Available for new projects

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. 16 years, 250 projects, fixed prices.

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Adriano Junior
Adriano Junior
Senior SWE · Consultant
in/adrianojr
3 weeks
MVP at GigEasy (Barclays/Bain-backed) vs. 10-week agency benchmark
10x faster
Cuez API speed-up from 3s to 300ms (Belgium SaaS)
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 logo
Tinkerlist / Cuez logo
GigEasy logo
Reevia logo
GoTherapy logo
Manejebem logo
Imohub logo
GoTherapy logo
Manejebem logo
Imohub logo
bolttech logo
Tinkerlist / Cuez logo
GigEasy logo
Reevia logo

Need Senior Engineering Help?

Missed deadlines, buggy releases, and scalability bottlenecks aren't just technical issues. They are business risks.

Your site is slow and it's costing you money

Every extra second of load time drops conversions by 7%. I've rebuilt portals that went from 4s to under 1s and watched the numbers change overnight.

See how I did it for ImoHub (Imóveis SC) →

Your dev team is stuck and deadlines keep slipping

I've joined teams mid-crisis more times than I can count. At Cuez, I inherited a 3-second API and got it down to 300ms. I find bottlenecks fast and fix them.

See the Cuez turnaround →

You keep hearing about AI but don't know where to start

Most AI pitches are vaporware. I build the practical kind: one client cut 40 hours/month of manual document processing. I automate support tickets, connect your tools, and eliminate the repetitive work your team shouldn't be doing.

Explore AI services →

Your last freelancer ghosted you

I've been building software since 2009. I don't disappear. You get daily async updates, clear timelines, and a phone number you can actually call. My clients stay for years, not months.

See 16 years of client reviews →

If any of these sound familiar, you're not alone – and there's a solution.

Services

Pick the model that fits your business.

Websites

Fixed-price websites starting at $2K. Direct work with a senior engineer, no agencies, no surprises. From corporate sites to full redesigns.

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Apps

Your own senior engineer on a $3.5K/mo subscription. I ship features in 2-4 day cycles, handle your backlog, and you can cancel anytime.

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AI

AI automation on a $3K/mo retainer. Document processing, chatbots, lead scoring: practical tools that save your team real hours every week.

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Fractional CTO

Senior technical leadership for startups and scale-ups. Engineering strategy, architecture decisions, and hiring — without the full-time overhead.

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Case Studies

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

AI
A prompt library that works with every AI tool

A prompt library that works with every AI tool

30+
Active users

A home for your best AI prompts. Save them once, then use them in Claude, Cursor, or any AI tool you work with. No more copy-paste.

Write a prompt once. Use it anywhere. That was the whole idea.Adriano Junior, Founder
AI Product30+ active usersCross-tool workflowsSelf-funded
Read case study
Web App
Built and shipped an investor-ready MVP from scratch

Built and shipped an investor-ready MVP from scratch

3 weeks
From kickoff to investor demo

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.

He builds quickly, but he also builds efficiently.Gabriel Edlin, Ops/Strategy, GigEasy
FintechMVP in 3 weeksInvestor-ready demoSeed funding enabled
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Web App
Rescued a slow API that was blocking user growth

Rescued a slow API that was blocking user growth

10x
API response time improvement

Cuez by Tinkerlist — backed by Tinkerlist group (Belgium)

Refactored the backend architecture, making the system far more responsive and scalable for the growing user base.

Always with many ideas to add and open to discuss the best approach to create the most scalable software as possible.Rafael Camillo, Senior Software Engineer, Cuez by Tinkerlist
SaaS10x faster API40% infra savingsGrowth unblocked
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Web App
Unified payment orchestration across Asia and Europe

Unified payment orchestration across Asia and Europe

40+
Payment providers integrated

bolttech — backed by Tokio Marine · MetLife Next Gen Ventures

Delivered the payment orchestration platform at bolttech, a $1B+ unicorn, with 40+ integrations across multiple regions.

A results-oriented professional.Jhonatan Amorim, Engineering Manager, bolttech
Fintech$1B+ unicorn40+ payment providers15 new markets
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My Guarantee

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.

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.

Deadlines mean deadlines

In 16 years I've never ghosted a client or missed a launch date. I deliver when I say I will, or I let you know early enough to plan around it.

Endorsed by Technical Peers

See what Engineering Managers and Senior Developers say about working with me.

Samantha Niessing
Samantha Niessing

Sr. Manager, Lifecycle Comms @ NRG

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.
Gabriel Edlin
Gabriel Edlin

Ops/Strategy - Ex Lyft

I had the pleasure of working with Adriano at GigEasy, and I can confidently say that he brings the experience of a seasoned developer who has successfully built systems at scale and learned to avoid common pitfalls. His deep understanding of the complexities that come with scaling technology is evident in the thoughtful, strategic decisions he makes throughout every phase of development. Not only can Adriano build quickly, but he also builds efficiently. He effectively manages a variety of projects each sprint while remaining accessible for ad-hoc requests that assist the business. Beyond technical skill, Adriano brings an ever positive attitude to the team, making him a pleasure to work with. If you're looking for a developer who not only has the expertise to build at scale but also the wisdom to do it right, I highly recommend Adriano. He would be a great asset to your organization!
Gregori Maus
Gregori Maus

Senior Backend Developer | PHP (Laravel) | REST APIs, AWS, PostgreSQL | DevOps, TDD, Event Sourcing

I strongly recommend Adriano as a highly competent and qualified back-end developer. I had the pleasure of working with him in the same company and it was always a great experience. He is an experienced professional, always open to new ideas and innovations, and careful with the code, ensuring the quality and efficiency of teamwork. In addition, Adriano has a very positive and collaborative attitude, and it has always been a pleasure to work with him. Undoubtedly, he is a great addition to any development team.