AI & machine learning
We build LLM features, agents, and evaluations (evals) that use your data and workflows.
LLM integration Custom agents Agentic workflows
AI & software engineering
We buildproduction AI systems.
Our engineers design, build, and operate LLM features, agents, data pipelines, and cloud systems your team can maintain.
100+
Projects delivered
15
Years of experience
20
Engineers & architects
What we build
Senior engineers build AI, cloud, security, and software systems from architecture through production.
Application development
We build web and mobile products with the front ends and APIs your users need.
Full-stack Mobile Real-time
Cloud architecture
We design cloud systems on AWS, Azure, and GCP using infrastructure as code (IaC), with deployment paths and cost controls.
IaC Kubernetes Serverless
Platform modernization
We modernize legacy systems with APIs and services your team can change without a rewrite.
Replatforming API strategy Microservices
Security & compliance
We review architecture, close compliance gaps, and prepare GDPR, HIPAA, and zero-trust programs.
Audits Zero trust Pen testing
Technical leadership
We provide fractional CTO support, add senior engineers to your team, and evaluate technical bets.
Fractional CTO Team augmentation Due diligence
Track record
Our engineers have shipped systems as members of teams at Samsung, Microsoft, Verizon, T-Mobile, Toyota, Amazon, Walmart, and Fujifilm.
Where teams bring us in
Clients bring us in when they need to move AI or platform work from prototype to production, or when they need senior engineers to own an existing system.
Production AI
LLM features with evals and guardrails
We build LLM product features, retrieval, evals, guardrails, and observability around production workflows.
LLM features Retrieval Evals Observability
Platform rebuilds
Legacy systems your team can change
We replace fragile parts of your system with APIs, services, data pipelines, and cloud infrastructure while the business keeps running.
APIs Services Data pipelines Cloud infrastructure
Technical rescue
A path through stalled delivery
We join teams facing missed deadlines, fragile architecture, or unclear ownership, then create a delivery plan engineers can execute.
Architecture review Delivery plan Team support Release path
Senior delivery
Senior engineers who own the work
We review architecture, plan releases, write production code, and stay close to operations.
Technical strategy Buildout Code review Operations
How we work
A small senior team, accountable from initial scoping to production.
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Scope
We pressure-test the idea against today's model limits, then identify the constraints and agree on completion criteria. We start coding once the team agrees on scope.
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Architect
We design for production requirements, including evals, fallbacks, cost, and latency.
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Build
Senior engineers build in your stack, alongside your team, and ship to production in short iterations, with progress you can review each week.
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Operate
We harden the system, write the evals and docs your team will use, and transfer ownership to your team. After that, we stay on call.
Why partner with Lusona LLC?
Engineers and architects founded Lusona LLC after building production systems for Fortune 500 companies and high-growth startups. We bring that experience to architecture reviews, buildouts, handoffs, and production support.
We stay close to the code. Senior engineers design the system, implement the critical code paths, review the work, and equip your team with the docs, evals, and runbooks it needs to own the system.
01
Production discipline
We write the tests, evals, docs, and runbooks production systems need.
02
Right tool, not the trend
We choose models, frameworks, and cloud services for the constraint in front of us.
03
Senior ownership
Senior engineers design, build, review, and ship with your team.
04
Clear handoff
Your team takes ownership of the code, documentation, and operating procedures.
Global reach
Our distributed engineers work with teams across North America, Europe, and Asia-Pacific.
SFO
Headquarters
EVN
Europe
TYO
Asia-Pacific
Tell us what
you're building
Share your goals for a new product, migration, or AI initiative. We’ll reply with next steps.