Headline

Software Engineer @Cisco | Python | Django | FastAPI | AWS | GCP | ex-Nagarro

About

I am a backend-focused engineer with 8+ years of experience building scalable, production-grade systems across SaaS, identity workflows, and revenue-impacting platforms. At Cisco, I own and evolve backend systems responsible for user identity reconciliation and billing-critical workflows. I focus on architectural refactoring, performance optimization, observability, and long-term maintainability. Previously, I’ve led modular framework redesigns, implemented RBAC-based authorization systems, built high-volume data pipelines, and integrated enterprise SSO solutions (Okta, Azure AD, Google). I also independently built and operate Swarnkary (https://www.swarnkary.com), a cloud-hosted SaaS platform on GCP serving jewellery businesses with secure multi-tenant workflows.

Location

Bengaluru

AI stack

antigravity

claude code

codex

cursor

hugging face

openai

Work experience

Software Engineer at Cisco, Nov 2024 - Present · 2 yrs 1 mo, Bengaluru, Karnataka, India, 1. Owned redesign of user identity deduplication system reducing latency by 35% and eliminating 1M+ daily API calls. 2. Led architectural improvements impacting billing data accuracy and downstream revenue workflows. 3. Implemented observability pipelines (Snowflake, Kibana) to proactively detect anomalies. 4. Collaborated cross-functionally to ensure backward-compatible rollouts.

Founder & Lead Engineer at Swarnkary, Oct 2025 - Mar 2026 · 5 mo, Bengaluru, Karnataka, India, Swarnkary is a cloud-hosted SaaS platform built for jewellery businesses to manage digital catalogs and operational workflows. • Architected and developed a multi-tenant backend system using Python • Deployed and managed infrastructure on Google Cloud Platform (GCP) • Implemented Role-Based Access Control (RBAC) and secure authentication workflows • Built admin dashboards and tenant management controls • Own end-to-end lifecycle: system design, development, CI/CD, deployment, monitoring, and production debugging

Associate Staff Engineer at Nagarro, Feb 2024 - Nov 2024 · 10 mos, Bengaluru, Karnataka, India, 1. Implemented a decoupled architecture using factory & abstract factory design patterns, reducing interdependencies by 40% for enhanced scalability and parallel development. 2. Restructured the framework to support multiple graph databases, cutting database-related issues by 35% and enabling seamless data source integration. 3. Developed APIs with strong authentication controls, decreasing unauthorized access attempts and ensuring data security compliance.

Senior Engineer at Nagarro, Nov 2021 - Feb 2024 · 2 yrs 4 mos, Gurugram, Haryana, India

Software Engineer Developer at FourthPointer Services Pvt Ltd, Sep 2020 - Nov 2021 · 1 yr 3 mos, Noida, Uttar Pradesh, India, 1. Created a Data Movement pipeline to transfer millions of records from Postgres to Elasticsearch with a success rate of 95% using AWS multiple services 2. Developed multiple APIs to manage all the users, their authorizations and permissions to the project 3. Created APIs to support Email based Multi Factor Authentication (MFA) to usermanagement micro-service 4. Configured Okta, Azure and Google Single Sign On (SSO) in django app

Sr Analyst / Software Engineer at Capgemini, Feb 2018 - Sep 2020 · 2 yrs 8 mos, Noida, Uttar Pradesh, India, 1. Developed the framework to run app in linux using Pramiko package and collect logs to compare with expected results. 2. Created scripts that reads testcases from excel sheets and performs set of operations and compare the actual results with expected results. 3. Created a batch job to executed multiple scripts at once and show results summary. The framwork became robust to provide 98% accuracy. 4. Trained multiple team members and new joinees to this project.

Education

Master of Science - MS, Computer Science, Woolf

Bachelor of Engineering - BE, Electronics and Communications Engineering, Burdwan University, Burdwan

Public links

github: https://github.com/ssanjay78