Valerii

Valerii Sydoruk
Software Architect
Platform & AI Systems · System Design · Integration

[open contact info](look above in the "contact info" section) LinkedIn GitHub CV site Telegram Ukraine · B2 English

SUMMARY
18+ years in IT — from system administration through full-stack engineering and team leadership to designing complex software
systems end to end.
Most recently Frontend Team Lead on the frontend of a core module in a global enterprise audit platform; now focusing on software
architecture, system design, integration patterns, and AI-enabled systems.
I design and ship multi-layer systems myself when needed (Transynth, news automation pipelines, self-hosted AI infra) — so
architectural decisions are grounded in what actually runs in production.

Self-hosted inference, multimodal pipelines, and voice systems Enterprise module modernization & LLM-assisted engineering workflows

Led teams of 2–3 developers Full-stack background: frontend, backend, data, and infrastructure

OPEN TO
I focus on software architecture and technical direction — system design, integration patterns, and AI-enabled platforms — rather
than day-to-day feature implementation.

Roles Software Architect · Technical Architect · Technical Lead · Staff/Lead Engineer (Platform & AI Systems)
Format Remote · Hybrid
Availability Available now
Timezone Kyiv (UTC+2 / EET)

SELECTED SYSTEMS
Transynth
Self-hosted toolchain for localizing game mods. One pipeline — import, TM, LLM, review, QA, voice, export — sits behind a game
profile. Bethesda titles and Disco Elysium Final Cut are supported today; another game is mostly a new profile.

• Nine titles: Fallout 4/76/3/NV, Oblivion, Morrowind, Skyrim SE/LE, and Disco Elysium Final Cut
• Bethesda: import ESP/ESM/ESL, BA2/BSA, zip/7z/rar (MCM, Interface, PEX when in the tree); export STRINGS, patched ESP,
BA2/BSA, langpack or full-mod ZIP
• Disco Elysium: import Final Cut langpack (.po + .wav); export translated .po and localized WAV — no plugin, STRINGS, or
BA2/BSA path
Stack: TypeScript · React · Vite · Fastify · PostgreSQL · BullMQ · Redis · vLLM · OpenAI
GitHub

News Automation
Self-hosted news pipeline that ingests articles and video from Telegram, YouTube, and major media sources, extracts atomic events,
groups stories, and publishes to Telegram. It can run fully automatic — and currently does, on TeAIst.

• 96 monitored sources · continuous ingestion & story tracking · live unattended publish
• Multi-stage pipeline: fetch, transcription, media analysis, event extraction, story grouping
• Fully automatic mode is the default in production; optional editorial queue (publish now / later, review, drop) when a human
gate is wanted
Stack: PostgreSQL · pgvector · Prisma · vLLM · LLM · Telegram API · Python · Docker
Telegram · TeAIst

CAREER JOURNEY
InfoPulse 2021 – Apr 2026
Frontend Team Lead
Enterprise audit platform — core module (confidential global client)
Set the modernization direction for a core module frontend and drove a legacy-heavy codebase toward a more predictable, type-safe, and
review-driven engineering culture.

RESPONSIBILITIES
• Drove a phased JavaScript-to-TypeScript migration with a team of 3 frontend developers — 40%+ coverage in a large legacy
module — while keeping active delivery stable
• Conducted technical interviews and led hiring for 2 of 3 developers on the team
• Wrote a tech initiative on JS’TS migration and engineering quality; every team in the module adopted it after cross-team
alignment
• Introduced the module's first ESLint, Prettier, Husky, and CI checks in a legacy codebase where automated validation had not
existed — including fixing the initial error backlog
IMPACT
• Reduced PR build failures by approximately 90% after introducing the module's first lint/CI gates — PRs had often failed to
build on unchecked errors
• Improved pre-PR quality as developers caught recurring mistakes locally through AI prompts tailored to the module's codebase
and system behavior
Stack: React · TypeScript · ESLint · Prettier · Husky · SCSS Modules · LLM · Copilot

Lohika Sep 2020 – 2021
Senior Frontend Engineer
Clinical trials analytics platform (pharmaceutical)
Built performance-sensitive analytics UI for a pharmaceutical clinical trials platform, where large datasets, dynamic charts, and smooth
interaction were central to the user experience.
RESPONSIBILITIES
• Built interactive KPI charts and analytical dashboards with D3.js, React, and Redux
• Implemented smooth zoom and pan interactions for responsive exploration of large datasets
• Designed zoom-dependent data loading with aggregated views at low zoom levels and detailed datasets at high zoom levels
• Wrote unit tests, fixed complex rendering issues, and contributed to Docker-based local development workflows

