Senior Site Reliability Engineer

PhotoRoom SAS

Job Overview

Location

Paris | Remote

Job Type

Full-time

Full Job Description

📋 Description

• Own and evolve the Machine Learning Inference Infrastructure powering millions of AI requests daily across GPU-based systems at Photoroom.
• Design and build cloud-agnostic infrastructure solutions to support current and future AI workloads with varying request durations from milliseconds to several seconds and payloads up to tens of megabytes.
• Partner closely with ML, Product, Web, and Mobile teams to ensure reliability, performance, and scalability of AI services as the company scales globally.
• Build and improve systems for load balancing, autoscaling, queuing, and workload orchestration to maintain consistent performance under rapidly growing demand.
• Manage the full infrastructure lifecycle including architecture, implementation, monitoring, optimization, and incident response using tools like Datadog.
• Monitor production systems, analyze usage patterns, and make infrastructure decisions based on real-world performance and direct user impact.
• Ensure resilient, redundant infrastructure capable of handling failures gracefully while maintaining high availability and low latency for real-time backend systems.
• Optimize infrastructure for cost-efficiency without compromising performance or reliability under high-scale, variable workloads.
• Collaborate cross-functionally to identify bottlenecks, streamline deployment workflows, and enable faster iteration across engineering teams.
• Participate in the team’s on-call rotation to maintain platform reliability and respond to critical incidents.
• Work in a remote-friendly environment with monthly in-person office visits to Paris, fully reimbursed by the company.
• Contribute to a collaborative engineering culture by sharing knowledge, learning from peers, and fostering a high-trust, high-impact environment.
• Support workloads that vary significantly in duration and resource requirements, requiring nuanced infrastructure tuning and adaptive scaling strategies.
• Operate in a high-growth startup environment with rapid iteration cycles and evolving technical requirements.
• Maintain a pragmatic approach by leveraging existing tools and frameworks rather than reinventing solutions, prioritizing business impact and speed.
• Fluently communicate in English to collaborate effectively with global engineering and product teams.

🎯 Requirements

• Experience designing and operating large-scale distributed systems with high availability and reliability requirements.
• Hands-on experience with load balancing, autoscaling, queuing systems, and traffic management at scale.
• Proven track record working on low-latency, real-time backend systems with performance and throughput optimization.
• Experience building resilient, redundant infrastructure capable of handling failures gracefully.
• Experience deploying and operating containerised workloads at high scale while maintaining a strong developer experience.
• Experience supporting workloads with highly variable durations, from milliseconds to several seconds.

🏖️ Benefits

• Work flexibly from one of the core countries: France, Germany, Italy, Spain, Poland, UK, Ireland or Portugal.
• 30 days annual leave plus local public holidays.
• Competitive equity package with stock options/BSPCE.
• €1,000 one-time home office grant OR €400 per month co-working space stipend.
• €1,000 annual learning and development budget for training, courses, books, and professional development.
• Private health insurance and access to personalised mental health support via MokaCare.

Skills & Technologies

Datadog

Senior

Remote

€70k-100k

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PhotoRoom SAS

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About PhotoRoom SAS

PhotoRoom SAS provides AI-powered photo editing software that automatically removes backgrounds from images and generates professional-quality visuals for e-commerce sellers, marketers and creators. Founded in Paris in 2019, the company offers mobile and web applications that replace complex editing workflows with one-tap tools for background removal, object cutouts, studio lighting effects and batch processing. Its technology serves millions of users who need product photography for online marketplaces, social media content and marketing campaigns without requiring traditional photo editing skills or expensive equipment.

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