JarvisBitz Tech
Product Engineering

Modernize, re-architect, and scale existing systems.

Architecture cleanup, performance optimization, stack migration, and feature expansion — without the big-bang rewrite.

Modernization Pipeline

Modernization pipeline

Six phases that take legacy systems from assessment to production cutover — with zero downtime.

01

System Audit

We begin with a comprehensive audit — static analysis surfaces code quality issues, dependency scans reveal vulnerabilities, load tests expose performance ceilings, and code review identifies architectural patterns that block scaling.

Technology
Static AnalysisDependency AuditLoad TestsCode Review
MIGRATION
Stage 01/06 · System Audit
Outcomes

Modernization outcomes

The measurable results our modernization projects deliver — faster systems, lower costs, zero disruption.

70%

Performance Gain

After architecture optimization

0

Downtime

Zero-downtime migration strategy

50%

Cost Reduction

Lower maintenance and infrastructure costs

3–6mo

Typical Timeline

Phased delivery with measurable milestones

Capabilities

What we deliver

From monolith decomposition to full stack migration — we modernize systems that other teams are afraid to touch.

Legacy Modernization

Move from outdated stacks to modern frameworks — incrementally, without halting operations or losing data.

Architecture Re-Design

Monolith to microservices, clean architecture, service boundaries, and domain-driven decomposition.

Performance Optimization

Query tuning, caching strategies, bundle optimization, lazy loading, and infrastructure right-sizing.

Stack Migration

Language, framework, database, and cloud platform migrations with phased rollout and rollback plans.

Technical Debt Reduction

Systematic refactoring, test coverage improvement, dependency updates, and documentation overhaul.

Feature Expansion

Add new capabilities to established products while preserving stability and backward compatibility.

Stack

Technology stack

We work across legacy and modern stacks — meeting your system where it is and migrating it where it needs to go.

Modern Stack

Next.jsReactNode.jsTypeScriptGo

Legacy Stack

.NETJavaPHPjQuerySQL Server

Database

PostgreSQLMongoDBRedisMySQL

Migration

FlywayPrisma Migratepg_dumpDual-Write

Testing

PlaywrightJestk6Lighthouse

Infrastructure

DockerKubernetesTerraformGitHub Actions

Have an existing system that needs work?

Describe what you're dealing with — we'll assess the architecture and recommend a modernization path.