Eltherion

PRACTICE

Services.

One accountable senior team across the work that decides whether ambitious software ships: AI systems, durable platforms, and the architecture underneath them.

AI Agent Development

We build production AI agents that operate reliably inside real business processes — with evaluation, guardrails, and observability that hold up after launch.

Explore

RAG Development

We build production retrieval-augmented generation systems that answer from your data, cite their sources, and hold up under real load.

Explore

Technical Due Diligence

Independent technical due diligence that tells you what you're actually buying — codebase, architecture, security, team, and whether the roadmap is fundable.

Explore

Custom Software Development

Strategy to shipped product — web apps, mobile apps, and SaaS platforms built by one senior team that owns the outcome.

Explore

Platform Engineering

We build cloud platforms, data layers, and integrations to the reliability standard your most critical systems demand — so growth stops breaking things.

Explore

Software Architecture & Strategy

Fractional-CTO-level judgment to review your architecture, modernize brittle legacy systems, and plan delivery for high-stakes programs — without the full-time hire.

Explore

SaaS Development

We build multi-tenant B2B SaaS platforms — billing, auth, admin, and analytics included — so your MVP is a product you can sell and scale, not a demo you rebuild.

Explore

Mobile App Development

We build iOS and Android apps — native or React Native, chosen on the merits — plus the backend and platform work that decides whether the app survives launch.

Explore

Legacy Modernization

We rescue and rebuild the legacy systems your business depends on — stabilized first, then modernized incrementally so the business never has to stop.

Explore