Senior Backend Engineer – Conversational Intelligence team

Puzzel AS; Aarhus; Hybrid; DKK 900,000 - 1,200,000; Full time

Job summary

Puzzel AS in Aarhus, Denmark, is seeking a Senior Backend Engineer for the Conversational Intelligence team. You will design, build and maintain scalable backend services powering our AI-driven CX products, and own critical integrations and APIs.

You will collaborate across product and engineering, influence architectural decisions, and explore new technologies to improve performance and developer experience. Flexible hybrid work with 3–4 days per week in the office.

Qualifications

• 5+ years of software development experience.
• Experience building and maintaining integrations, APIs, distributed systems or data-heavy applications.
• Proficiency in C# and TypeScript.
• Fluent English in an international setting.
• Outspoken and comfortable contributing to open discussions within product teams and across functions.
• Product-minded, proactive and playing to win.

Responsibilities

• Design, build and maintain scalable backend services powering our AI products.
• Develop and maintain integrations and APIs.
• Collaborate across teams to deliver performant and reliable features.
• Participate in system architecture discussions, contributing to design decisions and technical direction.
• Help improve our ways of working and explore new technologies that enhance performance, scalability and developer experience.

Skills

5+ years exp

C# & TS

APIs & Integrations

English fluency

Team collaboration

Tools

MongoDB

RabbitMQ

Docker

Kubernetes

GitHub Actions

Job description

Senior Backend Engineer – Conversation Intelligence team

Aarhus, Denmark

About Puzzel

We're the AI-native customer experience platform built in Norway, trusted across Europe, and growing fast. For 25 years we've helped contact centres deliver faster, more human service — without the clutter or complexity. Today we're #1 in the Nordics, scaling rapidly in the UK and the Netherlands, with one ambition: become Europe's clear CX market leader.

Puzzel Values

• Built on Trust — our Nordic foundation. Customers, partners, and each other.
• Stronger Together — one team, one purpose, shared wins.
• Stay Hungry — we raise our game every day.

Why we're proud

• Frost Radar Innovation & Growth Leader in EMEA Customer Experience Platforms (2025)
• CX Awards 'Best Mid-Market Contact Center Platform' (2024)
• Flexa Top 10 most inclusive companies and Top 25 for work-life balance, diversity and inclusion, pet-friendly companies and professional services (2026)
• Consistently high Glassdoor rating
• Mercer -benchmarked pay for equity and market fairness
• Puzzel doesn't just build AI for our customers — we’ve embraced it internally, adopting it across the business to work smarter and faster

Read more about us here.

What you'll do

As a Senior Backend Engineer, you’ll be fully engaged in product development: bringing relevant features to customers, improving production code, and collaborating across functions to create next-generation CX products.

More specifically, you’ll work in the Conversational Intelligence (CI) team. Our CI product analyses customer interactions and provides automated, easy-to-use insights that help address knowledge gaps and inefficiencies and unlock opportunities across the entire organisation. To do that, our product relies on seamlessly pulling new and updated data from other systems, and a key part of this role is right there: taking ownership of some of our integrations and APIs, not only maintaining them but also modernising and improving how they are built.

You won’t be tackling challenges alone. We put a strong emphasis on collaboration and on creating an environment that supports your personal and professional growth. We expect you to be proactive, curious and a team player, and to contribute to our workplace atmosphere in your own unique way.

Key Responsibilities

• Design, build and maintain scalable backend services powering our AI products
• Develop and maintain integrations and APIs
• Collaborate across teams to deliver performant and reliable features
• Participate in system architecture discussions, contributing to design decisions and technical direction
• Help improve our ways of working and explore new technologies that enhance performance, scalability and developer experience

The must haves

• 5+ years of software development experience
• Experience building and maintaining integrations, APIs, distributed systems or data-heavy applications
• Proficiency in C# and TypeScript
• Fluent English, since clear communication is key in our international organisation
• Outspoken and comfortable challenging ideas and contributing to open, honest discussions within product teams and across functions
• Product-minded, proactive and playing to win

The nice to haves

• Experience with technologies such as MongoDB, RabbitMQ
• Familiarity with containerisation and orchestration (Docker, Kubernetes)
• Experience with CI/CD tools like GitHub Actions or similar
• Experience with Agile methodologies and the Product Operating Model
• Experience building secure, GDPR-compliant systems for sensitive data

The location

This role is based in Aarhus, with an expectation of 3–4 days a week in our downtown office. We value flexibility and working from home is common practice, but the office is open all week. We have great coffee, beverages, lunch, weekly breakfasts, Friday bars and an informal, inclusive atmosphere.

What to expect from the interview process

• Screening call with Talent Acquisition
• 1st interview with the Engineering Manager and a colleague
• 2nd interview with colleagues from Product and Tech
• Final interview with the Engineering Manager

Diversity & Inclusion

We want everyone at Puzzel to feel able to be their true, authentic self at work – regardless of nationality, race, ethnicity, religion, sexual orientation, gender identity, physical ability, age or economic background.

We're proud of our diverse, global workforce, but there's more to do. Our current gender split is 25% female to 75% male – in line with the SaaS average, but not where we want to be. Here's how we're improving it:

• Our C-suite has moved from 100% male in 2023 to a 5:3 male-to-female split today.
• Female hires grew from 23.6% in 2021 to 41% in 2024, dipping to 34% in 2025 — a trend we watch closely, but never treating as a tick-box exercise.
• We partner with Flexa, to compound our aspiration to attract a diverse talent pool.
• We work with state employment initiatives in Norway and Sweden on internship and apprenticeship routes, to help early-years talent into the workforce.

One Last Thing

Even if you're only a 75% match for this role, we still want to hear from you — this list is indicative, and skills can always be learnt.

We're unable to offer sponsorship for this role, so you'll need existing eligibility to work in the country you're applying to.

By applying you accept the terms of our Data & Privacy notice.