Debug LabsGet in touch

Backend · DevOps · Data — Osijek, Croatia

We build, ship and run the systems behind commerce & data platforms

Magento 2 · PHP · Node/NestJS · Kubernetes · CI/CD · Cloud cost optimization. Croatia-based, serving EU & USA clients.

Get in touch See our work
15+years in production
€3.3M+EU R&D projects delivered
$80k/moAWS savings for a single client
1 daytypical reply time

Case studies

Selected Projects

PropTech Platform (undisclosed) — Multi-Region SRE

Cloud-native real-estate search system across AWS & GCP. Kubernetes (staging + prod, HPA), AWS ↔ GCP migrations, Grafana/Sentry observability, incident response, WhatsApp Cloud API & Telegram messaging pipelines, LLM agent-based automation.

AWS + GCPKubernetesSREAI / Messaging

Xiaomi Webshop Migration

nopCommerce → Magento 2 incl. customers, accounts & stores. Dual-way Jupiter ERP sync, payments (KeksPay, Corvus, AirCash, crypto, PayPal), delivery (BoxNow, Wolt, DPD), social login, B2B/wholesale, OWASP/CSP hardening. Cloud move cut server costs ~3.75×.

Magento 2ERPCI/CDPHP

Datalytica Analytics

Custom BI platform serving insights to brands like IKEA, Mazda, Shein & RMG. Airbyte ingestion + custom DV360/Google Ads connectors, Airflow ETL to Redshift, Cube.js dashboards, Media Planning Tool; sole DevOps on multi-cluster K8s.

NestJSRedshiftAirflowCube.jsPython

Parilica.hr Replatform

Croatia's largest vape retailer (6+ stores). M1 → M2 with dual-way Luceed ERP; loyalty program spanning online & in-store; Algolia search; PHP 7.1 → 8.2; cloud replatform to Hetzner; 30-min delivery (Glovo/Wolt).

MagentoLuceedAlgoliaPHP

Innerwell — HIPAA Data Platform

HIPAA-compliant Redshift DW; ETL from medical software, NMI payments, Customer.io, Magento 2; SageMaker mood-forecasting model; dbt snapshot/clean layers; Metabase → Looker BI.

HealthcareRedshiftSageMakerdbt

Coolinarika / Podravka / RTL Suite

GitLab CI/CD across 7+ sites (rtl.hr, net.hr, coolinarika.com…), Azure AKS, security hardening, Node 12 → 20 across a 12-app monorepo; Redis-backed Next.js caching cut hosting costs 30%+.

CI/CDAzure K8sRedisNodeJS

FutureVault — AWS Cost Optimization

Award-winning WealthTech document platform (172k+ vaults, 11M documents). Reduced AWS from ~$100k to <$20k/month; K8s upgrades, Pinpoint → Twilio, security uplift.

AWSKubernetesCost

Co.Create — Video Streaming Optimization

Serverless media pipeline: AWS Lambda + Elemental MediaConvert generating adaptive-bitrate HLS from uploads; S3 + CloudFront delivery; cut CDN bandwidth for mobile video at scale.

AWS LambdaHLS / ABRCloudFrontPython

Osječka Pivovara — IT Infrastructure

Brewery-wide modernization: Sophos firewall, VPN redesign, 400GB email migration to cloud, ISP & server vendor negotiation, Jupiter ERP enhancements and custom production reporting.

NetworkingSecurityERPConsulting

Fusion Food — AI Culinary App

AI-driven recipe platform (10,000+ recipes, 560 cuisines): OpenAI & StabilityAI integrations, Elasticsearch + Algolia search, Flask backend, Dockerized CI/CD delivery.

OpenAIElasticsearchPythonDocker

GaussBox — Multi-tenant SaaS

CMS & eCommerce APIs, licensing/provisioning; microservices & custom integrations; data residency (CH/EU); GCP + Cloudflare; multi-DB architecture.

SaaSMicroservicesGCPNodeJS

ESIA — Smart-Agri (EU R&D)

IoT/AI expert system; GCP serverless; CI/CD; €1.1M+ project with field data pipelines.

GCPServerlessIoTNodeJS

WaterQ — Digital Water Quality

R&D platform + mobile app + IoT sensor device for potable-water monitoring and risk assessment; EU-funded (~€2.2M).

IoTFlutterREST APINodeJS

ReportGorilla — Automated Survey Reporting

Instant reports & presentations from SurveyMonkey, Typeform, Responsly data, custom sources; proactive previews, built-in templates; export to web, Word, PowerPoint, Excel.