IMPACT
• Delivered responsive clinical trial dashboards with viewport-aware data loading
• Improved application stability through unit testing and complex bug fixing

Stack: React · TypeScript · Redux · D3.js · Jest · Docker

Tecorien Aug 2018 – May 2020
Senior JavaScript Developer & Team Lead
All-in-one fleet management & logistics platform
Led frontend architecture and delivery for a custom fleet management and logistics platform — owned core technical decisions with a team
of 3 on implementation.
RESPONSIBILITIES
• Defined the frontend architecture using React with CanJS for structured state management and MVVM-style data models
• Built a Node.js wrapper around OSRM to support concurrent batch route-planning requests
• Implemented Node.js integration layers for Microsoft SSRS reporting and telemetry-related systems
• Led and mentored a team of 3 developers, including code review and technical decision-making

IMPACT
• Delivered scalable frontend architecture on React + CanJS MVVM for a greenfield logistics module
• Improved route-planning throughput through a multi-process OSRM integration

Stack: React · CanJS · Node.js · OSRM · MS SSRS · Material UI · Docker

DAXX Feb 2018 – Aug 2018
Senior JavaScript Developer & Team Lead
Ad-network automation platform
Led stabilization and ongoing development of a React/Redux platform for advertisement campaign automation across multiple advertising
networks.
RESPONSIBILITIES
• Developed and maintained the React/Redux application alongside the team
• Refactored legacy code to reduce regressions and improve maintainability
• Led and mentored a team of 2 developers, including code review and day-to-day task coordination
• Fixed bugs and improved stability in a fast-paced delivery environment

IMPACT
•

Improved stability of a legacy ad-network automation platform
• Raised code quality through structured review practices

Stack: React · Redux · Material UI

Dev-Pro.net Oct 2015 – Feb 2018
JavaScript Developer (Fullstack)
Multiple parallel client projects
Full-stack JavaScript development across several parallel client projects in financial analytics, streaming, document viewing, and com-
mercial real estate.
Stack: JavaScript · React · Redux · AngularJS · Node.js · Sails.js · MongoDB · Cassandra · Knockout.js · Docker · Google Maps · Webpack

PortaOne 2011 – 2015
Software Developer (Fullstack)
PortaSwitch telecom & IP-telephony platform
Built production experience on the PortaSwitch telecom platform, developing rich web applications and working across frontend, backend,
database, and server-side tooling.
RESPONSIBILITIES
• Developed and maintained data-driven RIA web applications using MVC architecture
• Worked with ExtJS, jQuery, Perl, Bash, and MySQL across frontend and backend tasks
• Researched and implemented server-side optimizations, including Google mod_pagespeed for automated asset bundling
• Wrote and optimized MySQL queries for telecom data and configuration workflows

IMPACT
• Reduced initial page load times through mod_pagespeed integration
• Delivered production-grade full-stack features on a complex telecom platform

Stack: JavaScript · HTML · ExtJS 3–5 · jQuery · Perl · Bash · MySQL · Linux · mod_pagespeed

2008–2011: System administration & Drupal CMS (Dancor Media, Panorama Media)

TECHNICAL BREADTH
Core Technologies
TypeScript · JavaScript · React · Redux
Backend & Data
Node.js · Fastify · PostgreSQL · MongoDB · Sails.js · Prisma
Visualization & Maps
D3.js · Google Maps
System Design & Architecture
Frontend architecture · System design · Integration patterns · Data-intensive applications · Performance optimization
Engineering Practices
Code review · Mentoring · Technical interviewing & hiring · Jest · Code quality (ESLint) · Debugging complex systems
AI & Automation
Self-hosted inference · Multimodal pipelines · ASR / diarization · TTS / voice cloning · Embeddings / vector retrieval · LoRA · vLLM · Prompt
engineering
Infrastructure
Docker · Linux · Proxmox · Python · Self-hosted systems

BACKGROUND
Education
Sumy State University
Master's Degree — Informatics, Mechanics and Mathematics
2004 – 2010