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Emil Kovacev

PROFILE

Emil Kovacev

Over six months, contributed to Qiskit/documentation and Qiskit/qiskit-ibm-runtime by building robust backend testing and simulation tools. Developed unified nb-tester backend testing with authentication and multi-provider support, enabling parameterized, environment-agnostic validation using Python and QiskitRuntimeService. Enhanced portability by resolving module import issues and introduced flexible command-line options for notebook workflows. Delivered inline configuration and backend selection via environment variables, improving deployment flexibility. Updated dependencies to support new tutorial capabilities and maintain compatibility. In Qiskit/qiskit-ibm-runtime, implemented the Nighthawk Quantum Backend Simulator, providing a device-like fake backend with comprehensive unit tests and code quality improvements for quantum circuit development.

Overall Statistics

Feature vs Bugs

83%Features

Repository Contributions

6Total
Bugs
1
Commits
6
Features
5
Lines of code
426
Activity Months6

Work History

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025: Delivered the Nighthawk Quantum Backend Simulator (fake backend) for Qiskit/qiskit-ibm-runtime, enabling circuit simulation and optimization without hardware access. Strengthened code quality and testing through linting, formatting, and new unit tests, with release notes to document the feature.

May 2025

1 Commits • 1 Features

May 1, 2025

May 2025 monthly summary focusing on Qiskit/documentation features and testing enhancements. Key deliverable: Nb-tester Testing Environment Enhancement via dependency updates enabling new tutorial capabilities and ensuring compatibility with updated tutorial components. This work is backed by commit 42ec9e414743d083874c1cff824c87115c8c84b3 with message 'Adds additional tutorials requirements for nb-tester (#3093)'.

April 2025

1 Commits • 1 Features

Apr 1, 2025

For April 2025, delivered inline configuration and backend selection for Qiskit Runtime Service within the Qiskit/documentation repo, enabling channel, URL, and instance initialization with a token fetched from environment variables and patching least_busy to select a backend by name. This improves deployment flexibility, reproducibility, and ease of use across environments.

March 2025

1 Commits • 1 Features

Mar 1, 2025

March 2025 monthly summary for Qiskit/documentation. Focused on delivering a flexible testing enhancement that decouples Nb-tester from QiskitRuntimeService when not required, enabling smoother notebook workflows and easier testing with fake backends.

February 2025

1 Commits

Feb 1, 2025

February 2025 monthly summary focused on delivering reliability improvements and ensuring nb-tester operability across environments. The primary effort was a bug fix in nb-tester under Qiskit/documentation to address ModuleNotFoundError when nb-tester is invoked from directories other than the installation root, enhancing portability of the tool within user workflows.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024 – Qiskit/documentation: Key feature delivered: Unified nb-tester backend testing with authentication and multi-provider support. This enables parameterized execution of nb-tester against any backend by passing authentication and configuration to QiskitRuntimeService, with provider and backend selection for environment-agnostic testing. Major bugs fixed: None reported for this period. Overall impact: increased testing coverage, more reliable CI across providers, and faster validation of runtime backend integrations. Technologies/skills demonstrated: Python, nb-tester, QiskitRuntimeService, authentication handling, parameterized testing, multi-provider configuration.

Activity

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Quality Metrics

Correctness86.6%
Maintainability86.6%
Architecture86.6%
Performance76.6%
AI Usage26.6%

Skills & Technologies

Programming Languages

Python

Technical Skills

Backend IntegrationCommand-line InterfaceDependency ManagementEnvironment variable managementModule ResolutionPackage ManagementPatchingPythonPython PackagingPython scriptingScriptingTestingbackend developmentcode quality assurancequantum computing

Repositories Contributed To

2 repos

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

Qiskit/documentation

Nov 2024 May 2025
5 Months active

Languages Used

Python

Technical Skills

Backend IntegrationScriptingTestingModule ResolutionPackage ManagementPython

Qiskit/qiskit-ibm-runtime

Dec 2025 Dec 2025
1 Month active

Languages Used

Python

Technical Skills

backend developmentcode quality assurancequantum computingunit testing