Agentic Replatforming for Software Companies
The rewrite, without the two-year detour.
Merven rebuilds your product on a modern stack, keeping the features that earn revenue, dropping the ones that don't, and delivering in a fraction of the time your team could. Your roadmap doesn't stop. Your customers don't notice. You get the codebase you'd build today if you were starting fresh.
Ship features next sprint. Rebuild the stack in parallel. One team does both.
Built by engineers with over 5 exits in Fintech, Healthtech, and Martech.
The Problem
Every software company has a rewrite waiting. Almost none of them survive it.
You know the shape of it. The framework two majors behind. The architecture chosen when you were ten engineers, not ninety. The feature surface that grew faster than the foundation. The competitor that just launched on a stack you can't match.
You also know what happens when you try to fix it. The 18-month plan that becomes 30. The parallel build that drifts from production. The senior engineers pulled off the roadmap. The board meeting where someone asks why velocity is down. Most rewrites don't fail because the team is bad. They fail because rewriting and shipping at the same time is brutally hard.
Meanwhile the day-to-day gets worse, not better. AI coding tools made your engineers faster. Shipping didn't get faster, because the bottleneck was never typing, it was the queue between product and dev. Your PM specs a feature in an afternoon and then watches it wait a quarter.
Merven exists for exactly that gap. We rebuild your product on a modern stack while your team stays on the roadmap, and we ship features next sprint, not next year.
Who this is for
One engagement. Three answers on the exec team.
For the CPO
Ship the roadmap this quarter.
Full pods, product, design, engineering, QA, embedded in your sprint. Features merge next sprint, not next planning cycle. The rebuild happens in parallel, not instead of your roadmap.
For the CTO
Modernize without the rewrite tax.
Your stack, your review process, your repo. Old and new run side-by-side with reversible cutover. No new tool for your team to adopt, no seat count to defend, no restructuring your org to accommodate a vendor.
For the CFO
Predictable spend. No FTE ramp.
Fixed monthly retainers or outcome-based pricing. No hiring, no benefits load, no rewrite write-down when a two-year internal plan slips. Cancel with 30 days' notice and you keep everything shipped.
What We Do
Three ways to move. One team behind them.
A bad rewrite copies everything. A good rewrite copies what works. And sometimes what you actually need isn't a rewrite at all, it's throughput, or maintenance that doesn't slip.
You stay in control of every call. We just do the work.
Rebuild
A full product team, PM, design, dev, QA, replatforms your legacy product on the modern stack.
Learn more →
Augment
Embedded pods ship on your roadmap. Your PM prioritizes, our pod executes.
Learn more →
Manage
Continuous upgrades, patches, and migrations so the next rewrite never happens.
Learn more →
How It Works
Four Phases. One Continuous Cycle.
From a free audit to an ongoing managed service. You stay in control at every gate.
Audit
Understand what you have
Agents crawl your repos, runtime, and traffic to build a Digital Twin of your product: every feature, who uses it, what it depends on, what it costs to maintain. Delivered in under a week. Free.
Blueprint
Decide what's worth rebuilding
A feature-by-feature triage: keep, simplify, drop. Target stack proposed (Node, Python, Go, modern frontend frameworks; your call). Migration plan scoped with real dates. Your team approves before a line of new code is written. Already have a stack in mind? We're framework agnostic.
Rebuild
Ship the new product
Specialized agents handle the work in parallel: service extraction, schema migration, API rebuild, frontend reconstruction, test generation. Customers don't notice. Your team reviews and merges.
Manage
Keep it modern, forever
Optional ongoing service: dependency upgrades, security patches, performance regressions, framework migrations. The codebase you just got never has to age again.
Why Merven
Built for the rebuild your team doesn't have time to do.
You own everything
Your code, your IP, your repo. We don't train on it. We don't lock you in. Cancel the engagement and you keep a working codebase.
Your stack, your call
We rebuild on the modern stack you want, not the one we're locked into. Cloud-agnostic, framework-agnostic, no vendor harness that owns your architecture.
A team, not a tool
Coding-agent SaaS gives your existing team another IDE and hands the work back to engineering. We show up as the missing team, PM, design, dev, QA, and ship merged PRs.
No political sale
Nothing to procure, no seats to defend, no restructuring your org around a vendor. Buying us doesn't threaten your CTO's team, it protects their capacity.
Faster than your team can do it
Agents work in parallel across the codebase. What takes a team of ten a year takes us a quarter. We use the tooling, you buy the outcome.
Your roadmap keeps shipping
We carry the rebuild. Your engineers stay on product. No frozen sprints, no morale tax.
Proven features only
AI-driven feature triage means you don't pay to rebuild things nobody uses.
Reversible cutover
Old and new run in parallel until you say go. One-click rollback if anything looks wrong.
Outcomes
What customers ship with us.
Fixed engagements. Merged PRs. No FTE ramp, no rewrite write-down.
2x leads-to-opps conversion
2 months for a reimagined PLG onboarding funnel.
Mid-market B2B Payments · React/TypeScript, Java, PostgreSQL
6-figure deal unlocked
1 month to ship a new in-app agent.
SMB Recruiting Platform · React, Laravel, PostgreSQL
25x faster feature delivery
2 sprints to ship a key feature and close a competitive gap.
Mid-market Accounting · Angular, C#, MongoDB
FAQ
Questions we hear most.
See your rewrite, costed and scheduled, before you commit to anything.
Free Audit. One week. You walk away with a Digital Twin of your product, a feature-triage proposal, a target architecture, and a real timeline with a real number. Whether you build with us, build internally, or don't build at all, the audit is yours to keep.