Web Development Company in Warsaw

Commerce depth, not page count, sets the number on Warsaw web work: a scoped marketing or content site at Warsaw rates, a production e-commerce or marketplace web property with BLIK and Polish PSD2 web checkout, Allegro and Ceneo product feeds, headless commerce on Shopify Plus, Shopware, commercetools, or Saleor, and a Polish-language CMS, or full enterprise platforms with multi-region active-active deployments, KNF and DORA documentation, and EU AI Act Annex IV technical files for any AI features. Polish engineering talent ranks in the global top three on HackerRank, so Warsaw delivery is materially cheaper than London, Munich, or Amsterdam at equivalent quality. We give fixed-fee proposals rather than open T and M estimates.

Yes. Polish-language SEO is a discipline of its own, and we ship against the SERP realities Allegro.pl, Ceneo.pl, OLX.pl, and the vertical leaders define. We handle Polish diacritics (a, c, e, l, n, o, s, z, z) correctly across URL slugs (kebab-case ASCII with hreflang to Polish-diacritic variants where appropriate), meta titles, structured data, and on-page copy. We map keyword research against Google Polska SERPs, Allegro and Ceneo product-feed optimisation, and Polish long-tail intent that diverges materially from English-language equivalents. Technical SEO includes hreflang for pl-PL plus any English-language sister property, JSON-LD structured data, Open Graph and Twitter Cards in Polish, and submission to Google Search Console with the .pl property. Local SEO covers Google Business Profile in Polish, NAP consistency across Panorama Firm, PKT.pl, ZnajdzFirme, and ZnanyLekarz where applicable.

Yes. BLIK is effectively mandatory for any Polish consumer commerce web checkout, and we integrate against Polski Standard Platnosci APIs for BLIK one-time codes (the dominant Polish e-commerce checkout method), recurring BLIK for subscriptions, and BLIK P2P where the use case supports it. We integrate against Polish PSD2 Open Banking sandboxes for PKO BP, mBank, Pekao, ING Bank Slaski, Santander Bank Polska, Alior, Millennium, Credit Agricole Polska, and Citi Handlowy using STET, NextGenPSD2 Berlin Group, or PolishAPI variants depending on the bank, and we route through aggregators (Kontomatik, Tink, TrueLayer) where the licensing and KNF outsourcing economics earn it. Strong customer authentication on web follows PSD2 RTS Article 4 and Article 9 dynamic linking. Card payments add Polish Przelewy24, PayU (a Polish-founded gateway), Tpay, and Stripe with full BLIK plus Apple Pay and Google Pay coverage.

UODO has published some of the strictest cookie and tracker positions in the EU, and Polish websites that get this wrong have been fined publicly. Every Codazz Warsaw web engagement opens with a UODO and GDPR cookie review against UODO's published guidance and the EDPB's cookie banner guidelines (Guidelines 03/2022). We deploy a Polish-language consent management platform (Cookiebot, Usercentrics, or a self-hosted CMP) that implements granular per-purpose opt-in, a genuine reject-all button on the first layer, no pre-ticked checkboxes, no consent-or-pay walls unless the legal review specifically supports it, and a Polish-language cookie policy. Tag managers are gated behind consent (Google Tag Manager only loads accepted vendors), Google Analytics 4 is configured with consent mode v2 and IP anonymisation, server-side tagging defaults to EU regions, and we maintain a per-cookie record-of-processing aligned with GDPR Article 30.

The Polish Public Sector Accessibility Act 2019 (Ustawa z dnia 4 kwietnia 2019 r. o dostepnosci cyfrowej stron internetowych i aplikacji mobilnych podmiotow publicznych) makes WCAG 2.1 AA mandatory for every Polish public-sector web property, including gov.pl, ePuap, ZUS, CEIDG, KRS, and ministerstwo touchpoints, and requires a published Polish-language accessibility statement (Deklaracja dostepnosci) with feedback mechanisms and complaint routing through the Rzecznik Praw Obywatelskich. Codazz delivers WCAG 2.1 AA conformance with automated axe-core and Lighthouse a11y checks in CI, manual screen-reader testing with NVDA on Polish-language content, keyboard-only navigation testing, and a Polish-language accessibility statement published at the conventional URL pattern. We also align private-sector clients with the European Accessibility Act (Directive 2019/882) which applies from 28 June 2025 to e-commerce, e-books, banking, and consumer electronics.

Yes. We ship web flows that authenticate users through Profil Zaufany via gov.pl, sign documents through ePuap, pull insured-person data from the ZUS PUE platform where the user consents, query CEIDG (Centralna Ewidencja i Informacja o Dzialalnosci Gospodarczej) for sole-trader verification during onboarding, and look up companies in KRS (Krajowy Rejestr Sadowy) plus white-list VAT taxpayer status against the Biala Lista of the Ministerstwo Finansow. Public-sector and citizen-facing properties launch with WCAG 2.1 AA conformance under the Polish Public Sector Accessibility Act 2019, a published Polish-language accessibility statement, and an architecture that respects gov.pl's design system patterns. We coordinate with the relevant ministerstwo or public-sector IT team on every release cut.

Core Web Vitals discipline is non-negotiable on Polish web properties because Allegro.pl, Ceneo.pl, OLX.pl, and the major media properties have collectively trained Polish users (and Google Polska) to expect sub-2.5s LCP, sub-200ms INP, and sub-0.1 CLS. We default to Next.js 14+ with React Server Components, streaming SSR, and Partial Prerendering, Astro for content-heavy properties, and aggressive image optimisation through next/image with AVIF and WebP, EU-region CDN (Cloudflare or CloudFront with Warsaw and Krakow PoPs), HTTP/3, Brotli compression, and route-level prefetching tuned for Polish-language navigation patterns. We measure CrUX field data per Polish region, run Lighthouse CI on every pull request with Polish-carrier network throttling, and budget JavaScript main-thread time aggressively. Third-party scripts (tag managers, chat, A/B testing) are gated behind consent and lazy-loaded so the consented user gets a clean Core Web Vitals profile.

Web R&D that includes genuinely novel work (AI-driven personalisation, Polish-language NLP search ranking, novel headless commerce architectures, accessibility-first reference frameworks) typically qualifies for support from NCBR Szybka Sciezka, FENG (Fundusze Europejskie dla Nowoczesnej Gospodarki 2021-2027), KPO (Krajowy Plan Odbudowy) digital components, and PARP grants for Polish SMEs, with non-dilutive intensity often between 25 and 80 percent depending on company size and research category. Polish web projects also frequently combine NCBR funding with Horizon Europe, Digital Europe Programme, and EIC Accelerator instruments. We deliver time-tracked logs, technical narratives, experiment histories, and failed-hypothesis documentation aligned with NCBR audit requirements, and we coordinate with PAIH (Polish Investment and Trade Agency) when the client is building or scaling a Polish R&D hub with EU work rights. Final eligibility sits with your grant consultant and the funding body.