Senior engineering — software, infrastructure, AI
Koszek Systems designs and delivers software solutions from application to infrastructure — 25 years of engineering depth, AI-augmented workflows, and a single senior engineer who handles every layer of the stack.
What we do
We are technology-agnostic. Proven solutions stay in service — we do not replace what works in the name of novelty. We pick the right tool for each problem and work fluently across the full stack, from first line of code to production uptime.
Web applications, APIs, and data pipelines — languages chosen for the problem, not the trend. We have shipped production code across PHP, Python, Go, Rust, and more. Modern practices: version control, automated testing, documented architecture.
We apply AI tooling throughout the development lifecycle — design, implementation, testing, and operations — to compress timelines and surface problems earlier. Faster time-to-value and higher output quality, without inflated headcount or ballooning scope.
All infrastructure defined as code and version-controlled. Every environment is reproducible from scratch in minutes. Changes are documented, reviewed, and reversible — no undocumented manual state, ever.
Application and database hosting on US-based cloud infrastructure. Any application stack. Daily backups, encrypted and verified. Servers that run quietly, with monitoring and automatic recovery built in as standard.
HIPAA-aligned infrastructure, NIST 800-53 controls, IDS/IPS deployment, quarterly vulnerability scanning, and full audit logging. Built for environments where compliance is a requirement, not a checkbox.
MySQL, MariaDB, and PostgreSQL at production scale. Query optimization, primary/replica replication, slow query analysis, and buffer pool tuning for workloads handling hundreds of millions of records.
Client Results
Every engagement below was handled directly — the same engineer designed it, built it, and kept it running. No subcontractors, no support tiers, no handoffs.
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About
Koszek Systems is a specialized engineering firm founded by Adam Koszek, an engineer and founder with over 25 years of experience building and operating software systems across healthcare, cybersecurity, and public-sector deployments.
Every engagement is handled directly by Adam — the same engineer who designs the architecture, writes the code, provisions the infrastructure, and handles support. There are no account managers, no junior staff hand-offs, no support tiers. When you contact us, you reach the person who built the system.
Adam has served as founder, engineer, and advisor to organizations handling mission-critical systems — including a healthcare platform processing clinical records across six states and eleven hospital facilities, and advisory roles in food security and cybersecurity.
We believe great engineering is invisible. The best systems are the ones you forget about.
Contact
Whether you need managed hosting, a new application, a migration, a compliance review, or a second opinion on your current setup — we're happy to start with a conversation.