Founding Engineer (€90,000–€130,000 + Equity)

nineDots.io; Dublin; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Equity

Hybrid work model

Job summary

NineDots.io in Dublin is seeking a Founding Engineer to shape an AI-assisted, self-service AdTech platform. You will own features from concept through production, work directly with the founder, and influence architecture and engineering culture in a hands-on role.

This senior IC position emphasizes shipping production software, high-throughput and low-latency systems, and building AI-enabled configuration and reporting experiences with equity upside as the company scales.

Qualifications

• Experience shipping production software.
• Able to start with an unclear spec and define a solution.
• Comfortable with high-throughput, low-latency systems.
• Proficient in using AI coding tools to improve development.

Responsibilities

• Own features from idea through production and iteration.
• Turn direction into reliable software used by customers.
• Develop configuration, reporting and self-service experiences.
• Build AI-assisted workflows for complex processes.
• Extend integrations with demand and supply partners.
• Engage with customers and publishers on product and integration challenges.
• Shape architecture and engineering standards as the team grows.
• Champion AI-assisted development practices.

Skills

Production software

AI coding tools

High-throughput systems

Hands-on coding

Tools

Claude Code

Job description

€90,000–€130,000 + Equity | Dublin | Hybrid – 3 days onsite

What’s in it for you?:

Ownership: Take ideas from concept through to production, owning features across design, development, deployment and iteration.

Influence: Work directly with the founder and help shape the product, architecture and engineering culture.

Product: Turn a powerful but technically configured AdTech platform into an intuitive, AI-assisted, self-service product.

Scale: Build on infrastructure processing billions of advertising requests every day.

AI-native engineering: Use tools such as Claude Code as a genuine part of the development process, not as an occasional add-on.

Equity: Share in the upside of an early-stage company entering its next phase of growth.

The Opportunity:

You’ll be joining a growing AdTech company helping advertisers connect with publishers across Connected TV and Digital Out-of-Home advertising.

Today, parts of the platform are configured using raw JSON. The company wants to develop a far more intuitive, AI-assisted and self-service experience that allows customers to configure the platform, manage integrations and understand their reporting more easily.

As Founding Engineer, you’ll take a leading role in making that happen.

This is a senior individual-contributor position rather than a people-management role. You’ll work directly with the founder, collaborate with an experienced engineering team and have considerable autonomy over how products and features are designed and delivered.

The Role:

You’ll own meaningful areas of the product from end to end; understanding the problem, designing the solution, shipping it into production and improving it based on real customer feedback.

You’ll help build the configuration and reporting experiences used by publishers, introduce AI-assisted and self-service functionality, and extend the platform’s integrations with demand and supply partners.

You’ll also have direct exposure to customers. That could involve understanding how they use the platform, supporting a technical integration or translating a recurring customer problem into a better product decision.

Beyond the code itself, you’ll help establish the technical standards and working practices of a growing Dublin engineering team. The company is deliberately building an AI-native engineering culture, so agentic development tools such as Claude Code will be central to how you work.

You’ll be responsible for:

• Owning features from initial idea through to production and ongoing iteration.
• Turning product direction into reliable software used by real customers.
• Developing the platform’s configuration, reporting and self-service experiences.
• Building AI-assisted workflows that simplify technically complex processes.
• Extending integrations with advertising demand and supply partners.
• Working directly with customers and publishers on product and integration challenges.
• Contributing to architecture and wider technical decisions.
• Helping establish engineering standards and culture as the Dublin team grows.
• Championing AI-assisted and agentic development practices.

You’ll be a good fit if you:

• Have a strong track record of shipping production software.
• Enjoy owning problems rather than working from fully defined tickets.
• Think about why a feature is being built and how it affects the person using it.
• Can begin with a clear problem and an incomplete specification.
• Are comfortable making technical decisions and explaining the reasoning behind them.
• Understand the considerations involved in high-throughput, low-latency systems.
• Already use AI coding tools seriously and can demonstrate how they improve your development process.
• Want to remain hands-on while having genuine influence over product and technical direction.

Experience in an early-stage startup or with distributed, high-volume systems would be useful.

AdTech knowledge, including programmatic advertising, RTB, OpenRTB, Prebid or VAST, is a bonus, but it is not essential.