Stefan Surzycki
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Stefan Surzycki Email & Phone Number

Co-founder and CTO at Closers AI
Location: Greater Paris Metropolitan Region, France 10 work roles 1 school
1 work email found @therapeutes.com 2 phones found area 368 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email o****@therapeutes.com
Direct phone (368) ***-****
LinkedIn Profile matched
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Current company
Role
Co-founder and CTO
Location
Greater Paris Metropolitan Region, France
Company size

Who is Stefan Surzycki? Overview

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Quick answer

Stefan Surzycki is listed as Co-founder and CTO at Closers AI, a with 7 employees, based in Greater Paris Metropolitan Region, France. AeroLeads shows a work email signal at therapeutes.com, phone signal with area code 368, and a matched LinkedIn profile for Stefan Surzycki.

Stefan Surzycki previously worked as Startup Consultant at Coinhouse and Software Engineer at Self Employed. Stefan Surzycki holds Bachelors Of Science, Molecular Biology from Indiana University Bloomington.

Company email context

Email format at Closers AI

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*@therapeutes.com
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AeroLeads found 1 current-domain work email signal for Stefan Surzycki. Compare company email patterns before reaching out.

Profile bio

About Stefan Surzycki

Stefan Surzycki is a Co-founder and CTO at Closers AI. He possess expertise in start ups, agile methodologies, web applications, cloud computing, ruby on rails and 24 more skills. He is proficient in Spanish. Colleagues describe him as "Stefan is one of the most knowledgeable people I know, if not THE most knowledgeable when it comes to web start-ups and particularly managing the developmental branch in a burgeoning organization. It’s an amalgam of a rich experience in the start-up world, coupled with a profound analytical understanding of that experience which helps him make intelligent decisions. Besides his technical skills, he also has the ability to measure and determine other people’s strengths, and using this… Show more"

Listed skills include Start Ups, Agile Methodologies, Web Applications, Cloud Computing, and 25 others.

Current workplace

Stefan Surzycki's current company

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Closers AI
Closers Ai
Co-founder and CTO
Île-de-France, France
Website
Employees
7
AeroLeads page
10 roles · 13 years

Stefan Surzycki work experience

A career timeline built from the work history available for this profile.

Co-Founder And Cto

Île-De-France, France

Startup Consultant

Paris Area, France

The dynamic nature of the role of Startup Consultant necessitates a multifaceted approach, encompassing a broad spectrum of responsibilities. With a focus on agility and strategic vision, we were able to foster innovation and expansion in a rapidly evolving market. This approach was instrumental in helping transform the company from a nascent startup, to a formidable player in the cryptocurrency space, where the company scaled from 3 to over 100 employees and secured over €40M+ in… Show more The dynamic nature of the role of Startup Consultant necessitates a multifaceted approach, encompassing a broad spectrum of responsibilities. With a focus on agility and strategic vision, we were able to foster innovation and expansion in a rapidly evolving market. This approach was instrumental in helping transform the company from a nascent startup, to a formidable player in the cryptocurrency space, where the company scaled from 3 to over 100 employees and secured over €40M+ in funding.Some contributions include:Spearheading the recruitment and formation of the principal engineering team, earning Coinhouse the recognition from Hired.com as one of their top recruiters in talent acquisition strategies.Leading the engineering team through a transformative phase, shifting our core platform from self-custody to custodial crypto, aligning with evolving market demands and regulatory landscapes.Ensuring the highest level of security for both our infrastructure and applications, achieving bank-level security standards, thereby fortifying client trust and platform integrity.Making substantial contributions to our codebase, ranking among the top 3 contributors, which included both front-end and back-end developments, showcasing technical prowess and commitment to product excellence.Taking on the dual roles as a DevOps and Staff Engineer, demonstrating versatility and technical leadership in streamlining operations and enhancing system performance.Actively engaged in the senior management team, playing a critical role in strategising and executing key business decisions that steered the company towards accelerated growth and market prominence.Innovating and organising development methodologies and product processes, ensuring efficient workflows and productive collaboration across teams. Show less

Sep 2017 - Dec 2023

Software Engineer

Paris, Île-De-France, France

Working with Intuitive Machines, based in Houston, Texas, as a key contributor in the development of Mission Control software for the IM-1 Nova-C project, known as "Odie." My role involved leveraging advanced software engineering techniques and collaborative problem-solving to support this groundbreaking lunar landing mission.

Jun 2020 - Dec 2020

Entrepreneur In Residence

Hec Incubator

Paris Area, France

Jul 2017 - Jul 2019

Advisor

London, United Kingdom

Hiperpool is an exclusive career marketplace that connects high-potential candidates to top-tier employers in a streamlined and more effective way.Access to the platform is limited to candidates with a minimum of two years of experience in investment banking, management consulting or similar. Employers vary from high-growth startups and exciting corporates to prestigious advisory and investment management firms.

