Software Development

Go & Python backends · React frontends · Kubernetes & CI/CD · AI integrations.
Remote contractor — full-cycle delivery from MVP to production.

Explore Solutions Get in Touch
  • Go & Python
  • Kubernetes & CI/CD
  • AI Integration
  • React

What I Deliver

Backend Development

Go and Python backends, REST/GraphQL APIs, database design, migrations, and performance tuning.

  • Go • Python • PostgreSQL
  • REST • GraphQL • OpenAPI
  • Docker • CI/CD • Testing

AI & Automation

Integrate OpenAI/GPT into your product: chatbots, document processing, content generation, and workflow automation.

  • OpenAI API • GPT • Embeddings
  • Document Parsing • RAG
  • Python • Go • React UI

Kubernetes & DevOps

Container orchestration, CI/CD pipelines, infrastructure-as-code, and monitoring dashboards.

  • Kubernetes • Helm • Terraform
  • GitHub Actions • GitLab CI
  • Prometheus • Grafana

Full-Stack MVPs

Next.js or React frontends paired with Go/Python backends. From first commit to launch.

  • Next.js • React • TypeScript
  • Stripe • Auth • Supabase
  • Deployment • Docs • Handover

Engagement Models

Fixed-scope projects or monthly retainers. Remote, async-friendly, full IP transfer.

Backend & API Development

Go · Python · PostgreSQL

  • Scope: New services, legacy migrations, API design, performance fixes
  • Stack: Go, Python, PostgreSQL, Docker, CI/CD
  • Deliverables: Production code, OpenAPI docs, deployment scripts
  • Timeline: 2–6 months

Remote · Code ownership · Documentation

AI & GPT Integration

OpenAI · Chatbots · Document Processing

  • Scope: Add AI features to your product — chat, content gen, doc analysis
  • Stack: Python/Go, OpenAI API, React UI
  • Deliverables: Working feature, API endpoints, prompt configs
  • Timeline: 1–4 months

Remote · Cost controls · Production-ready

DevOps & Cloud Setup

Kubernetes · CI/CD · Terraform

  • Scope: Container orchestration, pipelines, infra-as-code, monitoring
  • Stack: Kubernetes, Helm, Terraform, GitHub Actions, Prometheus
  • Deliverables: Deployment configs, runbooks, dashboards
  • Timeline: 1–3 months

Remote · Reproducible · Handover docs

How it works: Kick-off call → scope document → weekly demos → final handover. You own all code and IP.

How I Work

  1. Discover: Deep dive into your needs and technical landscape to define the right solution.
  2. Architect: Design robust, scalable systems with clear technical specifications.
  3. Build: Iterative development with regular demos and feedback cycles.
  4. Enable: Comprehensive documentation, training, and smooth handover.

Track Record

10+ years shipping backends, cloud infra, and AI features.

Previous Clients & Collaborations

  • Direktiv.io
  • Telekom Innovation Lab
  • University of Bremen

View case studies →

Common Questions

What do you actually build?

Backends (Go, Python), React frontends, CI/CD pipelines, Kubernetes deployments, and AI integrations. Full-cycle: I can take a feature from design to production.

Who owns the code?

You do. All source code and IP transfer to you on delivery.

How do you handle security?

Secure defaults: environment-based secrets, least-privilege access, dependency scanning, and code review before merge.

What's your availability?

Typically 80–100% capacity for 2–6 month engagements. Shorter sprints or advisory retainers also available.

Get In Touch

Let's discuss your project

Whether you're building a new backend system, integrating AI capabilities, or optimizing your infrastructure, I'd love to help.

alexander@contenox.com

Hamburg, Germany