SaaS Development Company in Warsaw

Each piece of Polish tax and privacy plumbing steps the budget up: a scoped MVP at Warsaw rates, a production multi-tenant SaaS with SAML, SCIM, audit logs, role-based access control, BLIK, Stripe, Polish VAT and JPK_VAT export, and a UODO-aligned privacy stack, or full enterprise-grade SaaS with multi-region active-active deployments, DORA register of information, KNF outsourcing notifications, and EU AI Act Annex IV technical files. 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. Allegro exposes one of the deepest marketplace APIs in Central Europe (REST, OAuth2, webhooks for listings, orders, returns, Allegro Pay, Smart, and fulfilment). We ship Allegro-integrated seller SaaS (repricing engines, listing managers, order orchestration, returns automation) that authenticate via Allegro Open APIs, respect Allegro's rate-limit and fairness rules, and provide multi-account aggregation for Polish power sellers. For service-marketplace SaaS we have patterned designs after Booksy's publicly described architecture (calendar abstraction, multi-resource bookings, payments tied to staff payouts, no-show fees, marketplace search relevance) so Polish founders building service marketplaces inherit the Booksy template rather than reinventing it. We also integrate Ceneo, OLX, Empik, and Modivo APIs where the SaaS spans the Polish marketplace landscape.

The EU Digital Operational Resilience Act (Regulation 2022/2554) applies from 17 January 2025 to financial entities (banks, payment institutions, insurers, asset managers) and to their critical ICT third-party providers. If any of your tenants is a Polish bank, payment institution, e-money institution, insurer such as PZU, or KNF-supervised investment firm, your SaaS sits inside DORA scope. Codazz delivers DORA-ready engagements with a register of information for ICT services, contractual clauses aligned with the DORA Implementing Technical Standards, threat-led penetration testing readiness (TLPT under Article 26), an ICT incident classification taxonomy aligned with the EBA reporting templates, and concentration-risk documentation for hyperscaler dependencies. KNF and BFG additionally expect Recommendation D and resolution-readiness documentation in Polish for any SaaS providing critical functions to a Polish bank.

Every Codazz Warsaw SaaS engagement opens with a GDPR Article 30 record of processing activities, an Article 35 DPIA where the SaaS processes special-category data or operates large-scale profiling, and a UODO-aligned tenancy model that lets each tenant be its own controller while Codazz and the SaaS operator remain processors. We document the lawful basis under Article 6 (and Article 9 for health categories in DocPlanner-style SaaS), implement Article 22 automated-decision safeguards for any AI scoring, and build deletion and rectification flows that respect Articles 17 and 16 with tenant-isolated execution. Training data, vector stores, audit logs, and backups stay in EU regions. Cross-border transfers outside the EEA require Standard Contractual Clauses and a transfer impact assessment under Schrems II, which we document in the data processing agreement and surface to tenant procurement teams in Polish.

Regulation (EU) 2024/1689 (the EU AI Act) classifies AI systems as prohibited, high-risk, limited-risk, or minimal-risk, and most SaaS AI features land in limited-risk (transparency obligations on chatbots and synthetic content) or high-risk (credit scoring, employment, education, biometrics, critical infrastructure, Annex III categories). For high-risk features Codazz produces an Annex IV technical file, a quality management system aligned with ISO/IEC 42001, post-market monitoring telemetry, instructions for use, and EU database registration. For limited-risk features we ship the required transparency disclosures and synthetic-content labelling. The general-purpose AI obligations under Articles 51 to 56 apply from 2 August 2025 to model providers, not to SaaS operators using third-party models, but we still produce the upstream-model documentation chain so tenants can answer their own conformity questions.

Yes. KNF-supervised tenants (PKO BP, Pekao, mBank, ING Bank Slaski, Santander Bank Polska, Alior, plus payment institutions, insurers including PZU, and investment firms) require KNF Recommendation D model and IT risk discipline, a documented outsourcing notification, BFG resolution-readiness considerations, DORA contractual clauses, EBA outsourcing guideline mapping, and a Polish-language audit and inspection right. Codazz delivers all of these in-pipeline. Our reference deployment runs in AWS eu-central-1 with the Warsaw Local Zone for low-latency consumer flows, Azure Poland Central where the bank is Microsoft-aligned, and an active-passive secondary region inside the EU for disaster recovery. We coordinate with the bank's Chief Information Security Officer, internal audit, and KNF liaison on every release cut.

Polish SaaS billing has to handle Polish VAT at 23 percent standard rate (with reduced 8 percent and 5 percent rates for specific categories), JPK_VAT and JPK_FA monthly e-filing to the Ministerstwo Finansow, KSeF (Krajowy System e-Faktur) for the structured e-invoice rollout, white-list VAT payer verification against the Biala Lista, and split-payment (MPP) where applicable. We integrate Stripe Tax for cross-border VAT, generate Polish-compliant invoices in PDF and KSeF XML, post journal entries to iFirma, Comarch ERP XL, Symfonia, SAP Concur, and Microsoft Dynamics 365 Business Central where the tenant uses them, and align the invoice numbering and chronology with Polish requirements. For B2C SaaS we additionally handle the Polish consumer-rights regime (Ustawa o prawach konsumenta) and 14-day withdrawal where applicable.

Most custom SaaS research and experimental development qualifies for support from NCBR (Narodowe Centrum Badan i Rozwoju) programmes such as Szybka Sciezka, FENG (Fundusze Europejskie dla Nowoczesnej Gospodarki 2021-2027), the Krajowy Plan Odbudowy (KPO) 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 SaaS projects 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.