mentality.cz
Lukas Janda
I build and ship production software — fast. A senior full-stack engineer with an AI-accelerated workflow that compresses typical delivery timelines from weeks to days.
What I do
- MVP builds Fixed scope, fixed price — working software in days.
- AI integration Bringing LLMs and automation into real products.
- Integration-heavy work Connecting the tools a business already runs on.
- Fractional tech lead Senior guidance, part-time.
Selected work · products & apps
- Offline-first field appMobile app for technicians working on-site without reliable connectivity — offline capture, live video assistance, map-based job routing; auto-syncs when back online.
- Shared component libraryA reusable, offline-capable data-capture UI embedded across several products, with an event queue that survives disconnects.
- Serverless AI document pipelineInbound documents and invoices: OCR extraction → LLM classification → validation against reference data → automated reports, as serverless steps.
- Image detection & segmentationLocating, classifying, and segmenting objects, regions, and text in photos — fast on-device models with a vision-LLM fallback for uncertain cases, returning structured results from raw images.
- Document & PDF generationTemplated, structured data → branded PDFs and reports: multi-page layouts, images, tables, and dynamic sections.
- Operations admin dashboardA central back-office for managing users, roles, locations, content, and third-party integrations.
- Automated lead-discovery systemA daily serverless job scanning multiple sources, LLM-scoring each opportunity for fit, delivering a ranked digest.
Selected work · automation & tooling
- System integrationsScheduled serverless jobs moving and transforming data between internal APIs and third-party platforms — forwarding, format conversion, dedup, retry + tracking.
- Automated data processingValidate, transform, and import multi-format data (CSV / XML / XLSX) at scale, with field mapping and quality rules.
- Automated reportingJobs aggregating data across multiple APIs and databases into scheduled Excel reports.
- Geocoding & enrichmentBulk reverse-geocoding and address resolution with retries and logging.
- Legacy API gatewaysLightweight services bridging legacy SOAP APIs to modern REST + JWT, with documentation.
- Environment data syncKeeping staging in sync with production, including automated translation fixes.
- Containerized deploymentApplication deployment via Docker / Helm with CI/CD.
How I work
- Remote, async-first · EU & US timezone friendly · English
- 10–20 hrs / week alongside a senior full-time role
- Direct, low-overhead — you talk to the person doing the work