Senior Software Developer (AI/Python)

Lightspeed; Berlin; Hybrid; EUR 50.000 - 90.000; Vollzeit

Zusammenfassung

An innovative company is seeking a talented backend engineer to join a new squad focused on AI-powered tools. In this role, you will leverage your Python expertise to build scalable APIs and systems that integrate with cutting-edge AI technologies. Collaborating with a dynamic team, you'll explore modern AI techniques and contribute to impactful projects that enhance product offerings. This position offers a unique opportunity to work in a flexible environment, where your contributions will help shape the future of AI integration within the company. If you're passionate about technology and eager to make a difference, this role is perfect for you.

Leistungen

Flexible working policy

Health and wellness benefits

Mental health online platform

LinkedIn Learning license

Volunteer day

Qualifikationen

• 5+ years of backend development experience with a focus on Python.
• Strong experience with REST APIs and system architecture.

Aufgaben

• Build and maintain backend services and APIs in Python.
• Design and implement AI-powered tools and product features.

Kenntnisse

Python

Backend Development

REST APIs

Collaboration Skills

AI Technologies

Tools

FastAPI

Flask

Docker

Kubernetes

CI/CD Pipelines

Jobbeschreibung

Hi there! Thanks for stopping by

Are you actively looking for a new opportunity? Or just checking the market? Well… you might just be in the right place!

We’re forming a new squad at Lightspeed called the Agent OC Squad, focused on building AI-powered tools and capabilities. This includes working with LLMs, agent frameworks, and other emerging AI technologies to create internal tools, extend our product suite with new AI features, and help other teams adopt AI effectively.

You’ll join a highly collaborative and innovative team of backend engineers, product managers, and designers. Your role will focus on Python backend development, building scalable APIs and systems that integrate with AI-powered services. You’ll also have the opportunity to explore and apply modern AI techniques on the job.

This is a hands-on engineering role. Prior experience with LLMs, agent frameworks, or AI APIs is a plus, but not required.

What you’ll be responsible for

• Building and maintaining backend services and APIs in Python
• Designing and implementing AI-powered tools and product features
• Collaborating with other teams to help them integrate LLMs and AI patterns
• Exploring and applying LLM capabilities such as summarization, classification, RAG, and prompt pipelines
• Writing clean, maintainable, and well-tested backend code
• Ensuring reliability, performance, and scalability of the systems you build
• Staying up to date with developments in the AI space and sharing insights with your team

Who you are

You’re excited about building practical, AI-enabled systems that make work easier and products better. You enjoy solving hard problems with clean code and clear thinking. You’re curious about AI and open to learning new frameworks, tools, and techniques.

You bring deep backend experience, work well in teams, and care about building things that are actually useful.

Requirements

• At least 5 years of experience in backend development
• Strong production experience with Python and frameworks like FastAPI or Flask
• Solid understanding of REST APIs, databases (SQL/NoSQL), and system architecture
• Familiarity with Docker, CI/CD pipelines, and Kubernetes
• Strong communication and collaboration skills
• Comfortable writing well-structured, maintainable code
• Interest in AI technologies and willingness to grow in this space

What will increase your chances

• Experience with another backend language (e.g. Java, Go)
• Exposure to LLM APIs (e.g. OpenAI, Claude), prompt engineering, or agent frameworks
• Knowledge of vector search, semantic retrieval, or document indexing
• Experience building internal tools or customer-facing AI features
• Familiarity with observability tools and performance monitoring
• Understanding of security, access controls, and API standards

What’s in it for you

• Lots of autonomy, flexible work culture with the option of working remotely or from one of our beautiful offices
• Genuine career growth opportunities within a company that's continuously expanding
• Make a meaningful impact by helping teams and customers work more effectively with AI
• Be part of a team large enough for growth yet agile enough for real impact
• Work on high-traffic products with a global user base
• Opportunity to work alongside other highly skilled engineers, learn and expand your skill set, forge wonderful relationships and make your mark within the diverse and inclusive Lightspeed culture, a true Canadian tech success story

… and enjoy a range of benefits that’ll keep you happy and healthy:

• Lightspeed share scheme (we are all owners).
• Flexible working policy.
• Mental health online platform and counseling & coaching services.
• Health and wellness benefits.
• LinkedIn Learning license (learning is always ongoing).
• Volunteer day to be able to give back to society!

To all recruitment agencies: Lightspeed does not accept unsolicited agency resumes. If we have not directly engaged your company in writing to supply candidates for a specific vacancy, Lightspeed will not be responsible for any fees related to unsolicited resumes.

Lightspeed is a proud equal opportunity employer and we are committed to creating an inclusive and barrier-free workplace. Lightspeed welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

Where to from here?
Obviously, this has to be mutually beneficial: we want you to step into a role you love, and we want to offer you a place you’re proud to come to every day. For a glimpse into our world check out our career page here.