Ranking and search
Opportunity calculation, Elasticsearch/OpenSearch alignment, and consistency checks.
Hello!
I'm Abhinav
SDE III at Instahyre. Senior backend engineer building reliable systems, async workflows, search and caching layers, and practical tools.
About Me
Senior backend engineer focused on correctness, performance, and production safety. I work on domains where application logic meets infrastructure: ranking, search, queues, caching, data migrations, observability, and secure operational access.
Python
Go
Django
Celery
RabbitMQ
MySQL
Redis
Elasticsearch
OpenSearch
AWS
Datadog
CloudWatch
Sentry
Systems I work on
Async workflows
Celery and RabbitMQ pipelines, retry behavior, queue isolation, and long-running tasks.
Caching
Redis hot paths, TTL design, invalidation boundaries, and connection reuse.
Migrations
Schema changes, index rebuilds, backfills, feature flags, and zero-downtime cutovers.
Project archive
manager.ai
Generates quarterly developer evaluations from Phabricator data.
legacy-mac-wheels
Static package index for Python wheels on older macOS development machines.
homebrew-legacy
Homebrew tap for bootstrapping and maintaining legacy environments.
dotfiles
Shell-based local setup and development environment configuration.
register-page
PHP and MySQL login/register pages, an older public repo with auth basics.
object-detect
JavaScript object-detection experiment.
doc-scan
React and Express app that converts images to text using Tesseract.
mern-user-authentication
User authentication single-page app using the MERN stack.
angular-freehand-drawing-app
Angular drawing app for freehand canvas input.
keras-flask-app
Flask app that classifies digits drawn on a web canvas using a Keras model.
react-clock-app
Small analog clock interface built with React.
Experience
SDE III
- Own backend domains around opportunity calculation, candidate visibility, recruiter workflows, and background processing.
- Drive production rollouts involving search index changes, schema migrations, data backfills, and feature-flagged cutovers.
- Review performance-sensitive, security-critical, and data-integrity-impacting backend changes.
Senior Software Engineer
- Improved high-traffic systems across search, candidates, jobs, and opportunities.
- Designed Redis caching with TTLs, safe invalidation, and connection reuse for hot APIs.
- Debugged production issues involving RDS replica lag, deadlocks, CPU spikes, and lock contention.
Software Engineer
- Built employer team management with RBAC, auditability, and impersonation safety.
- Fixed authorization bypasses protecting premium features at API and UI layers.
- Integrated Datadog and Sentry with Celery for production observability and async error tracking.
Education
B.Tech, Computer Science
Undergraduate computer science foundation before moving into backend product engineering, production systems, and infrastructure-adjacent reliability work.