Senior Backend Engineer

bsport; Paris; Hybrid; EUR 72,000 - 115,000; Full time

Benefits offered by this job

Attractive compensation package

Work-Life harmony

Work from anywhere (up to 15 days rem

Exclusive HelloCSE membership

Diverse, multicultural team

Job summary

bsport is hiring a Senior Backend Software Engineer in Paris. You will lead the design of high-volume data services and an AI-enabled data layer, building core backend capabilities and authentication/permissions systems for a rapidly growing platform serving millions of users.

You will collaborate with Data, Product and DevOps teams, implement robust code, and drive observability and performance improvements across the stack, in a hybrid work setup.

Qualifications

• Proven experience with Python and Django is required or a strong plus.
• Ability to design scalable backend services and data models.
• Experience with data-driven, API-first architectures at scale.

Responsibilities

• Lead design of services and event-driven architectures for high-volume data.
• Write robust, maintainable code with CI/CD practices.
• Provide technical leadership and mentor junior engineers.
• Collaborate with Data, Product and DevOps teams to deploy cutting-edge solutions.
• Monitor and optimize backend performance with observability tools.
• Contribute to cross-team initiatives across the backend and devops stack.

Skills

Python

Django

Data modeling

Backend architecture

REST APIs

Tools

Django Rest Framework

PostgreSQL

AWS

Kafka

RabbitMQ

Grafana

Job description

Salary range: €72.000 - €115.000

We are bsport. The place to be!

bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success.

Since we launched in 2019, we have already achieved the following:

• We’ve built a community of over 7 million users
• In December 2024 wehave finalisedthe biggest Series B(€30 million)
• Grown our team to more than 200 employees
• Experienced strong worldwide growth (75% YoY) and rapid geographical expansion (+20 countries)

We’re continuing to grow to become the #1 tech partner for boutique studios in Europe and the rest of the world!

Join us to write the next chapter of your career!

About the role:

Joining our "Core" team means playing a crucial role in shaping the success of our engineering department by providing core data and capabilities to the different teams.. Your team’s focus areas will include:

• Administrating and providing core data models to the different bsport teams (client, studio and locations, franchise, namespaces overall
• Develop the building blocks of our AI semantic layer, to power every other team AI-native features
• Provide and maintain core capabilities to other bsport teams like Authentication, our Permission system or a way for large franchise to administrate their studios.
• Manage our Buyables offering by managing our subscription, webshop & retails, VOD and pass architecture.

What will be your impact:

As a Senior Backend Software Engineer, you will:

• Lead the design of services and event-driven architectures that handle high-volume data and ensure a balance between immediate product requirements, technical feasibility, and long-term scalability.
• Write robust, efficient, and maintainable code and implement best practices for code reviews, testing, and continuous integration & delivery.
• Provide technical leadership and share knowledge with less experienced engineers and foster a culture of continuous learning, collaboration, and innovation.
• Work closely with Data, Product, and DevOps teams to deploy and maintain cutting-edge solutions and align technical strategy with business goals, ensuring each release adds measurable value.
• Continuously monitoring and improving the performance of backend services using Grafana, Prometheus, ELK, and Sentry.
• Participate in our cross-team Backend & DevOps "squad," providing innovative solutions and improvements to our stack (Grafana, Kibana, PostgreSQL, AWS, RabbitMQ, Kafka, Django, Django Rest Framework), advocating for best practices in observability, monitoring, and alerting to ensure systems run at peak efficiency.

You would be great fitif:

• You have substantial experience Python (Django is a plus)
• You are confortable on challenging a implementation from the data model diagrams to the networking
• You have experience working at scale, serving dozen of millions of users
• You are, of course, professionally proficient in English
• You are not afraid of taking ownership to build exceptional products, including on design and product decision.
• You love domain-driven development, and understands interface purity has its limit.
• You want to lead across boundaries, and scale your impact to the organisation
• You understand both how powerful and how dangerous AI-assisted workflows can be, and want to redefine the barriers of what is doable

Diversity is one of our most valuable assets, and we are committed to fostering an inclusive environment where everyone can contribute their best work. We welcome applicants from all backgrounds, identities, and experiences to help us build a more inclusive, equitable team.

What We Offer

We believe great work comes from happy, supported people-that’s why we offer meaningful perks designed to promote balance, growth, and connection.

• Attractive compensation packageCompetitive salary packages based on your experience and role.
• Work-Life harmonyHybrid model with 3 days per week in the office
• Work from anywhereEnjoy up to 15 days of remote work from abroad each year.
• Exclusive perksStay active with a specially discounted HelloCSE membership.
• Diverse fun loving teamMulticultural colleagues, after-work events, team-building & more.