Senior Backend Engineer

WeWard SAS is seeking a Senior Backend Engineer to join the Growth Squad in Paris. You will design, develop, test, and deploy APIs and backend processing with a strong ownership mindset, and lead the evolution of Echo for scalable campaigns. You’ll collaborate with PMs to scope work and mentor junior engineers.The role sits in a hybrid setup, with two...

Onyx-Conseil recherche un expert backend pour concevoir l’architecture des agents autonomes et les systèmes distribués au sein du Centre d’excellence. Vous définirez les interfaces, les microservices asynchrones et les flux de données, en assurant une intégration fluide avec les outils LLM et les environnements d’IA d’entreprise.Le poste demande...

This role is based in Paris as the whole team is here, 3 days / week at the office.You don't have to match 100% of the requirements. If you believe you're a strong fit, we'd love to hear from you.We just raised $35M in Series A, if you join Tsuga you will experience a strong growth.About the role & the teamYou will join the “central team” composed of 4...

As this role is very specialised we are open to hire talented engineers wherever they might be in Europe and UK trough an employee of record contract. You don't have to match 100% of the requirements. If you believe you're a strong fit, we'd love to hear from you. We just raised $35M in Series A, if you join Tsuga you will experience a strong growth. About...

Spendesk is seeking a Senior Software Engineer to join the Wallet squad within our Payment Groups, driving reliable, scalable financial services for finance teams. The role is backend-heavy (about 70% backend, 30% frontend) and involves ownership from discovery through deployment across international, multi-entity use cases.You will shape squad directions,...

Hi there! About us WeWard is the app that rewards you for walking and turns everyday steps into real-life rewards, connections, & positive impact! Our mission is help people move more, feel better, and make movement meaningful. Today, we are trusted by 30M+ users worldwide, with a fast-growing, international team and offices in Paris and New York. Our...

MonDocteur is seeking a Senior Software Engineer to enhance the Patient Online Booking feature. Responsibilities include defining features, leading technical visions, and ensuring scalability. Ideal candidates should be backend experts in Java with knowledge of Ruby on Rails, and possess a user-first mindset. The position offers health insurance, mental...

Diabolocom, a leading AI-first cloud contact centre provider, seeks a Senior Backend Software Engineer for the Voice Squad. You will design and implement scalable backend services, focusing on distributed call handling and system reliability in a fast-growing environment.Bring 7+ years of software development experience, 3+ years with Java/Kotlin, and strong...

Swan is seeking a Software Engineer to join its tech team of 70+ for a multi-month project. The engineering team spans software developers, infrastructure, devops, QA and security, with a focus on a reactive architecture.You will collaborate with the product team to design the bank-by-API, optimize backend performance, and ensure adherence to architecture...