Tessl is a Series A startup based in London, founded by Guy Podjarny. The company has raised over $100m in funding from investors including Index Ventures, Accel, GV and Boldstart. In June 2025, Tessl was ranked #2 in Sifted EU’s 2025 B2B SaaS Rising 100.

At Tessl, we believe AI will truly transform software development. AI Native Developers will define features, architecture and workflows in specs, not code, used to guide the work of AI agents. We are shaping this new paradigm, and building the pioneering platform for AI Native Development, and leading the dev movement and ecosystem that drive it.

As an early member of our team, you’ll have the opportunity to shape the future of how software is created and maintained. The easiest way to understand our vision is to visit ainativedev.io our developer community website, dedicated to AI Native Development, which is the go-to place for developers navigating the evolving AI-driven software landscape.

Overview of role

We’re looking for a Senior Developer Advocate with a passion for AI developer tools. In this role, you’ll primarily be an internal user of our product, providing feedback to our engineering team and creating and promoting high-quality Tessl-centric content that helps developers better understand and utilize AI Native Development practices with our product. A core part of this role is to collaborate with the community and industry vendors to showcase some of the best practices, as well as nurturing our users to share their own thoughts and creations.

Key Responsibilities:

• Active User: Be immersed in the Tessl product and community, learning firsthand to create compelling learning experiences for internal and external groups to follow.

• Content Creation: Write detailed articles, tutorials, docs, videos, and guides about Tessl as an AI-powered development tool, focusing on clear, actionable, and practical insights.

• Community Collaboration: Engage with users and partners to help and highlight their integrations and successes with the product.

• AI Developer Tooling: Play with, test, and explore various AI-powered tools for developers.

• Developer Relations: Participate in various Developer Relations activities, including webinars and podcasts, and engage with the developer community through forums and social media platforms.

What You’ll Need:

• Passion for AI: A natural curiosity and love for exploring and testing AI-powered development tools.

• Strong Writing Skills: Ability to write clear, concise, and engaging technical content that appeals to developers.

• Communication Skills: Ability to work with internal teams, vendors, and community members to create and curate content.

• Development Skills: Familiarity with software development and modern dev tools, and an eagerness to learn more. No need to be an expert, but some hands-on experience is preferred.

• Growth Mindset: Embrace challenges and seek opportunities for learning and improvement.

Nice to Have:

• Community Engagement: Experience (or interest) in working with open-source communities, as well as via Discord etc

• Adaptability: Ability to adjust to changing priorities and thrive in a fast-paced, dynamic environment.

Salary and benefits

Office: Our brand new 10,000 sq. ft office is in the AI hub of Kings Cross, London. We have generous catering and have regular social events such as team lunches, drinks and more. We require all staff to be in our London HQ at least 3 days a week on our anchor days of Monday, Tuesday and Thursday.

Salary: We offer a competitive salary commensurate with experience and skills and employee share options.

Benefits: 25 days holiday, health insurance, including dental and vision, which extends to partners and dependents, as well as a company-matched pension. We also provide a commuting stipend for those who live outside London, and a cycle to work scheme.

Application Process

Here’s an outline of what you can expect during our interview process:

• Initial screen with our Operations team

• DevRel discussion lead by our Head of Developer Relations

• AI tooling discussion with a member from our DevRel team

• Take-home task followed in-person presentation with IT skills

• Final interview with Tessl CEO

Throughout the process, if you have any specific requirements or need adjustments, please let us know: we’re happy to accommodate.

We care deeply about the warm, inclusive environment we’re building at Tessl and we value diversity – we welcome applications from those typically underrepresented in tech. If you like the sound of this role but are not totally sure whether you’re the right person, do apply anyway!

Learn how we think and work

• On Tessl, The AI Native Development Startup

• Announcing Our $125M Series A for AI Native Software Development

• On the Podcast: Intercom Co-Founder Des Traynor on AI Autonomy & what AI Native means