Senior Full Stack Engineer

nineDots.io; Dublin; Hybrid; EUR 90,000 - 110,000; Full time

Job summary

nineDots.io in Dublin is seeking a Senior Full Stack Engineer to build and scale modern AI-powered applications. You’ll own backend (Python) and frontend (React), design scalable APIs, and integrate AI agents and workflows, shipping production-grade solutions in a fast-moving product team.

The role blends hands-on coding with architectural influence, mentoring peers, and setting engineering standards. Expect hybrid work with three days in Dublin city centre; you’ll collaborate with product

Qualifications

• 5+ years in full-stack engineering roles.
• Strong Python experience (FastAPI, Django or Flask).
• Advanced React.js skills (hooks, state management, TS).
• Experience building RESTful APIs and microservices.
• Exposure to AI/ML tools (LLMs, LangChain).
• Experience with cloud platforms (AWS/Azure/GCP).
• Knowledge of Docker, Kubernetes and IaC.
• Strong fundamentals in data structures, algorithms and system design.
• Experience with CI/CD and automation.
• Comfortable in agile, product-focused environments.
• Mentoring experience or contributing to engineering best practices.

Responsibilities

• End-to-end development of full-stack applications (Python + React).
• Design and implementation of scalable APIs and microservices.
• Integration of AI agent systems and intelligent workflows.
• Real-time monitoring, logging and performance tracking systems.
• Technical direction and contribution to architecture decisions.
• Code quality, best practices and engineering standards.
• Mentoring and knowledge sharing within the team.

Skills

Full-stack

Python

React

APIs

AI tools

Cloud

Docker/K8s

Algorithms

CI/CD

Mentoring

Tools

FastAPI

Django/Flask

LangChain

LLMs

AWS/Azure/GCP

Job description

Salary: €90-€110k & strong benefits package

Ownership: Build full-stack systems end-to-end, from architecture through to production

Impact: Develop AI-powered applications used by global enterprise clients

Tech: Work hands-on with Python, React and modern AI tooling (LLMs, agents, APIs)

Environment: Product-focused engineering team delivering real-world AI solutions

Growth: Join a global data & AI company investing heavily in innovation.

You’ll be joining a high-impact engineering team within a global AI business, building scalable applications that bring intelligent systems into production. As green-field as it gets in a tech giant!

The Role:

This is a Senior Full Stack Engineering role focused on building and scaling modern applications powered by AI.

You’ll work across backend, frontend and AI integrations, designing systems, influencing technical direction, and delivering production-grade solutions.

You won’t just be coding to spec, you’ll be solving complex problems, making technical decisions, and helping define how AI is embedded into products.

The company places a huge emphasis on growing the team’s capabilities through mentoring to become the centre of excellence for what they do globally.

What You’ll Own:

• End-to-end development of full-stack applications (Python + React)
• Design and implementation of scalable APIs and microservices
• Integration of AI agent systems and intelligent workflows
• Real-time monitoring, logging and performance tracking systems
• Technical direction and contribution to architecture decisions
• Code quality, best practices and engineering standards
• Mentoring! Everyone’s expected to contribute to it in some way

What You’ll Be Doing:

Full Stack Development

Build and maintain applications across backend (Python) and frontend (React), delivering performant and scalable systems.

AI & Agent Systems

Integrate AI-powered solutions, including agent orchestration, workflows and decision-making systems.

APIs & Microservices

Design and build robust APIs to enable communication between systems and AI components.

Work with cloud platforms, containers and infrastructure-as-code to support scalable deployments.

Partner with product managers, designers and engineers to deliver high-quality features that reach production.

Write clean, secure, maintainable code and contribute to a strong engineering culture.

What You’ll Need:

• 5+ years’ experience in full-stack engineering roles
• Strong Python experience (FastAPI, Django or Flask)
• Advanced React.js skills (hooks, state management, modern JS/TS)
• Experience building RESTful APIs and microservices
• Exposure to AI/ML tools (e.g. LLM APIs, LangChain, Bedrock or similar)
• Experience with cloud platforms (AWS, Azure or GCP)
• Knowledge of Docker, Kubernetes and infrastructure-as-code
• Strong fundamentals in data structures, algorithms and system design
• Experience working with CI/CD pipelines and automation
• Comfortable working in agile, product-focused environments
• Mentoring experience or contributing to engineering best practices

Nice to Have:

• Experience integrating AI agent systems
• Interest in generative AI frameworks and architectures
• Experience with real-time systems or event-driven architectures

Location:

3 days per week hybrid in the office in Dublin City Centre.

Please note: You must have the right to live/work in Ireland.

About the Company:

You’ll be joining a global data and AI company working with some of the world’s leading organisations across industries like finance, healthcare, insurance and retail.

With a strong focus on innovation and growth, the business is investing heavily in AI and modern engineering practices, creating real opportunities to work on impactful, large-scale systems.

Interested?:

If you enjoy building full-stack systems, working with modern AI tools, and delivering production-ready solutions at scale this is the role for you!