# Rajesh Kumar

Rajesh Kumar is a remote worker on Himalayas, Principal Engineer at Fair Isaac Corporation (FICO), based in India.

Source: https://himalayas.app/@rajeshkumar28

```text
Principal Engineer at FICO who architected Agentic AI decisioning and a runtime delivering 100K RPS at sub-10ms P99 latency.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | India |
| Authorized to work in | India |
| Salary expectations | 6020k+ INR |
| Job categories | Principal Software Engineer, Engineering Manager, Software Architect, Technical Founder |
| Skills | Software Architecture, Engineering Leadership, Agentic AI, Generative AI, Large Language Models, RAG, LangGraph, MCP, Vector Search, AI Evaluation, Decision System, Distributed Systems, Microservices, Event Driven Architecture, High Throughput Systems |

## About

```text
At FICO, I architected Agentic AI capabilities that turn natural-language requirements into decision workflows, with human approval before publication. I also designed a cloud-native decision runtime delivering 100K RPS at sub-10ms P99 latency.

I built asynchronous evaluation capabilities to benchmark workflow correctness, retrieval, latency, and token efficiency. At Calix India Pvt Ltd, I architected a distributed streaming platform processing 5M+ events per hour and designed a low-code workflow engine used by 1,000+ technicians.

Earlier, I co-architected Samsung SmartThings cloud services and led modernization of a legacy e-commerce platform at Hitachi India. I also founded Jobleet, an AI-native hiring platform with automated interviews, multi-agent evaluation, and live coding sandboxes.
```

## Experience

### Principal Engineer

[Fair Isaac Corporation (FICO)](https://himalayas.app/companies/fico). May 2025 - Jul 2026

```text
Architected Agentic AI capabilities using LLMs, LangGraph, MCP, RAG, and Vector Search for decision workflows with HITL approval. Designed a cloud-native execution platform achieving 100K RPS at sub-10ms P99 latency and built AI evaluation and benchmarking for accuracy, quality, latency, reliability, and token efficiency.
```

Skills: C#, ASP.NET-Core, Azure-Event-Hubs, Python, Temporal, HITL, React, TypeScript, Kubernetes, gRPC, PostgreSQL, MongoDB, GitOps, ArgoCD, Tekton, Helm, OpenTelemetry, Prometheus, Grafana, LangGraph, RAG, Vector-Search

### Principal Software Engineer

[Procore Technologies](https://himalayas.app/companies/procore-technologies). Dec 2024 - Apr 2025

```text
Designed and developed a high-volume telematics ingestion platform using Temporal and Kafka for reliable, scalable real-time fleet data processing. Used AI agents to accelerate enterprise integration design and implemented durable scheduling, retries, failure recovery, idempotency, and E2E distributed tracing.
```

Skills: C#, .NET-Core, WPF, Python, AI-Agents, RAG, Azure-Event-Hubs, Temporal, OpenTelemetry, Honeycomb, REST-APIs, Microservices, Distributed-Systems, Telematics-and-IoT

### Staff Software Engineer

Calix India Pvt Ltd. Jun 2022 - Nov 2024

```text
Architected a distributed streaming platform processing 5M+ events/hour using C#, Kafka, Redis, and Kubernetes. Designed a metadata-driven low-code workflow engine enabling 1,000+ technicians to customize workflows without code redeployments, accelerating feature delivery by 15%.
```

Skills: C#, Web-APIs, Python, RAG, Vector-Search, Agent, React, Kafka, Redis, Elasticsearch, Kubernetes, AWS, Helm, ArgoCD

### Manager

[Hitachi India](https://himalayas.app/companies/hitachi). Apr 2021 - May 2022

```text
Led modernization of a legacy e-commerce platform into a serverless, event-driven microservices architecture on AWS. Architected an adaptive search pipeline using Elasticsearch/OpenSearch supporting approximately 1M searches/day and led high-volume data-processing initiatives using Spark, PySpark, AWS Glue, ETL, and CDC.
```

Skills: NodeJS, React, TypeScript, AWS-Lambda, API-Gateway, Serverless, DynamoDB, Amazon-SQS, OpenSearch, AWS-Glue, Spark, PySpark, CDC, Microservices

### Lead Member Technical Staff

[Athenahealth Pvt Ltd](https://himalayas.app/companies/athenahealth). Jan 2020 - Mar 2021

```text
Provided technical leadership for high-throughput healthcare interoperability solutions based on HL7/FHIR standards. Designed and developed a resilient parallel execution framework supporting 1,000+ TPS and drove analysis and resolution of distributed concurrency and thread-contention bottlenecks.
```

Skills: C#, WPF, Microservices, PostgreSQL

### Staff Engineer

[Samsung Electronics](https://himalayas.app/companies/samsung-electronics). Nov 2011 - Jan 2020

```text
Co-architected high-availability Samsung SmartThings cloud services powering global device connectivity, state synchronization, and remote management at scale. Architected the Samsung Smart Classroom suite and designed health and wellness microservices for Samsung Wearables, focusing on real-time telemetry and user security.
```

Skills: C#-.NET, WPF, WCP, .NET, ASP.NET-Core, Web-APIs, Azure-Event-Hubs, Azure, Kotlin, Python, TypeScript, React, Angular, Android, iOS, IoT

### Senior Engineer

Canon India Pvt Ltd. Jan 2009 - Nov 2011

```text
Designed SOAP/WCF automation-testing architecture for enterprise/ONVIF compliance, working across application and integration concerns.
```

Skills: C#, WPF, WCF, SOAP

### Senior Software Engineer

[Science Apps Intl Corp (SAIC)](https://himalayas.app/companies/saic). Apr 2006 - Dec 2008

```text
Architected simulation interfaces for Baker Hughes oil & gas modeling software, coordinating technical interfaces and application integration.
```

Skills: C#, WPF

### Software Engineer

Digital Domain India Pvt Ltd. Sep 2005 - Apr 2006

```text
Built multi-tenant CMMS maintenance-management architecture with focus on application structure and scalable business workflows.
```

Skills: C#, ASP.NET

### System Analyst

EIP Bulk Controls Pvt Ltd. Jul 2003 - Sep 2005

```text
Engineered industrial machine workflow automation systems, translating operational requirements into software workflows and technical solutions.
```

Skills: C#, WinForms

## Education

### United College of Engineering & Research

Bachelor of Technology, Computer Science & Engineering. 1999 - 2003. Grade: 75.4%

```text
Bachelor of Technology in Computer Science & Engineering from United College of Engineering & Research, India, from 1999 to 2003.
```

## Tech stack

- OpenAPI
- AWS Glue
- Kubernetes
- Helm
- React Native
- PySpark
- MySQL
- PostgreSQL
- MongoDB
- Node.js
- Next.js
- .NET
- ASP.NET Core
- Redis
- React
- Python
- Java
- C#
- Kotlin
- Kafka
- WCF
- FastAPI
- Grafana
- Prometheus
- OpenTelemetry
- GraphQL
- gRPC
- Elasticsearch
- OpenSearch
- TypeScript
- Docker
- Honeycomb
- Temporal
- Tekton
- Argo CD
- LangGraph
- AWS

To contact Rajesh, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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