Senior Software Engineer (Fullstack)

Salary Competitive
Equity To be negotiated

The Mission

Most companies claim to care about people; we build the tools that prove it. Zoios is an analytics-driven People & Culture platform used by hundreds of high-impact companies to turn "wellbeing" from a buzzword into a measurable competitive advantage.

Come join a nimble elite team that provides incredible autonomy and flexibility while being ambitious and relentless when it comes to building a world-class product.


The reality of the role

You will be joining our Tech Lead, Jonas, to form the core engine of our product. This is not a role for someone who wants to be told exactly what to do. You are joining an elite, high-autonomy unit. You will ship daily. You will have a direct say in the architecture. You will be expected to possess a "Product Mindset" - meaning you care more about the user’s outcome than the elegance of a function.


What we expect

  • Fullstack proficiency: Strong knowledge of Next.js, React, TypeScript, and Node.js. Comfortable working across the stack. Knowledge of Go is a plus.

  • Frontend & UI: Proficiency in implementing design systems, component libraries.

  • Backend & databases: Strong understanding of SQL and relational databases (Postgres).

  • Technical foundation: Experience from high-caliber tech or product teams. Able to drive architecture and technical direction.

  • Product Mindset: A pragmatic builder who prioritizes user outcomes and can translate concepts into high-quality features.


Who you are

  • An independent contributor: You don't wait for a Linear ticket to tell you something is broken or could be better. You see it, you own it, you fix it.

  • A pragmatic architect: You are pragmatic, focusing on practical solutions and progress, adapting quickly without getting stuck on fixed opinions.

  • An articulate communicator: You can explain why you chose a specific technical path to a non-technical founder without losing the "why" in the "how."


Why Zoios?

  • Zero fluff: We value ruthless prioritization. If it doesn't move the needle for the customer, we don't build it.

  • Autonomy: We are office-first in Copenhagen but remote-friendly. We practice what we preach: high autonomy, clear expectations, and a culture that respects your time. We’ve built the software to measure wellbeing, and we use those insights to ensure our own team thrives.

  • Impact: You aren't a cog. You are a builder. Your code will be used by thousands of employees to improve their work lives by tomorrow morning.


The process

We invite candidates for interviews on a rolling basis.

  • Intro call (approx 30 min): A brief interview to align on the mission and the role.

  • Talent profile: We’ll ask you to complete a talent/personality profile. We will use this as a starting point for conversation in later interviews.

  • 1st interview - technical case: A session with our Tech Lead, Jonas, to work through a case and discuss our stack and how you think.

  • 2nd interview: A talk with the founders to discuss the roadmap, the business, and shared expectations.


How to apply

Skip the cover letter. Send us your Github, website or a list of projects where you made the hard technical calls. We want to see how you think, not how you format a resume.

For more information or questions please contact us at msa@zoios.io

Perks and benefits

This job comes with several perks and benefits

Free friday beers
Free friday beers

Social gatherings
Social gatherings

Near public transit
Near public transit

Free coffee / tea
Free coffee / tea

New tech gear
New tech gear

Mental health support
Mental health support

See all 11 benefits

Working at
Zoios

Zoios helps organisations create a world-class workplace where employees thrive and want to give their best. We do that by turning data into clever insights that can actually be acted upon. Because without action - it all becomes pointless 😔 We have a cultural mantra that we live and breathe by: Produce with Purpose and Pleasure. ✓ Produce is about creating innovative services and solutions. Experimenting with new features. Launch new concepts. Produce appeals to the creative urge and curiosity that everyone within Zoios has. ✓ Purpose encompasses that everything we create at Zoios needs to deliver value and, in one way or another, make a difference in the world. Without creating value - work becomes meaningless. ✓ Pleasure in part refers to Zoios’ vision of creating more joy at work. But it also refers to the fact that we need to start with ourselves. It needs to be fun and exciting to go to work at Zoios.

Read more about Zoios

company gallery image