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Expert(e) Métier Paie & DSN

Alassio
Contract type
Ongoing
Work mode
Hybrid · Paris, France · Aix-en-Provence, France
Experience
Senior · 5+ years

Job description

Business expert for payroll and DSN who analyses complex payroll topics, turns business needs into functional specifications and test cases, and supports the product roadmap and escalated customer cases.

At a glance

Employment
Full-time · Employee (employment agreement)
Work mode
Hybrid · Paris, France · Aix-en-Provence, France
Languages
French – fluent

What you'll do

  • Analyse business topics from the roadmap: applicable rules, edge cases, impacts on payslips and DSN, especially for extending Alassio to new regimes
  • Investigate the most complex cases escalated by support: calculation discrepancies, anomalies and DSN rejections, regularisations; identify the cause and the right answer
  • Formalise analyses into functional specifications for the Tech team
  • Build test cases before each production release
  • Own topics end to end, from scoping to production release, with the Tech team
  • Prototype with AI tools if needed to validate an approach
  • Turn recurring irritants into product topics prioritised with the Head of Business, and enrich functional documentation and the knowledge base

What we're looking for

  • 5 to 8 years of payroll experience, including experience as a consultant at a payroll software vendor or in payroll MOA
  • Advanced practice of functional analysis: specifications, test cases
  • Mastery of DSN: structure, controls, anomalies and rejections, regularisations
  • Solid knowledge of payroll rules in a multi-collective-agreement environment
  • Clear, structured writing understandable by both a developer and a payroll manager
  • The reflex to get to the bottom of a topic before writing a line of specification
  • Autonomy to own a topic end to end
  • Ability to make business and tech talk to each other

Nice to have

  • Hands-on use of a market payroll software
  • Experience with a product project management tool (Linear, Jira or equivalent)
  • Comfort with AI or prototyping tools

Your team

Métier

Works daily with the Head of Business, the Payroll Configuration Engineer, support, the Tech team and the Head of Legal.

Benefits

  • Fixed salary of 60 to 75K€ depending on experience + BSPCE
  • Alan health insurance
  • Swile card (meal vouchers)
  • High-end computer equipment (MacOS, curved screen)
  • Regular remote work possible
  • Regular team offsites (about one per quarter)

How to get hired

  1. 1Introductory call with Hector (COO): 30 min
  2. 2Business interview with Huy Anh (Head of Business) and Hector: 45 min
  3. 3Live practical case with Huy Anh and a developer: from a real customer escalation, qualify the need and outline a specification and its test cases: 1 h
  4. 4Meeting with the team: 1 h
  5. 5The process ends with reference checks

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About Alassio

A modern, scalable payroll software designed for the realities of the field

Alassio builds a new-generation payroll software for accounting firms, launched in July 2025 and deployed with clients since March 2026, backed by Partech and business angels.

Mission

To renovate the payroll profession for the benefit of payroll managers

Key facts

  • Raised 2.6 M€ in pre-seed from Partech and reference business angels
  • Launched in July 2025 and deployed with clients since March 2026

Partners & customers

Partech

What they value

  • Maintaining a strong requirement on product quality and support