--- title: "abhishek mittal - Principal Software Engineer in Greater Bengaluru Area | Tal" description: "Meet abhishek mittal, Engineer and Architect - Distributed Systems based in Greater Bengaluru Area. AI stack includes claude code, codex, and github copilot. Explore public work links including github." image: "https://tal.club/meet/abhishek-mittal/share-image" --- # abhishek mittal on Tal ## Headline Engineer and Architect \- Distributed Systems ## About I'm a Principal Engineer and Architect with 20 plus years spent building the backend systems that move money, secure identity, and scale to billions of requests a day — and I still love getting hands\-on with the code\. I've led architecture for platforms where correctness, security, and uptime are non\-negotiable: PayPal's Billing & Subscriptions platform \(\~30% of PayPal's payment volume, $200B\+ annual TPV, \~1B API calls/day\) and JPMorgan Chase's global payment clearing across 50\+ clearing houses \(8× throughput growth, 50% P95 latency reduction\)\. Most recently in identity, I worked on enterprise IDaaS at Ping Identity — re\-architecting identity provisioning, directory synchronization, and Joiner–Mover–Leaver access\-lifecycle workflows into event\-driven microservices on OIDC and SCIM, and owning the shared platform library behind an 80\+ service fleet\. I pair that with a strong application\-security mindset: OAuth2/OIDC, SAML, RBAC, OWASP, encryption, secure\-by\-design architecture, and fleet\-wide CVE remediation\. I've built and led front\-end applications in JavaScript and Angular across Sapient, Expedia, JPMorgan, and PayPal, which gives me genuine full\-stack range\. Across payments, identity, travel, telecom, e\-commerce, and robotics, I've repeatedly gone from zero to deep domain expertise in a short time — a fast learner who becomes productive in unfamiliar problem spaces quickly\. What I do best: distributed and event\-driven systems \(Kafka, idempotency, saga, reconciliation, fault tolerance\), Java/Spring at scale, payments and identity platforms — and being a force multiplier, building the reusable frameworks and standards that make whole engineering organizations faster\. Most recently I co\-founded an early\-stage e\-commerce SaaS startup, architecting the platform end\-to\-end while going deep on AI/ML — building retrieval\-augmented \(RAG\) recommendation and model\-routing capabilities\. I'm energized by hard, large\-scale technical problems and by mentoring the engineers around me\. Always happy to connect with people building ambitious platforms\. Core: Java · Spring Boot · Distributed Systems · Kafka · Microservices · Payments · IDaaS & Provisioning · Application Security · JavaScript/Angular · AWS/GCP · Kubernetes · Platform Architecture ## Location Greater Bengaluru Area ## AI stack claude code codex github copilot langchain langgraph mcp ## Work experience Principal Software Engineer at Ping Identity, Oct 2023 \- Jul 2025 · 1 yr 10 mos, Hybrid, • Led multiple initiatives on the SaaS\-based identity platform, strengthening provisioning, platform services, reporting dashboards, and operations portals\. • Designed group provisioning integrations with Active Directory, AWS, and other SCIM\-compliant applications\. • Delivered performance improvements by upgrading Java \+ Spring Boot and rewriting Cassandra data layers for platform services\. Senior Staff Software Engineer at PayPal, Apr 2022 \- May 2023 · 1 yr 2 mos, 1\. Led architectural transformation of PayPal's Billing Agreements & Subscriptions platform underpinning \~30% of PayPal's payment value, $200B\+ annual TPV, \~1B API calls/day — consolidating multiple legacy APIs into a unified platform\. 1\. Redesigned consistency models, shifting non\-critical flows to eventual consistency to unlock 10X scalability without compromising financial correctness; modelled recurring\-charge / dunning as a saga with forward and backward recovery\. 1\. Partnered with product and engineering leadership on API modernization, tech\-debt reduction, and reliability strategy\. Sr Staff Engineer at PayPal, Apr 2022 \- May 2023 · 1 yr 2 mos, Bengaluru, Karnataka, India, As the Principal Architect for the Billing Agreement and Subscriptions products I •Led the design and implementation of features, serving millions of consumers worldwide\. •Defined the long\-term architecture for Billing & Subscription APIs, simplifying multiple legacy versions while improving reliability, observability, and security\. •Transitioned systems to eventual consistency, enabling them to scale to \~1B API calls/day and 150 plus billion dollars TPV annually\. Vice President, Principal engineer and Architect at JPMorgan Chase & Co\., Oct 2017 \- Apr 2022 · 4 yrs 7 mos, Bengaluru Area, India, • Designed and delivered gateway services integrating with 10\+ real\-time payment systems \(e\.g\., Faster Payments, SEPA Instant, RTP, IMPS\-india\) and 50\+ high\-value & low\-value clearing systems worldwide\. • Supported payment flows exceeding $12 Trillion annually across multiple markets\. • Built reusable components for authentication, messaging, file processing, and payment templates, used across 20\+ teams\. • Spearheaded JVM \+ SQL tuning, achieving an 8x TPS increase and 50% reduction in latency \(P95\)\. This role gave me deep expertise in building and operating mission\-critical, high\-scale systems\. Vice President at JPMorgan Chase & Co\., Oct 2017 \- Apr 2022 · 4 yrs 7 mos, 1\. Led architecture for the global payment clearing platform interfacing with 50\+ clearing houses — a distributed, event\-driven core with fault tolerance, regional failover, and consistent state across the payment lifecycle\. 1\. Achieved 8X throughput \(TPS\) growth and 50% P95 latency reduction through flow redesign, SQL optimization, and JVM tuning\. 1\. Designed the reliability spine with no distributed transactions by design — transactional outbox, end\-to\-end idempotency keys, saga\-style reversals, and three\-layer reconciliation for provable completeness\. 1\. Enabled parallel development of 20\+ gateway services via an inner\-sourcing model with reusable auth, messaging, and observability components\. Software Engineer at Expedia Group, Sep 2015 \- Apr 2017 · 1 yr 8 mos, 1\. Drove monolith\-to\-microservices transformation on AWS; designed a high\-performance rule engine evaluating 100K\+ rules/sec for flight pricing and booking, with auto\-scaling and observability \(Prometheus, Grafana, Micrometer\) reducing P95 latency to 300ms\. Software Dev Engineer at Expedia Group, Sep 2015 \- Apr 2017 · 1 yr 8 mos, Gurugram, Haryana, India ## Education B\.Tech, Computer Engineering, Aligarh muslim university ## Public links - github: https://github\.com/savi0909 [View the original profile](https://tal.club/meet/abhishek-mittal) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Person", "@id": "https://tal.club/meet/abhishek-mittal#person", "name": "abhishek mittal", "url": "https://tal.club/meet/abhishek-mittal", "image": "https://tal.club/meet/abhishek-mittal/profile-photo.jpg", "description": "Meet abhishek mittal, Engineer and Architect - Distributed Systems based in Greater Bengaluru Area. 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