Senior Django Engineer

Trust In SODA; Paris; Hybride; EUR 90 000 - 120 000; Plein temps

Avantages offerts par ce poste

Backend ownership of revenue system

Fast release cadence

Senior team access

Profitable company with long roadmap

Résumé du poste

Trust In SODA seeks a Senior Django Engineer to own the backend for pricing and subscriptions that drive revenue. Based in Paris with hybrid/remote options, you will work closely with product and frontend engineers to ship features quickly and measure impact.

Required: 5+ years Django/DRF, strong PostgreSQL/MySQL, production SaaS billing (Stripe/RevenueCat), and fluent English. You’ll own architecture and shipping decisions with high ownership from day one.

Qualifications

• 5+ years hands-on Django and Django REST Framework experience.
• Experience with SaaS subscription and billing infrastructure (Stripe and/or RevenueCat).
• Strong ownership and a pragmatic, ship-fast mindset.
• Fluent English with good cross-functional collaboration.

Responsabilités

• Architect and deliver the pricing/subscription backend used across mobile, web, and API.
• Optimize endpoints for latency and scalable growth.
• Build backend for pricing and paywall experiments with feature flags and measurement.
• Design endpoints in collaboration with frontend engineers using OpenAPI specs.
• Monitor releases in Datadog and act on real usage data.

Connaissances

Django & DRF

Relational databases

SaaS billing (Stripe/RevenueCat)

Ship-fast ownership

English communication

Outils

OpenAPI

Description du poste

Senior Django Engineer – Payments & Subscriptions | Contract | Paris Based, Hybird/Remote | Immediate Start

THE OPPORTUNITY

A client of ours is building out its Product Growth & Monetisation team. There is currently no dedicated backend engineer in this area, and it is blocking parts of the pricing and growth roadmap – so this is a high-impact, high-ownership seat from day one.

You would own the backend of the pricing and subscription system that sits at the core of the company's revenue, working across every product surface and directly with product and frontend engineers to ship and measure changes fast.

Why it is worth a look

• Sole backend owner of the revenue system – your decisions ship, no queue of engineers ahead of you
• Ships multiple times a week, monitored in Datadog; build, ship, measure, iterate
• Small senior team, direct line to the hiring manager and technical lead
• Profitable company, long roadmap – genuine extension prospects

WHAT YOU WOULD OWN

• Architecture and delivery of the pricing/subscription system used across mobile, web and API
• Optimising existing endpoints – driving down latency and keeping the system scaling as usage grows
• Building the backend for pricing and paywall experiments – assignment, feature flags, measurement
• Designing endpoints in direct collaboration with frontend engineers, with OpenAPI specs and docs
• Monitoring your own releases in Datadog and making decisions from real usage data

WHAT THEY ARE LOOKING FOR

• 5+ years hands-on Django and Django REST Framework (a hard requirement, not "Python with some Django exposure")
• Relational databases at real scale: schema design, query optimisation, and zero-downtime migrations on PostgreSQL/MySQL databases of 100GB+
• Production experience with SaaS subscription and billing infrastructure – Stripe and/or RevenueCat
• Pragmatic, ship-fast mindset and strong ownership – comfortable making product and technical calls
• Fluent English and clear cross‑functional communication

Strongly preferred

• A/B testing, experimentation, or feature‑flag experience (LaunchDarkly, Statsig, GrowthBook, Optimizely, Split, or equivalent)
• Some FastAPI knowledge alongside the core Django
• Background in a high‑volume consumer subscription product