I am a senior machine learning engineer with 10 years of experience building scalable backend systems and ML solutions. I have engineered high-performance applications using Ruby, Python, and PyTorch, improving processing times by 25% and boosting prediction accuracy by 15%. Experienced in monitoring model performance, addressing drift, and collaborating with stakeholders to resolve issues, I deliver reliable, customer-focused solutions that enhance operational efficiency. Currently, I develop production-ready AI applications, optimize training processes, and build scalable backend services supporting consistent ML data pipelines. I thrive on resolving complex technical challenges and leading teams to implement continuous ML model improvements, ensuring robust performance and alignment with business goals.

Sam Khosravian

I am a senior machine learning engineer with 10 years of experience building scalable backend systems and ML solutions. I have engineered high-performance applications using Ruby, Python, and PyTorch, improving processing times by 25% and boosting prediction accuracy by 15%. Experienced in monitoring model performance, addressing drift, and collaborating with stakeholders to resolve issues, I deliver reliable, customer-focused solutions that enhance operational efficiency. Currently, I develop production-ready AI applications, optimize training processes, and build scalable backend services supporting consistent ML data pipelines. I thrive on resolving complex technical challenges and leading teams to implement continuous ML model improvements, ensuring robust performance and alignment with business goals.

Available to hire

I am a senior machine learning engineer with 10 years of experience building scalable backend systems and ML solutions. I have engineered high-performance applications using Ruby, Python, and PyTorch, improving processing times by 25% and boosting prediction accuracy by 15%. Experienced in monitoring model performance, addressing drift, and collaborating with stakeholders to resolve issues, I deliver reliable, customer-focused solutions that enhance operational efficiency.

Currently, I develop production-ready AI applications, optimize training processes, and build scalable backend services supporting consistent ML data pipelines. I thrive on resolving complex technical challenges and leading teams to implement continuous ML model improvements, ensuring robust performance and alignment with business goals.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Work Experience

