Adapt or Upgrade · Assisted Engineering

Modernize legacy systems — AI accelerates audits, humans own the risk plan

Fragile architecture, undocumented behavior, outdated dependencies. Agents help map and refactor; engineers decide what to stabilize, migrate, or leave alone — without a reckless full rewrite.

100%Human risk gates
<24hrsResponse time
Dares Salaam based
What we cover

Modernization that focuses on real constraints

We replace only the parts that create measurable risk or block product progress — not everything that looks old.

Codebase Audits

We identify delivery blockers, brittle modules, undocumented behavior, and dependency risk across the entire codebase.

Architecture Documentation

We map modules, data flow, and business rules so modernization decisions are grounded in evidence instead of folklore.

Controlled Migration

Frontend, backend, and storage migration in controlled slices — users and stakeholders validate progress without betting the whole system.

Performance Improvements

Schema, indexing, query, and data-flow fixes when the issue is operational bottlenecks rather than the entire architecture.

Why Oltana

Most systems don't need a rewrite. They need a clear, human-owned plan.

  • 01

    Incremental, not heroic

    Agents speed audits and refactors; engineers ship improvements in slices users can validate safely.

  • 02

    Smallest path to value

    We prefer the smallest modernization path that restores delivery speed — AI never justifies a trendy full rewrite.

  • 03

    Documentation first

    Agents help inventory code and dependencies; humans map business rules before changing production.

  • 04

    Production stays stable

    Controlled changes, rollback-safe milestones, and a human gate on every risky slice.

PHP Laravel CodeIgniter MySQL PostgreSQL React Vue Node.js Docker CI/CD REST APIs Redis
Where we focus

Modernization details that matter

Legacy problems are rarely isolated to one layer. We address the full system as one connected problem.

Audit the UX before redesigning it

Older products survive because users learned their quirks, not because the interface is good. We modernize the experience without throwing away useful domain behavior.

Document the architecture before changing it

A surprising amount of legacy risk is documentation debt. We map modules, data flow, and business rules so decisions are grounded in evidence.

Move the risky parts in controlled slices

Frontend migration, backend extraction, or platform changes happen only where they unlock real product movement. We don't modernize for trend alignment.

Upgrade dependencies before they become outages

Outdated libraries announce their cost late — security issues, broken builds, or engineers refusing to touch the code. We prioritize where risk is compounding fastest.

Fix the data model and query bottlenecks

Some legacy problems are schema, indexing, query, and data-flow problems that slowly choke delivery and performance. We address those directly.

Prototype the future state before committing

A fast prototype is often the clearest way to test whether a modernization direction is worth funding before the expensive work begins.

Assisted Engineering

Modernize with Assisted Engineering.

Agents accelerate audits, dependency graphs, and draft refactors. Engineers decide migration risk, rollback plans, and what production can safely absorb.

  1. Decide

    Engineers audit blockers and choose stabilize vs migrate vs rewrite slices. Agents help inventory code and dependencies.

  2. Build

    Agents accelerate safe refactors and upgrades. Engineers own data migrations and critical path changes.

  3. Verify

    Regression and on-the-fly checks against live behavior. Humans accept or reject before users feel pain.

  4. Ship

    Controlled release of each slice with rollback. Agents help regression sweeps; engineers own go-live judgment.

cost ↓ dev time ↓ bugs caught early human gate on every release
Case Studies

See our work in action

FAQ

Frequently asked questions

Does AI decide what to rewrite?

No. Agents help audit and draft changes faster. Engineers decide the modernization path, risk slices, and what production can safely absorb.

What do your legacy app modernization services include?

Codebase audits, architecture documentation, dependency and security upgrades, targeted refactors, UX cleanup, migration planning, and controlled re-platforming when necessary — with Assisted Engineering pace.

Do you always recommend a full rewrite?

No. A full rewrite is often the most expensive way to rediscover the same business rules. We prefer the smallest path that restores delivery speed and reliability.

Can you work with a partially undocumented system?

Yes. That is common. Agents help inventory code; humans document architecture, data flow, and ownership gaps before changing production.

How do you reduce risk while modernizing a live product?

Incremental slices, rollback-safe milestones, and a human gate on every release. Controlled change — not a heroic rewrite story.

Need modernization for a product that is slowing the team down?

Send the stack and the part everyone is afraid to touch. We'll define the least risky Assisted Engineering path forward.

Talk to an engineer →