Forward deployed engineering

Ship like youhave a senior team.

Tall Karol is a dev studio that likes to work as an extension of the team — not just a hired keyboard. On a project or a retainer, your goals are my goals, your KPIs are my KPIs.

Let's work togetherSee the work →

Trusted by teams at

The Pitch

Senior engineering, without the hiring trap.

You need senior engineering. There are three standard ways to get it — an agency, a full-time hire, a freelancer. Here's what working with Tall Karol looks like instead.

One person, end to end

The person you talk to is the person in the repo. I scope the work, build it, ship it, and write it down — no project managers, no handoffs, no bench.

The edge over an agency

Sized to the work

Fractional on retainer or scoped by project. The engagement flexes with the workload — senior firepower for the surge, no idle seat in the quiet months.

The edge over a full-time hire

Context that compounds

Your Slack, your standups, your repo. Everything ships documented, so the knowledge stays in your company — and I'm still here next quarter.

The edge over a freelancer

The model

That's the whole model — not a vendor alongside your company, an engineer inside it.

Read the full pitch →

  • Kickoff in days, not a recruiting cycle.

  • Progress you can inspect, not a status deck.

  • Documentation as a deliverable, not an afterthought.

Mineralife B2B website homepage after the headless rebuild

Website Development

Sites that load fast and get found — by people and by AI.

Marketing sites and content platforms that hold their speed — and their rankings — long after launch. Mineralife's B2B site is the proof: rebuilt to get found in Google and AI search alike, with every inquiry landing in their sales pipeline instead of an inbox.

  • Custom builds in Next.js and React
  • Enterprise WordPress multisite, including WordPress VIP
  • Elementor and page-builder sites your team edits — without the speed penalty

This site is the demo.

The websites I ship are held to the bar this page holds — a near-perfect Lighthouse report, mobile, throttled, in production.

  • Performance — passed
  • Accessibility — passed
  • Best Practices — passed
  • SEO — passed
  • 2/2Agentic Browsing
Verify on PageSpeed Insights →

Web Application Development

Tools built around your process, not a vendor's roadmap.

Custom software shaped around how your business works, not the other way around.

  • A/R tools, document portals, customer portals, dashboards
  • Auth, roles, and audit trails — the boring parts done right
  • Next.js/React, TypeScript, PostgreSQL, serverless AWS

Don't take my word for it — log in.

Two working demos. Real screens, fake data, open credentials, no signup. Take them for a spin — these are the floor; together we can shoot for something with much taller aspirations.

Automations & Integrations

Your platforms, talking to each other on their own.

The connective tissue between the platforms you already run. The proof: WordPress VIP multisite and integration engineering for Great Day Improvements — a repeat engagement that kept shipping through a merger.

  • REST API integrations across CRM, marketing, and ecommerce
  • ETL pipelines, event-driven automation, error handling
  • Zapier where it's smart, custom code where it matters

A sample reorder journey, built and automated end to end.

This sample integration mirrors a reorder flow a business might use to turn a first-time buyer into a repeat customer. I built every step — from the purchase webhook and welcome email to click tracking, return visits, cart activity, and coupon redemption. Your flow will be different; I can connect and automate it across the platforms your business already uses.

  1. First orderwebhook
  2. Welcome emailResend
  3. Link clickedclick event
  4. Return visitUTM tag
  5. Add to cartcart event
  6. Second ordercoupon code

Problem: one-time customers. Solution: data-driven automation.

See the full wiring→Run the journey live→

On AI

AI where it earns its place

AI is an ingredient in how I build, not the pitch. It enters a project the way any other dependency does — when a specific capability solves a specific problem — and it has to hold up in production.

Local models, air-gapped data

Open-weight models on your own infrastructure — contracts, records, and customer data never touch a third-party API. No per-token bills, air-gapped when compliance requires it.

Models inside working tools

LLM steps inside software your team already runs — plain-English search over your records, document intelligence in the intake queue. Not a chatbot bolted on the side.

Hosted APIs when they're the right call

Some jobs are better served by a frontier model behind an API — wired with cost ceilings, fallbacks, and error handling. Local versus hosted is engineering, not ideology.

A network of assistants, when you want the output

TALLKAROL HiveMind: four lanes — build, content, delivery, care — and, on advanced plans, an orchestrator that coordinates them in parallel. Tuned to your brand, gated by your sign-off.

Engagement models

Let's Work Together

Same senior engineering, what changes is how you buy it and how long I stay.

Choose an engagement model

Project

No monthly commitment

A defined build with a defined finish line. Scoped upfront, shipped to production, documented and handed off clean — or rolled into a retainer if you want the studio to keep running it.

  • Fixed scope, fixed timeline
  • Discovery → build → launch → handoff docs
  • Most projects become retainers once the build is live
Continue with Project →How projects work →

Retainer

Reserved work schedules

A forward-deployed senior engineer, embedded in your team. Your Slack, your standups, your roadmap — with a monthly hours bank that flexes as priorities shift. Builds, integrations, fixes, and the stuff nobody else has bandwidth for, shipped every week.

  • Monthly hours bank, scoped to your roadmap
  • Embedded in your tools and cadence from day one
  • Senior end-to-end — no handoffs, no account manager
Continue with Retainer →How retainers work →

White-Label

For agencies

You keep the client relationship and the credit. I handle the delivery — senior, reliable, invisible. Overflow builds, specialist work your bench doesn't cover, or a standing delivery arm behind your brand.

  • Your brand on everything that ships
  • Senior delivery without expanding your bench
  • Standing partnership or per-engagement
Continue with White-Label →How partnerships work →

Highly technical, incredibly quick to learn new workflows, and remarkably dynamic when it comes to evolving project requirements.

Christopher Jarvis

VP of Enterprise Digital Marketing, Great Day Improvements

From the knowledge base

The questions buyers ask, answered in writing.

Browse all articles →

What is a fractional engineer?

A fractional engineer is a senior software engineer embedded in your company part-time, on an ongoing basis — senior leverage without the full-time cost.

Read the answer →

How much does a custom web app cost?

A single-purpose internal tool runs $15k–45k; a multi-role system $35k–90k; a customer portal $80k up. What moves the number, and what quotes leave out.

Read the answer →

How to fix failing Core Web Vitals

LCP, INP, and CLS have three different causes — what loads first, what JavaScript blocks, and what moves. How to fix each, usually without a rebuild.

Read the answer →

Tell me what you're trying to ship.

30 minutes, no pitch deck. Bring the problem — I'll bring questions, and you'll leave with a straight read on scope, approach, and fit.

Book an intro call
Or email: hello@tallkarol.comOr call: +1 (216) 505-8192