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Senior Software Engineer - Paris

hcompanyHybrid ParisEngineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Senior · 5+ yrs
Posted
2 Oct 2026
Status
Open · checked 7d ago

About this role

Senior Software Engineer - Paris at hcompany is a hybrid backend engineering role based in Paris that suits an experienced developer skilled in distributed systems and evaluation tooling. The position involves building and scaling evaluation frameworks for computer-use agents and AI models.

Role Overview

Senior Software Engineer - Paris is a full-time position located in Paris with a hybrid work arrangement requiring three days in the office per week alongside occasional travel to London. The selected candidate joins the evaluation team reporting to the VP Engineering, Ceiran Chapman, to support researchers and forward deployed engineers by making evaluation frameworks reliable, fast, and cost-effective.

Key Responsibilities

Provide integration support for researchers and forward deployed engineers introducing new benchmarks to the framework
Establish and enforce standards for onboarding new benchmarks into the system
Manage scheduling and observability to optimize cluster capacity and prevent idle queues
Ensure reproducible results across multiple trials to support reliable model release decisions
Adapt to diverse stack requirements ranging from cluster tuning to browser extensions and desktop environments
Collaborate directly with customers, ranging from individual developers to large organizations, to automate measurements and feed results back into models

Requirements

Minimum of five years of professional experience in backend development centered on production Python
Demonstrated history of building test, quality assurance, or evaluation tooling for other teams
Hands-on operational experience with distributed systems on Kubernetes within a public cloud environment, with Amazon Web Services preferred
End-to-end delivery of software systems, including REST or GraphQL APIs and third-party integrations
Proficiency with relational databases, non-relational databases, and message queues such as Amazon SQS, RabbitMQ, or Kafka
Implementation of comprehensive metrics, tracing, and monitoring from the initial development phase

Nice to Have

Prior experience measuring language model quality or building autonomous agents
Experience packaging and running workloads using Docker and virtual machines
Familiarity with Temporal, Dask, FastAPI, PostgreSQL, Grafana, or Datadog
Automation of web or desktop applications using Playwright, Selenium, or custom browser extensions
Track record of setting engineering standards through code reviews, design reviews, or mentorship

Skills and Tools

Python
Kubernetes
Amazon Web Services
REST APIs
GraphQL
Relational and Non-Relational Databases
Amazon SQS
RabbitMQ
Kafka
Docker
Temporal
Dask
FastAPI
PostgreSQL
Grafana
Datadog
Playwright
Selenium

Salary and Benefits

Competitive compensation package provided

About the Company

hcompany develops computer-use agents and underlying artificial intelligence models accessible via managed APIs and enterprise workflows. The organization publicly shares detailed evaluation trajectories and benchmark scores for transparency.

How to Apply

Interested candidates should visit the official company careers page to submit an application.

Skills and tech stack

Questions candidates ask

What is the work location and schedule for this role?

The position is hybrid based in Paris, requiring three office days per week and occasional trips to London roughly once every four to six weeks.

Is a machine learning background required to apply?

No background in machine learning is required for this position.

How many years of experience are needed?

Candidates should have spent five or more years in backend development.

What does the hiring process involve?

The interview process includes a thirty-minute talent call, a sixty-minute technical challenge, a sixty-minute system design interview, and a thirty-minute final conversation with the VP of Engineering.

Who manages the evaluation team hiring?

Ceiran Chapman, the VP of Engineering, oversees hiring for this role.

Ready to apply?

The application is on the official hcompany careers page.

Apply on company site