Staff Engineer · 13+ years experience
Bengaluru · pahninsd@gmail.com
Staff engineer with 13+ years of experience building and scaling distributed systems, optimizing performance, and leading engineering teams. Deep expertise in Rust, Ruby on Rails, and cloud-native architectures across API platforms, AI/ML pipelines, and developer tooling. Known for improving system reliability, mentoring engineers, and contributing to open-source projects.
- Supporting BoardEffect team members with engineering delivery and collaboration.
- Lead engineer in PactFlow India team, transitioning to API Hub/Swagger Hub using Step Functions (Rust).
- Led migration of asynchronous processing to Sidekiq, reducing queue latency and improving background job reliability.
- Contributed to open-source Pact Broker ecosystem, enhancing CI/CD integration and contract publishing.
- Improved CI/CD processes, database backups, performance, and scalability across core services.
- Tech: Ruby, Rust, Node.js, TypeScript, Python, AWS, DynamoDB
- Managed 6 fullstack engineers (RoR, Node.js, React, Rust) and 3 QA; handled stakeholder management, timelines, quarterly/annual planning.
- Owned sprint planning, daily standups, technical blocker resolution, conflict resolution, appraisals.
- Conducted team retros, 1:1s, cross-team collaboration; maintained ~95% sprint estimation accuracy.
- Tech: Ruby on Rails, Node.js, React, Rust, AWS, PostgreSQL
- Led team building client APIs from scratch; owned delivery, tackled tech debt via refactoring and CI/CD implementation.
- Adopted RSpec testing, maintained API docs, integrated RuboCop for code quality.
- Tech: Node.js, Ruby on Rails, TypeScript, AWS, PostgreSQL, React
- Integrated APIs, optimized SQL/load times, set up analytics/downtime alerts, automated RoR upgrades.
- Migrated infra to Google Cloud Kubernetes; set up DB replicas, automated workflows (migrations, SSL, alerts).
- Tech: Ruby on Rails, JavaScript, MySQL, Google Cloud, Bash, Python
- Mentored juniors, planned/estimated work, pair programming, code reviews.
- Tech: Ruby on Rails, JavaScript, MySQL, Google Cloud, Bash
- Handled debugging, tests, features, client discussions, project setup.
- Tech: Ruby on Rails, JavaScript, PostgreSQL, Google Cloud, Bash, Python
- Wayle (pahnin/wayle): Forked Wayle (Wayland layer shell built in Rust, compatible with Niri, Hyprland, etc.) with added dock support and bug fixes such as dropdown opacity fix.
- Whisper App (pahnin/whisper-ui): Real-time speech-to-text app using Whisper.cpp, built with Rust and Iced for Linux and Mac; minimal, performant, and lightweight for background operation.
- Noctalia Ollama Assistant (pahnin/noctalia-ollama-assistant): UI layer + conversation history compactor on top of Ollama for Noctalia Desktop Shell; supports multiple OpenAI-compatible providers with persistent multi-conversation chat.
- NVIDIA GPU Monitoring Plugin (pahnin/nvidia-gpu-monitoring-plugin): Real-time GPU metrics plugin for Noctalia Shell on Linux; polls nvidia-smi every 250ms with visual graphs, color-coded alerts, and customizable display options.
- FramePack Core Low VRAM (pahnin/framepack_core_low_vram): Forked FramePack with aggressive tiling optimizations for low-VRAM GPUs; restructured for pipeline integration.
- Past projects include SDXL Hunyuan video generation pipelines (FastAPI server + Android client) and pgAdmin GenAI desktop app.
Languages/Frameworks — Rust, Ruby, Ruby on Rails, Python, Node.js, TypeScript, React, JavaScript
Data/Infrastructure — PostgreSQL, MySQL, DynamoDB, AWS, Google Cloud, Kubernetes, Nginx, Shell scripting
Core Competencies — Performance optimization, Contract testing (Pact/PactFlow), CI/CD, Sidekiq, Database design, Project management, Mentorship, Agile
Tools — Jira, Git, Docker, GenAI pipelines (SDXL, Hunyuan, FramePack)