Senior Back-End Software Engineer

🕒 April 12

🏢🏡 Paris – Hybrid

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 45%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Kolecto

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2023

☁️ SaaS

💳 Fintech

🤝 B2B

SaaS • Fintech • B2B

Kolecto is a French SaaS platform that centralizes and automates financial and administrative workflows for micro‑businesses, freelancers, TPEs and SMEs. It collects and processes supplier and customer invoices, supports compliant e‑invoicing, aggregates bank accounts for real‑time cash visibility, automates payments and pre‑accounting tasks, and integrates with accounting/CRM tools. Kolecto offers tiered subscription plans, bank partnerships (Crédit Agricole, LCL), data hosting in France and expert onboarding and support.

📋 Description

• Design, develop, and maintain robust, scalable backend solutions • Contribute to the evolution of the existing architecture and propose improvements • Collaborate with frontend, product, and mobile teams • Mentor and provide technical guidance to junior developers • Ensure code quality through code reviews and automated testing • Stay up to date with emerging technologies

🎯 Requirements

• Significant experience (7+ years) in backend development • Strong knowledge of development best practices (design patterns, testing, documentation) • Modern backend technologies (TypeScript, Node.js) • Comfortable with cloud environments (AWS, Azure, or GCP) • Strong skills in code quality, automated testing, and performance optimization • Ability to provide technical leadership to a team • Experience in a startup environment, ideally in fintech, is a strong plus • Serverless experience on AWS (optional) • Interest in DevOps

🏖️ Benefits

• Up to 3 days of remote work • Annual RTT policy (8–10 days per year) • Digital meal vouchers valued at €11.52 per working day, 60% covered by Kolecto • Alan Blue health insurance with 70% employer contribution (covered by Kolecto)