Sagar S.

AI/ML Engineer & Data Science Specialist | Engineering Technologist | IT & Engineering

Nashik, Maharashtra, India

About

AI/ML Engineering and Data Science professional with 10+ years of engineering and leadership experience across Aerospace & Defense, Automotive, Electrical/Electronics, Entertainment Technology, Engineering, Industrial Standards & Regulatory compliance, Manufacturing and Logistics. Currently pursuing B.Sc. in Data Science & AI from IIT Guwahati with expertise in AI, ML, Deep learning, Data Science and Analytics. Unique blend of hands-on hardware/software, systems integration, testing, troubleshooting, and new product development with cutting-edge AI capabilities. Unique ability to bridge cutting-edge AI skills with deep engineering domain knowledge to deliver intelligent, data-driven solutions. Seeking AI/ML Engineering and Data Science roles to leverage this dual expertise to create impactful AI driven innovations.

Experience

  • AI LLM Trainer/Data Analyst/Annotator at Innodata Inc.
    Nov 2025 - Present · 9 mos

    ▪ Creating, curating, and annotating high-quality training datasets for LLMs and generative AI models, ensuring accuracy and relevance for model fine-tuning and RLHF. ▪ Developing and validating prompt-response pairs, instruction templates, and reasoning chains based on defined guidelines. ▪ Evaluating model outputs for factual accuracy, logical coherence, and policy compliance; identifying hallucinations and biases with structured feedback. ▪ Performing data analysis to identify annotation trends, quality gaps, and workflow inefficiencies; providing insights to improve guidelines and tooling. ▪ Labeling and moderating content using taxonomy-based classification while maintaining strict data security protocols. ▪ Performing quality checks, maintaining inter-annotator agreement (IAA), and collaborating with QA teams to ensure high-quality deliverables. ▪ Following annotation guidelines, JSON/CSV formatting standards, and SLAs while contributing to workflow and tooling improvements.

  • Electronics/Electrical Technologist at Electrovaya
    Dec 2022 - Apr 2023 · 5 mos

    ▪ Supported both legacy product lines and new product development initiatives for lithium-ion batteries, battery management systems (BMS), and related technologies used in heavy industrial electric vehicles and specialized applications. ▪ Collaborated on new product development by reviewing engineering drawings, schematics, and diagrams; resolved existing product issues in engineering labs and production environments. ▪ Provided engineering and technical support in developing and deploying embedded firmware, software, test plans, and programs. ▪ Directed and coordinated manufacturing, installation, testing, and documentation activities to ensure compliance with specifications, codes, and customer requirements. ▪ Performed testing, debugging, and troubleshooting of PCBs, PCAs, electronic systems, battery cells, hardware, firmware, and complete battery systems using test equipment, software, and test fixtures.

  • Lab Technologist at CSA Group
    Oct 2019 - Nov 2022 · 3 yrs 2 mos

    ▪ Performed comprehensive evaluations and testing on a wide range of electrical, electronic and IT/audio/video products (including cell phones, TVs, projectors, computers, servers, server racks, medical systems, power supplies, and battery systems)—strictly adhering to CSA, UL, and IEC standards, while authoring detailed test reports to support certification. ▪ Worked closely with all Engineers, Certifiers, Technicians and Clients for product evaluation, functions, drawings, schematics, and construction reviews to get through the certification process. ▪ Evaluated and certified a wide range of IT, Audio/Video, and Telecommunication equipment for compliance with international safety and efficiency standards, including UL/IEC/EN 60950 (Safety of IT Equipment), UL/IEC/EN 62368 (Hazard-based Safety for A/V & ICT Equipment), IEC 60065 (Safety of Audio/Video Electronics), IEC 60825 (Laser Safety Testing & Compliance), and Energy Star (Energy Efficiency Requirements). ▪ Collaborated with Standards, Technical Integrity, Inspection, and Metrology teams to provide the highest level of service and quality to clients while maintaining strict regulatory compliance. ▪ Spearheaded laboratory continuous improvement initiatives, including the design and construction of specialized test apparatus that enhanced testing capabilities. Ensured operational reliability by managing equipment calibration, maintenance, and compliance schedules.

  • System Test & Integration- Engineering Technologist at IMAX
    May 2018 - Oct 2019 · 1 yr 6 mos

    ▪ Led the assembly, integration, configuration, and end-to-end testing of complex theater systems, including IMAX cameras, laser projectors, audio/video subsystems, and environmental monitoring units. ▪ Collaborated with Program Managers, Engineers, and Quality teams for new product development and to resolve system-level issues, ensuring seamless integration, repair, and service delivery for global theater installations. ▪ Provided engineering support for hardware and firmware debugging, and contributed to automated test development using C, C++, and Python across Windows and Linux environments. ▪ Executed precision alignment, calibration, testing and integration of complex electro-optical and laser systems, ensuring adherence to IMAX's strict visual quality standards. ▪ Developed and refined standard assembly, test, installation and repair procedures, driving continuous improvement in manufacturing, service, installation and technical documentation.

  • Technical Support Specialist at SYNNEX Corporation/Concentrix
    Dec 2017 - Apr 2018 · 5 mos

    ▪ Provided first-level technical support for hardware, software, and applications across Windows, MacOS, iOS, and Android platforms including configuration, installation, basic usage and appropriate service level to warranty. ▪ Conducted remote troubleshooting and root cause analysis to diagnose and repair technical issues; managed end-to-end setup and secure data migration for newly deployed products across Windows, macOS, iOS, and Android platforms.