A bit of context
In the past 18 years, Mito has grown from three guys averaging 27 to over 230 people, dreaming up the most clever things our clients have ever seen — unless they’ve seen the Large Hadron Collider. We make campaigns, digital products, customer experiences, and data-driven marketing for brands all over the world.
The role
In the past 18 years, Mito has grown from 3 guys, averaging an age of 27, to over 230 people dreaming up the most clever things our clients have ever seen (unless they’ve seen the Large Hadron Collider). We create campaigns, websites, apps and other digital solutions for inspiring brands all over the world.
At our Technology department, we are super proud of the complex digital solutions we build for telcos, lottery companies and aviation brands all over the world. Right now, we’re looking for a seasoned Node.js pro to grab the wheel and take the lead on mission-critical, customer-facing applications: someone who speaks Fastify fluently, thrives on designing and scaling high-load API gateways, and knows exactly how to keep production from crashing into an infinite loop.
Your tasks will be:
- Developing high-quality software to achieve goals in a fast-paced business environment.
- Using Node.js and Fastify to deliver core functionality, designing and maintaining high-load API gateways.
- Mentoring developers and fostering a culture of technical excellence within your team.
- Syncing regularly with business stakeholders to seamlessly align technical architecture with business objectives (translating developer wizardry into real-world business talk).
- Taking part in incident resolution and problem management.
- Participating in technical design and change management.
- Contributing to architectural and design decisions.
- Estimating development and delivery times based on documented requirements, specifications, and technical designs (crystal balls are welcome, but realistic timelines work even better).
- Writing unit and integration tests, participating in end-to-end test development.
- Working together with our in-house DevOps team to streamline and sustain a well-functioning CI/CD pipeline.
- Ensuring PCI/DSS compliance for the code you deliver with your team.
- Discussing technical solutions with other developers
- Participating in your peers’ code reviews. Don’t worry, if you do it well, they’re going to love you for it.
We need you to have:
- At least 6+ years of experience with Node.js.
- Deep knowledge of Fastify, microservices and enterprise-grade large-scale applications.
- Hands-on experience designing and managing high-load API gateways (Kong is highly preferred, but AWS API Gateway is great too).
- Experience with optimizing high-load, distributed server-side services.
- Experience deploying, operating, and scaling applications within the AWS ecosystem.
- A steady hand with version control in GitHub and containerization using Docker.
- A security-focused mindset and experience with secure coding standards.
- A solid understanding of state-of-the-art buzzwords: business logic, data access layers, SOA concepts, microservices architecture, OOP, JSON, you name it.
- A decent level of English. This is an international community where documentation and formal communication are in English (if something’s wrong, you can curse in Hungarian, that sounds way better).
We will be super happy if you:
- Have familiarity with the .NET ecosystem and can comfortably read and understand C# code.
- Have hands-on experience with PCI/DSS or you already have an OWASP certification.
- Are familiar with the Agile methodology and SAFe principles.
Comes with benefits
There’s more to the job than the job. We’ve got a few things to help with the rest.
Your life prioritized
- Hybrid, made flexible
- Hybrid work that fits around dentist appointments, school pickups, and the usual life admin.
- Health, family & more
- Healthcare package, family support, fully paid paternity leave, and a personal budget for things like German lessons or bike helmets.
- Time well earned
- The longer you’re here, the more opens up: extra days off, sabbatical, and work-abroad options.
Hiring, from hello to yes
Nothing mysterious. Here’s what to expect along the way.
First chat
If your application looks like a match, we meet, tell you about Mito and the role, and see if we click. Bring your questions, we’ll bring ours.
Assessment
You’ll get a task related to the role. Nothing tricky, we just want to see how you think.
Feedback
We’ll tell you how it went either way, and would love your take on us too. Fair’s fair.
Decision
Then comes the yes or no. We’re obviously rooting for the first one.
Snapshots from our life
Everyday moments, a few Mito rituals, and a mix of clever things and silly people. Some of it makes more sense if you were there.
Slide 1 of 6: Life at Mito — snapshot 1

Still not sure?
Take a look at our work, read a few of our insights, or see which other roles are open. Call it research.








