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Nikolai Petukhov

PROFILE

Nikolai Petukhov

Over 16 months, contributed to the supervisely/supervisely repository by building and refining core features for model deployment, inference, and video annotation workflows. Leveraged Python, FastAPI, and Vue.js to deliver robust backend APIs, interactive frontend widgets, and resilient caching mechanisms. Enhanced model loading, tracking, and training pipelines with asynchronous programming, improved error handling, and detailed logging. Addressed data integrity and performance through targeted bug fixes, geometry processing, and file management improvements. Focused on automation, observability, and developer experience, the work enabled scalable machine learning operations, streamlined release processes, and more reliable analytics, supporting both end-user productivity and platform maintainability.

Overall Statistics

Feature vs Bugs

73%Features

Repository Contributions

55Total
Bugs
12
Commits
55
Features
33
Lines of code
22,728
Activity Months16

Work History

February 2026

3 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary for supervisely/supervisely. Focused on expanding ML training tooling and reliability. Key features delivered include a TrainApi for neural network training, enhanced video figure validation for oriented bounding boxes, and a console progress bar experience via tqdm enabled by default. These changes streamline model training workflows, improve validation accuracy, and enhance developer and user visibility into long-running tasks. Overall impact: increased automation, reduced manual steps, and improved product quality.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for supervisely/supervisely focusing on feature delivery and bug fixes in the Heatmap widget. Key enhancements include Heatmap Zoom and Blur configurations, performance and reliability improvements, and updated widget script. Delivered through a single commit f5c91f774dcbd0c14ba1287a605d613223574d08 with a descriptive message about added zoom, blur configurations, and bug fixes.

December 2025

4 Commits • 3 Features

Dec 1, 2025

December 2025 monthly summary for supervisely/supervisely: Key features delivered include oriented bounding boxes tracking, flexible model benchmark data output, and heatmap widget enhancements. Major bugs fixed include a reliability fix in model loading. These efforts improve model selection reliability, benchmarking fidelity, and visualization across formats, enabling broader use cases and faster decision-making. Technologies demonstrated include Python-based tracking and geometry improvements, data serialization formats (JSON, .npy, CSV), and CSS-driven UI styling. Business value: more reliable model loading, richer benchmarking data, and a more usable UI, accelerating model deployment and evaluation cycles.

November 2025

5 Commits • 2 Features

Nov 1, 2025

November 2025 performance highlights: Delivered a new Interactive Heatmap Widget, advanced Predict App and Inference capabilities, and stabilized core tracking workflows. Focused on business value through faster insights, more reliable analytics pipelines, and maintainable code improvements.

October 2025

3 Commits • 1 Features

Oct 1, 2025

October 2025 focused on stabilizing the inference pipeline and expanding data input capabilities. Delivered robust fixes for InferenceImageCache to prevent crashes, added automatic retrieval of missing frames/images during cache misses, and corrected batch position handling. Introduced comprehensive Video Data Support and UI/UX enhancements for the Prediction App, improving video input workflows, project/experiment management, and settings/output configuration. These changes reduce downtime, broaden data support, and improve end-to-end model inference efficiency.

September 2025

3 Commits • 1 Features

Sep 1, 2025

September 2025 performance summary for supervisely/supervisely: Delivered API-enabled PredictApp predictions with flexible input options and per-image targeting, plus robust progress reporting and error handling. Also stabilized task state handling by fixing restoration and namespace logic for large environment variables, including underscores and case variations. These changes enhance automation, reliability, and developer experience with large-scale environments.

August 2025

2 Commits • 1 Features

Aug 1, 2025

Aug 2025 monthly summary for Supervisely development: Delivered a major enhancement to the model loading and inference flow for supervisely/supervisely, focusing on efficiency, correctness, and extensibility. Key features include pretrained model checkpoint support and a new model source, plus a loading optimization that only loads custom models when a task_id is present. The work improves startup time, reduces runtime errors, and simplifies integration of new models. This was achieved through code refactors of the inference module and updated loading logic, as reflected in commits c5b92e9ea457c8b9423f23c7bbebaca3a6f68a8a and 8ae855d3378afa3f1219284fd4f02731b3bca6e3 (PRs #1433, #1435).

