Full-Time

Staff Engineer

HCompany

HCompany

201-500 employees

Autonomous AI agents for enterprise workflows

No salary listed

London, UK + 1 more

More locations: Paris, France

Hybrid

Hybrid: in-office 3 days/week on average; travel between London and Paris offices roughly every 4–6 weeks.

Category
Software Engineering (2)
,
Required Skills
RabbitMQ
FastAPI
Python
NoSQL
SQL
Apache Kafka
GraphQL
AWS
Observability
REST APIs
Flask
Django
Requirements
  • The candidate has prior demonstrable roles as Staff Engineer with a relevant set of responsibilities and achievements.
  • The candidate has strong five or more years of experience in Python backend development using Flask, Django, FastAPI, or similar frameworks.
  • The candidate has in-depth experience with distributed systems or cloud computing, preferably in Amazon Web Services.
  • The candidate has experience building and shipping end-to-end solutions.
  • The candidate has experience building APIs (REST and/or GraphQL) and integrating with external services.
  • The candidate has expertise in relational and non-relational databases.
  • The candidate has experience working with message queuing technologies such as Simple Queue Service, RabbitMQ, Kafka, or similar.
  • The candidate has a solid understanding of coding standards, architectural patterns, and test frameworks.
  • The candidate has expertise in instrumentation, observability, and monitoring.
Responsibilities
  • Define and lead technical architecture, design, and long-term engineering roadmap.
  • Develop and maintain complex, high-performance, and scalable systems.
  • Mentor and guide engineers across multiple teams, fostering technical excellence.
  • Conduct thorough code and design reviews, ensuring quality and security best practices.
  • Collaborate with Research, Engineering, and other stakeholders to deliver impactful solutions.
  • Drive improvements in system reliability, scalability, and observability.
  • Establish and enforce engineering standards, tooling, and processes.
  • Champion technical innovation and proactively address technical debt.

H Company builds autonomous virtual humanoids that operate inside enterprise software as digital operators. Its Holotron-12B and Holo series use vision-language multimodal models to perceive user interfaces, reason about tasks, and execute multi-step actions directly in web apps, ERPs, CRMs, and internal tools without traditional API integrations. Unlike typical AI assistants, its agents are deployed through Forward Deployed Engineering to embed into real workflows and deliver measurable ROI. Its goal is to replace or augment concrete tasks with autonomous agents that boost productivity at scale, supported by NVIDIA partnerships and Nemotron architectures.

Company Size

201-500

Company Stage

Seed

Total Funding

$220M

Headquarters

Paris, France

Founded

2023

Simplify Jobs

Simplify's Take

What believers are saying

  • Runner H achieves 92.2% WebVoyager accuracy, surpassing OpenAI’s Operator by 5.2%.
  • FDJ UNITED partnership deploys agents for fraud detection and customer support in 2025.
  • Holo3 release in 2026 advances multi-step task automation across ERPs and CRMs.

What critics are saying

  • Founder Charles Kantor stepped down in 2025, causing leadership instability.
  • OpenAI o1 outperforms Holo3 on WebVoyager, capturing enterprise contracts in 6 months.
  • Open-sourcing Holo-1 lets UiPath undercut H’s pricing in RPA platforms within 12 months.

What makes HCompany unique

  • H Company pioneers vision-based computer-use AI models like Holotron-12B for UI navigation.
  • Proprietary Holo series enables autonomous agents to execute enterprise workflows without APIs.
  • Forward Deployed Engineering model delivers measurable ROI in client environments.

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Benefits

Remote Work Options

Hybrid Work Options

Professional Development Budget

Growth & Insights and Company News

Headcount

6 month growth

3%

1 year growth

4%

2 year growth

23%
Sifted
Mar 18th, 2026
Gautier Cloix will bring Palantir’s ‘secret sauce’ to H Company

Gautier Cloix spent a decade at US Big Data giant Palantir before taking on the role of CEO at France’s H Company

