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Careers

Join a team building something genuinely useful

At DOMSELARDI, we look for people who like serious work, real responsibility and products that genuinely help their users. We build useful software that respects people and their data - no advertising cookies, no tracking, hosted in France.

Open positions

Our first hires

We are opening our first roles progressively. If one of them feels like a strong fit, write to us now: we read every application carefully and prefer a clear conversation to a formal process.

Technical - Product

Applied cryptography engineer

Paris 7th / Hybrid Permanent contract Master's or PhD

You work on the cryptographic trust mechanisms that make our products credible in everyday use. The point is not theory for theory's sake, but turning demanding work into a service that helps real people and teams.

What you will do

  • Design and test trust mechanisms at the heart of the product
  • Write and review careful code in Rust or C++
  • Document key choices and their limits
  • Work with the product team and research partners

What we are looking for

  • Strong background in cryptography, mathematics or security
  • Comfort moving from idea to code, then from code to use
  • Comfort reading research work without losing sight of reality
  • Interest in demanding topics that take time to get right
Apply for this role Opening soon
Technical - Security

Security architect

Paris 7th / Hybrid Permanent contract 5+ years' experience

You create a clear frame so the product stays reliable in demanding environments. Your role is to help the team make good decisions early, not to add complexity afterwards.

What you will do

  • Define security requirements for deployments
  • Work with product and backend teams on sensitive choices
  • Prepare the reviews and audits that matter
  • Keep a clear view of access, possible incidents and trade-offs

What we are looking for

  • Solid experience in security architecture
  • Ability to make complex topics understandable
  • Comfort in public-sector, healthcare or other sensitive contexts
  • Calm judgement, rigour and taste for well-framed work
Apply for this role Opening soon
Technical - Development

Backend engineer, Rust / Python

Paris 7th / Hybrid Permanent contract 3+ years' experience

You build the flows that make documents arrive in the right place at the right time, without unnecessary detours. Your work shows up in the product's reliability every day.

What you will do

  • Build backend services and APIs for our products
  • Create integrations with payroll tools and existing systems
  • Improve resilience, tests and code readability
  • Work closely with security and product teams

What we are looking for

  • Strong backend experience in Rust or Python
  • Interest in integrations and systems that need to last
  • Attention to code quality and operational reliability
  • Interest in products used by real teams every day
Apply for this role Opening soon
Business - Growth

Institutional business development manager

Paris 7th / Travel in France Permanent contract 5+ years' experience

You help organisations understand quickly whether our products solve a real problem. You represent what we build honestly, without vague promises and without unnecessary theatre.

What you will do

  • Open and qualify the right conversations
  • Coordinate with HR, digital and procurement teams
  • Prepare proposals that are clear and easy to compare
  • Keep long decision cycles organised and moving

What we are looking for

  • Experience in complex B2B or B2G sales
  • Comfort with public-sector or strongly structured organisations
  • Clear written and spoken communication
  • Patience, rigour and product understanding
Apply for this role Opening soon

No role is a perfect match today, but you think you could be genuinely useful? Tell us who you are and what kind of work you want to do.

Send a spontaneous application
A technician examining a machine at close range - focused work that depends on patience, calibration and care.
A calm mind for exacting work

Why join us

What you will find here

A product with real use

The work has a clear purpose: helping people find important documents and helping teams deliver them better.

Real responsibility

Joining now means taking part in choices that genuinely shape the product, not just executing a roadmap that was decided long ago.

A team that speaks plainly

We prefer honest conversations, explained decisions and difficult topics raised early over false consensus.

Conditions & Benefits

A job that works in practice, not only on paper

We want the offer to be clear before you join: good compensation, genuine flexibility and the means to do serious work in good conditions.

Competitive, readable compensation
BSPCEs so you can share in the next stage
Hybrid rhythm with real flexibility
Health insurance fully covered
Training and conference budget
Hardware choice that matches how you work
Transport and mobility support
Meal vouchers

Hiring process

Clear, fast and respectful of your time

We aim to reply to every application within 5 business days and complete the full process in under 3 weeks when everything aligns.

01

Application

Send your CV and a few lines on what you are looking for. No formal cover letter expected.

02

First conversation

30 minutes to understand your path, our need and whether there is real mutual interest.

03

Role interview

A deeper conversation about your field, how you work and the problems you genuinely like solving.

04

Short exercise

If needed, a time-boxed practical case based on a realistic situation and clearly explained in advance.

05

Offer and onboarding

A clear proposal, then a progressive start with simple reference points from the first weeks.

Skills you will develop

Software development at DOMSELARDI is a craft, not a process

We do not expect everyone to arrive with every skill. What we do expect is the desire to get better, a taste for serious work, and the patience to understand a problem before writing a line of code.

Working here, you will engage directly with applied cryptography, secure system design, integration with real payroll tools and the constraints of sovereign infrastructure. These are not things you learn in a tutorial.

Apply now
A worker sorting material by hand on a production line - careful attention applied to real work, step by step.
Real work, careful attention
Applied cryptography - ZKP, end-to-end encryption, zero-knowledge architecture
Systems programming in Rust - correctness, safety, performance
Backend design with reliability and auditability built in
Payroll integrations - structured formats, traceability, data minimisation
Sovereign infrastructure - French hosting, no third-party dependencies
Security review practices - threat modelling, code review, audit preparation
Workers preparing and packaging food at a long counter - method, consistency and attention repeated at every step.
Method shows up in repeated gestures

Our values

What really matters inside the team

Useful standards

We care about high-quality work, but not complexity for its own sake. Standards should make the product better, not flatter the team's ego.

Clarity without ego

We try to speak plainly, explain decisions and raise problems early. Clear communication is a form of respect.

Respect for time

The time of colleagues, candidates and partners matters. We want useful meetings, sharp priorities and promises that hold.

Think you could help?

Even if the right role is not published yet, tell us what you do well and what kind of work you are actually looking for.

Spontaneous application Contact us