Senior Software Engineer at Innosation
March 1, 2025 - June 15, 2024
Built AI applications with PyTorch to boost decision-making accuracy by 18%. Developed machine learning models integrating Autogen, LangChain, vector databases, and knowledge graphs, improving data retrieval speed by 30%. Created a scalable FastAPI backend framework interfacing with Redis and PostgreSQL. Streamlined AI model training with Pandas and Optuna, reducing training time by 25% while preserving accuracy. Addressed complex technical issues to ensure reliable AI and backend systems.
Senior Software Engineer at Taxmaro
December 1, 2024 - June 15, 2024
Built scalable APIs with Ruby on Rails and PostgreSQL supporting over 15,000 monthly transactions in HR and payroll platform. Architected modular integrations with DATEV and payroll systems, reducing errors by 20%. Led and mentored a team of six developers through Agile sprints, improving code quality and reducing bugs by 50%. Delivered reliable software solutions on tight schedules while resolving technical and team challenges.
Senior Software Engineer at Upmail Solution
February 1, 2021 - September 30, 2024
Enhanced platform performance by leveraging AWS and caching, reducing response times significantly. Optimized email campaigns with SQL queries to boost client conversion rates by 15%. Built features integrating Salesforce and Delphi for proposal workflows across multiple hotel chains. Improved code quality by 40% via code reviews and led Behavior-Driven Development projects to align software with business goals, driving 13% revenue growth.
Senior Software Engineer at DataGuard
October 1, 2019 - February 1, 2021
Developed full-stack features using Ruby on Rails, JavaScript, and PostgreSQL to enhance GDPR compliance SaaS platform. Mentored junior engineers to improve code quality. Reduced environment setup times by optimizing workflows with Docker. Queried large datasets to generate GDPR compliance reports and partnered with teams and clients to meet business goals, attaining high client satisfaction. Conducted code reviews to maintain clean code practices.
Software engineer at Undeveloped
December 1, 2018 - September 30, 2019
Built full-stack applications with Ruby on Rails, React, and Angular. Upgraded platform to Rails 5 and optimized PostgreSQL queries to improve page load times by 40%. Applied Test-Driven Development and Service-Oriented Architecture to create scalable APIs. Improved user engagement by developing domain filtering tools and integrated Elasticsearch to enhance search accuracy.
Software engineer at Round Table Apps
January 1, 2016 - December 31, 2018
Built backend applications with Ruby on Rails and Python supporting e-commerce and SaaS platforms. Optimized code and employed multithreading techniques to reduce response times by 35%. Integrated APIs including IBM Watson, AWS, Salesforce, and Xero to streamline workflows. Followed TDD, BDD, and Agile methodologies to deliver quality software on schedule. Managed multiple databases ensuring performance for thousands of users.
Senior Software Engineer at Innosation
March 1, 2025 - June 1, 2024
Built AI applications with PyTorch, creating agentic solutions that boosted decision-making accuracy by 18%. Developed machine learning models using Autogen and LangChain, integrating vector databases and knowledge graphs to improve data retrieval speed by 30%. Created scalable FastAPI backend framework, connecting Redis and PostgreSQL for efficient data handling. Streamlined AI model training with Pandas and Optuna, reducing training time by 25% while preserving accuracy. Solved complex technical challenges, ensuring reliable AI and backend systems for client projects.
Senior Software Engineer at Taxmaro
December 1, 2024 - June 1, 2024
Built scalable APIs with Ruby on Rails and PostgreSQL, powering HR and payroll platform processing 15,000+ monthly transactions. Architected modular integrations with DATEV and payroll systems, cutting data processing errors by 20% and streamlining client workflows. Guided and mentored a team of six developers improving code quality by 50%. Tackled complex technical and team challenges delivering reliable software on tight deadlines.
Senior Software Engineer at Upmail Solution
February 1, 2021 - September 30, 2024
Boosted platform performance using AWS and caching, cutting response times from 30 to 5 seconds for 1,000+ hotel sales professionals. Queried large datasets using SQL to optimize email campaigns, lifting client conversion rates by 15%. Built new features with Ruby and JavaScript, integrating Salesforce and Delphi to streamline proposal workflows for 20+ hotel chains. Improved team code quality by 40% through reviews, reducing bugs. Led Behavior-Driven Development projects aligning solutions with business goals for 13% revenue growth.
Senior Software Engineer at DataGaurd
October 1, 2019 - February 1, 2021
Developed full-stack features with Ruby on Rails, JavaScript, and PostgreSQL enhancing SaaS platform for GDPR compliance. Mentored five junior engineers improving code quality by 20%. Optimized workflows with Docker, reducing environment setup time by 30% for a 10+ member team. Queried large datasets to generate GDPR compliance reports. Partnered with cross-functional teams and clients achieving 95% client satisfaction. Reviewed GitHub code enforcing clean practices, reducing production bugs by 15%.
Software engineer at Undeveloped
December 1, 2018 - September 30, 2019
Built full-stack apps with Ruby on Rails, React, and Angular, adding user-friendly features for domain management. Upgraded platform to Rails 5 and optimized PostgreSQL queries, reducing page load times by 40%. Applied TDD and Service-Oriented Architecture to create scalable APIs. Developed domain filtering tools boosting engagement by 25%. Integrated Elasticsearch enhancing search accuracy by 30%.
Software engineer at Round Table Apps
January 1, 2016 - December 1, 2018
