KOUSHIK ROY

AI/ML Engineer — LLM Agents, NLP & Production ML Systems | Python, AWS | Pivoting toward Forward Deployed / GTM Engineering · Bengaluru

As a Programming Analyst, I am driven by a pragmatic ambition to architect and deliver robust AI/ML solutions. I thrive on the autonomy to tackle complex challenges, leveraging my resourcefulness and logical approach to achieve mastery in my craft, always taking full accountability for the outcomes.

Experience

Programming Analyst

Cognizant · Nov 2024 – May 2026

Not yet confirmed

• Developed and maintained production backend services in Python and REST APIs supporting Hong Kong Stock Exchange trade-monitoring infrastructure, delivering reliable software for high-volume workloads.
• Designed, implemented, and reviewed 35+ production software enhancements across 10 Agile sprints, improving maintainability, performance, and code quality through peer review and CI/CD practices.
• Extended automated correspondence-handling and ingestion mechanics (built during my Trainee role) to support trading-related correspondence workflows, reducing manual coordination overhead across cross-functional teams.
• Implemented RBAC and IAM access governance on AWS, strengthening secure infrastructure practices.
• Delivered technical documentation and guidance sessions on CI/CD and engineering best practices for junior developers.
• Triaged and resolved production issues by analyzing root cause and system impact, maintaining service reliability.

Programmer Analyst Trainee

Cognizant · Dec 2023 – Nov 2024

Not yet confirmed

• Built an automated mail-ingestion pipeline in Python using OCR and NLP-based classification to process incoming correspondence at scale; designed fallback detection and reprocessing logic to automatically catch and recover failed ingestions reducing manual overhead.
• Designed and owned an end-to-end validation and testing framework, proactively catching 50%+ of recurring defects pre-production and improving system health across deployments.
• Built additional workflow automation solutions in Python, reducing manual effort by 30% and accelerating processing cycles.
• Improved backend processing performance by 20% through query optimization, system profiling, and algorithmic improvements for high-volume applications.
• Collaborated with Agile delivery teams to translate requirements into shippable technical enhancements, supporting end-to-end deployment.

K

Teaching Assistant

KiiT University · Sep 2021 – Jan 2024

Not yet confirmed

• Co-designed an interactive curriculum with faculty, achieving a 90% student satisfaction rate.
• Led weekly review sessions for 80+ B.Tech students, contributing to a 20% improvement in quiz scores through structured technical communication.
• Provided 1:1 mentorship that helped cut failing grades by 50%, sharpening the ability to diagnose gaps in understanding and address them directly.