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ZY

Zhenis Yessimbekov

@F1zhen

AI Engineer/NLP/Data Science

Versatile ML/Backend Developer with 3+ years of hands-on experience building and shipping production-grade systems across 4+ organizations.

About

Delivered measurable results including 60% reduction in data processing time and AI-powered systems serving real business use cases. Experienced with LLMs, RAG pipelines, computer vision (YOLO), and full-cycle product development from architecture to cloud deployment. Strong technical leadership: drove key architectural decisions, mentored teammates, and independently completed multiple end-to-end projects. Skills: 1) Languages & Frameworks: Python (pandas, scikit-learn, PyTorch, LLM), SQL, Go 2) ML / AI: Transformers, HuggingFace, BART, GPT, Seq2Seq (Encoder-Decoder), RAG, YOLO, Fine-tuning Embeddings, Vector Search 3) Databases & Messaging: PostgreSQL, MongoDB, Redis, RabbitMQ, NATS, Celery Infrastructure & DevOps: Docker, Linux, CI/CD, gRPC, REST, Microservices Architecture, Terraform, AWS 4) Processes: Git, Agile, Scrum, Waterfall, Testing I’m always glad to make new acquaintances and explore exciting opportunities.😁!

Career

Experience: 1 years

Experience

Founder & Full-Stack Engineer

Serik

Jan 2026 — Present

Founded and built an AI food-analysis application with RAG, image processing, and AWS deployment; beta satisfaction exceeded 90%.

• Founded and independently built an AI-powered food analysis application from 0 to production, covering 60,000+ food products in the knowledge base. • Integrated an LLM as the core reasoning layer, enabling interpretation of food labels, nutritional analysis, and personalized dietary recommendations with 90%+ user satisfaction in beta testing. • Built a RAG pipeline with semantic vector search over a 50K+ document nutrition knowledge base, reducing irrelevant LLM responses by 70% compared to a prompt-only baseline.

Data Scientist

JSC Kazakhtelecom

Kazakhstan's national telecommunications operator.

Aug 2025 — Jun 2026

Built production computer vision, LLM, RAG, and predictive ML systems, including pipelines processing 500K+ daily events.

• Video Analytics: Developed and deployed computer vision pipelines for real-time video stream analysis across 200+ surveillance and infrastructure cameras, achieving 92%+ object detection accuracy using YOLO-based models. • LLMs: Built and integrated large language model solutions for internal automation tasks, reducing manual document processing time by 45% and enabling natural language querying over structured telecom data.

Full-Stack Developer

ORDES.KZ (datalook.kz)

Nov 2025 — May 2026

Built and deployed a sales analytics service for 100K+ daily transactions; cut data processing time by 60%.

• Architected a scalable sales analytics service from scratch, handling 100K+ daily transactions across multiple retail locations. • Implemented backend integrations and data aggregation pipelines, reducing data load and processing time by 60% through query optimization and smarter data handling logic. • Designed a normalized PostgreSQL schema supporting 10+ analytical report types with sub-second query response times on datasets of 1M+ rows.

ML Engineer (Intern)

NITEC

National Information Technologies, a Kazakhstan IT company providing information systems and e-government services.

Mar 2025 — Jul 2025

Trained and evaluated ML models and prototyped LLM applications; contributed to integrating two AI solutions into production workflows.

• Trained and evaluated 10+ machine learning models across classification, regression, and NLP tasks, achieving average accuracy improvements of 12% over baseline benchmarks. • Researched and prototyped LLM integrations for 3 internal AI applications, reducing manual processing time by approximately 25% per workflow. • Processed and cleaned datasets of 500K–2M records using pandas and scikit-learn pipelines, improving data quality scores by 30%.

Education

Bachelor, Software Engineering

Astana IT University

2026

Selected projects

ForteBank Hackathon — Tender Analysis Agent

Built an AI agent that automatically analyzed tenders: validated documents for correct and complete filling, and cross-checked new tenders against a database of already completed tenders using RAG-based retrieval.

InnovateX 2025 x ARMETA.AI — Digital Document Inspector

Developed a solution for automatic analysis of documents (scans, photos, PDFs): detection of stamps, signatures, QR codes/barcodes, and signatures located inside stamps, with generation of a target JSON format for document verification. Implemented a two-stage signature detection approach capable of finding signatures drawn over a stamp, partially covered by stamp texture, or barely visible on...

HackNu 2025 (MyLink) — SmartBot: AI-Powered CV Analysis System

Built a microservices-based application that analyzes CVs against job requirements using Gemini 1.5 Flash and conducts intelligent interviews: automatic generation of clarifying questions based on mismatches, a real-time WebSocket chat widget for candidates, and an HR admin dashboard.

Decentrathon 5.0 — Subsidy Allocation Decision-Support System

Built a full decision-support pipeline predicting the success probability of subsidy applications and ranking them by merit score: CatBoost model trained on temporal data with data-leakage protection, feature engineering, composite scoring, and a red/yellow/green risk-zone system. Decisions combine ML predictions with business metrics: applicant reliability (success history), project impact and...

Skills

Pythonpandasscikit-learnPyTorchSQLGoTransformersHuggingFaceBARTGPTSeq2SeqRAGYOLOFine-tuningEmbeddingsVector SearchLLMPostgreSQLMongoDBRedis