H Company
Nov 17th, 2025
H Company and FDJ UNITED

H Company and FDJ UNITED. H Company and FDJ UNITED to collaborate on deploying agentic AI. The partnership follows FDJ UNITED Ventures' investment in H Company in 2024. Paris, 17 November 2025 - At the Choose France Summit, H Company, the French champion of agentic artificial intelligence, and FDJ UNITED, Europe's leading gaming and lottery operator, announced a strategic partnership to experiment with agentic AI across selected FDJ UNITED processes and operations. The goal of this partnership is to enable FDJ UNITED to identify high-value use cases that can increase the productivity of its internal processes and enhance the player experience, while allowing H Company to accelerate iteration cycles on its agents by testing and deploying innovations directly in real operational environments. As a Design Partner, FDJ UNITED will work hand-in-hand with H Company, actively contributing to the co-design and iterative development of solutions. Initial use cases include automated quality testing, commercial performance management of the retail network, intelligent customer support, and fraud detection. The partnership follows FDJ UNITED Ventures' participation in H Company's 2024 funding round, a global raise of more than 200 million euros alongside renowned investors such as Accel, UI Path, Motier, Bpifrance, Bernard Arnault and Eric Schmidt. Of the 75 million euros deployed to date by FDJ UNITED Ventures, 25 million euros have been allocated to direct or indirect investments in AI-focused startups. Stéphane Pallez, Chairman & CEO - FDJ UNITED "Following our investment in H Company in 2024, we are delighted to deepen and formalize our collaboration with a leading technology player. This initiative reflects our ambition to integrate agentic AI into our processes and foster a culture of continuous improvement. It also highlights our commitment to supporting the development of the French tech ecosystem. As a reminder, FDJ UNITED has been a partner of the 'Je choisis la French Tech' initiative since 2023." Gautier Cloix, Chairman & CEO - H Company "We are thrilled to announce this first strategic partnership with FDJ UNITED, an organization that has consistently placed innovation at the core of its mission to serve players. Our engineering teams are working closely with FDJ UNITED's teams to deploy and refine our agents, which today rank as the most advanced in the world in their category. These deployments will deliver measurable and significant gains, both in productivity and customer satisfaction." The AI agents developed by H Company are capable of executing complex end-to-end processes while interacting with any graphical interface with no prior integration. Their technology, currently on top of international benchmarks on computer-use agents, paves the way for autonomous, precise, and highly valuable operational automation. Last week, H Company released Holo2, a new generation of cross-platform computer-use models that sets a new performance standard for interface localization and navigation, while dramatically reducing complexity and cost. About H Company. H Company is a frontier AI research, product and implementation company pioneering the future of autonomous, agentic AI. H's unique approach blends leading edge research in computer use, proprietary models and agents, and its forward-deployed implementation approach. H is committed to delivering tangible ROI and real-world impact for its clients. H Company is 75 people strong, across offices in Paris, London and NYC. Founded in 2024, H raised $220m with investors such as Accel, AWS, Eric Schmidt, Samsung, and Bernard Arnault. About FDJ UNITED and FDJ UNITED Ventures. FDJ UNITED is one of Europe's leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With over 5,000 employees and a presence in more than 10 regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition: lottery games in France and Ireland, via an extensive point-of-sale network and online; sports betting at points of sale in France; and online games open to competition (sports and horse-race betting, poker and online casino games, in markets where these activities are authorised). FDJ UNITED has placed responsibility at the heart of its strategy and promotes recreational betting. The Group is listed on the regulated market of Euronext Paris (FDJU) andis part of the SBF 120, Euronext 100, Euronext Vigeo 20, EN EZ ESG L 80, STOXX Europe 600, MSCI Europe and FTSE Euro indices. For more information, visit www.fdjunited.com FDJ UNITED Ventures is FDJ UNITED's investment fund in startups. With €111m under management, it invests in early-stage startups (pre-Seed to Series A) operating in the following areas: Gaming & Betting, Digital Acceleration, AI & New Tech, Retailtech, Fintech, and Tech for Good. FDJ UNITED Ventures also manages a fund-of-funds activity, with subscriptions in around fifteen venture capital funds (e.g. Partech, Serena, Bpifrance). FDJ UNITED Ventures participates in several government initiatives, such as "Je choisis la French Tech" or "Tibi 2." Since 2015, it has, directly or indirectly, supported over 500 European startups, including over 300 in France, and over 4,000 jobs in Europe, including over 1,500 in France.

Sifted
Sep 29th, 2025
A swim in the Seine with H Company’s new boss, former Palantir exec Gautier Cloix

The man charged with managing the Paris startup’s lofty expectations isn’t afraid to jump in

Sifted
Jul 7th, 2025
Revealed: How H Company Founder went from raising $220m to stepping down just one year later

Charles Kantor led H Company as it went from being one of Europe’s most-hyped startups to facing an uncertain future

The French Tech Journal
Jun 10th, 2025
H Company Launches Autonomous Agent Suite To Leapfrog Tech Giants

The French AI startup, backed by top investors, released a suite of cost-efficient autonomous agents that it claims outperform OpenAI, Anthropic, and Google. Designed to execute real-world tasks, these "action models" signal a shift from chatbots to true AI-powered productivity.