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Sameesh Kher

PROFILE

Sameesh Kher

Developed and maintained bioinformatics modules and packaging workflows across the nf-core/modules and bioconda/bioconda-recipes repositories, focusing on spatial transcriptomics, ORF detection, and off-target binding prediction. Delivered features such as Xenium Ranger and Orfipy modules, as well as Conda packaging for Baysor and the opt pipeline, emphasizing reproducibility and automation. Leveraged technologies including Nextflow, Docker, and Python, with robust CI/CD, test automation, and metadata management to ensure reliability and cross-environment compatibility. Addressed packaging bugs and improved build scripts using bash and YAML, resulting in streamlined deployment, enhanced data analysis accuracy, and maintainable, versioned workflows for research pipelines.

Overall Statistics

Feature vs Bugs

86%Features

Repository Contributions

9Total
Bugs
1
Commits
9
Features
6
Lines of code
3,941
Activity Months5

Work History

June 2026

2 Commits • 1 Features

Jun 1, 2026

June 2026 monthly summary for bioconda/bioconda-recipes. Delivered a new Opt Pipeline for Off-Target Binding Prediction via the opt package, enabling automated prediction of off-target binding of probe sequences through nucleotide alignment. Packaging and build metadata were improved for Baysor to fix library path handling and versioning, increasing installation reliability across diverse environments. The work enhances design accuracy, reproducibility, and ease of deployment within the Bioconda ecosystem.

May 2026

2 Commits • 1 Features

May 1, 2026

Concise monthly summary for 2026-05 focusing on Baysor packaging improvements for bioconda-recipes and reproducible environment support. Key features delivered: - Delivered Baysor v0.7.1 Conda packaging: added a new recipe and packaging to install and run Baysor 0.7.1 in a conda environment, enabling Bayesian segmentation workflows for imaging-based spatial transcriptomics. Commit 278b35fada9116ef2884dba79c8186f4c5018a27 adds the recipe, build script, and package metadata. - Build tooling refinements: updated build.sh and meta.yaml to improve environment setup and increment the build number, supporting smoother deployments. Commit 11f1c4e8f316bb38400346e4156a770037e6f2b6. - Packaging quality improvements: applied lint fixes across the packaging workflow to improve reliability and compliance. Major bugs fixed: - No systemic bugs reported this month. Addressed packaging quality and consistency through lint fixes and build-script refinements. Overall impact and accomplishments: - Accelerated and reproducible deployment of Baysor 0.7.1 for researchers using spatial transcriptomics pipelines, reducing setup time and aligning with reproducibility goals. - Strengthened CI-like packaging workflow with clearer metadata, build configuration, and environment guarantees, enabling smoother downstream analyses. Technologies/skills demonstrated: - Conda packaging and recipe creation (bioconda/bioconda-recipes) - Build automation and scripting (build.sh, meta.yaml) - Environment reproducibility and packaging metadata management - Code quality and maintenance (lint fixes)

December 2025

2 Commits • 1 Features

Dec 1, 2025

Concise monthly summary for 2025-12: nf-core/modules delivered major feature work enabling robust ORF detection and transcript-level coding-region prediction, with a strong focus on reproducibility and quality. Key achievements: 1) Orfipy module added for extracting ORFs from nucleotide sequences via a Nextflow process, with environment configs and testing setups to streamline workflows. 2) TD2 modules introduced (td2.longorfs and td2.predict) with updates to version handling, snapshots, tests, and comprehensive metadata (meta.yml) improvements. 3) Code quality and metadata reliability strengthened through linting fixes, metadata corrections, and alignment of tests/snapshots. 4) Expanded test coverage and snapshots to ensure stable module behavior across updates. Impact: Improved accuracy and speed of genomic analyses, reduced manual curation, and enhanced reproducibility and governance of workflows via versioned modules and snapshots. Technologies/skills demonstrated: Nextflow/NF-core module development, Orfipy integration, TD2 tooling, environment/config management, version handling, test automation, and metadata management.

September 2025

2 Commits • 2 Features

Sep 1, 2025

2025-09 Monthly Summary for nf-core/modules: Delivered two high-value features with robust testing and clear business impact. Upgraded MultiQC module to v1.31 including environment and container image updates and refreshed nf-test snapshots to reflect the new version, reducing downstream breakages and preserving pipeline compatibility. Introduced Off-target Probe Tracker (OPT) module with three submodules (flip, stat, track), including Dockerfile setup, meta.yml files, and test coverage to align probe sequences to target genes and assess off-target activity. Expanded nf-test coverage and documentation, strengthening reproducibility and quality control across the module suite. All changes are versioned with clear commits for traceability.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024 — nf-core/modules: Delivered the Xenium Ranger Spatial Transcriptomics Modules, enabling advanced spatial analysis workflows. Implemented features to import segmentation data, relabel transcripts, rename sample regions, and resegment cells. The feature was integrated with comprehensive test coverage and Dockerfile configurations, and committed as part of a release (#6826). No major bugs were reported this month; emphasis on stability and reproducibility through CI/test automation. Business value: accelerates spatial transcriptomics capabilities, reduces manual data wrangling, and improves cross-environment reproducibility. Technologies demonstrated: modular design, Docker-based workflows, CI/CD, Git-based release management, and test-driven development.

Activity

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Quality Metrics

Correctness92.2%
Maintainability86.6%
Architecture91.2%
Performance84.4%
AI Usage22.2%

Skills & Technologies

Programming Languages

DockerfileGroovyNfPythonYAMLbashdockerfilenfyaml

Technical Skills

BioinformaticsCI/CDContainerizationDevOpsDockerLinuxNextflowPython developmentSoftware EngineeringWorkflow Managementbash scriptingbioinformaticscontainerizationdata analysisenvironment configuration

Repositories Contributed To

2 repos

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

nf-core/modules

Nov 2024 Dec 2025
3 Months active

Languages Used

bashdockerfilenfyamlDockerfileNfYAMLGroovy

Technical Skills

BioinformaticsContainerizationDockerNextflowWorkflow ManagementCI/CD

bioconda/bioconda-recipes

May 2026 Jun 2026
2 Months active

Languages Used

bashyamlPythonYAML

Technical Skills

bash scriptingbioinformaticsenvironment configurationpackage managementLinuxPython development