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+11 years / 21 clients / 3 in-house SaaS

Fractional CTO
& software development
in Madrid

Co-founder with live SaaS products. I build scalable digital products and act as technical leadership for startups and companies in Spain — no empty promises.

30 minutes free, no commitment
Trusted by
Francesco Sessa — Fractional CTO & Software Engineer in Madrid
About me

I don't execute tickets.
I understand your business and build what you actually need.

I've been building software for over 11 years, but what sets me apart isn't the code — it's that I understand why I'm writing it. I've co-founded startups, served as Fractional CTO, and shipped my own SaaS products to production. When I work with you, I don't think like a vendor: I think like someone with skin in the game.

I'm Italian, based in Madrid, and work with startups and companies across Spain. I've worked at Accenture, Telecom Italia (TIM) and ANAS (Italian road infrastructure), but I've also built products from scratch on a kitchen table. That dual perspective — enterprise discipline and startup speed — is what I bring to every project.

If you're looking for someone to execute tickets, I'm not your person. If you're looking for someone who understands your business, challenges your decisions when needed, and builds what you actually need — let's talk.

Services

I work as a long-term technical partner or on individual projects. No endless contracts, no subcontracting. Everything I build is delivered with your code and zero vendor lock-in.

I build

I advise

Data & AI

My SaaS products

My own products in production with real users.

Screenshot of Firmora

Firmora

Document management, real-estate CRM, contract automation, and e-signature in a single platform. For agencies that want order and fewer tools.

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Screenshot of OpoTracker

OpoTracker

The app that shows your real progress, takes care of your wellbeing, and accompanies you every day until you get your place. For exam candidates who want control and motivation.

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Screenshot of FlightGuard

FlightGuard

Real-time flight risk analysis. Evaluates the probability of delays or cancellations by analysing weather, airlines, fuel prices, and historical data.

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Portfolio

Consulting & development

Custom software development, systems architecture, and technical consulting for companies that need robust, scalable solutions. From web applications and APIs to data pipelines and complex integrations, I work with technical teams to build products that work in production.
TIM / Accenture / ANAS / Italiaonline / Orbyta / Gens Aurea / Uniting Group / Sparq / glueglue / Brachitek / Consulcesi / Oliver James / Aulab / Magistro / and others

Fractional CTO

Part-time technical leadership for startups that need a CTO without the cost of a full-time hire. Technology stack definition, development team hiring and management, engineering processes, product roadmap, and architecture decisions aligned with business goals.
Qubitdata / Gitaigo / PinkRoad

MVP development

Building minimum viable products from idea to launch. I validate technical feasibility, design the architecture to scale, and develop the full product: backend, frontend, cloud infrastructure, and production deployment. Ideal for founders who want to go to market fast without sacrificing quality.
HubWater / Brachitek / Gitaigo / PinkRoad / FLEXI

What they say

“
I worked with Francesco as backend lead on one of the most technically demanding projects I've been involved in. The stack spanned several very different technologies, and he took ownership of all of them, getting up to speed remarkably fast. What impressed me most was his ability to integrate complex systems on first contact — grasping how unfamiliar pieces fit together and making them work correctly, the first time. That instinct is rare, and it made him the person the team relied on when the hard problems landed (we still rely on him as of now!). I'd gladly work with Francesco again and recommend him to any team that needs a dev who can own complexity rather than be slowed by it.
Federico Magnani
CTO, glueglue™
“
Francesco is a professional who conveys confidence, not only from the point of view of in-depth technical skills but above all thanks to his way of tackling the most complex challenges. I feel confident, in conclusion, in suggesting Francesco as a real added value for any development team.
Mattia Costa
CEO, Gitaigo
“
Francesco is an incredible hardcore worker, efficient and super skilled. He helped my organisation throughout all the development of a industry changer IoT system which required a massive effort on the backend side.
Filippo Quercetti
CEO, HubWater
“
Francesco is an excellent programmer, whose great skills have allowed him to handle a variety of areas with excellent results, especially on the back-end and web development side. He is well suited to teamwork and knows how to respect agreed schedules, even under heavy stress and tight deadlines.
Andrea Rinaldo
Principal Application Engineer Manager, Emerson
“
I strongly recommend Mr. Francesco Antonio Sessa as Back-End Web Developer. During 2016, I had the pleasure to collaborate with Mr. Sessa in the context of various Web Development projects for KCS Media Srls. I was impressed by his capability of capturing and leveraging my personal feedback to the extent of evaluating and reviewing the ongoing services. I also appreciated his capability of smoothly entering and boosting multiSite development, and his very helpful and flexible attitude towards the team. He has many soft skills, a very sharp analytic approach to problem solving, and a natural inclination to exploring new opportunities. Overall, I strongly recommend Mr. Sessa as a skilled as well as trusted professional in Web development and Web maintenance matters.
Matteo Gratton
VP Principal Designer, Barclays Corporate Banking

Code of ethics

The principles I work by. Not marketing — real commitments I apply to every project.

  1. 01

    Full transparency

    No hidden costs, no surprises. Clear quotes, visible processes, and code that is always yours. Zero lock-in.

  2. 02

    Quality before speed

    I prefer to deliver well over delivering fast. Every technical decision is made with the long term in mind, not the sprint.

  3. 03

    Responsible AI

    I use artificial intelligence as a tool, not a shortcut. Always with transparency about when and how it is applied, and with absolute respect for data privacy.

  4. 04

    Startup mindset

    Small steps, feedback first, constant iteration. I apply the philosophy of validating before building — not just to code, but to every decision.

  5. 05

    No hidden subcontracting

    If I involve other professionals in your project, you will know from the very first moment. Your trust is in me, and that is never silently delegated.

  6. 06

    Confidentiality and NDA

    Fully available to sign non-disclosure agreements. Your idea, your intellectual property, and your data are protected.

  7. 07

    Direct communication

    Response within 24 hours. No ghosting, no unnecessary jargon. If there is a problem, you will know before it becomes a crisis.

Let's talk
about your
project.

No commitment. Tell me where you are, I'll tell you honestly whether I can help — and how.

email francesco@sessa.es linkedin /in/francescoasessa

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