2014 - 2018 ~4 yrs

Co Founder / Cto

Paris Area, France

Blended innovative technology with strategic health service initiatives, leading to substantial growth and a successful business exit• Secured €300K in funding from business angels, validating our business model.• Developed the MVP in just 1 month, showcasing rapid product development capabilities.• Personally designed and implemented the UX and UI, enhancing user experience and engagement.• Instrumental in designing the company's philosophy and approach, • Developed a… Show more Blended innovative technology with strategic health service initiatives, leading to substantial growth and a successful business exit• Secured €300K in funding from business angels, validating our business model.• Developed the MVP in just 1 month, showcasing rapid product development capabilities.• Personally designed and implemented the UX and UI, enhancing user experience and engagement.• Instrumental in designing the company's philosophy and approach, • Developed a novel alternative medicine social coverage program, paving the way to healthcare accessibility and affordability• Achieved a 15% month-over-month growth in organic traffic through effective SEO strategies.• Reduced acquisition costs via paid channels by 800%, significantly improving marketing efficiency.• Successfully exited through the sale of shares to a third party. Show less

Jan 2014 - May 2016

Co Founder / Cto

Paris Area, France

Leveraged strategic technological insights to foster the company's rapid growth and innovation. Efforts were focused on expanding the user base and enhancing infrastructure, contributing to positioning Smartdate as a leader in technological development.• Played a key role raising €7M from European VCs, underscoring our financial and strategic viability.• Developed the MVP in 2 months with a 2-engineer team, demonstrating efficient product development.• Achieved exponential… Show more Leveraged strategic technological insights to foster the company's rapid growth and innovation. Efforts were focused on expanding the user base and enhancing infrastructure, contributing to positioning Smartdate as a leader in technological development.• Played a key role raising €7M from European VCs, underscoring our financial and strategic viability.• Developed the MVP in 2 months with a 2-engineer team, demonstrating efficient product development.• Achieved exponential growth, reaching 4 million users and 100 million monthly page views within a year.• Positioned in the Alexa top 100 in France and top 1000 globally, indicating significant market penetration.• Attracted major media attention as 2010's 'break out' success, enhancing brand recognition.• Managed team expansion from 2 to 30+ engineers, including coordinating with offshore resources.• Implemented a massively scalable SOA architecture.• Utilized open-source technologies to facilitate rapid and cost-effective growth.• Innovated in search tech, designing prototypes for scalable collaborative filtering and fuzzy logic engines.• Optimized infrastructure, reducing operating costs to less than 50% of conventional levels. Show less

Dec 2009 - May 2011

Founder / Ceo / Cto

Paris France

Successfully navigated the company from its inception to becoming a recognized player in the tech industry. Key achievements and responsibilities included:• Raised €2M from Mangrove Capital Partners, validating our high-growth business model.• Grew the team from 2 to 35+ employees, overseeing significant operational expansion.• Earned a nomination for the 2008 CNET Web 100 awards, marking us as a top industry innovator.• Garnered media coverage in major outlets like Business… Show more Successfully navigated the company from its inception to becoming a recognized player in the tech industry. Key achievements and responsibilities included:• Raised €2M from Mangrove Capital Partners, validating our high-growth business model.• Grew the team from 2 to 35+ employees, overseeing significant operational expansion.• Earned a nomination for the 2008 CNET Web 100 awards, marking us as a top industry innovator.• Garnered media coverage in major outlets like Business Week, TechCrunch, and BBC, • Speaker at 2008 TTI Vanguard’s Generation Tech Conference, sharing industry insights.• As Chief Architect, led product design, merging advanced technology with user engagement.• Ranked 4th in PC Magazine's 'Top 100 Undiscovered Websites', showcasing our unique online presence.• Facilitated a strategic trade sale to Big Café, China’s leading Internet Café Chain Show less

Jan 2006 - Jun 2009

Engineer / Project Manager

Paris France

• Maximized efficiency of existing legacy technology • Reduced dependency on expensive solutions by substituting open source technologies• Optimized technology staffing levels • Created flexible, scalable and effective infrastructure

Sep 2002 - Dec 2005

Bioinformatics Researcher

Albany, California

Contributed to groundbreaking advancements in genetic research by innovating in algorithm design and theoretical exploration, leading to recognized publications in esteemed peer-reviewed scientific journals.• Designed high performance search algorithms for DNA sequence data • Developed genetic evolution simulations• Postulated new theories in Genetic evolution• Published in several leading peer-reviewed publications.

Sep 1996 - Jan 2000
1 education record

Stefan Surzycki education

FAQ

Frequently asked questions about Stefan Surzycki

Quick answers generated from the profile data available on this page.

What company does Stefan Surzycki work for?

Stefan Surzycki works for Closers AI.

What is Stefan Surzycki's role at Closers AI?

Stefan Surzycki is listed as Co-founder and CTO at Closers AI.

What is Stefan Surzycki's email address?

AeroLeads has found 1 work email signal at @therapeutes.com for Stefan Surzycki at Closers AI.

What is Stefan Surzycki's phone number?

AeroLeads has found 2 phone signal(s) with area code 368 for Stefan Surzycki at Closers AI.

Where is Stefan Surzycki based?

Stefan Surzycki is based in Greater Paris Metropolitan Region, France while working with Closers AI.

What companies has Stefan Surzycki worked for?

Stefan Surzycki has worked for Closers Ai, Coinhouse, Self Employed, Hec Incubator, and Hiperpool.

How can I contact Stefan Surzycki?

You can use AeroLeads to view verified contact signals for Stefan Surzycki at Closers AI, including work email, phone, and LinkedIn data when available.

What schools did Stefan Surzycki attend?

Stefan Surzycki holds Bachelors Of Science, Molecular Biology from Indiana University Bloomington.

What skills is Stefan Surzycki known for?

Stefan Surzycki is listed with skills including Start Ups, Agile Methodologies, Web Applications, Cloud Computing, Ruby On Rails, Javascript, Ruby, and Rest.

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