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Senior Software Engineer

BAILLY NETWORK

Paris · flexible Full-time Senior €80k – €100k/yr Today

About the role

Summary / Highlights

  • €80K to €100K gross per year depending on seniority
  • Remote-friendly from France or Spain
  • Start ASAP – CDI / Permanent contract
  • Full remote possible, with strong product & engineering ownership
  • Broad full-stack environment: product, AI, data-heavy systems and internal tooling
  • English fluent required / French not mandatory

A high-quality Senior Software Engineering opportunity

Join a profitable European consumer tech scale-up building the future of online shopping.

The product already helps millions of users shop smarter, save money and make better purchasing decisions across thousands of merchants.

The company is a certified B Corp, has reached profitability in its core market, and is now scaling internationally with a strong focus on the US.

The product suite spans cashback, automatic coupons, price alerts, carbon tracking, AI-powered shopping assistance and large-scale e-commerce data.

The Role

As a Senior Software Engineer, you will work on high-impact product and technical challenges across the stack.

This is not a narrow backend-only or frontend-only role. The team is looking for versatile engineers able to take ownership from product idea and technical design to production deployment, monitoring and iteration.

You may contribute to:

  • User-facing product features reshaping the online shopping experience
  • AI-powered shopping assistant initiatives helping users find products by price, quality and impact
  • Scalable algorithms and systems extracting, structuring and leveraging massive quantities of e-commerce data
  • Search, recommendation, data-heavy or automation features
  • Internal tools, customer support stack, fraud detection mechanisms or AI assistants
  • Cross-functional projects with Product, Data and Operations

Tech Environment / Stack

The official role is intentionally broad: the company wants versatile engineers, not profiles locked into one narrow language, framework or layer.

  • Full-stack software engineering across product and operations use cases
  • AI-powered assistants, automation and product intelligence
  • Large-scale e-commerce data extraction, structuring and exploitation
  • Scalable algorithms, search/recommendation-like problems and data-heavy product features
  • Production-grade systems with deployment, monitoring, maintainability and impact measurement

What You Will Do

  • Design and build robust software architectures across the stack
  • Translate product or operational needs into reliable, production-grade systems
  • Take ownership from idea to deployment and impact monitoring
  • Explore complex and sometimes undefined technical problems
  • Work closely with Product and Data teams to measure and improve impact
  • Provide technical leadership through specs, code reviews and technical discussions

What We Are Looking For

We are looking for a strong senior software engineer with a broad technical range, strong ownership and a genuine product mindset.

You may be a strong fit if you have:

  • Strong senior software engineering fundamentals and production experience
  • Experience building, shipping and improving products end-to-end
  • Full-stack spirit: ability to work across several parts of the stack, not only one narrow layer
  • Builder mindset and curiosity for user/business impact
  • Fast learner comfortable with new technologies, frameworks and ambiguous problems
  • Strong problem-solving skills with pragmatic technical judgment
  • Clear communication, humility, feedback culture and team-player mindset
  • Strong written and spoken English; French is not required

Perks & Benefits

  • Top-market compensation and equity for everyone
  • Flexible remote: Paris employees can choose office or home with no constraints
  • Coworking access and budget for employees living elsewhere
  • Work from anywhere from most countries in the world up to 3 months per year
  • Half-day each week dedicated to leveling up with AI: exploring tools, iterating and sharpening skills
  • Yearly offsite in strong locations, plus team-building events and monthly in-person gatherings
  • ClassPass contribution
  • 8-week leave paid 100% for the second parent

Practical Details

  • Salary: €80K to €100K gross per year depending on seniority
  • Contract: CDI / Permanent contract
  • Location: remote-friendly from France or Spain
  • Remote: full remote possible depending on location and profile
  • Language: English fluent required
  • French: not mandatory
  • Start date: ASAP / depending on notice period
  • Process: selective process with strong attention to ownership, technical depth, career narrative and motivation

Recruitment Process

  • Intro call with the Hiring Manager or Talent team
  • Team interview: 45-minute conversation with two team members
  • Tech assessments: live coding interview and system design interview
  • Leadership / founder stage and references depending on the process

Skills

AIData EngineeringE-commerceFrontendFull-stackProduct IntelligencePython

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