Senior Python Engineer

Tenth Revolution Group; Stockholms kommun; On-site; SEK 900,000 - 1,300,000; Full time

Job summary

Tenth Revolution Group is seeking a Senior Backend Engineer to join a fast-growing, AI-native software company. You will shape backend systems, data infrastructure, APIs, and AI-driven initiatives, delivering real-world impact.

You will work in a small, high-performing team where ownership is encouraged and your ideas influence the technical direction. The role suits engineers who enjoy solving hard problems and taking responsibility for outcomes.

Qualifications

• Strong Python experience with backend systems.
• Experience building and scaling modern SaaS products.
• Strong understanding of APIs, cloud platforms, distributed systems and databases.
• Experience with data-intensive applications and backend services.
• Exposure to AI, ML, LLMs, or RAG architectures is advantageous.

Responsibilities

• Designing and building scalable backend systems used by thousands of end users.
• Developing APIs and platform services that support business-critical applications.
• Building and optimising data pipelines and distributed systems.
• Improving platform performance, scalability, observability, and reliability.
• Contributing to the adoption and integration of modern AI technologies.
• Collaborating with Product and Engineering teams to deliver customer value.
• Exploring emerging technologies to create new product capabilities.

Skills

Python

SaaS product development

APIs & Cloud

Distributed systems

Data pipelines

AI/ML awareness

Tools

PostgreSQL

Kubernetes

ArgoCD

FastAPI

Flask

LLMs/RAG

Job description

I'm currently partnering with an ambitious, AI-native software company looking to hire a Senior Backend Engineer to join a highly talented engineering team.

This is a business that has recently entered an exciting growth phase, with strong product momentum, significant investment in technology, and a real focus on applying modern AI capabilities to solve complex customer problems.

They're looking for someone who combines deep backend engineering expertise with curiosity for emerging technologies and a desire to build products that create real-world impact.

The Opportunity

This isn't a role where you'll simply pick up tickets and work within a narrow technical boundary.

You'll be joining a small, high-performing engineering team where ownership is encouraged, ideas are valued, and engineers have a genuine voice in technical direction.

You'll work across backend systems, data infrastructure, platform architecture, APIs, and AI-driven product initiatives, helping shape both the technical roadmap and the future of the product.

The environment is fast-paced, collaborative, and best suited to engineers who enjoy solving difficult problems and taking responsibility for outcomes.

What You'll Be Working On

• Designing and building scalable backend systems used by thousands of end users.
• Developing APIs and platform services that support business-critical applications.
• Building and optimising data pipelines and distributed systems.
• Improving platform performance, scalability, observability, and reliability.
• Contributing to the adoption and integration of modern AI technologies.
• Collaborating closely with Product and Engineering teams to deliver meaningful customer value.
• Exploring how emerging technologies can be used to create new product capabilities.

What We're Looking For

• Strong commercial experience with Python.
• Experience building and scaling modern SaaS or software products.
• Strong understanding of APIs, cloud platforms, distributed systems, and databases.
• Experience with data-intensive applications and backend services.
• Exposure to AI, machine learning, LLMs, RAG architectures, or related technologies is advantageous.
• Product-minded approach to engineering.
• Strong ownership mentality and ability to work autonomously.
• Comfortable operating within a fast-moving, growth-stage environment.
• Curious, ambitious, and motivated by solving complex problems.

Tech Environment

The current engineering environment includes:

• Python, FastAPI, Flask
• PostgreSQL and Data Pipelines
• Kubernetes, ArgoCD and cloud-platform technologies
• LLMs, RAG, Vector Databases and Re-ranking Systems
• TypeScript and React across parts of the wider platform

The team doesn't hire based on keywords alone. They're much more interested in strong engineering capability, learning velocity, product thinking, and the ability to adapt as technology evolves.

Why Join?

• High-impact role with genuine ownership.
• Opportunity to work on modern AI-powered products.
• Small team with significant influence and visibility.
• Strong engineering culture focused on outcomes rather than bureaucracy.
• Exposure to both technical and product decision-making.
• A chance to help build the next generation of intelligent software products.