// Staff Machine Learning Engineer

Ravi
Rachakonda

17+ years building systems at scale — from founding Amazon Alexa to leading data infrastructure for Amazon Nova foundation models. I work at the intersection of ML research, distributed systems, and org-wide technical strategy.

17+
years building
AI systems at Amazon
3
granted US patents
including Echo Spatial Perception
4+
orgs aligned as
cross-org tech lead
0→1
Founding member of Alexa, Alexa Astro Personality,
Alexa AI Creative AI & FireTV AI Image Generator
Experience
Jan 2026 – Present
Amazon AGI
Senior ML Engineer, AGI Data Scaling
Cross-org tech lead setting data infrastructure strategy for Amazon Nova foundation models and the Nova Forge platform (aws.amazon.com/nova/forge/) — the standard data preparation platform for foundation model customization across internal and enterprise teams.
Nova Forge SDKRay on HyperPod Foundation ModelsData Infrastructure
2024 – Jan 2026
Amazon AGI
Senior Research Engineer, Nova Pre & Post Training
Cross-org technical lead across pre-training, data infrastructure, and evaluations orgs for Amazon Nova — Amazon's flagship family of foundation models. Drove org-wide adoption of NVIDIA NeMo 2.0, MegatronCore, and MegatronEnergon.
NeMo 2.0MegatronCore Multimodal LLMsDiffusion TransformersTriton Inference
2022 – 2024
Amazon
Senior SWE / Tech Lead, FireTV Background & Creative AI
Founded the Image Generation initiative across two org boundaries. Delivered the model productized as Amazon Bedrock's Titan Image Generation (Nova) — now in production. Founded Creative AI for Amazon Kids, ranked top 3 at launch.
Image GenerationAmazon Bedrock SageMakerMLOpsCI/CD
2018 – 2021
Amazon Lab126
Senior SWE / Tech Lead, Alexa Astro
Founded and led the Personality program for Amazon Astro — Amazon's first consumer home robot — defining the technical vision for expressive robot behavior and shipping to initial customers.
RoboticsPersonality AI0→1
Sep 2012 – Aug 2018
Amazon Lab126
SDE / Tech Lead, Alexa Platform
Founding engineer on Amazon Alexa. Tech lead across Weather, Sports, Movies, Notifications, and Echo Spatial Perception verticals. Scaled platform to 10,000+ TPS at 99.9% availability. Co-authored 3 granted US patents.
AlexaVoice AI Distributed SystemsPatents
Jul 2009 – Aug 2012
Amazon.com
Software Development Engineer
Built core Amazon Prime data processing pipelines and contributed to international Prime launches across Spain and Germany.
Amazon PrimeData Pipelines
Jul 2007 – Jul 2009
Sapient
Associate Software Engineer
Worked on software development projects across client engagements, building foundational engineering skills.
Software Engineering
Patents
Context-Based Device Arbitration
Awarded March 2022
Context-Based Device Arbitration
Awarded March 2022
Device Selection from Audio Data
Awarded June 2020
Skills
ML & AI
PyTorchNVIDIA NeMo 2.0 MegatronCoreMegatronLM Triton Inference ServerDiffusion Transformers Multimodal LLMs
Distributed & MLOps
RayApache Spark SageMaker HyperPodAWS Batch Distributed TrainingFault-Tolerant Pipelines
Cloud & Infrastructure
SageMakerECR S3Lambda DynamoDBEC2 CloudWatchCI/CD
Languages
PythonJava JavaScriptC++Shell
Contact

Let's connect.

Open to conversations about ML infrastructure, foundation model systems, and interesting technical problems at scale.

Interactive

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ravi@portfolio ~ %