SurveysAutomationReportingPHP

Trusted by

Clients

What we do

Services

Magento 2 engineering

M1→M2ERP/Payments/ShippingPerf
  • Migrations & replatforms, custom modules, checkout fixes
  • ERP, payment & delivery integrations (Luceed, Jupiter, Wolt/Glovo, BoxNow, DPD, etc.)
  • Performance audits, caching/CDN, SEO & security hardening

Backend & APIs

PHPNode/NestJSMicroservices
  • Domain-driven services, auth, multi-tenant architecture
  • eCommerce & CMS APIs, reporting, custom integrations
  • Code uplifts (e.g., Node 12→20), testing & quality gates

DevOps & Cloud

KubernetesCI/CDCost
  • Docker & Kubernetes on AWS/GCP/Azure/Hetzner, GitLab/Bitbucket CI/CD, IaC
  • Dockerization of legacy apps, multi-stage builds, registry & image hygiene
  • Observability (logs/metrics/traces), SRE practices & SLIs
  • Cloud cost optimization, security hardening & compliance

Data & Analytics

AirflowdbtRedshift/Snowflake
  • ETL/ELT pipelines (Airflow, Airbyte), warehouse modeling (dbt)
  • Dashboards (Cube.js, Looker), event analytics (PostHog)
  • Consent-aware tracking, reporting & performance tuning

AI, Messaging & Automation

WhatsApp / TelegramLLM agentsOpenAI
  • WhatsApp Cloud API & Telegram integrations, webhook messaging systems
  • LLM/agent-based automation: routing, fallbacks, session management
  • Resilient pipelines — dedup, retries, queues, real-time ingestion

IT Infrastructure & Consulting

NetworkingSecurityERP
  • Firewalls, VPN design, email & server migrations to cloud
  • ERP support & integrations, custom reporting, mobile-app coordination
  • Vendor & ISP negotiation, RFP help, on-prem vs cloud assessments

How we can engage

Audit & Action Plan

  • Architecture, performance & security review
  • Written report, risk register & prioritized roadmap
  • Quick-wins implemented where feasible

Delivery Sprints

  • 2–4 week outcomes (features, migrations, reliability work)
  • Fixed scope, demo & handover each sprint

Support Retainers

  • Ongoing improvements & production support
  • Agreed response times, optional on-call, pooled hours

Emergency / Rescue

  • Incident response, hotfixes, failed migrations
  • Stabilize → root-cause → prevent recurrences

Not sure where to start? Tell us about your project and we’ll suggest the fastest path — audit, sprint, or retainer.

Engagements

Pricing

Audit & Action Plan

Time-boxed technical & business audit with a prioritized roadmap.

  • Architecture, performance & security review
  • Cloud cost model & quick-wins
  • Written report + handover call
Typical budget: on request
Request quote
Most popular

Delivery Sprint

2–4 week outcome: features, migrations, or reliability work.

  • Fixed scope, demo, documentation
  • CI/CD included where relevant
  • Clear acceptance criteria
Typical budget: on request
Request quote

Support Retainer

Ongoing improvements & production support (S / M / L).

  • Agreed response times & monthly reporting
  • Optional on-call; pooled hours
  • Roll-over by agreement
Typical budget: on request
Request quote

Emergency / Rescue

Incident response, failed migrations, outages.

  • Stabilize → root-cause → prevent
  • Senior engineer escalation
  • Short-term hardening
Typical budget: on request
Request help

EU B2B invoices available. VAT charged per EU rules; reverse charge where applicable. Want exact numbers? Mention “Pricing details” in the contact form.

Who we are

About

Debug Labs is a backend and DevOps company with a client-first mindset: your success drives ours. We lead technical delivery, keep infra sane, and make things fast — while keeping costs predictable.

How we work

  • Assess first, build second. Every engagement starts with planning: we map the current state, give honest estimates and lay out the possible routes — with trade-offs, not sales pitches.
  • Decide together. We separate what you want from what you actually need, and agree on the path before a single line is written. No surprise scope, no surprise invoices.
  • Own delivery end-to-end — collaborate tightly with your team, evidence-first decisions, short feedback loops, clear SLAs.
  • Client-first, always. Fair treatment and your long-term success beat a quick win — happy clients come back, and most of ours do.
  • Secure by default, observability from day one, “no drama” comms.

What we’re known for

  • Magento 2 replatforms and ERP integrations; fast checkout & bug fixes.
  • Clean, well-tested APIs; pragmatic Kubernetes and GitLab CI/CD that “just works”.
  • Analytics & ETL with Airflow, dbt, Redshift/Postgres, Cube.js & PostHog.
  • Messaging & AI automation — WhatsApp/Telegram pipelines, LLM agent systems.
  • Cloud cost optimization without drama ($100k → <$20k/mo on one engagement).

Advisory & Consulting

  • Business consulting: product/ops audits, vendor & RFP help, process design, KPI frameworks.
  • Financial consulting: cloud cost models, unit economics, pricing & ROI forecasts, budget guardrails.
  • On-prem & office IT: firewalls, VPNs, email migrations, ERP support, ISP/vendor negotiation.

Truck rental (local logistics)

  • Light commercial truck/van for equipment moves and palletized cargo.
  • Driver included, invoicing provided, insured cargo.
  • Osijek & nearby cities; evenings/weekends on request.

Based in Osijek, Croatia. Serving EU & US clients across commerce, data, and SaaS. Need the truck? Mention “Truck rental” in the contact form.

Let’s talk

Contact

Tell us about your project

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Prefer email?

rh.sbal-gubed@ofni

We typically reply within one business day.

Company

Debug Labs d.o.o.
Sjenjak 48, 31000 Osijek, Croatia
OIB: HR21483612968