Senior Backend Engineer (API & Integrations)
About Us
At Colossyan, we are helping modern teams scale training with AI video.Top companies like Novartis, Paramount, Continental, and WSP use Colossyan to create engaging video content from text and documents, with significant time and cost savings compared to traditional video production. Nearly 1 million videos have been created using Colossyan, and we’ve been recognised as a G2 Leader in multiple product categories.
Here is an overview of what you can do with Colossyan:
- Create videos from text, with narration from our professional AI avatars
- Turn documents, presentations and prompts into engaging videos
- Translate your video content to 80+ languages in seconds
- Personalize your videos by creating a digital avatar of yourself
- Make training interactive with features like branching, quizzes, and more
We take great pride in fostering a culture of growth within our rapidly-growing, international team of over 50. Our organization thrives on a deep-seated passion for technology and its incredible potential, with a strong commitment to the personal and professional development of each team member.
To learn more about our product features, visit colossyan.com.
About the Job
Partnerships are a key pillar of Colossyan's success, and our API is central to how we integrate with other platforms. We are looking for a Senior Backend Engineer to take full ownership of our API and strategic integrations, ensuring they are seamless, scalable, and business-critical. This is a high-impact role offering significant exposure to senior leadership, customers, and external partners. You will be at the heart of Colossyan's expansion, working closely with sales teams and key stakeholders to drive adoption and innovation in our integrations.
What You’ll Be Responsible For
- Full ownership of Colossyan’s API, ensuring its scalability, reliability, and efficiency.
- Leading the development and management of integrations with strategic partners.
- Working closely with sales and customer teams, joining API-related sales calls to explain capabilities and limitations.
- Managing custom development needs for partners, ensuring seamless integration and ongoing support.
- Collaborating with cross-functional teams, including sales, engineering, and external partners, to drive API adoption and success.
- Providing technical guidance and best practices to ensure high-quality API development and integrations.
What We’re Looking For
- 5+ years of backend development experience, with full ownership of an API.
- Proven track record of building and managing successful integrations with third-party platforms.
- Experience working with publicly running integrations, such as Zapier or Make.com.
- Strong ability to communicate technical concepts in plain English to non-technical stakeholders.
- Fluency in Hungarian is a plus, but English proficiency is essential due to customer interactions.
- Experience with TypeScript and Node.js.
- Proficiency in any API framework
What we offer:
- Stock options: We want everyone to feel motivated to do their best work, which is why we’re all owners.
- Remote work: Enjoy extra flexibility with one full week of remote work per quarter.
- Free lunch Thursdays: Build team connections over complimentary weekly lunches, available for both in-office and remote employees.
- Wellness Wednesdays: We know working at a startup can be mentally tough, which is why we offer monthly expert-led sessions on meditation, yoga, and other well-being practices.
- Great office location: Work from our brand new, pet-friendly office designed for comfort and team collaboration in the center of Budapest (5th district).
- Birthday time off: Celebrate your birthday with an additional paid day off, if it falls on a weekday, separate from your regular vacation allowance.
- Cutting-edge AI technology: Be at the forefront of AI innovation, working directly with state-of-the-art AI technologies that form the core of our product.
- Impact: As a rapidly expanding Series A startup, your contributions will have an immediate impact on our global development!
- Private healthcare: Access private healthcare through the Medicover Blue package. We understand that everyone does their best work when they’re happy and healthy.
At Colossyan, we believe that diversity drives innovation and inclusion fosters a sense of belonging. We are committed to creating a workplace where everyone feels valued, respected, and empowered to bring their authentic selves to work.
We actively seek to build a diverse team and encourage applications from candidates of all backgrounds and beliefs to apply to our open positions.
We strongly encourage individuals from underrepresented and/or marginalised identities to apply. If you need any accommodations for your interview, please email recruitment@colossyan.com
- Department
- Engineering
- Locations
- Budapest
- Remote status
- Hybrid
About Colossyan
Colossyan is an AI video platform that transforms how modern teams learn and communicate by turning text, presentations, and documents into engaging, avatar-led training videos.
Traditional formats like static presentations and text-heavy manuals are no longer enough. Today’s teams expect video - content that’s personalized, visual, and interactive. Colossyan makes it simple to create, with no editing skills or expensive production needed.
Leading companies like Novartis, Paramount, and WSP use Colossyan to create onboarding, training, and communications content that’s faster and more cost-effective - but most importantly, content that gets watched, understood, and remembered.
With interactive AI avatars, voiceovers, and support for over 100 languages, Colossyan helps organizations deliver scalable video experiences that engage teams across departments and borders.