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Yevhenii Dromov

@yevheniidromov

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Senior full-stack engineer building AI-powered SaaS with Laravel, Nuxt 3, and LLM-driven data systems.

Poland

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What I'm looking for

I’m looking for a role where I can own end-to-end AI SaaS architecture—backend, frontend, and Responsible-AI LLM systems—shipping secure, scalable products while reducing inference cost and improving retrieval quality.

I’m a senior full-stack engineer with 12+ years building SaaS platforms, AI-powered products, and data-intensive systems. I enjoy owning the full lifecycle—architecture, DevOps, backend, and frontend—with a focus on turning complex problems into reliable, shippable product capabilities.

Most recently, at Veskald, I built an embeddings pipeline on PostgreSQL + pgvector with hybrid semantic/keyword search and reranking. I designed LangChain/LangGraph multi-agent systems for crypto strategy design and backtesting, and I embedded Responsible-AI controls (prompt-injection defenses, PII detection/redaction, structured-output validation, and tenant isolation). I also cut AI/LLM operating costs by 80% using an internal LLM gateway for model routing, plus semantic/response caching and request batching.

Previously at AtlasEU, I architected an extensible visual workflow builder with clean boundaries and later absorbed AI features with zero core refactoring. I shipped a natural-language and voice-driven builder using LLMs (OpenAI) and speech-to-text (AWS Transcribe), and I established the enterprise security baseline (OAuth 2.0 / OIDC SSO, RBAC, multi-tenant isolation, OWASP Top 10 hardening, and SAST/SCA gates in CI/CD). Earlier, as a sole engineer at RootedFuture, I grew conversion with analytics-driven A/B testing, built a geolocation algorithm to reduce GPS error, and created a companion C# mobile app tied to real-time QR-based registrations.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer / Project Lead

Current

Veskald

Sep 2025 - Present (10 months)

Built a RAG/embeddings pipeline and multi-agent crypto strategy system in a Nuxt 3/Laravel/Python platform, reducing AI/LLM operating costs by 80% via an internal LLM gateway, caching, and batching. Implemented Responsible AI guardrails (prompt-injection defenses, PII redaction, structured outputs, tenant-isolated retrieval) and shipped news ingestion with FinBERT sentiment fine-tuning.

LangGraph PostgreSQL Redis LLM Gateways Prompt Engineering Prompt Injection

Software Architect / Project Lead

AtlasEU

Feb 2022 - Sep 2025 (3 years 7 months)

Architected an extensible visual workflow builder for a B2B SaaS and shipped an LLM- and voice-driven automation builder using OpenAI and AWS Transcribe, cutting setup time for non-technical users. Established enterprise security baseline (OAuth 2.0/OIDC SSO, RBAC, multi-tenant isolation, OWASP Top 10 hardening, and Snyk gates) and built video-to-workflow automation for YouTube/Instagram/TikTok wi

Laravel Workflow Automation AWS Transcribe OAuth 2.0 RBAC OWASP Top 10

Full-Stack Developer

IT-Serve

Aug 2021 - Feb 2022 (6 months)

Built a reusable cross-platform mobile frontend core with Vue.js and NativeScript, enabling multiple apps to ship from one codebase with minimal per-app work. Set up a testing baseline (TDD/BDD, unit + integration) and a modern JavaScript toolchain (Webpack, ESLint, Prettier) to stabilize shared components.

Vue.Js NativeScript Cross Platform Mobile Development TDD BDD Unit Testing Integration Testing Webpack ESLint Prettier

Full-Stack Developer (Sole Engineer)

RootedFuture LLC

Apr 2020 - Aug 2021 (1 year 4 months)

Owned end-to-end development of a tree-planting data and interactive mapping platform, delivering Laravel backend, Vue.js frontend, C# tooling, and deployment/infrastructure. Increased completed purchases by ~60% by diagnosing drop-off with Hotjar and A/B testing and redesigning checkout into a two-step Stripe/PayPal flow; engineered a GPS localization algorithm that reduced error and built a comp

Laravel Vue.Js C#Stripe Integration Hotjar A B Testing