Debug LabsGet in touch

Backend · DevOps · Data · AI — Osijek, Croatia

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

Custom MCP servers for ChatGPT & Claude · Magento 1 → OpenMage rescue · 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

Where we’re investing

AI integrations & Magento 1 rescue

AI · MCP

Custom MCP servers for ChatGPT, Claude & co.

We’re working heavily in AI. We build custom Model Context Protocol (MCP) servers that securely connect ChatGPT, Claude and other AI assistants to your own systems — databases, ERP, webshop, internal docs — so your team gets answers and gets work done inside the AI tools they already use every day.

  • Ask your business data in plain language — orders, stock, customers, reports
  • Secure by design: read-only by default, least-privilege access, authenticated endpoints, audit logs
  • Self-hosted on your infrastructure or ours — no third-party middleware
  • Team rollout with setup guides, so the productivity boost shows up from day one
MCPChatGPTClaudePostgres / MySQLOAuth
Security rescue

Magento 1 rescue → OpenMage

Still running Magento 1? It’s been end-of-life since 2020 and is usually stuck on an outdated PHP full of known vulnerabilities. We rescue M1 stores by migrating them to OpenMage LTS — the community-maintained Magento 1 — on a current, supported PHP version with no known open CVEs.

  • Security audit, cleanup & patching of exposed or compromised stores
  • Upgrade to OpenMage LTS on PHP 8.x, with core & extension compatibility fixes
  • Same admin, same data, same extensions — no costly full replatform
  • Hardening & monitoring, with a clear path to Magento 2 later if you want it
Magento 1OpenMage LTSPHP 8.xCVE patching
Magento Critical Upgrade — 12 hours for the price of 10 →
Open source · Free

Luceed MCP — your Luceed ERP inside ChatGPT & Claude

Our open-source MCP server connects Claude, ChatGPT, Cursor or any MCP client to Tomsoft Luceed ERP, so you can ask things like “What were last week’s retail sales by store?” and get answers straight from your ERP. It’s read-only by design: 39 resources and 149 read actions covering items, stock, prices, partners, orders and invoices, with no write access.

Free to use under the MIT license. Want it deployed and connected securely for your team? We handle hosting, OAuth, access to IP-restricted Luceed instances and the rollout.

Luceed ERPMCPChatGPTClaudeRead-onlyMIT
Get it implemented View on Glama Source on GitHub

Independent project, not affiliated with Tomsoft. Luceed® is a product of Tomsoft d.o.o.

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 / MessagingPythonNodeJS

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 8.3

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 → 8.3; AI augmentation; package tracking (GLS, BoxNow); cloud replatform to Hetzner; 30-min delivery (Glovo/Wolt).

MagentoLuceedAlgoliaPHP 8.3AI

Lovebox.hr — Magento 1 → OpenMage Rescue

Replatform from end-of-life Magento 1 to OpenMage LTS; PHP upgrade to 8.3; refactoring of old modules; bug fixes; web performance optimization and DDoS mitigation.

OpenMagePHP 8.3PerformanceDDoS mitigation

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 engineering

M1→OpenMageM1→M2ERP/Payments/ShippingPerf
  • Magento 1 security rescue — OpenMage LTS on a supported PHP version
  • 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

MCP serversChatGPT / ClaudeLLM agentsWhatsApp / Telegram
  • Custom MCP servers securely connecting ChatGPT, Claude & other assistants to your data
  • 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

EU B2B invoices available. VAT charged per EU rules; reverse charge where applicable. Need a fixed quote for your project? Mention “Pricing details” in the contact form.

Prepaid packages — 12 hours for the price of 10

Critical service

Magento Critical Upgrade

Outdated Magento, unpatched CVEs, PHP past end-of-life? Get a fixed block of senior hours to upgrade and secure your store.

€80012 hours of work — you pay for 10
  • Magento 1 → OpenMage LTS, or Magento 2 version & security-patch upgrade
  • PHP upgrade to a supported version, extension & theme compatibility fixes
  • Quick estimate included as soon as we get access — you know up front whether 12 hours covers it

Hours beyond the 12 aren’t included in the package; they’re billed at the standard rate, and only after you approve the estimate.

Book an upgrade

Monthly Retainer

Ongoing improvements, maintenance & production support — prepaid monthly, with 20% extra hours on every plan.

from €800/mopay 10 hours, get 12 — every month
  • Small — pay 10h12h / month
  • Medium — pay 20h24h / month
  • Large — pay 40h48h / month

Hours billed at the hourly rates below for the type of work. Agreed response times & monthly reporting; roll-over by agreement.

Start a retainer

Engagement models

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
Pricing: fixed quote
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
Pricing: fixed quote per sprint
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
Pricing: 12h for every 10h prepaid
Request quote

Emergency / Rescue

Incident response, failed migrations, outages.

  • Stabilize → root-cause → prevent
  • Senior engineer escalation
  • Short-term hardening
Pricing: hourly + out-of-hours multiplier
Request help

Rates & support hours

Hourly rates

Effective from 1 November 2025.

  • Web development€80/h
  • Server maintenance (incl. DevOps)€120/h
  • Technical documentation & analysis€100/h
  • Consultations€80/h
  • Network & infrastructure€80/h
  • Graphic design€60/h
  • QA€50/h
  • Data processing & entry€50/h

Support hours

Hourly rates apply within standard hours.

  • Standard support hours9–15h
  • Requested support outside working hours×2
  • Emergency support on weekends & holidays×4

Priority hours

Drop-everything mode: we stop other work and start on your issue right now.

  • Priority hours — urgent, immediate start×8
Request priority help

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

  • Custom MCP servers that put your business data safely inside ChatGPT & Claude.
  • Rescuing Magento 1 stores — OpenMage LTS on modern, CVE-free PHP.
  • 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

Takes 1–2 minutes. No login required.

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

Second office

Josipa Jurja Strossmayera 11
31500 Našice, Croatia