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Eldar Shakhvaliev
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Eldar Shakhvaliev

Fullstack developer with a backend focus · AI-augmented

Level: Middle+ → Senior · remote

sandk008@gmail.com · t.me/sandk0 · github.com/sandk0 · +7 988 220-14-12

PHP and Python, REST APIs, databases, integrations with external and corporate systems. Five years of commercial development (including a corporate portal for 1000+ users) and own products in production. Full cycle — from audit to deployment and support.

Experience

2026 — present

Independent AI-augmented development

  • Own products (fancai, telegram-bot) + full-cycle client work.
  • ~18 commercial projects in six months: WordPress, MODX, Bitrix, OpenCart, Laravel, FastAPI, Next.js.

H2 2025

Transition period

  • Started own products as a sandbox for a modern backend stack (Python/FastAPI, PostgreSQL, Celery, Docker).
  • fancai (08.2025) and telegram-bot (09.2025) — a bridge between employment and independent practice.

11.2020 — 12.2025

BIA Technologies · PHP/WordPress developer

  • Key developer of the BiaPortal corporate portal (1000+ users, a team of three).
  • Integrations: enterprise bus (ESB; 1C / AD / HR), SSO via Active Directory, org-structure module (hierarchical SQL + Redis cache), role system, Jira API.
  • Growth: frontend / markup (2020–2022) → backend and integrations (2022–2025).

Before BIA: Seotime (2020), Business Buro (2019–2020), Upwork (2018–2019).

Skills

Backend: PHP 7.4 / 8.x, Python 3.12, Laravel 11, FastAPI, aiogram 3, REST API, Celery / queues, WebSocket

CMS & platforms: WordPress (Plugin/Theme API, WooCommerce, FSE, ACF/SCF), MODX Revolution, 1C-Bitrix, OpenCart / ocStore

Frontend: TypeScript / JS, React 19, Next.js 16, TanStack Query, Zustand, responsive layout, CSS / SCSS

Data & infrastructure: PostgreSQL / pgvector, MySQL / MariaDB, Redis, Docker / Compose, Caddy / Nginx, VPS / Ubuntu, monitoring (Grafana / VM), CI/CD

Integrations: payments (YooKassa, TG Payments), marketplaces Ozon/WB/YM, Active Directory / LDAP, OAuth2 / Keycloak, Firebase FCM, enterprise buses (ESB), Jira API

AI / ML in products: LLM (OpenRouter, Gemini, Vertex), provider abstractions, image generation (FLUX.2), pgvector / semantics

Security & data compliance: security audit, 152-FZ / personal data, hardening (UFW / fail2ban), secret-scan, compliance (281-FZ, FZ-38)

AI-augmented process: Claude Code (subagents / skills / MCP), multi-agent orchestration, deep research, doc-driven, TDD contracts

Selected projects

fancai — AI fiction reader

AI reader for fiction with a spoiler-safe Entity Wiki and on-demand scene illustrations. Full-stack solo, deeply AI-augmented.

Telegram subscription service

A Telegram subscription service from scratch: bot, REST API, React admin, billing and automation; taken to real operation.

Turnkey infrastructure SaaS

Turnkey infrastructure SaaS: server infrastructure, self-employed payments and 152-FZ data compliance.

Laravel backend for an iOS app

Laravel production API: security-debt cleanup, DevOps and new endpoints.

Arctic-M — cooling systems catalog

Showcase catalog on a custom CPT+SCF stack with marketplace review synchronization.

plane — self-hosted PM system

Turnkey deployment of a self-hosted PM system: deploy, data migration via API, RU localization.