Services — Product Rescue, AI Feature Squad, Lean Engineering Team | Fluvius
Fluvius Start the conversation →
Home Case studies About Contact Start the conversation →
Services

Three ways in.

Every engagement is the same underneath: a managed team of senior engineers, multiplied by AI infrastructure, working your roadmap for a monthly number. The entry point depends on your pressure.

01 Rescue ↓ 02 AI ↓ 03 Team ↓
01 — Product Rescue Team

A stalled build, made production-grade.

Legacy code nobody dares touch, a vendor who left mid-project, or an AI-generated prototype that demos well and falls over in production. We read the code ourselves, write the rescue plan, then make it work at scale — stable, tested, maintainable.

Rescue my build → Rescue cases →
A good fit if
‹›Your vibe-coded or outsourced build won't scale, or breaks under real users
‹›A vendor, freelancer or agency failed and the deadline didn't move
‹›A legacy system blocks every new feature you plan
PROOF  a 14-year Go backend rewritten to Node.js in 6 months — one senior engineer, AI-assisted, versus a typical two-year quote.
02 — AI Feature Squad

AI in your product — now, not someday.

Assistants, RAG over your data, document processing, recommendations, voice and avatars — designed and shipped by engineers who build AI systems in production: precise algorithms, efficient token use, secure integration with your existing database and stack.

Ship my AI feature → AI cases →
A good fit if
‹›The board wants AI on the roadmap and the internal team can't keep up
‹›You need AI search, support or recommendations in your store or SaaS
‹›Operations drown in manual document and data work
PROOF  ProfAlex — an AI video agent with voice and a 3D avatar; an n8n automation pipeline handling 300+ records a week, cutting manual entry ~80% in month one.
03 — Lean Product Engineering Team

A smaller team that ships the same roadmap.

Replace or augment an expensive internal team with a managed, AI-leveraged one — full-cycle across backend, frontend, mobile, DevOps, QA and UI/UX. One monthly number instead of salaries, recruiting and management overhead; scale quarterly as the roadmap moves.

Cut my engineering cost → Team cases →
A good fit if
‹›Engineering became too expensive or slow for the roadmap
‹›After layoffs — a smaller team, the same product to ship
‹›A funding round, enterprise deal or peak season you can't miss
PROOF  Hellowoofy — architected and led from zero to 25,000+ active users; a single build over $166K across web, mobile, AR and Alexa.
The engagement model

The same discipline on every package.

The one behind ten years of happy clients — since 2017, without a single unhappy departure.

ModelManaged team, one monthly number — no recruiting, no overhead
TeamSenior engineers only, multiplied by AI infrastructure
ProcessArchitecture-first · TDD · structured code review · CI/CD — since 2017
CommunicationDirect Slack access, weekly demos, Agile/Kanban — email-only welcome
StackReact · Next.js · TypeScript · Node.js · Python · PHP · React Native · Flutter · AWS · PostgreSQL · LLM & RAG · n8n
FAQ / fair questions
Do you work fixed-price?+

For a first engagement, yes — we often start with a phased onboarding: a smaller, fixed-scope project so you can evaluate the team before any long-term commitment. Ongoing delivery then runs on a monthly model, which removes the padding vendors add to fixed quotes for scope-change risk.

Is AI writing our code?+

Engineers are. We read and write JS/TS, Python, PHP and C++ ourselves and can debug by hand — AI is an industrial-grade tool we apply under architecture-first discipline, TDD and code review. Every project starts with a plan, not a prompt. That's also why we're the ones companies call to rescue vibe-coded builds.

Can you take over an existing codebase?+

That's the Rescue package's whole job. We audit first, put the findings and a plan in writing, then stabilize — tests, CI/CD, then features. We've taken over everything from 14-year legacy backends to fresh AI-generated prototypes.

Where is the team?+

Senior and European — led from Ireland by the founder-CEO, with engineers across Europe. We work EU business hours with full US-morning overlap. Fluvius is a US company (Fluvius USA Inc, California), shipping since 2017 for clients including governments and a UAE retail bank.

How fast can we start?+

Start the conversation — two minutes of questions, or plain email. You'll have a written plan and a monthly number before you commit to anything; a call happens only if you want one.

NEXT STEP
Not sure which way in? Describe the product — the written plan will pick it.
Get my written plan → See the work first
Fluvius

A senior software engineering team that uses AI as an industrial-grade tool — advanced Claude Code workflows in experienced hands. For e-commerce, ERP and SaaS companies.

Explore
Services Case studies About Contact
Company
Fluvius USA Inc — Sacramento, California Led from Ireland · senior team across Europe EU hours · US-morning overlap
Talk to us
Start the conversation →

Not sure what you need? Take the 60-second quiz — five questions; the answers become page one of your plan.

© 2026 Fluvius — Senior software engineering Privacy · Terms