Up to €130,000 + Meaningful Founder-Level Equity**

We're working with one of the most exciting early-stage teams in Dublin right now - a group of ex-founders who have already built and sold companies, and are now scaling their next venture.

The product is already launched, in the hands of real customers, and growing fast. They're now expanding the engineering team to build out the next wave of the platform.

This isn't a maintenance role, everything you touch has a visible impact.
This is a genuine founding engineer opportunity.

They've created a system that can understand real conversations happening across a business - calls, meetings, messages - and extract the real meaning and context behind them.

Not dashboards. Not summaries.
Actual, useful understanding.

Your work will power the backend systems that process large volumes of messy, unstructured conversational data, shape the pipelines behind it, and design the infrastructure that makes the entire product possible.

They're hiring a Senior Backend Engineer to work directly with the CTO and take ownership of major parts of the backend and infrastructure.

Rough split:
* 80% deep engineering - scaling services, designing clean systems, building out the core platform
* 20% AI/LLM integration - learning-on-the-job how to design workflows, embeddings, evaluation loops, and orchestration patterns

You don't need to be an AI expert today - but you'll gain genuine, hands-on experience building these systems properly, not just "calling APIs".

This role is ideal if you:

• want real autonomy

• enjoy owning systems end-to-end

• are curious about modern AI, but want to learn it the right way

• prefer moving quickly in small, highly capable teams

• like being in the room where decisions are made quickly
  
  

They're not dogmatic - but this is what you'll see day-to-day:

Backend: TypeScript, Node.js, gRPC, REST
Data: Postgres, Drizzle ORM
Infra: AWS, containerised services, performance + observability tooling
AI Layer: Python, LLM workflows, retrieval, embeddings, evaluation frameworks

If you're coming from Python, Go, Java, C#, etc. - no issue.
Strong fundamentals matter more than matching their stack.

• Strong backend or full-stack engineering experience

• Someone who builds clean, scalable systems

• Solid fundamentals: architecture, performance, testing, good reasoning

• Experience with distributed systems or high-scale environments is a plus

• A builder's mindset - you enjoy figuring things out when the answer isn't obvious

• Curiosity about AI and how modern systems integrate it
  
  

• Founding-level equity - real ownership

• Serious builders - every engineer in the room has founded or helped build succesfull companies before

• Live product + paying customers - not hypothetical ideas

• Two-stage interview process - no take-homes, no drawn-out loops

• Hiring in the next 1-2 weeks

• On-site team, 5 days - they move fast, build together, and make decisions in real time
  
  

• your work is visible immediately,

• you can influence architecture from day one,

• you learn AI in a real engineering environment,

• and you join a team of people who've already done this successfully…

…this is one of the rare opportunities in Dublin where all of that is on the table.

To speak in absolute confidence about this opportunity please contact Jack Tyrrell, Specialist Recruitment Consultant at MCS Group 016994371or send an up to date CV via the link provided.

If this position is not right for you, we may have others that are. Please visit www.mcsgroup.jobs to view a wide selection of our current jobs. All conversations will be treated in the strictest of confidence.