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WordPress Developer · Custom themes · ACF Pro Subotica, Serbia ·

Nemanja Janjić.

WordPress sites that are fast, easy for marketing teams to manage, and designed to turn traffic into tracked leads.

Send me your Figma See all projects
  • 200+ projects delivered
  • 7+ years in WordPress
  • 100% Job Success, Upwork
  • Top Rated on Upwork

Why clients hire me

Clients hire me when they want more than a pretty website.

  • Editable

    Builds marketing teams can update without breaking layouts.

  • Tracked

    Forms that send clean lead data into HubSpot, Zoho or your CRM, with UTM and ad attribution kept.

  • Fast

    Low-bloat custom code, Core Web Vitals improvements, no page-builder weight.

Selected work · 2020 — 2026

Real sites, live right now.

A few favourites from 200+ builds for community organisations, industrial brands, construction firms, agencies and publishers.

All projects 34 See the full list →

Services

Code and conversion.

Custom builds, white-label development for agencies, rebuilds from slow page builders, and the forms and tracking that make the leads count.

  • 01

    Custom WordPress themes

    Fully custom themes built from scratch: clean architecture, optimized performance and a scalable structure. No page-builder bloat.

    • PHP
    • JavaScript
    • Custom themes
  • 02

    ACF Pro blocks

    Flexible content systems so marketing teams can manage pages, sections and layouts without touching code or breaking layouts.

    • ACF Pro
    • Gutenberg blocks
    • Flexible content
  • 03

    Figma / Design → WordPress

    Pixel-perfect conversion of Figma, Adobe XD or PSD designs into custom WordPress themes.

    • Figma
    • XD
    • PSD
  • 04

    Forms, CRM & attribution

    Forms that send clean lead data into HubSpot, Zoho or other CRMs, with UTM and ad attribution preserved on every lead.

    • Gravity Forms
    • HubSpot
    • Zoho CRM
    • UTM
  • 05

    Custom functionality

    Custom plugins, API integrations, advanced search and filters, dynamic content and complex site logic.

    • Plugins
    • APIs
    • Search & filters
  • 06

    WooCommerce

    Custom WooCommerce builds, product logic, checkout customization and performance optimization.

    • WooCommerce
    • Checkout
  • 07

    Performance & Core Web Vitals

    Speed improvements, image optimization, caching strategies and a clean database. Rebuilds from slow page builders.

    • CWV
    • Caching
    • Rebuilds
  • 08

    Migrations & long-term support

    Migrations from legacy themes with redirects and schema, security fixes, and ongoing development for existing sites.

    • Migrations
    • Security
    • Support
  • 09

    AI assistants & automation

    AI FAQ assistants, content tooling and automations wired into the tools you already use: HubSpot, Gravity Forms, Zoho and WordPress.

    • AI chatbots
    • Embeddings
    • HubSpot workflows
    • Automation
  • 10

    Integrations & APIs

    Forms, CRMs and third-party APIs connected properly, with attribution, safety nets for failed syncs and clean data on every lead.

    • REST APIs
    • HubSpot
    • Zoho
    • Gravity Forms

AI & automation

AI where it actually helps.

Not every project has a screenshot. Behind many sites I build the parts nobody sees: AI assistants, content tools, CRM pipelines and automations that save teams hours every week.

See AI projects Automation & Integrations

How I build

From design file to tracked lead.

01 · Your design

It starts with your Figma, XD or PSD file, or the site you already have. I tell you the best approach before any code.

02 · Custom theme

Low-bloat custom themes in clean PHP and JavaScript. Rebuilds from slow page builders welcome.

03 · ACF Pro blocks

Flexible blocks so your marketing team can update pages without breaking layouts.

04 · Forms

Gravity Forms and multi-step flows that validate and send clean lead data.

05 · Attribution

UTM and ad attribution captured on every lead, with source and campaign kept.

06 · CRM

Every lead is pushed into HubSpot, Zoho or your CRM with its attribution attached.

The result

You know which campaigns are actually working.

01 Design FIGMA · XD · PSD 02 Custom theme PHP · JS · NO BLOAT 03 ACF blocks EDITOR-SAFE 04 Gravity Forms MULTI-STEP · VALID 05 UTM capture SOURCE · CAMPAIGN 06 HubSpot / Zoho CLEAN LEAD DATA Which campaign actually worked?

  1. 01 · Your design

    Figma, XD, PSD or your current site.

  2. 02 · Custom theme

    Clean PHP and JavaScript, no page-builder bloat.

  3. 03 · ACF Pro blocks

    Editors update pages without breaking layouts.

  4. 04 · Forms

    Multi-step flows that validate and send clean data.

  5. 05 · Attribution

    UTM and ad source captured on every lead.

  6. 06 · CRM

    Pushed to HubSpot or Zoho with attribution.

  7. The result

    You know which campaigns are actually working.

By the numbers

  • 200+ projects delivered
  • 1,459 hours logged on Upwork
  • 48 completed Upwork jobs
  • 100% Job Success score

Top Rated · 0–4h avg. response · English fluent, Serbian native

Verify on Upwork

Kind words

Agencies keep coming back.

5.0Verified Upwork reviews & endorsements

I hired Nemanja for multiple WordPress projects (webmagazine mostly) and he delivered outstanding products each time, perfectly in line with our expectations (quality, deadlines, etc). Relation has been very fluid, I totally recommend working with him as I keep doing so.

Marc B. Directeur associé, ÉVIDENCE ★★★★★

Best WP dev you can find!

Upwork client Long-term WordPress development · 805 hours ★★★★★

He’s been the backbone of our web projects and is a pleasure to work with. Nemanja’s technical skills are on point, he’s reliable, easy to talk to, and he’s got a knack for turning ideas into reality without any fuss.

Sinisa L. Creative Director / Digital Product Designer ★★★★★

Nemanja is very communicative, talented, and seems to truly care about his clients and his work. I would definitely recommend him!

Upwork client PSD to live WordPress site ★★★★★

Nemanja is a fantastic wordpress developer with whom I worked on multiple projects. He is fast, his work is excellent and he is professional, fast to respond and communicative. His problem solving skills saved us on many occasions.

Zeljko C. CEO ★★★★★

It was a pleasure working with Nemanja. He is fast, reliable and has great expertise. I highly recommend him and would work again with him any time.

Upwork client WordPress website fixes ★★★★★

Nemanja was great to work with, he had an excellent attitude and was very responsive.

Upwork client WordPress Developer ★★★★★

About

Hi, I’m Nemanja. I build WordPress that works.

I’m a WordPress developer based in Subotica, Serbia, with 7+ years and 200+ projects behind me, for law firms, construction companies, education providers, industrial brands, home-services businesses and agencies that need reliable white-label development.

My background is in economics, which is probably why I care about what happens after launch: clean lead data, honest attribution and sites teams can actually run.

  • WordPress
  • ACF Pro
  • PHP
  • JavaScript
  • jQuery
  • Gravity Forms
  • WooCommerce
  • HubSpot
  • Zoho CRM
  • Core Web Vitals
  • Figma → WP
  1. Now

    Freelance WordPress developer

    Top Rated on Upwork · white-label partner for agencies · nstudio.rs

  2. 2020 — 2025

    Senior Web Developer

    Trait Marketing

  3. 2021

    Web Developer

    JVDR

  4. 2021

    Marketing Member

    Global Capital Group

  5. 2012 — 2017

    BCom, Economics

    Megatrend University

Contact · usually replies in 0–4 hours

Send me your
Figma file.

Or your current website. I’ll tell you the best approach: custom theme, rebuild, migration, or just the fixes that matter.

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