Software Engineer (Rust/C++/C/C#/Go) - CDI - Paris

Why Stockly needs you

Stockly is not a typical SaaS product . We operate a highly technical, backend-driven platform (~90% of the product’s value) where:

• Latency directly impacts revenue
• Correctness is critical
• Failure handling is part of everyday engineering

As a Backend Software Engineer , you’ll work at the very core of our platform:

• Real-time inventory synchronisation
• Order orchestration across multiple merchants
• Distributed systems under strong consistency constraints
• Integrations with complex external systems (ERP, OMS, WMS, marketplaces)

This role is for engineers who:

• Enjoy real‑world complexity
• Want end‑to‑end ownership
• Care about robustness, scalability, and business impact

What You’ll Do

Tech Stack

Rust · gRPC · PostgreSQL · AWS · Docker

Mission

As a Backend Software Engineer (Confirmed / Senior) , you will:

• Own complex backend features from design to production
• Build systems that operate at scale in real, messy e‑commerce environments
• Continuously improve the platform based on production feedback

Your Responsibilities

You will:

• Design, build, and operate core backend services for:
  • Real‑time inventory sharing
  • Order routing
  • Transactional workflows
• Own features end‑to‑end : architecture, implementation, deployment, monitoring, iteration
• Integrate with external systems (ERP, OMS, WMS, marketplaces), handling:
  • Heterogeneous data models
  • Partial failures
  • Operational constraints
• Collaborate closely with Product & Operations to turn business problems into reliable technical solutions
• Improve reliability, performance, and architecture , contributing to:
  • Incident analysis
  • Technical standards
  • Long‑term platform roadmap

Who you’ll work with

• A strong, product‑oriented engineering team
• Experienced founders and senior engineers who have already scaled complex systems
• Daily collaboration with Product and Operations to ensure what we build actually works in production

This is a deep engineering role, close to production and real business impact.

Why this role is exciting

• Backend engineering truly matters at Stockly
• Few roles offer such a direct link between code and revenue
• You’ll solve problems with no obvious solutions, under real constraints
• Every improvement helps independent retailers compete with e‑commerce giants

Your Growth at Stockly

• You can grow by:
  • Deepening your technical expertise
  • Expanding your ownership scope
  • Becoming a key contributor to platform architecture
• As Stockly scales, you’ll work on increasingly complex systems while staying hands‑on

What will help you succeed

• 2+ years of experience in backend or platform engineering (seniority is flexible - impact matters more than titles)
• Strong coding skills in at least one backend language (Rust, C++, Go, Scala, Haskell, OCaml, etc.)
• Willingness to learn Rust (you don’t need to be fluent on day one)
• Solid understanding of:
  • APIs & databases
  • Performance & observability
  • Testing & production constraints
• Ability to: turn ambiguous business needs into concrete technical solutions
• Make pragmatic trade‑offs between speed, scalability, and maintainability
• Curious, rigorous, and eager to learn from incidents and edge cases

Please think twice before applying if:

• You’re uncomfortable with complexity and uncertainty
• You strongly prefer slow‑moving, highly stable environments
• You’re not comfortable working in English
• You’re looking for a fully remote role (we are office‑first, with flexibility after ramp‑up)