Senior Software Engineer · Product Builder — Mews

Twelve years of front-ends and the teams behind them — most recently leading Flexkeeping's front-end through its acquisition by Mews. Now I build product end to end: design, architecture, code.

Nemanja Stojković — senior software engineer and front-end lead, Belgrade
Nemanja StojkovićEst. 2014

About

I'm a front-end engineer who kept getting handed the hard parts: architecture, hiring, the interface nobody could make fast. So far, that's meant shipping features for a live-streaming platform with ~50M monthly users, leading front-end teams at three companies, and building hospitality software that hotels around the world run their days on. These days I work across the whole product — engineering, design, and product decisions in one seat. I care about interfaces that feel considered, codebases that stay fast, and teams that get better because someone bothered to teach.

Interests
  • Building Things with AI01
  • Cooking02
  • Craft Beer03
  • Airsoft04
  • Gaming05
  • TV Shows06
Languages
  • SerbianNative
  • EnglishProfessional
Elsewhere

Experience

Oct 2025 — PresentRemote · Belgrade

Mews

Senior Software Engineer → Product Builder

The hospitality cloud powering 15,000+ properties across 85 countries. Joined through the Flexkeeping acquisition — still leading the product's front-end, now widening into full product ownership.

  • 01Lead the Flexkeeping product team's front-end through its integration into the Mews platform
  • 02Stepping into the Product Builder role — engineering, product, design, and QA in a single seat, in an AI-native organization
Aug 2023 — Oct 2025Remote · Belgrade

Flexkeeping

Lead Front-end Engineer

Hotel operations platform — automated housekeeping, maintenance, and team communication for hotels worldwide. Led the front-end from 2023 to the company's acquisition by Mews in autumn 2025.

  • 01Owned front-end architecture across the platform, with scalability and performance as the standing brief
  • 02Built secure, interactive product surfaces in React — interfaces designed for busy hotel teams, not demo days
  • 03Established the reusable component layer and led the performance optimization work
Feb 2021 — Dec 2024Belgrade

Peak Software Solutions

Lead Front-end Engineer

Software consultancy. Led front-end teams and set architectural standards across client projects — from Aug 2023 embedded full-time with Flexkeeping, an engagement that became a direct role.

  • 01Planned and set up front-end architecture for 10+ single- and multi-page apps across industries
  • 02Led development of an MVP for a social gaming network
  • 03Mentored junior developers, ran technical interviews, and organized knowledge-sharing sessions
Dec 2017 — Feb 2021Kragujevac

Quantox Technology

Frontend Developer · Technical Coordinator

Developed features for a live-streaming platform serving ~50M monthly users — high-traffic, media-heavy, and unforgiving about performance.

  • 01Shipped features on an application with ~50M monthly active users
  • 02Optimized images, video, and code paths for measurably faster page loads
  • 03Mentored ~12 junior and internship developers
  • 04Ran the company's technical interviews
Aug 2014 — Dec 2017Remote

Upwork

Freelance Front-end Developer

Independent front-end work for international clients — the years where the fundamentals got drilled in.

  • 01Delivered 20+ responsive, cross-browser websites
  • 02Built ~20 web applications, translating design wireframes into working interfaces
  • 03Hand-written HTML, CSS, and JavaScript — fundamentals before frameworks

Skills

Daily drivers
  • React01
  • TypeScript02
  • Remix / React Router03
  • Next.js04
  • Tailwind & Design Systems05
  • State Management06
  • AI-assisted Development07
In production16
Node.jsExpressNestJSGraphQLREST APIsPostgreSQLMySQLMongoDBRedisFirebaseCypressPlaywrightJestDockerViteCI/CD
Wider toolbox08
Figma & UI/UXVue.jsAngularPythonDjangoPHPLaravelHeadless CMS

Projects

Self-initiated UI studies — layout, motion, and typography drills in plain HTML, CSS, and JavaScript. The production work lives under Experience.

P.01

Wavynch — Software Solutions

SaaS landing study — layered depth, pricing UI, and marketing-page rhythm.

HTMLCSSJavaScript
View→
P.02

Intro — Interior Designer

Portfolio study for an interior designer — minimalist grid, editorial typography.

HTMLCSSJavaScript
View→
P.03

Luxe Living — Furniture Store

E-commerce study — product grid, premium tone, and considered motion.

HTMLCSSJavaScript
View→
P.04

LearnHub — Course Platform

Course-platform study — search, filtering, and enrollment flows.

HTMLCSSJavaScript
View→

More on GitHub ↗

Education

2010 — 2014Belgrade

Bachelor's Degree in Electronic Business

The School of Electrical and Computer Engineering of Applied Studies

A program at the intersection of software engineering and electronic business — where code met commerce.

2020 — 2020Online

Professional Certification

Epic React by Kent C. Dodds

Deep-dive React certification — advanced patterns, performance, and testing, taught by one of the ecosystem's best-known educators.

Let's talk.

I'm at Mews these days — happily busy, quietly open. If you're building something interesting, or wrestling a hard front-end problem, the inbox is the fastest route. Contract engagements run through devstojko, my registered practice in Belgrade.

devstojko@gmail.com→
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