Mert & Kadir · Built & Kept Alive

Two senior builders.
Software that keeps working.

Two people. 25+ years. You contract with both of us, and both of us are who build, ship, and keep your software alive. No subcontractors. No rotating teams. No handoff.

Mert
Kadir

You don’t hand us tickets. You hand us a goal, and we take it from zero to shipped ourselves: product, engineering, the decisions, the code. Fast, because that’s what we’re for.

Most shops sell you senior names, then staff the work with juniors you never meet. We’re the opposite. And because there are two of us, someone always knows your system.

The rhythm

Same as working with one of us: a fixed daily check-in each weekday (in your timezone — we adapt to it) and one weekly call. Scheduled, not a pager. What changes isn’t when we’re available. It’s who’s behind the work: two seniors, not one.

Two on every hard call

Architecture, build-vs-buy, the scary migration — decided by two senior people who both know your system, not one person guessing alone.

No single point of failure

Knowledge lives in two heads. One of us is out, the work keeps moving and nothing walks out the door.

More range

Two senior skill sets cover more ground than any one person: product, infrastructure, data — whatever your stack needs.

We don’t just advise, and we don’t just code. We take responsibility for the software becoming real, and staying real.

In their words

“I used Mert & Kadir to help me build out a customized agent for my company. It’s become the most useful tool I’ve ever used, and I’m back again to build more with them. Good humans that build good stuff quickly is so rare. They’re incredible.”
Todd Herman Entrepreneur · Inc. 500 Fastest-Growing Company winner

Range

Almost nothing in your stack is new to us.

We’ve been shipping since 1999 — through every era of the web, from the first dynamic sites to today’s AI agents. Payment infrastructure, real-time comms, e-commerce: we’ve built across all of it, taken it from zero to live, and kept it running. The decade changes. What we do with it doesn’t: build it properly, ship it, keep it alive.

AI agents & copilots

Autonomous and assistive AI wired into real workflows, not demos.

  • Agency sidekick
  • Inbox-summarization agent
  • Agentic support
  • Custom agents

Coaching & learning

Platforms that track client progress and prove the results at scale.

  • Client transformation platform
  • College-app coaching
  • Accountability & OKRs

Real-time comms

Talk, call, and route conversations at scale, in real time always.

  • WebRTC p2p calls
  • Voice messaging
  • Call-center queue
  • Support ticketing

Commerce & payments

Selling, recovering lost revenue, and rewarding customer loyalty.

  • Bespoke e-commerce
  • Failed-payment winback
  • Group reservations
  • Referral rewards

Email infrastructure

Deliverability, reputation, and engagement you can actually measure.

  • Delivery & reputation
  • Engagement analytics
  • Screenshot & inbox testing

Editors & docs

Where teams write, sign, edit, and decide together in one place.

  • TipTap editors
  • Notes & sharing
  • Document e-sign
  • Roadmap & feedback

Platform & SDKs

The quiet plumbing that other products are built to run on every day.

  • App marketplaces
  • Third-party SDKs
  • Zapier / Shopify / Trello
  • Custom-domain proxy

Ops & workflow

Systems that keep the whole business moving, steadily, day to day.

  • QA worker queues
  • Applicant tracking
  • Agency CRM
  • Dashboards & SEO

Whatever your stack needs next, the odds are two of us have shipped something like it — and kept it alive.

A few in detail

Social · Niche network

A reading network that understands how people read

A social network for book lovers with archetype detection at its core — readers matched and networked by how they read, not just what. We built the matching engine, profiles, and community, end to end.

Payments · Revenue recovery

Catching the revenue that quietly leaks away

Failed-payment recovery and winback with a human-in-the-loop where it counts. Automated retries and dunning handle the easy cases; the hard ones get routed to a person, with the whole process tracked and tunable.

AI · Support

Support that answers before a person has to

An agentic support system that resolves what it can on its own and hands off cleanly when it can’t. Built into the existing ticketing flow, so nothing falls through and every escalation arrives with context.

In their words

“LTVplus runs managed support teams — human plus AI — for MSPs and fast-growing companies, under our clients’ brands. That promise only holds if the software behind it is rock-solid: automation that actually resolves tickets, systems that hold up under real volume, and engineering you’re not constantly babysitting.

Two Heads built that and kept it running for us. Mert and Kadir owned it end to end — the product calls, the hard architecture, the migrations — with no junior handoff and no context dropped on the floor.

When you’re telling clients you’ll be live in 30 days with no shared queues, you need builders who treat your system like their own. That’s exactly what we got.”

GQ Fu Co-founder, LTVplus

Packages

One step in, or your whole product team. Same two people either way.

Pilot

Start here

Seeing how we work before committing

In flight
One real priority, for two weeks
Cadence
Daily check-in · One call, within the two weeks
$4,000
Two weeks, once*
Choose Pilot

Maintain

Keeping live software healthy and current

In flight
Upkeep, fixes, small improvements. No active roadmap build
Cadence
Daily check-in · 1 hr weekly call
$5,000
Monthly, repeating
Choose Maintain

Build

Most chosen

Moving your roadmap, one priority at a time

In flight
One priority at a time, taken 0 → shipped
Cadence
Daily check-in · 2 hr weekly call
$8,500
Monthly, repeating
Choose Build

Scale

Running us as your whole product + eng team

In flight
Several priorities in parallel. We carry the roadmap
Cadence
Daily check-in · 2 hr weekly call
$13,000
Monthly, repeating
Choose Scale

* The Pilot is a smaller first step at the same rate, not a discount. Continue, and it rolls straight into the first two weeks of month one — nothing extra, no reset. You risk two weeks, not a month.

Why two of us beats one full-timer

A single hire is one point of failure. Sick, on holiday, or quits — and your product knowledge walks out the door.

Two of us means someone always knows your system. Two senior brains on the hard calls. Product and engineering, owned end to end. Work that doesn’t stall when one person is away. And none of the cost of two salaries, two sets of benefits, or the gap when someone leaves.

“It has to work on Monday, and still work next year. That’s the whole point.”

Terms

Billing
Flat monthly, billed in advance. One-month minimum, then month-to-month. Either side ends it with 15 days’ notice before the next cycle.
Focus
Build means one priority at a time — that’s the feature, not a limit. Reprioritize whenever you want; you set the order.
Communication
Outside the weekly call, everything’s in writing: Slack, email, comments on the work. Scheduled, not on-call.
Incidents
A live-product problem jumps the queue and gets handled the same business day, not stuck waiting on one person. A formal 24/7 guarantee is a separate arrangement.

Talk to both of us

A 30-minute intro call. Both of us on it, no salespeople in between.

Bring the goal you’re stuck on. We’ll tell you straight whether we’re the right two heads for it — and which package fits. Pick a time below.

Prefer email? Reach us at [email protected].

Reach us

Tell us the goal. We’ll take it from zero to shipped — and keep it alive.

[email protected]