Built backend apps with Ruby on Rails and Python supporting e-commerce and SaaS platforms. Optimized code and used multithreading to reduce response times by 35% for high-traffic systems. Integrated IBM Watson, AWS, Salesforce, and Xero APIs streamlining analytics and workflows. Applied TDD, BDD, and Agile delivering scalable, quality software on schedule. Managed PostgreSQL, MongoDB, and Redis databases ensuring reliable performance for thousands of users daily.
Senior Software Engineer at Innosation
March 1, 2025 - June 14, 2024
Built AI applications with PyTorch, creating agentic solutions that boosted decision-making accuracy by 18%. Developed machine learning models using Autogen and LangChain, integrating vector databases and knowledge graphs to improve data retrieval speed by 30%. Created a scalable FastAPI backend framework connecting Redis and PostgreSQL for efficient data handling. Streamlined AI model training with Pandas and Optuna, reducing training time by 25%. Solved complex technical challenges, ensuring reliable AI and backend systems for client projects.
Senior Software Engineer at Taxmaro
December 1, 2024 - June 14, 2024
Built scalable APIs with Ruby on Rails and PostgreSQL, powering HR and payroll platform for 15,000+ monthly transactions. Architected modular integrations with DATEV and payroll systems, cutting data errors by 20% and streamlining workflows. Led a team of six developers through Agile sprints, mentoring and boosting code quality by 50%. Tackled complex technical and team challenges, delivering reliable software on tight schedules.
Senior Software Engineer at Upmail Solution
February 1, 2021 - September 30, 2024
Enhanced platform performance with AWS and caching, reducing response times from 30 to 5 seconds for 1,000+ hotel sales professionals. Optimized email campaigns with SQL queries, increasing conversion rates by 15%. Developed new features with Ruby and JavaScript, integrating Salesforce and Delphi to streamline proposals for 20+ hotel chains. Improved team code quality by 40% with rigorous reviews. Led Behavior-Driven Development projects achieving 13% revenue growth for clients.
Senior Software Engineer at DataGaurd
October 1, 2019 - February 28, 2021
Developed full-stack features with Ruby on Rails, JavaScript, and PostgreSQL, enhancing SaaS platform for GDPR compliance. Mentored five junior engineers, boosting code quality by 20% and reducing bugs. Optimized workflows using Docker, cutting environment setup time by 30% for a 10+ member team. Created GDPR compliance reports using SQL, assisting clients in meeting regulations. Partnered with cross-functional teams and clients, earning 95% satisfaction ratings. Enforced clean code practices, reducing production bugs by 15%.
Software Engineer at Undeveloped
December 1, 2018 - September 30, 2019
Built full-stack applications with Ruby on Rails, React, and Angular, adding user-friendly domain management features. Upgraded platform to Rails 5 and optimized PostgreSQL queries, reducing page load times by 40%. Applied Test-Driven Development and Service-Oriented Architecture to create scalable APIs. Launched domain filtering tools based on user feedback, increasing engagement by 25%. Integrated Elasticsearch to enhance search accuracy by 30% for buyers.
Software Engineer at Round Table Apps
January 1, 2016 - December 31, 2018
Developed backend applications with Ruby on Rails and Python, supporting e-commerce and SaaS platforms. Optimized code using multithreading to cut response times by 35% for high-traffic systems. Integrated IBM Watson, AWS, Salesforce, and Xero APIs to streamline analytics and workflows. Applied TDD, BDD, and Agile practices delivering scalable, high-quality software. Managed PostgreSQL, MongoDB, and Redis databases ensuring reliable performance for thousands of daily users.
Machine Learning Engineer at Innosation
March 1, 2025 - Present
Developed production-ready AI applications using PyTorch that improved model decision-making accuracy by 18% and facilitated effective client troubleshooting workflows. Engineered machine learning models with AutoGen and LangChain, integrating vector databases and knowledge graphs to enhance data retrieval and resolve performance challenges. Designed a scalable FastAPI backend for robust data handling between Redis and PostgreSQL, supporting consistent ML data pipelines. Optimized AI model training with Pandas and Optuna, reducing training time by 25% while maintaining accuracy and ensuring model stability. Resolved complex technical challenges to ensure reliable AI and backend system performance, supporting continuous ML model improvement.
Senior Software Engineer at Taxmaro
December 1, 2024 - Present
Engineered scalable APIs with Ruby on Rails and PostgreSQL, establishing robust data pipelines that supported analytical functions to enhance ML readiness. Developed modular integrations with DATEV and payroll systems, reducing data processing errors by 20% and streamlining workflows for advanced analytics. Mentored a team of six developers through Agile sprints, incorporating stakeholder feedback to iteratively improve software quality and support cross-functional initiatives. Addressed multifaceted technical challenges with minimal guidance, communicating transparently across teams to deliver reliable solutions in dynamic project environments.
Senior Backend and Machine Learning Engineer at Upmail Solution
September 30, 2024 - August 4, 2025
Boosted platform performance with AWS and caching, cutting response times from 30 to 5 seconds for over 1,000 hotel sales professionals. Queried large datasets using SQL to optimize email campaigns, lifting client conversion rates by 15% for hospitality bookings. Built new features with Ruby and JavaScript, integrating Salesforce and Delphi to streamline proposal workflows for more than 20 hotel chains. Improved team code quality by 40% through rigorous reviews, reducing bug reports. Led Behavior-Driven Development projects, aligning solutions with business goals to drive 13% revenue growth for clients.
