wladyspb85@gmail.com | t.me/WladySpb | Novi Sad, Serbia | cv.wladyspb.pro
13+years shipping production backends
7Kreq/sec peak on a single API
10yr+stats core still live in production
4payment gateways integrated end-to-end
AboutSummary
the long version
Backend engineer turned technical lead — 13+ years building,
scaling and owning production systems, with team-leadership and
lead/architect responsibilities since 2018. I design high-load
distributed backends and I'm accountable for the
architectural decisions behind them.
Plain version of what I do: requirements analysis and system design
(I'd rather pick a fuzzy spec apart for an hour than ship a bug
for a month), architecture trade-off decisions (monolith vs.
microservices, relational SQL vs. column-store — I choose by
load, not by trend), and the documentation, code review and testing
discipline that keep systems alive for years.
Proof points
Designed and scaled a multi-tenant CPA (cost-per-action / affiliate marketing) platform whose API peaked at 7,000 requests per second.
A real-time statistics / analytics core I architected in 2016 is still running in production a decade later.
Integrated four payment gateways end-to-end (payment processing / billing integration).
Early adopter of ClickHouse for analytics; drove team-wide adoption of Vue.js and Docker.
Led a backend team from 2018 — code review, mentoring, architectural sign-off, automated-testing rollout.
AI-augmented development as a default, not a novelty.
I use Claude / Claude Code, ChatGPT, GitHub Copilot, Cursor and Codex
daily, and I own the agentic harness end-to-end. I stress-test
AI-assisted workflows in my solo indie game studio
(nomorecare.gg),
where I am sole architect, engineer and operator.
AI architecture with production engineering underneath.
I design agentic pipelines, own the harness around them, evaluate model
behaviour, and turn AI-assisted workflows into repeatable engineering
processes. My focus includes tool use, LLM fine-tuning, local models and
human approval at the points where correctness matters.
I validate these patterns in my solo studio at
nomorecare.gg:
a web-novel design pipeline and a game-master pipeline, with the first
version built on an agent framework. Engineering judgement remains the
foundation: agents draft, systems validate, and the owner approves.
Open to Tech Lead, Software Architect and Staff Engineer
roles where trade-offs and decisions matter more than volume of code.
Remote-first, based in Novi Sad, Serbia. English C1, Russian native.
Open to AI Architect and AI-Augmented Engineer roles where
agentic systems, model workflows and sound backend architecture meet.
Remote-first, based in Novi Sad, Serbia. English C1, Russian native.
ExperienceWork Experience
2013 → now
Jul 2022 – Jun 2026Remote
Senior Backend Engineer / Tech Lead atQuintegroSenior Backend Engineer / Tech Lead — Quintegro · Jul 2022 – Jun 2026 · Remote
Technical lead and senior backend engineer across a
collectible-car ecosystem — multiple products: event-car
rentals, US auction sites, an analytics platform, an RV
marketplace.
Served as tech lead on an event-car rental
marketplace through its support phase; designed the
seller-side deal-offer flow on an in-house PHP framework
(PHP, jQuery, MariaDB).
Built the backend for a data-heavy collectible-car analytics
dashboard: subscription-based price-alert emails, currency
converter, aggregated historical data blocks by car
generation and model, and an authenticating request proxy.
On a recreational-vehicle (RV) marketplace built on
microservices: delivered automatic
spam/abuse blocking, asynchronous image optimisation, CRUD
admin tooling and notification flows; built a
full local development environment for the entire
microservice fleet enabling cross-service testing;
rewrote the in-house DynamoDB library from raw arrays into a
query-builder API; owned release management.
Applied an Agents Framework, Claude Code
and AI process automation to the working
workflow: agents prepare drafts and implementation context,
while the owner reviews and approves the result.
Senior Backend Developer atPlaykotSenior Backend Developer — Playkot · Jul 2021 – Jun 2022 · St. Petersburg
Backend engineer on a live mobile-game backend under production
traffic: implemented multi-provider authentication with
account linking, and optimised partial-load /
lazy-loading patterns over MongoDB for hot player data
(performance optimisation under load).
Senior Backend Developer atRabota.ruSenior Backend Developer — Rabota.ru · Oct 2020 – Jun 2021 · St. Petersburg
Backend engineer on one of Russia's largest job boards
(high-traffic web platform): built the in-account
customer notification service, migrated client-account
features off a legacy codebase onto the new internal framework
(legacy modernisation), and extended
automated-test coverage across PostgreSQL-backed services.
Lead Backend (PHP) Developer atSmart LineLead Backend (PHP) Developer — Smart Line · Apr 2015 – Oct 2020 · St. Petersburg
Grew a small internal PHP utility into offergate.pro —
a multi-tenant CPA (cost-per-action / affiliate
marketing) platform with two product surfaces and a
ClickHouse analytics stack.
Designed a real-time statistics / analytics core
in 2016 that still runs in production today; the platform API
peaked at 7,000 requests per second
(high-load system design).
Led a small backend team from 2018: code review, mentoring,
architectural sign-off, and a team-wide rollout of
automated testing.
Early ClickHouse adopter for analytics; initiated the
team's migration to Vue.js and containerisation with Docker.
Full-Stack Engineer atTAXOFTFull-Stack Engineer — TAXOFT · Jan 2013 – Mar 2015 · St. Petersburg
Designed, built and maintained the full software stack of a
taxi-aggregator / ride-hailing service end-to-end — first
hands-on exposure to production scale and on-call operations.
Solo (one-person) indie game studio with three roguelike games in
development — sole owner of design, software architecture,
code, infrastructure and release. Used as a real-world test
bed for agentic AI / LLM-assisted (“AI-in-the-loop”)
development workflows.
AI pet projects include a pipeline for designing web novels and a
game-master pipeline for running structured tabletop scenarios; the
first game-master version is built on an agent framework and is
evaluated as an engineering workflow, not a toy prompt.
Near release
Terminal Stake
Stock-market roguelike with procedurally generated companies and hidden difficulty scaling. Pure terminal UI.
In dev
Incrememory
Fast auto-battler roguelike with deep upgrade mechanics.
In dev
Increvolution
Ecosystem-management roguelike with evolutionary mechanics.
Core competenciesSkills
literal index for search
Pinned
Roles / seniority
Technical LeadSoftware ArchitectStaff EngineerSenior Backend EngineerEngineering Team Lead