P.S. - Software Development

Technical Focus

Skills for resilient integrations

From API integration to data quality: the focus is on production-ready, maintainable solutions.

Core Competencies

PHP MySQL Python Docker Git Linux Lobster Data

Integration Platforms (Lobster Data)

Designing and operating mapping, routing, and validation flows in integration platforms with focus on resilient process chains.

  • Bidirectional HTTP API profiles with mapping, routing, and validation logic.
  • Error separation by transport, validation, and process failures.
  • Stable operation under production load with structured incident triage.

System Integration

Building and stabilizing API connections between existing software and external platforms, including error handling and operational monitoring.

  • Decoupling source and target systems through transformation middleware.
  • Clean test/production path separation with explicit callback release logic.
  • Traceable handover models based on documented interface contracts.

Data Workflows

Structuring, validating, and mapping data for reliable transfer between source and target systems.

  • Pre-validation of required fields, types, and value boundaries.
  • Stable mapping contracts for heterogeneous source payloads.
  • Predictable serialization of complex structures for API exchange.

Automation

Script- and container-based automation of recurring tasks to reduce manual effort and improve consistency.

  • Incremental automation of recurring operations without big-bang risk.
  • Reversible rollout steps with explicit fallback paths.
  • Continuous refinement from real operational feedback loops.

Continuous Improvement in Existing Systems

Maintaining and extending existing applications with strong focus on traceability, operational stability, and clean interfaces.

  • Small, reviewable change increments with rollback capability.
  • Stabilizing critical process paths before functional expansion.
  • Transparent documentation of architecture and operations decisions.

Infrastructure & Self-Hosting

Operating and managing containerized services on self-hosted infrastructure, from reverse proxy and SSL termination to automated backups.

  • Container runtime patterns with reproducible deployment behavior.
  • Baseline hardening with TLS, reverse proxy, and controlled access paths.
  • Maintainable operation routines including backup and monitoring.

Database Engineering

Designing and optimizing database structures, stored procedures, and queries for high-performance, maintainable backends.

  • Schema evolution for robust integration and reporting workflows.
  • Query optimization for stable day-to-day runtime behavior.
  • Versioned database changes with controlled rollback strategy.

Device Management

Designing and implementing centralized management solutions for heterogeneous device environments using open standards and modern MDM protocols.

  • Structured rollout and policy models for mixed device fleets.
  • Central governance of security and configuration profiles.
  • Documented operational handovers between technical and business teams.

Legacy Modernization

Analyzing and evolving long-grown systems step by step, without operational interruption and with clear focus on structure and future readiness.

  • Refactoring critical paths without interrupting core operations.
  • Decoupling legacy interfaces through explicit integration boundaries.
  • Prioritizing modernization by risk, leverage, and maintainability.

Frontend Development

Building reactive user interfaces with modern JavaScript frameworks, from lean components to full web applications.

  • Responsive page structures focused on readability and consistency.
  • Semantic component composition for long-term maintainability.
  • Iteration based on real UX and accessibility feedback.

Backend Frameworks

Developing structured applications with modern PHP frameworks, from the data layer and business logic to API exposure.

  • Service-layer structuring for stable, explicit business logic.
  • API endpoints with clear validation and error-handling patterns.
  • Incremental backend evolution instead of disruptive rewrites.

In Development

SAP-Adjacent Integration Patterns

Structured ERP interface patterns with explicit field semantics, clear validation paths, and controlled process coupling.

Laravel / Livewire

Focused deepening of modern PHP framework patterns for maintainable backend structures and production-grade internal tooling.

New technologies are built methodically: documented self-implementation, controlled production usage, and traceable capability growth without inflated claims.