# Tejeswar Das

> Staff Software Engineer @ Apple | Platform Architecture

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/tejeswar

Design and development of middleware infrastructure technologies and Distributed systems, using Kafka, Flink and Akka.

Experience building microservices that are scalable, and provide high-availability and fault-tolerance.

## Work Experience
### Staff Software Engineer at Apple AMP Platform Architecture @ Apple
Jan 2022 – Present | Cupertino, California, United States
Building Event-Driven Data-Mesh using Flink and Kafka

### Senior Technical Lead Engineer @ Cisco
Jan 2016 – Jan 2022 | San Francisco Bay Area
Developed DNAC Platform Choreography Flow Engine, which powers DNAC use-cases, such as SD-Access, NFV, Device Assurance and ITSM integration.

### Staff Software Engineer @ VMware
Jan 2012 – Jan 2016
Worked on developing the infrastructure for vCloudAir Services, using vCloudDirector Networking, Redis, NATS, Google Protocol Buffers, Hazelcast, Akka and Docker.

### Senior Software Engineer @ Cisco
Jan 2008 – Jan 2012
Worked on Cisco SocialMiner: a social media customer care web-app. Contributions include implementing REST-based services and runtime for various components, such as XMPP Chat, RSS/Push Feed, Notification, default search capability of SocialMiner data using Apache Solr and Facebook integration.

Worked on developing a performance test framework, and used it to fix performance and scalability issues in chat and feed subsystems.

Worked on Cisco CCE Web Setup and ActiveDirectory User Migration Tool.

Also participated in the CCBU hack-day efforts and implemented the following demos:

- Exposed a CCE Web Setup component as a REST service using Jersey framework.
- Used Jetty and Websockets for SocialMiner chat feature, instead of poll-based chat from agent-side.
- Used Scala to write SocialMiner end-to-end functional tests.
- Used Netty to implement a pull-notification scheme for SocialMiner.

### Principal Engineer @ IONA Technologies
Jan 2000 – Jan 2008
Worked on Orbix ORB runtime, including the IIOP/IIOP_TLS protocol stack's asynchronous transport layer, GIOP layer and Notification Service. Worked on IDL compiler and Interface Repository. Also worked on performance and scalability improvements.

Worked on Artix ESB runtime, SOAP/HTTP and MQ transport plugins, threading models, interceptor framework and various WS-* protocols, such as WS-Addressing and WS-ReliableMessaging.

Represented IONA in AMQP transport working group.

### Senior Software Engineer @ New Era of Networks
Jan 1999 – Jan 2000


## Education
### B.Tech in Computer Science & Engineering
National Institute of Technology Warangal


## Contact & Social
- LinkedIn: https://linkedin.com/in/tejeswar-das-1910335
- GitHub: https://github.com/tejdas/

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Source: https://flows.cv/tejeswar
JSON Resume: https://flows.cv/tejeswar/resume.json
Last updated: 2026-04-12