Senior Ruby on Rails Engineer at DataGaurd
February 28, 2021 - August 4, 2025
Developed full-stack features with Ruby on Rails, JavaScript, and PostgreSQL, enhancing DataGaurd's SaaS platform for GDPR compliance. Mentored five junior engineers through pair programming and workshops, boosting code quality by 20% with fewer bugs. Optimized workflows using Docker, reducing environment setup time by 30% for a team of over 10 members. Queried large datasets with SQL to produce GDPR compliance reports, helping clients meet regulatory standards. Partnered with cross-functional teams and clients to align features with business needs, earning 95% client satisfaction ratings. Reviewed code on GitHub, enforcing clean code practices and cutting production bugs by 15%.
Full Stack Engineer at Undeveloped
September 30, 2019 - August 4, 2025
Built full-stack applications with Ruby on Rails, React, and Angular, adding user-friendly features for domain management. Upgraded platform to Rails 5 and tuned PostgreSQL queries, reducing page load times by 40% for search and checkout. Applied Test-Driven Development and Service-Oriented Architecture to create scalable APIs. Refined features based on user feedback, launching domain filtering tools that boosted engagement by 25%. Integrated Elasticsearch to enhance search, improving result accuracy by 30% for buyers.
Software Engineer at Round Table Apps
December 31, 2018 - August 4, 2025
Built backend applications with Ruby on Rails and Python, supporting e-commerce and SaaS platforms. Optimized code and used multithreading to cut response times by 35% for high-traffic systems. Integrated IBM Watson, AWS, Salesforce, and Xero APIs, streamlining analytics and workflows for clients. Applied TDD, BDD, and Agile practices to deliver scalable, high-quality software on schedule. Managed PostgreSQL, MongoDB, and Redis databases, ensuring reliable performance for thousands of daily users.
Machine Learning Engineer at Innosation
March 1, 2025 - Present
Developed production-ready AI applications using PyTorch, improving model decision accuracy by 18% and facilitating effective troubleshooting for client workflows. Engineered ML models with AutoGen and LangChain, integrating vector databases and knowledge graphs to enhance data retrieval and address performance challenges. Designed a scalable FastAPI backend for robust data handling between Redis and PostgreSQL, supporting consistent ML data pipelines. Optimized AI model training with Pandas and Optuna, reducing training time by 25%, maintaining accuracy and ensuring model stability. Resolved complex technical challenges to ensure reliable AI and backend system performance, supporting continuous ML model improvement.
Senior Software Engineer at Taxmaro
December 1, 2024 - Present
Engineered scalable APIs with Ruby on Rails and PostgreSQL, establishing robust data pipelines supporting analytical functions for enhanced ML readiness. Developed modular integrations with DATEV and payroll systems, reducing data processing errors by 20% and streamlining workflows for advanced analytics. Mentored a team of six developers through Agile sprints, incorporating stakeholder feedback to iteratively improve software quality and supporting cross-functional initiatives. Addressed multifaceted technical challenges with minimal guidance, communicating transparently across teams to deliver reliable solutions in dynamic project environments.
Senior Backend and Machine Learning Engineer at Upmail Solution
September 30, 2024 - August 4, 2025
Boosted platform performance with AWS caching, cutting response times from 30 to 5 seconds for 1,000+ hotel sales professionals. Queried large datasets using SQL to optimize email campaigns, increasing client conversion rates by 15% for hospitality bookings. Built new features with Ruby and JavaScript, integrating Salesforce and Delphi to streamline proposal workflows for 20+ hotel chains. Improved team code quality by 40% through rigorous reviews, reducing bug reports. Led Behavior-Driven Development projects aligning solutions with business goals, driving 13% revenue growth for clients.
Senior Ruby on Rails Engineer at DataGaurd
February 28, 2021 - August 4, 2025
Developed full-stack features with Ruby on Rails, JavaScript, and PostgreSQL enhancing SaaS platform for GDPR compliance. Mentored five junior engineers through pair programming and workshops, boosting code quality by 20% with fewer bugs. Optimized workflows using Docker, reducing environment setup time by 30% for a 10+ member team. Queried large datasets with SQL to produce GDPR compliance reports, helping clients meet regulatory standards. Partnered with cross-functional teams and clients to align features with business needs, earning 95% client satisfaction ratings. Reviewed code on GitHub enforcing clean code practices, cutting production bugs by 15%.
Full Stack Engineer at Undeveloped
September 30, 2019 - August 4, 2025
Built full-stack applications with Ruby on Rails, React, and Angular, adding user-friendly features for domain management. Upgraded platform to Rails 5 and tuned PostgreSQL queries, reducing page load times by 40% for search and checkout. Applied Test-Driven Development and Service-Oriented Architecture to create scalable APIs. Refined features based on user feedback, launching domain filtering tools that boosted engagement by 25%. Integrated Elasticsearch to enhance search, improving result accuracy by 30% for buyers.
Software Engineer at Round Table Apps
December 31, 2018 - August 4, 2025
Built backend applications with Ruby on Rails and Python, supporting e-commerce and SaaS platforms. Optimized code and used multithreading to cut response times by 35% for high-traffic systems. Integrated IBM Watson, AWS, Salesforce, and Xero APIs, streamlining analytics and workflows for clients. Applied TDD, BDD, and Agile practices to deliver scalable, high-quality software on schedule. Managed PostgreSQL, MongoDB, and Redis databases, ensuring reliable performance for thousands of daily users.

