Personal details

ABHINAV A. - Remote back-end developer

ABHINAV A.

Based in: 🇳🇱 Netherlands
Timezone: Central Time (US & Canada) (UTC-5)

Summary

Full Stack Developer with 6+ years of experience in Designing architectures & building backends for scale.

Technologies - Golang, Node, PHP, JavaScript, Android, iOS, SQL, Kubernetes, Helm, Designing Micro-services Architecture, Kafka, ElasticSearch, RabbitMQ, React

I have led teams of developers to build large-scale complex products serving up to millions of requests with a peak of 3,000 RPS (requests per second). I have experience building autoscaling k8s infrastructures with 99.99% uptime.

I also have experience in developing native applications (Android/iOS) & SDKs which are used by millions of daily users (DAU).

I am always happy to mentor and be on the lookout for interesting freelance projects.

Work Experience

Full Stack Consultant
Growsurf, US | Jun 2022 - Present
Node.js
Nginx
Elasticsearch
React
DigitalOcean
Kubernetes
AWS (Amazon Web Services)
- Set up a new k8s infra involving - RabbitMQ, Redis, MongoDB, CronJobs, ElasticSearch, Nginx-Ingress - Migrated 30 TB MongoDB database from ScaleGrid to DigitalOcean ensuring zero data loss via manual scripts.
  • Optimising CronJob performance. Job duration down by 50% and Peak MongoDB CPU usage down from 95% to 70% - Replaced nats; with & rabbitMq; for communication between different components of application. - Built an RBAC layer to allow admin users to invite new members to team and assign them different roles/permissions. - Improved instrumentation and debugging which helped in solving pending bugs. - Optimised Redis query performance in a flow building account history. It solved pod crashes for large users.
    • Fullstack Consultant
    Kubera, US | Oct 2021 - Jul 2022
    MySQL
    Nginx
    Elasticsearch
    React
    Kubernetes
    AWS Lambda
    Elastic Stack
    AWS (Amazon Web Services)
    - Implemented an FTS search using InnoDB MySql instance which improved search results for the tickers. - Brought up Grafana, ELK stack for monitoring & logging. Also responsible for daily maintenance & updates for the K8s cluster, EC2 machines, RDS instance. - Implemented rate limiting using nginx-ingress. Added health checks, PagerDuty, Pingdom alerts to critical APIs. - Developed API, cache system & Frontend component to fetch historical prices of tickers from the providers.

    Education

    University of Delhi, Netaji Subhas Institute of Technology
    Bachelor's degree・Engineering
    Aug 2013 - May 2017

    Personal Projects

    Android ApplicationsIconOpenNewWindows
    2017
    Android

    Certifications & Awards

    Top Hackers - Hackathon
    Booking.com
    FB BootStrap Programs
    Facebok