Full-stack Developer
Paprikash Studio
- Performed hundreds of adjustments and feature implementations with varying complexity for over 20 eCommerce projects.
- Produced more than ten interactive, responsive, and SEO-friendly landing pages.
- Designed and coded an application for management in production that helped save 1-2 hours a day for storekeepers.
- Developed the front end of the web service for searching and buying tickets for buses, trains, and planes.
Storekeeper
PromAgroPack-2007
- Created internal web-based software for production process automation that seamlessly communicates with five different departments.
- Created and maintained data structure for cardboard-manufacturing goods tracking.
- Developed an excel-table for managing and keeping track of workwear clothes.
Experience
Interactive Advertisement Platform
Zero-trust Network Dashboard
Business Processes Visualizations Dashboard
https://datricks.com/It is fully customizable, with multiple dynamic components that are different for each client, with many interactive charts and complex tables.
Education
Undergraduate Coursework in Civil Engineering
Brest State Technical University - Brest, Belarus
Certifications
Data Science
Yandex
Machine Learning, Data Science and Deep Learning with Python
Udemy
MERN Stack Front To Back: Full Stack React, Redux & Node.js
Udemy
Skills
Libraries/APIs
React, REST APIs, Node.js, OpenCV, TensorFlow, Keras, OpenAPI, D3.js, Stripe, MobX
Tools
Slack, Git, Jira, Kibana, Graphviz, Logstash, Grafana
Languages
JavaScript, CSS, HTML, HTML5, TypeScript, SQL, PHP, Python, Go
Frameworks
Redux, Cypress, Material UI, Jest, Next.js, Electron
Platforms
MacOS, Visual Studio Code (VS Code), Docker, Firebase, Amazon Web Services (AWS), Vercel
Storage
Elasticsearch, NoSQL, MongoDB, Redis
Paradigms
Continuous Integration (CI), Continuous Delivery (CD)
Other
Front-end, Full-stack, APIs, Web Development, ECharts, AI Agents, Prototyping, Artificial Intelligence (AI), Large Language Models (LLMs), Full-stack Development, GitHub Actions, OpenID Connect (OIDC), Data Science, Data Analysis, CI/CD Pipelines, WebAssembly (Wasm), Observability, Prometheus
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