Public profile

Evgeny Kaledin

@AllSunday

Java Middle Backend / AI Engineer

Open to opportunities

Java 17

Python 3.11+

SQL

Java Backend Developer | Spring Boot, PostgreSQL & Kafka | Scalable Systems, Performance & Reliability | AI / LLM Engineer

AlmatyСПБГУП

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Career

Experience, skills, projects, and achievements.

Open to opportunitiesExperience: 2 years

Java Middle Backend / AI Engineer

Skills

Java 17Python 3.11+SQLSpringPyTorchHugging Face TransformersNumPypandasMatplotlibTransformerAttentionTransfer LearningLoRAQLoRAPEFTModel EvaluationMachine LearningAI Engineering

Selected projects

llm-monitoring

Локальный стенд для наблюдения за LLM: latency, стоимостью, drift и галлюцинациями

Open project

Support-JSON

AI-помощник поддержки SaaS. Разбирает обращения по правилам компании и готовит решение с черновиком ответа на русском. В основе Qwen3.5-4B с LoRA

Open project

speakcursor

Offline voice typing and push-to-talk dictation for Windows

Open project

vit-image-classifier

Дообучение Vision Transformer (google/vit-base-patch16-224) на три класса: cat / dog / panda. Базовые кубики ViT (patch embedding, токен [CLS], позиционные эмбеддинги и классификационная голова) написаны руками поверх предобученного энкодера. К проекту приложено небольшое демо на Gradio

Open project

Experience

Java Backend Developer

Konkordio

Oct 2024 — Present

Develop and support backend business logic for a high-load shipping and cargo transportation portal built with Java 17, Spring Boot, PostgreSQL, and React. • Resolve production incidents and improve platform reliability. • Optimized the booking flow by eliminating duplicate database calls, reducing more than 24,000 queries by approximately 5x under a 100-user load. • Performed load testing with Apache JMeter for up to 3,000 concurrent users and reduced p95 latency from 58–59 seconds to 5.7–6.5 seconds (~9.6x faster). • Refactored a monolithic module, separated functional areas, improved busin

Java Backend Developer

Platonus

Dec 2025 — Jul 2026

Developed and supported a high-load education platform serving 50,000+ users as part of an outsourcing team. • Built the backend for two interconnected modules from scratch: document workflows and document templating, based on an approximately 80-page functional specification. • Implemented end-to-end admission and expulsion application workflows, from request creation through approvals to final document generation. • Designed an internal templating engine for reports, certificates, statements, and other documents. • Contributed to microservice architecture, service boundaries, data models, a

Java Backend Developer

ProCode

Nov 2024 — Mar 2025

Developed a CRM system as part of a seven-person team with five developers, a team lead, and a product manager. • Designed the backend microservice architecture and implemented business logic for individual services. • Designed and implemented a role-based access control (RBAC) matrix to separate functionality and data by user role. • Designed a scalable database schema for core CRM entities and business processes. • Automated report and document generation with JasperReports and Apache POI. • Configured CI/CD pipelines and a containerized Docker Compose environment, standardizing service bui

Education

Bachelor's degree

СПБГУП

2022 — 2026

Applied Informatics

Entrepreneurship Foundations

Arizona State University

2026 — 2026

Course of Entrepreneurship Foundations

AI Engineering

Attractor School

2026 — 2026

6-month intensive program in ML/LLM systems covering RAG, AI agents, LoRA/QLoRA fine-tuning, model inference, evaluation, and MLOps.