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1 spot available for Q3

I'm Adriano. I build software for founders who can't hire a CTO yet and for business owners tired of slow sites, broken tools, and freelancers who ghost. 17 years, 250 projects, fixed prices.

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Adriano Junior
StatusOpen · 1–2 slots
Shipped250+ projects
Adriano Junior
Senior SWE · Consultant
in/adrianojr
Or pick what you need
Proof, not promises
10x faster
Cuez API speed-up from 3s to 300ms (Belgium SaaS)
3 weeks
MVP at GigEasy (Barclays/Bain-backed) vs. 10-week agency benchmark
40+
Payment providers integrated at bolttech ($1B+ unicorn)

I've built production systems for

From Series-A startups to enterprise fintech, 250+ projects shipped since 2009.

bolttech
40+ payment providers · $1B+ unicorn
Cuez by Tinkerlist
API 10x faster · 3s → 300ms
GigEasy
Investor-ready MVP in 3 weeks
Imohub
120k+ properties · 70% infra cut
Reevia
2M+ records · <50s HubSpot sync
LAK Embalagens
45% bounce cut · 3x SEO impressions

Pick your problem. I've fixed it before.

Four situations I see every month. Pick yours and see the fix I shipped, with the numbers.

A slow site quietly drains revenue every day it stays up.

I rebuilt Imóveis SC as Imohub: 120k+ properties, sub-half-second search, and a 70% lower infrastructure bill. Faster pages, lower costs, more conversions.

Adriano brings the experience of a seasoned developer who has built systems at scale and learned to avoid common pitfalls. If you're looking for someone with the expertise to build at scale and the wisdom to do it right, I highly recommend Adriano.Gabriel Edlin, Ops/Strategy, GigEasy
See the Imohub rebuild
70%infrastructure cost cut at Imohub

Services

One senior engineer, five ways to work together. Start with one, compound the rest as you grow.

Fixed price

MVP Development

$6,999

Fixed price · ships in 3 weeks

An investor-ready product built in about 3 weeks. Full-stack: authentication, your core feature, payments, and production deployment. Scope agreed in writing, price locked before I start.

ROIGigEasy MVP shipped in 3 weeks for a Barclays and Bain-backed team.

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Monthly subscription

Applications

$3,499/mo

Your own senior engineer on subscription. I ship features in 2–4 day cycles, pay down the tech debt slowing your product, and own the whole technical side. No hiring, no contracts.

ROIOne subscription replaces a full-time senior hire.

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Monthly retainer

Fractional CTO

from $4,500/mo

Architecture, hiring, and investor readiness for pre-seed to Series A. Senior leadership without the full-time overhead.

ROI80% of the strategic value at a fraction of a full-time CTO's cost.

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Monthly retainer

AI Automation

$3,000/mo

Document processing, chatbots, and lead scoring grounded in your real data. 30-day accuracy warranty.

ROISaves teams 20–40 hours of manual work every month.

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Fixed-price project

Websites

from $2,000

Fast, conversion-ready sites with a 14-day money-back guarantee and a 1-year bug warranty. 100% code ownership.

ROILAK Embalagens: 45% lower bounce, 3x SEO impressions.

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Case Studies

Real challenges. Real code. Real impact. See how I solve complex problems.

Web App
Built and shipped an investor-ready MVP from scratch

Built and shipped an investor-ready MVP from scratch

GigEasy — backed by Barclays · Bain Capital · Zean Capital Partners

Built the entire technological base and delivered MVP in just 3 weeks, enabling a successful rapid launch and investor demo.

Adriano brings the experience of a seasoned developer who has built systems at scale and learned to avoid common pitfalls. If you're looking for someone with the expertise to build at scale and the wisdom to do it right, I highly recommend Adriano.Gabriel Edlin, Ops/Strategy, GigEasy
FintechMVP in 3 weeksInvestor-ready demo70% time saved
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0 weeksFrom kickoff to investor demo
0Production outages during demo week
Website
Turned a digital agency's website into its best sales tool

Turned a digital agency's website into its best sales tool

+35%
Leads generated

Built a conversion-first website for a digital marketing agency. Brand-aligned, loaded with nine live demo sites, and structured to answer every buyer objection before the first call.

The website started closing clients before I even picked up the phone.Norte Web Digital
Digital Agency+35% leads+15% revenueConversion-focused website
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Web App
Four systems, one source of truth: HubSpot visibility for one of Brazil's largest vet networks

Four systems, one source of truth: HubSpot visibility for one of Brazil's largest vet networks

2M+
Records processed

Built a custom integration layer for Reevia that connects four source systems into HubSpot for one of Brazil's largest veterinary companies. Over 2 million records processed with full normalization. Any lead from any system is inside HubSpot in under 50 seconds, standardized and ready to use.

