Software Engineer - Python

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Conversation. It's the thread between our product and our people. The tool that enables us to forge relationships through compassion and expertise. To find the connection between our differences. It keeps us close together across borders and backgrounds and helps us create our shared vision.

Rasa means tight-knit. We get to the point and have the courage to ask 'why?'. Because through relentless experimentation, passion, and vision, we're transforming the way people interact with organizations through AI.

That's Rasa. That's our message.

Join us and add yours.

SUMMARY

We are looking for a Senior Software Engineer with deep Python expertise to join our Engineering team. You'll be a core builder on Hello Rasa — our interactive developer playground that lets engineers prototype AI agents powered by CALM (Conversational AI with Language Models) in minutes, without any setup. Think templates, a built-in copilot, a real-time inspector, and full code access — all in the browser.

This is not a maintenance role. You'll shape the product experience from the ground up: driving architecture decisions, owning features end-to-end, and working closely with Engineers, Product Managers, and Designers. You'll report to an Engineering Manager. We build in Python, with additional tooling across Node and React.

Full-time · 100% remote · Location: Serbia

This is a remote position, but we cannot hire outside of Serbia for this role.

Rasa cannot assist with work authorization (visa sponsorship) for this position.

ABOUT THIS ROLE

As a Senior Software Engineer on the Hello Rasa team, you won't just write code — you'll shape how it gets built. You'll lead architecture decisions, push on quality, and take full ownership of complex, user-facing features. Concretely, you'll:

Lead architecture and technical design for major features in Hello Rasa — the developer playground that gives engineers a fast, code-first path into building production-grade AI agents with CALM

Drive product discovery alongside PMs and Designers — proactively identifying problems and shaping solutions before they're handed to you

Make decisions under ambiguity: break down complex, uncertain projects into clear milestones and move the team forward without waiting for perfect requirements

Set the standard for code quality through rigorous code reviews, sharp documentation, and a sustained commitment to engineering excellence

Navigate and improve our tech stack: Python 3, Fly.io, Redis, RabbitMQ, Postgres, GitHub Actions, AWS, Kubernetes, and related frameworks

Balance pragmatism and correctness: solve user problems without over-engineering; know when to optimize and when to ship

ABOUT YOU

• 5+ years of professional Python experience, with a strong track record of designing and shipping production-grade systems

  Deep experience building complex, scalable, and highly reliable distributed systems

  Demonstrated ability to own technical decisions — not just implement them

  Strong product instinct: you think in terms of user outcomes and developer experience, not just technical correctness

  Comfortable operating in a fast-moving, product-led organization where requirements evolve

  Proven track record of mentoring engineers and raising the technical bar of a team

  Excellent communicator — you can align stakeholders, write crisp technical specs, and translate complexity for non-engineers

  Based in Serbia, collaborating with teammates across Serbia, Germany, and the UK

  Nice to have

  Experience with conversational AI, LLMs, or AI agent frameworks

  Familiarity with CALM or the Rasa platform

  Experience building developer tools, playgrounds, or SDKs

  Familiarity with event-driven architectures (RabbitMQ, Kafka)

  Contributions to open source projects

  We describe the background we imagine would best fit the role. Even if you don't meet every requirement but are confident you're up for the task — we absolutely want to get to know you.

  MEET YOUR TEAM

  You'll be joining Team Swift — a cross-functional squad of 8 people building Hello Rasa, Rasa's interactive developer playground. The team spans Serbia and Germany, and includes 4 full-stack engineers, 1 ML engineer, 1 Staff QA, 1 PM, and 1 Staff Designer.

  Team Swift sits within Rasa's broader Engineering organization and works in a product-led, iterative way — close collaboration between engineers, design, and product is core to how the team operates. You'll be working on a product that is the entry point for developers into the Rasa ecosystem, with direct impact on how engineers first experience conversational AI with CALM.

  WHAT YOU CAN EXPECT FROM US

  • Flexible hours and a dedicated remote budget

    A stipend for professional development & 6 paid education days to help you grow within your role

    26 days of PTO + paid sick leave + paid public holidays

    A MacBook and other tech to help you do your job

    Regular remote team events and an annual company-wide offsite

    Private Health optional

    Equity options

    You can find more information about our benefits per location here: Rasa Perks & Benefits

    ABOUT US

    Rasa is a leader in generative conversational AI, enabling enterprises to build and deliver next-level AI assistants. Merging a state-of-the-art engine with a user-friendly no-code UI, Rasa offers an open and adaptable platform that perfectly aligns with business logic. This innovative approach makes Rasa a reliable and trusted choice for enterprises seeking to enhance customer interactions while reducing costs. Rasa is privately held with funding from StepStone, PayPal, Accel, Andreessen Horowitz, Basis Set Ventures, and others. The company was founded in 2016 and is remote-first with a global presence.

    FREQUENTLY ASKED QUESTIONS

    You can find answers to FAQs from candidates about this role on our Senior Software Engineer FAQs Sheet.

    Rasa is an equal opportunity employer. We are still a small team and are committed to growing in an inclusive manner. We want to augment our team with talented, compassionate people irrespective of race, color, national origin, sex, physical or mental disability, or age.

    Please be mindful of the hiring location(s) listed.

    You must be located in and a resident of the location(s) listed for us to proceed with your application.