Available for senior full-stack & AI engineering roles
Alexander Lumenbuilding personal operating systems with AI.
Senior full-stack software engineer building AI-powered personal operating systems for finance, work, health, and life automation. Secure, scalable backend and full-stack systems with Java, Spring Boot, React, TypeScript, cloud platforms, and AI agents — connected through MCP and context memory so LLMs can understand and act across life.
Alex is a senior full-stack software engineer with 15+ years of experience building scalable backend systems and full-stack applications across healthcare, finance, e-commerce, and enterprise platforms.
He specializes in Java, Spring Boot, React, TypeScript, cloud architecture, API design, integrations, automation, and AI-assisted development.
His current personal work focuses on AI agents, MCP-connected tools, personal context memory, workflow automation, and practical software that helps people manage life more intelligently.
Currently focused on
Personal AI operating system architecture
MCP context memory across life domains
Voice-first and scheduled agent workflows
Practical, secure financial tooling
Featured Projects
A personal product lab.
Modular tools designed to connect into a single AI-powered personal operating system.
Active
MoneySprout
Personal Finance Intelligence
An AI-assisted personal finance dashboard inspired by Mint, Monarch, YNAB, and Empower. A full view of spending, accounts, budgets, cash flow, and actionable financial-health insights.
A personal career automation platform that turns the job search into a structured CRM — resumes, applications, recruiters, interviews, and follow-ups in one place.
A travel operating system that quietly organizes everything you booked, saved, and screenshotted — reservations, documents, plans, and a copilot that actually knows your trip.
A live personal operating system that brings together finance, work, health, and life planning in one unified dashboard. Built as a modular, AI-ready hub.
A social content publishing service that helps creators and teams schedule, compose, and distribute posts across platforms with AI-assisted copy and analytics.
A central context-memory system that connects personal modules through MCP, letting AI assistants understand and act across finance, work, health, and relationships.
A health-focused module for symptoms, medications, appointments, and notes — designed to organize personal health context and prepare better questions for doctor visits.
Symptom & medication notes
Appointment preparation
Personal health timeline
AI summaries
Integrated with ProjectMind
HealthTechAIPersonal DataTimeline
Planned
Relationship CRM
People & Conversation Memory
A personal relationship tool to remember important people, conversations, reminders, dates, and emotional context — with AI-assisted message drafting.
Personal CRM for people you care about
Conversation notes
Reminders and follow-ups
Relationship context memory
AI-assisted message drafting
Personal CRMAIMemoryReminders
Experiment
Agent Orchestration
Voice & Scheduled AI Agents
Experiments with voice-first and scheduled AI agents that handle email, calendar, reminders, job-search workflows, and local + cloud automations.
Voice-first assistant workflows
Scheduled tasks & reminders
Email / calendar automation
Local and cloud agent execution
Human-in-the-loop approvals
AI AgentsLangGraphVoiceWorkflow
LifeOS Vision
One context layer. Many specialized modules.
Each module owns its domain. A shared MCP-based context memory lets AI agents reason and act across life — without locking anything into a single monolithic app.
Enterprise systems across healthcare, finance, and e-commerce.
Alex has built and maintained production systems involving healthcare workflows, surgery scheduling, financial integrations, backend APIs, frontend dashboards, automation tools, and AI-assisted internal applications.
He's comfortable owning systems end-to-end — from architecture and API design to cloud deployment, observability, and the developer experience for the teams that use them.
Core strengths
Backend architecture
Full-stack product development
API design
Cloud systems
Enterprise integrations
AI-assisted engineering
Mentorship and ownership
Practical product thinking
Contact
Interested in AI products, backend systems, or practical automation?Let's connect.