Education

DBA at Tehran Business School
January 1, 2021 - December 31, 2024
Master of Machine Learning at Tehran University
January 1, 2020 - December 31, 2023
Computer engineering at Guilan University
January 1, 2020 - December 31, 2023
DBA at Tehran Business School
January 1, 2021 - December 31, 2024
Master of Machine Learning at Tehran University
January 1, 2020 - December 31, 2023
Computer engineering at Guilan University
January 1, 2020 - December 31, 2023
DBA at Tehran Business School
January 1, 2021 - December 31, 2024
Master of Machine Learning at Tehran University
January 1, 2020 - December 31, 2023
Computer engineering at Guilan University
January 1, 2020 - December 31, 2023
MicroMaster at MIT
January 1, 2022 - December 31, 2023
Master at Tehran University
January 1, 2016 - December 31, 2018
Bachelor at Guilan University
January 1, 2011 - December 31, 2015
MicroMaster, Machine Learning at MIT
January 1, 2022 - December 31, 2023
Master, Machine Learning at Tehran University
January 1, 2016 - December 31, 2018
Bachelor, Computer Engineering at Guilan University
January 1, 2011 - December 31, 2015

Qualifications

Machine Learning
January 1, 2021 - December 31, 2021
Introduction to Data Science Specialization
January 1, 2021 - December 31, 2021
Applied Data Science Specialization
January 1, 2021 - December 31, 2021
Data Science Specialization
January 1, 2021 - December 31, 2021
Machine Learning
January 1, 2021 - December 31, 2021
Introduction to Data Science Specialization
January 1, 2021 - December 31, 2021
Applied Data Science Specialization
January 1, 2021 - December 31, 2021
Data Science Specialization
January 1, 2021 - December 31, 2021
Machine Learning
January 1, 0000 - December 31, 0000
Introduction to Data Science Specialization
January 1, 0000 - December 31, 0000
Applied Data Science Specialization
January 1, 0000 - December 31, 0000
Data Science Specialization
January 1, 0000 - December 31, 0000
Machine Learning Certificate
January 11, 2030 - August 4, 2025
Introduction to Data Science Specialization - IBM (Coursera)
January 11, 2030 - August 4, 2025
Applied Data Science Specialization - IBM (Coursera)
January 11, 2030 - August 4, 2025
Data Science Specialization - IBM (Coursera)
January 11, 2030 - August 4, 2025
Machine Learning Certificate
January 11, 2030 - August 4, 2025
Introduction to Data Science Specialization
January 11, 2030 - August 4, 2025
Applied Data Science Specialization
January 11, 2030 - August 4, 2025
Data Science Specialization
January 11, 2030 - August 4, 2025

Industry Experience

Software & Internet, Financial Services, Travel & Hospitality, Professional Services