InfrastructureComing soon
Cloud Migration Playbooks
Case studies from on-prem to AWS migrations — patterns, Terraform modules, and reliability lessons.
Link reserved for future case study
Rohit Nair
Enterprise systems.
Edgy execution.
Building resilient systems where failure isn't an option — cloud infrastructure, payments, and mission-critical backends.
Floral Park, New York · Open to senior roles
About
Built for systems
that can't fail.
Software Engineer · 10+ years
For over a decade, I've built software for industries where failure isn't an option. I find deep satisfaction in designing and maintaining the complex applications in healthcare, public safety, and payment processing that people rely on every day.
I'm an engineer who enjoys modernizing systems and tackling complex challenges head-on. While I have deep expertise across the .NET framework, I'm also a quick learner who has used Kotlin to port legacy services and picked up Go and Python for various projects. My recent focus has been on building resilient cloud infrastructure, leading efforts to migrate on-premise services to AWS.
I use Terraform to provision and manage cloud resources, helping build scalable systems from the ground up. My approach is rooted in persistence and collaboration — diving into difficult problems, working with the team to find the right solution, and seeing it through to completion.
Actively seeking a senior software engineer role building scalable, cloud-native solutions.
Core stack & domain
- Software Engineering
- Cloud Infrastructure
- Web Services
- AWS
- C# / .NET
- Kotlin
- Java
- Go
- Terraform
- Payment Processing
- EMV / UL Certification
- CI/CD
English
Native
Malayalam
Native
Hindi
Limited Working
Tamil
Elementary
Career journey
From pharmacy software to cloud-scale payments.
A decade across healthcare, public safety, fintech terminals, and high-throughput campaign platforms — always on systems people depend on.
Cardlytics
Software Engineer III
Mar 2023 — Oct 2025·2 yrs 8 mos
Atlanta, GA
- Designed and implemented features including adding support for annotated logos, banner images, ad reordering, and audience file imports via Amazon S3, improving campaign customization, and resolving Bottle necks.
- Administered Kafka topics, RabbitMQ queues, SQL databases, and Redis instances, ensuring operational stability and system uptime
- Managed CI/CD pipelines in TeamCity, Octopus, and later migrating them to GitHub Actions, automating builds, package deployment, schema validation, and Helm-based EKS deployments.
- Directed our teams globalization initiatives to unify technology stacks across regions, reducing complexity and operational costs
- Spearheaded further cost optimization by consolidating infrastructure, rightsizing compute resources, and migrating from MemoryDB to ElastiCache, reducing AWS costs by ~40%.
- Implemented SOPS for secure secrets management and IRSA for secure EKS authentication to AWS resources, enhancing security posture.
- Secured image publishing pipeline by migrating assets to private S3 bucket served via CloudFront with WAF protection.
- Migrated core campaign build system components from ASP.NET to Spring Boot with Kotlin using Clean-Architecture principles.
- Participated in on-call rotations, promptly resolving P1–P3 incidents to minimize service disruption.
- Developed custom SQL, Bash, Python scripts, and Go utilities for data repair, debugging, and reporting automation, reducing manual effort.
- Mentored and onboarded new hires and contractors, providing technical guidance and resolving blockers.
- Facilitated standups and team meetings in manager's absence to maintain alignment and delivery cadence.
- Coordinated cross-team collaboration on multi-domain projects to deliver complex feature integrations.
Cardlytics
Software Engineer II
May 2021 — Mar 2023·1 yr 11 mos
Atlanta, GA
- Maintained and enhanced ASP.NET & ASP.NET Core services for campaign publishing and also the Legacy Silver light Applications Used for Campaign Publishing and Lifecycle Management.
- Transitioned Publishing services from Older ASP.NET & and Silver Light Windows services to modern Asp.Net Core services running in Kubernetes Cluster.
- Developed Ad Delivery Manager, a workflow-driven publishing service using ELSA.NET increasing campaign publish success rate to 99.9%.
- Led migration of services and infrastructure from on-premises to AWS Cloud using Terraform (EKS, RDS, MemoryDB, EC2), enhancing scalability and performance.
- Contributed to organization-wide Terraform modules, standardizing infrastructure deployment and compliance.
- Worked on and Maintained the Various dashboards in Vue used to track campaign status and progress.
- Promoted to Software Engineer III
Cores Logics Technologies
Software Engineer
Jul 2020 — May 2021·11 mos
New York, NY
- Designed Cores Terminal for Pax Android terminals using BroadPOS Semi-integration SDK in Java.
- Developed Cores Messaging — a real-time API optimizing payment data transmission.
- Engineered Cores Service, a multi-platform controller for routing data to legacy systems.
Merchant First
Sr Terminal Developer
Feb 2018 — Jul 2020·2 yrs 6 mos
Greater Atlanta Area
- Designed and implemented FirstMile — secure EMV-compliant payment solutions for modern terminals.
- Built Android payment device applications in Kotlin and Java for seamless transaction processing.
- Achieved UL certification for FirstMile after rigorous security and EMVCo testing.
- Collaborated directly with CEO and CTO on critical bugs and feature delivery.
Micro Merchant Systems, Inc.
Software Developer
Feb 2014 — Feb 2018·4 yrs 1 mo
Syosset, NY
- Built and maintained applications in Visual Studio (C#) with TFS source control.
- Led WorldPay payment processing integration into Prime POS.
- Designed PrimeEsc electronic signature capture for Ingenico devices.
- Developed SQL queries and stored procedures for custom reporting and data conversions.
Tiburon
Software Developer — Total Enforcement
Aug 2013 — Jan 2014·6 mos
Melville, NY
- Maintained the Total Enforcement system supporting public safety for law enforcement agencies nationwide.
- Designed and integrated modules using WPF (MVVM & CSLA.NET) and WinForms.
- Authenticated to handle CJIS data after FBI background check.
Micro Merchant Systems, Inc.
Programmer / QA Analyst → Junior Programmer
Mar 2011 — Aug 2013·2 yrs 5 mos
Syosset, NY
- Developed JavaScript for Rx labels, receipts, and health insurance forms.
- Enhanced NH Forms design, improving deployment speed by 3×.
- Built authentication for the company backup application and Carepoints integration utilities.
Education
CUNY New York City College of Technology
Bachelor of Technology, Computer Information Systems
2008 — 2012
Education
Institute of Hotel Management and Catering Technology
Bachelor of Science, Hospitality Administration
2005 — 2007
Portfolio
Selected work — launching soon.
Deep-dive case studies from cloud migrations, payment platforms, and backend systems are being prepared. Links will land here.
FintechComing soon
Payment Terminal Platforms
EMV-compliant terminal software, UL certification journeys, and secure transaction pipelines.
Link reserved for future case study
BackendComing soon
Campaign Microservices
High-throughput publishing systems, CI/CD hardening, and on-call incident patterns.
Link reserved for future case study
Contact
Let's build something that holds under pressure.
Open to senior software engineering roles and conversations with engineering leaders shipping meaningful, cloud-native systems.