July 2025

2 Commits • 1 Features

Jul 1, 2025

July 2025 monthly summary for supervisely/supervisely focusing on feature delivery and bug remediation with concrete business value. Delivered two critical improvements in image/cache management and enhanced observability across the caching layer to support stable, scalable pipelines.

June 2025

2 Commits • 2 Features

Jun 1, 2025

June 2025: Delivered two high-value features that enhance data processing and release packaging, contributing to improved workflow efficiency, reproducibility, and packaging flexibility. No major bugs were reported this month. Refactoring and progress-tracking improvements also supported maintainability and transparency for ongoing work.

May 2025

6 Commits • 2 Features

May 1, 2025

Summary for May 2025: Delivered significant API and media handling enhancements in supervisely/supervisely repo, focused on enabling reliable model deployment/inference workflows, robust video project processing, and more robust prediction file handling. These efforts improved deployment speed, data retrieval granularity, resilience of video data pipelines, and prediction workflow robustness, driving faster time-to-value for ML teams and reducing operational risk.

April 2025

1 Commits

Apr 1, 2025

Concise monthly summary for 2025-04 focusing on key accomplishments, features delivered, major bugs fixed, impact, and technologies demonstrated.

March 2025

2 Commits • 1 Features

Mar 1, 2025

March 2025 summary for supervisely/supervisely: Delivered data integrity and caching robustness improvements for video annotations. Implemented track_id in VideoFigure JSON serialization to preserve track information during export, and fixed caching for extensionless video files by preserving the original extension in file paths. These changes enhance downstream data processing accuracy, export reliability, and caching behavior across diverse file types.

February 2025

8 Commits • 7 Features

Feb 1, 2025

February 2025 monthly summary for supervisely/supervisely focusing on security, deployment, observability, and developer tooling. Delivered features enhancing release security, deployment robustness, and local inference capabilities; reduced log noise for health checks; added remote debugging; and standardized routing/logging. Fixed a critical cache resilience bug and improved experiment outputs.

January 2025

5 Commits • 3 Features

Jan 1, 2025

January 2025 performance summary: Delivered key business-focused and technical improvements across Supervisely and Developer Portal. Implemented Pyodide-based Python web app support in the Supervisely frontend, added asynchronous tracking APIs with revamped interfaces for faster, more reliable tracking, and enforced production stability through hot-reload safeguards and SDK version updates. Also produced comprehensive in-browser labeling tool documentation to accelerate developer adoption and release readiness. These efforts collectively enhanced developer productivity, system stability, and end-user capabilities.

December 2024

5 Commits • 4 Features

Dec 1, 2024

2024-12 monthly summary for supervisely/supervisely: Focused on reliability, release-readiness, data provenance, and observability to strengthen developer productivity and platform robustness. Delivered features and fixes that reduce cycle time, improve data integrity, and enable end-to-end observability across PR validation, releases, and inference workflows.

November 2024

3 Commits • 2 Features

Nov 1, 2024

November 2024 highlights in supervisely/supervisely: two major feature deliveries that improve inference reliability, video frame workflows, and observability. The work strengthens business value by delivering more robust inference outputs, safer defaults, and clearer workflow warnings, while enabling precise frame-level data access and proactive tracking notifications. Technologies demonstrated include Python API design, ImageInferenceCache enhancements, VideoFrameReader for efficient frame extraction, and improved log/workflow message handling.

Activity

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Quality Metrics

Correctness86.0%
Maintainability83.8%
Architecture83.2%
Performance77.4%
AI Usage26.2%

Skills & Technologies

Programming Languages

BashCSSHTMLJSONJavaScriptMarkdownPythonYAMLrst

Technical Skills

AIAPI DevelopmentAPI IntegrationAPI integrationAsynchronous ProgrammingBackend DevelopmentBug FixingCI/CDCLI DevelopmentCache ManagementCachingCode RefactoringCommand Line Interface (CLI)Computer VisionConfiguration

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

supervisely/supervisely

Nov 2024 Feb 2026
16 Months active

Languages Used

PythonYAMLHTMLJavaScriptrstCSS

Technical Skills

API DevelopmentBackend DevelopmentBug FixingComputer VisionLoggingMachine Learning

supervisely/developer-portal

Jan 2025 Jan 2025
1 Month active

Languages Used

BashJSONMarkdownPython

Technical Skills

DocumentationPythonPython DevelopmentSupervisely SDKWeb Development