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Curriculum vitae

Ruslan Gaiderbek

Fullstack Engineer · Head of Development. Seven years of commercial work, twenty live projects, two production systems led right now. Istanbul · Dubai · Singapore.

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Exactly the file recruiters print.

  • 7+Years
  • 20Live projects
  • 2Systems led now
  • 3Contours in code
  • 6Locales by hand

The whole depth of a product

Fullstack engineer with seven years of commercial experience, currently leading development on two production systems. Next.js and React on the front, NestJS, Prisma and PostgreSQL behind it, Terraform, Ansible, Docker and GitLab CI underneath, including DNS, TLS, firewalls, monitoring and backups that have been restored from rather than merely written.

Twenty projects live and publicly linked; three carry their full infrastructure in code. Since 2026, also the appointed outsourced IT function for a DFSA-authorised insurance intermediary in the DIFC.

Four rooms, one person

  1. Dragon Farm

    Head of Development · Frontend and DevOps

    2025 – present

    • Migrated production off AWS onto Hetzner in 7 minutes of downtime; the monthly bill fell from about $546 to roughly $140.
    • Rebuilt both ends: Next.js 16 client with six hand-written locales; NestJS 11 game server with a binary WebSocket protocol replacing a 27,378-line Python backend.
    • Observability and recovery contour: Prometheus, 29 alert rules, Loki, a cross-machine Telegram watchdog; a rehearsal brought the API up 17 minutes from zero.
    $546$140
    Monthly bill, before and after the move

  2. Investcare 2000 Ltd (UK)

    Head of Development and Sales Executive

    2019 – present

    • Built and run investcare-vet.com end to end: Next.js 16, NestJS 11, admin CMS and the whole Terraform/Ansible contour behind Cloudflare.
    • Six locales with no i18n library; imported hand-provisioned live infrastructure into Terraform, driving the plan to zero changes and zero destroys.

  3. Mammoth Dev

    Frontend Developer

    2024 – 2025

    • Seven-plus client projects on React and Next.js; a cost-calculator quiz growing from 9 steps to 24, pricing deterministically and rendering the estimate to PDF in the browser.
    • Studio-site effects written by hand instead of an animation library; prefers-reduced-motion treated as a kill switch rather than a hint.

  4. R-Trade (Istanbul)

    Web Developer to Head of Development

    Apr 2022 – Jan 2024

    • Joined as a developer, left leading a small team building sites and tooling for a foreign trade firm.
    • Rebuilt the main site line by line: 14 sections, 659 files, three production dependencies in total; assets went from 52 MB to 2.4 MB.

What the work is done with

Languages
  • TypeScript strict
  • JavaScript ES6+
  • Python
  • SQL
  • GLSL
Frontend
  • Next.js 14–16
  • React 18/19
  • FSD
  • CSS Modules
  • Redux Toolkit
  • SWR
Backend
  • NestJS 9–11
  • Node.js
  • Prisma 7
  • TypeORM
  • Binary WebSocket
  • BullMQ
Data
  • PostgreSQL 16/17
  • MariaDB
  • Redis
Infrastructure
  • Terraform
  • Ansible
  • Docker
  • Nginx
  • Hetzner
  • Cloudflare
  • Tailscale
  • AWS
CI/CD & Observability
  • GitLab CI/CD
  • Container Registry
  • Prometheus
  • Alertmanager
  • Grafana
  • Loki
Quality
  • ESLint strict
  • Stylelint
  • Prettier
  • Vitest
  • Jest
  • 100-line ceiling
Security & Governance
  • MFA/FIDO2
  • Least privilege
  • DFSA GEN 5.3/5.5
  • DIFC DP Law
  • BCP/DR

Thirteen of twenty, one line each

Full portfolio with live links at gitlab.com/VGM-Union

  • ggkey.studio

    Game studio

    Studio site with two mini-games written by hand without a single animation or game library.

  • mammoth-dev.vercel.app

    Pricing engine

    A quiz growing from 9 steps to 24, pricing deterministically and rendering the estimate to PDF in the browser.

  • everxnode-web.vercel.app

    NFT licences

    Rewritten pollingless with a 5 req/min limit and a six-code response contract.

  • ciclo-project.vercel.app

    Landing rewrite

    A hand-built fullpage engine replacing the library; across 141 files the largest is exactly 100 lines.

  • r-trade.vercel.app

    Foreign trade

    A 2022 Gulp site rebuilt line by line: 659 files, three production dependencies, assets from 52 MB to 2.4 MB.

  • lotus-estate-web.vercel.app

    Real estate

    All four routes render complete with zero network calls after the backend died.

  • intrust-web.vercel.app

    BNPL

    Assets 43 MB to 707 KB; 30 coverage pins fitted with a plate-carrée projection against five coastlines.

  • dragonfarmtest.com

    Game · 4 repos

    Telegram Mini App game moved off AWS in 7 minutes of downtime; restore drill measured at 17 minutes from zero.

  • investcare-vet.com

    B2B · UK

    Veterinary reagent distributor in six locales without an i18n library; infrastructure imported to a zero-change Terraform plan.

  • hanna-business.com

    Consulting · DIFC

    Bilingual site, whole contour self-hosted; a 1,052-line engineering log of 40 numbered decisions records the options that lost.

  • 4sale-web.vercel.app

    B2B aggregator

    A 69 MB Figma export became roughly 1 MB of WebP; dependencies from 40 packages to 5.

  • aann-ai.vercel.app

    Token portal

    The restoration moved a client-inlined OpenSea API key server-side and treated it as compromised.

  • everdime.vercel.app

    Investor relations

    Lost 2024 content rebuilt as 99 database rows from a dump and Wayback snapshots, verified byte for byte.

Advisory, on the record

  1. Outsourced IT Manager · DFSA-regulated insurance intermediary, DIFC

    2026 – present

    • Appointed outsourced IT function for a Category 4 firm; the role named in the firm’s board-level cyber risk policy, owning eight of the ten registers it requires.
    • Authored a rule-to-control-to-evidence matrix covering all 19 rules of DFSA GEN 5.5, GEN 5.3.21–5.3.27 and the DIFC Data Protection regime.
    • Raised unprompted, against my own commercial interest, that the engagement itself likely constitutes material outsourcing requiring regulator notification.

  2. Technical due diligence · oil and gas B2B marketplace

    2026

    • Identified the product as a purchased template; sized the backlog at 6–12 months for a team of 3–5 against the client’s stated 10–20 days; recommended declining both profit-share variants.

I build and document the technical controls so the firm’s compliance officer can evidence conformity to the regulator. I do not certify compliance.

Where the habits come from

ETU «LETI», Saint Petersburg
Information Systems and Technologies · 2018–2022
SAP S/4HANA Academy, SAP CIS
108 academic hours · December 2020 · certificate on file
Engineering practice
Four template repositories and a 225-line agent skill that takes an empty folder to a deployed site in one pass, with six points where it must stop and ask a human.
One check-all command
Types, ESLint at zero warnings, Stylelint, Prettier and tests: identical on my machine and in the pipeline. Exact versions everywhere.

Career · seven years, four rooms

  1. Investcare 2000 Ltd (UK)2019 – present
  2. R-Trade (Istanbul)Apr 2022 – Jan 2024
  3. Mammoth Dev2024 – 2025
  4. Dragon Farm2025 – present

Available for full-time roles, contract work and technical leadership · Istanbul · Dubai · Singapore

Download CV (PDF)PDF · 2 pages · A4 · print-ready