Ankit Jangwan

Hi, I'm Ankit. I build things.

5+

Years Experience

10+

Projects Delivered

DjangoExpressReactTypeScriptNode.jsPythonAWS

Skills & Technologies

43+ technologies across 5 domains

Backend

10 skills

PythonDjangoFastAPIFlaskNode.jsExpress.jsREST APIsGraphQLWebSocketsAsync (Celery, Redis)

Database

9 skills

PostgreSQL (advanced)MySQLRedis (caching, queues)MongoDBElasticsearchQuery OptimizationIndexingDatabase DesignN+1 Query Elimination

Cloud & DevOps

8 skills

AWS (EC2, RDS, Lambda, SES, S3, CloudWatch)Azure (VMs, Azure Database, Blob Storage)CI/CD (GitHub Actions, GitLab CI)DockerNginxGunicornSSL/TLSInfrastructure-as-Code

Monitoring & Tools

9 skills

DatadogSentryLogz.ioCloudWatchAzure MonitorcProfileDjango Debug ToolbarPostmanGit

Integrations

7 skills

Stripe (payments, webhooks, PCI)SendGridAmazon SESMSG91 (WhatsApp/SMS)Shopify/WooCommerce APIsOAuth2JWT

5

Domains

43+

Technologies

5+

Years

Featured Projects

A showcase of recent work and experiments

Work Experience5+ years building products across 4 companies

Instahyre

Software Development Engineer II

Jan 2025 – Jan 2026Remote, India
  • Backend performance: Led company-wide Django-to-Jinja migration across 40+ modules managed by 10+ teams; reduced page load from ~1000ms to <200ms (5x improvement). Optimized critical APIs (evaluations, notes, candidate screening) via SQL query rewriting (N+1 elimination, indexes, complex join rewrites), Celery/Redis async offloading, and Redis/Django cache strategies — reduced API response times by 40-60%.
  • System design: Architected unified candidate view backend integrating 5+ microservices with efficient data aggregation and low-latency queries (<50ms avg). Built Elasticsearch-based resume screening pipeline for candidate matching across large datasets.
  • DevOps collaboration: Worked with infra team on deployment pipelines and database migrations; led production incident response using Datadog, Sentry, and Logz.io.
  • Mentored SDE-1 engineers on backend best practices: async patterns, DB optimization, and API design.

Cloudify

Business Integration Specialist

Aug 2024 – Dec 2024Remote, India
  • Cloud infrastructure: Built and deployed Django/Express applications on AWS Serverless (Lambda, SST) and Azure; managed VMs, load balancers, PostgreSQL RDS/Azure Database instances.
  • Production integrations: Amazon SES (transactional email with retry logic, bounce handling), MSG91 (WhatsApp/SMS APIs with queue management for high-volume messaging), Stripe (payments, webhooks, subscription management, PCI compliance), Celery/Redis (distributed task queues for async processing), Shopify/WooCommerce (custom APIs for inventory sync and order webhooks).
  • DevOps ownership: Set up CI/CD pipelines (GitHub Actions, GitLab CI), configured SSL, automated deployments, DB backups, and monitoring (CloudWatch, Azure Monitor); maintained 99.5%+ uptime.

Saara Inc

Lead Software Developer

May 2022 – Aug 2024Remote, India
  • Backend architecture: Designed and built scalable Django + PostgreSQL backends with RESTful API patterns, JWT authentication, and role-based access control; optimized database schema for low-latency queries (<50ms avg) via proper indexing, select_related/prefetch_related (reduced query count by 40%), and caching for frequently accessed data.
  • AI backend: Built Django backend from scratch for SalesGPT AI sales assistant; integrated OpenAI APIs with rate limiting, retry logic, and exponential backoff; implemented Celery/Redis async pipeline for LLM response generation, webhook processing, and analytics aggregation.
  • End-to-end deployment: Full Azure setup (Gunicorn/Nginx, PostgreSQL, Redis, SSL, daemon processes) with monitoring, logging, alerting, and auto-scaling for AI workload spikes.

SHL

Software Engineer — Reporting & Scoring

Jul 2020 – May 2022Remote, India
  • Core backend developer on Reporting and Scoring platform (PHP/Symfony-based custom framework): Developed REST APIs, managed databases, and built candidate assessment report generation pipelines. Led final milestone migration of SHL evaluation logic into Aspiring Minds' modules post-acquisition, combining best-of-breed scoring and reporting algorithms from both platforms.

Ready to Work Together?— I'm always open to discussing new opportunities