Abhijith Sai Thirunahari - AI and AWS Developer

Q: Where is Abhijith Sai based?

Abhijith Sai is based in Freiberg, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Abhijith Sai speak?

Abhijith Sai speaks the following languages: English (Advanced), German (Intermediate) .

Q: How many years of experience does Abhijith Sai have?

Abhijith Sai has at least 6 years of experience. During this time, Abhijith Sai has worked in at least 2 different roles and for 2 different companies . The average length of individual experience is 3 years and 10 months . Note that Abhijith Sai may not have shared all experience and actually has more experience.

Q: What is Abhijith Sai's latest experience?

Abhijith Sai's most recent position is AI and AWS Developer at FannieMae .

Q: What companies has Abhijith Sai worked for in recent years?

In recent years, Abhijith Sai has worked for FannieMae .

Q: Which industries is Abhijith Sai most experienced in?

Abhijith Sai is most experienced in industries like Banking and Finance and Education .

Q: Which business areas is Abhijith Sai most experienced in?

Abhijith Sai is most experienced in business areas like Information Technology , Finance , and Research and Development . Abhijith Sai also has some experience in Business Intelligence .

Q: Which industries has Abhijith Sai worked in recently?

Abhijith Sai has recently worked in industries like Banking and Finance .

Q: Which business areas has Abhijith Sai worked in recently?

Abhijith Sai has recently worked in business areas like Finance , Information Technology , and Research and Development .

Recommended expert

Freiberg, Germany

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Experience

Jun 2018 - Jan 2023

4 years 8 months

Reston, United States

AI and AWS Developer

FannieMae

Architected end-to-end credit risk pipelines by orchestrating Airflow ETLs and training LSTMs/Transformers to predict default and prepayment speeds on MBS portfolios.
Developed Deep Learning NLP solutions using BERT and LayoutLM for document processing, leveraging Transfer Learning and custom PyTorch loss functions to automate underwriting.
Optimized R&D lifecycles through Bayesian tuning, Batch Normalization, and MLflow tracking to ensure robust model performance throughout volatile mortgage market cycles.
Productionized scalable MLOps infrastructure via Docker and INT8 Quantization, deploying low-latency FastAPI microservices on AWS SageMaker with automated CI/CD pipelines.
Ensured regulatory compliance by integrating SHAP/LIME for explainability and establishing real-time Data Drift monitoring to meet strict FHFA and Fair Lending standards.

Jun 2017 - May 2018

1 year

Reston, United States

Java and AWS Developer

The College Board

Directed the large-scale migration of customer marketing data from legacy Epsilon systems to Salesforce Marketing Cloud, ensuring data stayed accurate using Java and AWS.
Developed and managed 15 automated data pipelines using AWS Glue and EMR to extract and move high volumes of data from Oracle database to the SFMC cloud.
Built backend integration services using Java to link internal company databases with modern cloud platforms, improving overall system coordination.
Simplified server management by using AWS Lambda and CloudFormation (CFT) to automate repetitive data tasks and reduce manual maintenance.
Utilized AWS Athena to run fast queries on the massive dataframes stores in cloud, to monitor data quality in real-time.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Banking and Finance and Education.

Banking and Finance

Education

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Finance, Research and Development, and Business Intelligence.

Information Technology

Finance

Research and Development

Business Intelligence

Summary

AI Engineer with over 5+ years of experience delivering high-performance machine learning models and cloud-native architectures. Currently pursuing a Master’s in Mathematics at TU Bergakademie Freiberg to combine rigorous analytical foundations with advanced computational modeling. I specialize in the full lifecycle of AI development, from deep neural architectures including transformers and CNNs to complex data analysis and agentic system orchestration.

I have experience of automating enterprise-level workflows and bridging the gap between theoretical research and production-ready solutions.

Skills

Programming Languages: Python, Java, C++, Sql, R
Machine Learning: Sci-Kit Learn, Tensorflow, Keras, Pytorch, Fast.Ai, Jax
Mathematical Frameworks: Petsc4py, Scikit-Fem, Neuralpde.Jl
Parallel Computing: Openmp, Mpi, Cuda C++, Gpu Parallelization, Distributed Computing
Data Analytics: Pandas, Numpy, Dplyr, Tidr, Data.Table
Big Data: Hadoop, Spark, Hive, Sqoop, Mapreduce
Visualization: Matplotlib, Seaborn, Ggplot2, Tableau, D3.Js
Large Language Models: Multi-Agent Orchestration, Rag, Prompt Engineering, Semantic Search, Low-Rank Adaptation, Semi Supervised Learning
Generative Ai & Deep Learning: Transformers (Vision, Music, Diffusion, Attention Mechanism), State Space Models, Variational Encoders, Pinns, Model Pruning, Quantization
Cloud Computing: Aws, Docker, Microsoft Azure, Gcp, Kubernetes
Agentic Ai: Hypothesis Testing, Bayesian Inference, Regression Analysis, Time Series Analysis

Languages

English

Advanced

German

Intermediate

Education

Oct 2023 - Present

Technische Universität Bergakademie Freiberg

Masters in Mathematics in Data and Resource Sciences · Mathematics in Data and Resource Sciences · Freiberg, Germany

Aug 2015 - May 2017

Marist College

Masters in Information System Management · Information System Management · Poughkeepsie, United States

Jun 2011 - May 2015

SR Engineering College

Bachelors in Electronics and Communication Engineering · Electronics and Communication Engineering · Warangal, India

Statistics

Experience

Total positions 2

Experience in Banking and Finance 4.5 y

Avg length 2 y 9 m

Longest experience 4 y 7 m

Global Experience

Countries worked in 1 (United States)

Primary country United States

Expertise

Recent roles AI and AWS Developer, Java and AWS Developer

Main industries Banking and Finance, Education

Main business areas Information Technology, Finance, Research and Development

Qualifications

Highest degree Master

Profile

Created

April 2026

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Frequently asked questions

Have questions? Find more information here.

Abhijith Sai is based in Freiberg, Germany and can operate in on-site, hybrid, and remote work models.

Abhijith Sai speaks the following languages: English (Advanced), German (Intermediate).

Abhijith Sai has at least 6 years of experience. During this time, Abhijith Sai has worked in at least 2 different roles and for 2 different companies. The average length of individual experience is 3 years and 10 months. Note that Abhijith Sai may not have shared all experience and actually has more experience.

Based on recent experience, Abhijith Sai would be well-suited for roles such as: AI and AWS Developer, Java and AWS Developer.

Abhijith Sai's most recent position is AI and AWS Developer at FannieMae.

In recent years, Abhijith Sai has worked for FannieMae.

Abhijith Sai is most experienced in industries like Banking and Finance and Education.

Abhijith Sai is most experienced in business areas like Information Technology, Finance, and Research and Development. Abhijith Sai also has some experience in Business Intelligence.

Abhijith Sai has recently worked in industries like Banking and Finance.

Abhijith Sai has recently worked in business areas like Finance, Information Technology, and Research and Development.

Abhijith Sai holds a Master in Mathematics in Data and Resource Sciences from Technische Universität Bergakademie Freiberg, a Master in Information System Management from Marist College and a Bachelor in Electronics and Communication Engineering from SR Engineering College.

Abhijith Sai is immediately available full-time for suitable projects.

Abhijith Sai's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

To hire Abhijith Sai, click the Meet button on the profile to request a meeting and discuss your project needs.

Daily Rate Distribution

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<€720 €720-800 €800-880 €880-960 €1040+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Average rates for similar positions

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Daily rate avg. 864 €

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1000

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Median rate 840 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.