Senior Backend Engineer, Engineering Scalability at Hotjar

We're looking for an enthusiastic and resourceful software engineer, passionate about building Hotjar foundational systems and infrastructure, someone who loves being part of a team, whilst enjoying the autonomous nature of working remotely.

Working as part of a fully remote squad in the Engineering Enablement tribe, your role will be centered around engineering core systems to serve the scaling needs of our product. We are looking for people with strong software engineering fundamentals, experienced with Python and with high throughput backend systems, networking, message queues and data processing technologies.

What you will do:

• Own backend services end to end, from creating the first RFC to supporting them in production
• Create a platform for backend services, by leveraging our existing stack (Traefik proxy, Kafka, Kubernetes) or by introducing new ideas and models for fast onboarding and iteration
• Dive into event-based architecture patterns and abstract them to make it easy to adopt our message bus stack
• Engineer a scalable file storage system capable of handling 150+ million new files per day
• Optimize the way we schedule services on Kubernetes
• Maintain our CDN and routing components with performance and simplicity in mind
• Optimize the way we distribute backend tasks using messaging queues - Celery is our default now
• Help debug complex distributed systems issues
• Help product squads in an hands-on way when extracting or creating new backend services
• Create documentation and guidelines for our standards, so teams can understand what's running under the hood and how to debug or perform fast experiments with their services
• Leverage your expertise to provide feedback during code reviews or in RFC documents and design proposals

Requirements:

• 5+ years background in building and maintaining high throughput web services or backend systems
• 5+ years demonstrable experience with Python
• Familiar with the use of databases and message brokers/queues at scale - PostgreSQL, Redis, ClickHouse, Kafka, RabbitMQ are some of the main technologies we use
• Familiar with public cloud infrastructure - we deploy everything on AWS, but if you have experience with GCP or Azure that’s fine too.
• Experience with Linux and system programming a big plus
• Desire to work in a respectful, transparent, and collaborative work environment, following Hotjar’s company values, culture and ways of working.
• Must submit to a background check confidentially processed by our third-party.

Compensation Range:

• The compensation range for a team member in this role is €80,000 to €105,000 annually where the offer typically falls in the range of €80,000 to €90,000.