Jérôme Velociter

Senior Product Engineer & Tech Lead

Salary / Daily rate

Toulouse, France

Mobility: Paris, London, ...

Freelance

Can come onsite

Skills

Fullstack DevelopmentPythonTypescriptSoftware EngineerLLMs / Large language modelsFrontend DevelopmentBackend DevelopmentReactNodeKotlinJavaAWSElectronAWS LambdaPrometheusGoogle Cloud PlatformDockerSQLiteGraphQLProduct ManagementUser ResearchMarketing StrategyPostgreSQLSolutions ArchitectProduct OwnershipNextFullstack DeveloperFastAPITerraformFigmaMetabaseRaspberry PiAnsibleBrandingCoachingRecruitment

Languages

French (Native)English (Fluent)

About me

Intro

Product engineer and tech lead with 20+ years building software from early-stage startups to production scale. Led engineering teams at agtech ventures, developed industrial IoT platforms across dozens of sites in three time zones, and co-led €4M funding round. Specialized in full-stack development, offline-first architecture, and fractional CTO services for startup teams requiring strategic technical leadership.

Links

Work experience

Freelance Product Engineer & Tech Lead

jvelo.atFreelance

Sep 2026 - Present

2 months

Toulouse, France

Product engineering and tech leadership for startup teams, from early product decisions through to production. Full-time, part-time, or as a fractional CTO. Selected works: jvelo.at

Co-founder – Software, Product & Marketing

Orius

Sep 2021 - Aug 2026

5 years

Toulouse, France

Botanical research and production for cosmetics, nutrition and pharmaceuticals. Selected for France 2030 funding. • Built BiomeOS to run growth chambers across dozens of units in three time zones, and led two engineers maintaining field systems and evolving the platform. Its offline-first architecture keeps sites running through connectivity loss and syncs data to the cloud. • Enabled researchers to independently configure experiments, run them and perform statistical analysis on the resulting data, automating equipment configuration and data processing. • Built control and data software for two CNES projects: prototype greenhouses for lunar and Martian habitats, and Gravilab, a gravity simulator for plant biology. • Co-led a €4M funding round, owning the investment narrative and investor materials, and led company marketing across brand, website and sales collateral.

Agricool

Sep 2016 - Dec 2021

5 years 4 months

Paris Area, France

Director of Software Engineering

Jan 2018 - Dec 2021

4 years

Paris Area, France

• Grew the engineering team from one engineer to eight, across embedded software, backend services, full-stack applications, DevOps and data science. • Led development and operation of the software platform for several dozen container farms in France and the UAE, spanning equipment control, data analytics, and back-office and mobile applications for growers, operations and sales. • Led the software platform’s evolution from standalone growth chambers to farms with shared infrastructure, replacing a Kotlin monolith with Go services and aligning software delivery with the hardware rollout.

Lead Software Engineer

Sep 2016 - Jan 2018

1 year 5 months

Paris, France

• Designed and built the first versions of Agricool’s farming software, from industrial IoT automation to agronomic modelling. • Delivered remote crop management for year-round commercial indoor strawberry production, including a pilot farm in Dubai managed remotely over LTE.

Co-founder & Technical director

46cl

Jan 2011 - Oct 2016

5 years 10 months

Lyon, France

• Co-founded a web, mobile and UX agency and ran it for six years with a team of developers and designers, for clients from communications agencies to corporations. • Created and led development of Mayocat Shop, an open source multi-tenant commerce platform on the JVM spanning storefronts, merchant administration, payments and content management. Production sites still run on it 12+ years later.

Software engineer

XWiki

Feb 2007 - Aug 2011

4 years 7 months

Paris, France

• Core committer on the XWiki open source platform, contributing across back-end services and user-facing features. • Bootstrapped the Iași office in Romania on site over 18 months: hired, trained and managed its development team. • Led customer and partner projects from pre-sales to delivery. Mentor for Google Summer of Code in 2008.

Software developer intern

Frog Navigation Systems (now Oceaneering)

Sep 2005 - Oct 2006

1 year 2 months

Utrecht, Netherlands

Built Python QA tooling for AGV embedded computers and developed Java services.


Education

Télécom SudParis

International Business Engineering

2006 - 2007

1 year 1 month

IMT Nord Europe

Master of Science - MS, Computer Systems Networking and Telecommunications

2002 - 2007

5 years 1 month

Portfolio

Writer's cut

Tapemark

Mayocat Shop

Savannah

Typebar

BiomeOS

Gravilab

The best place to find your next move

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