For the first time, our teams all work from the same data. The integration runs silently in the background and just works.Reevia
2M+ records<50s sync4 weeks deliveryHubSpot integration
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AI
An AI knowledge base your whole team uses via MCP

An AI knowledge base your whole team uses via MCP

30+
Active users

A personal library for Skills, Agents, and Rules, built once, used across Claude, Cursor, and any MCP-compatible AI tool. Save your best workflows once. Run them anywhere.

AI Product30+ active usersMCP-nativeSelf-funded
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My Guarantee

The risk is on me, not you.

Three promises I put my name on. They are the same in year one as in year seventeen — backed by a guarantee, not a handshake.

1

You talk to me, not a project manager

No account managers, no middlemen, no game of telephone. When you hire me, you work directly with the person writing the code.

2

If it ships, it works

I don't push code and pray. Everything gets tested, reviewed, and deployed with monitoring. If something breaks after launch, I fix it. No extra charge.

3

Deadlines mean deadlines

In 17 years I've never ghosted a customer or missed a launch date. I deliver when I say I will, or I let you know early enough to plan around it.

14dayMoney-back guarantee. Not happy? Full refund, no questions.
1yearBug warranty on every website I ship. If it ships, it works.
$0extraPost-launch fixes included. Something breaks, I fix it.

Every engagement is personally backed. If it ships, it works — and if it ever doesn’t, that’s on me to make right.

Adriano

Named reviews you can verify

Managers and senior engineers from GigEasy, bolttech, and Cuez. Every quote links to a real LinkedIn profile, so check any of them before you trust me with your build.

Adriano is a rare type of engineer who excels, not just in his technical domain, but as a solution-driven collaborative member of the team. I am continually impressed with his ability to create robust products in incredibly short time frames AND to provide smart solutions that improved both our internal efficiency and user experience.
Samantha NiessingSamantha NiessingSr. Manager, Lifecycle Comms @ NRG · GigEasy
01/08

Questions founders ask before we start

The things worth knowing before you send the first message.

Most projects fit one of my four services, but custom work is common. On the call, I'll scope your requirements and tell you straight: if it's in my wheelhouse, I'll quote it; if not, I'll point you to a specialist I trust. Either way, you get a real answer, not a sales pitch.

Collaboration is key. I include a set number of revision rounds in every project (typically at least two rounds of revisions are built into the plan). I'll schedule agreed-upon checkpoints (after a prototype, midway through, etc.) where you can give feedback to keep the project on the right track – no last-minute surprises. My goal is that the final product is exactly what you envisioned. If tweaks are needed, I'll adjust promptly.

I completely understand this concern. That's why I publish my prices, my guarantees, and named reviews you can verify on LinkedIn. I'm also happy to provide references from past customers. Every engagement starts with a 14-day money-back guarantee: if you're not happy in the first two weeks, you get a full refund. My approach is built on transparency: clear communication, regular updates, and no surprises.

Every engagement starts with a 14-day money-back guarantee: if you're not happy in the first two weeks, you get a full refund. Websites also carry a 1-year bug warranty. Beyond that, I'll work with you on revisions and adjustments until the final product is what you envisioned. I stand behind my work.

Project timelines depend on scope and complexity. Simple websites can be completed in 1-2 weeks, while complex web applications might take 4-8 weeks. Your written proposal includes a detailed timeline based on your specific requirements. I'm known for delivering quality work efficiently – for example, I built GigEasy's entire MVP in just 3 weeks. I'll always be transparent about timelines and keep you updated on progress.

I adapt to your preferred tools, whether it's Slack, Teams, Discord, or Email. You'll have direct access to me for quick updates, ensuring you're never left wondering about the project's status. For task management, I can integrate with your existing workflow (Asana, Jira, Linear, etc.) to keep everyone aligned.

I serve customers across the Americas and Europe. I maintain a flexible schedule to ensure significant overlap with your business hours for meetings and collaboration, creating a seamless 'in-house' feel regardless of location.

I stand behind my work. Website projects come with a 14-day money-back guarantee plus a 1-year bug warranty, any bug I introduced, I fix at no charge. Subscription engagements include a 14-day money-back guarantee: not happy in the first 2 weeks, full refund, cancel anytime after. My goal is a stable, reliable product you can trust.

You do. 100%. From the first line of code, the repository, cloud accounts, and assets belong to you. I build to hand off, ensuring you have total control and independence. No vendor lock-in.

I love new ideas, but I respect your budget more. If a request falls outside the original scope, I provide a clear estimate of the extra time and cost before doing the work. You remain in the driver's seat of your budget at all times.

Yes. Many customers come to me with 'legacy' or stalled projects. I start with a code audit to identify bottlenecks, then propose a roadmap to stabilize and modernize your platform, often saving it from a total rewrite.