Senior Full-Stack Engineer - AI-Driven, Remote, Brussels

Help fix customer-centricity at scale Every company wants to become more customer-centric. At TheyDo, we make that ambition real. Our AI-powered journey management platform helps the world’s largest enterprises align around what matters most: their customers. By bringing scattered data and teams together, we empower smarter decisions and better experiences. Since 2019, global leaders across industries — including Ford, Cisco, Johnson&Johnson, Siemens, Home Depot, and Lufthansa— have trusted us to scale journey management and deliver measurable impact. Backed by $50M from top-tier investors, including Blossom and 20VC, we are building a category-defining company. Our fully remote team represents 30+ nationalities across 27 countries, united by a customer-led, people-first culture.

Our mission is clear: Make journey management the most powerful business tool in the world. If you’re looking for a place where your work shapes the future of how companies operate, join us. Let’s build it together.

Senior Fullstack Engineer

Building journeys sounds simple - until you try to make them fast, flexible, and scalable across complex organisations. At TheyDo, you’ll work on the foundations of how companies understand and improve customer journeys. Think permissions across workspaces, and systems that need to stay fast while handling growing complexity. This is where your work makes a direct impact on how teams make decisions every day.We’re looking for a Senior Fullstack Engineer who enjoys untangling complexity, ships quickly, and cares deeply about how products feel and perform. What you’ll do

You’ll work across the full stack to improve how our platform handles scale, structure, and speed. From architecture decisions to shipping features, you’ll play a key role in shaping the product. Your work will include: Building and evolving core platform capabilities like workspace management, permissions, and governance

Improving how data flows across workspaces, making content more flexible and connected

Driving the implementation of Workspace 2.0, helping redefine how customers structure and manage their work

Optimising performance across critical areas like journey mapping and the journey detail page

Tackling complex data challenges, including filtering, querying, and merging large datasets efficiently

Designing and improving system architecture with scalability and maintainability in mind

Collaborating closely with product managers and designers to ship features quickly and thoughtfully

Experimenting with AI capabilities and exploring how they can enhance the product experience

What we’re looking for

You’re someone who enjoys solving hard problems, moves fast, and thinks in systems. You don’t just build features - you understand how everything connects. In depth experience with Node.js, TypeScript, and frameworks like NestJS

In depth frontend experience with Vue, or React with a willingness to work in Vue

Proven ability to design and work with complex systems and architectures

Experience working on SaaS products over a longer period of time

Product mindset - you care about how and why users interact with what you build

Ability to move quickly and ship frequently without sacrificing quality

Interest in AI and willingness to experiment with it in a product context

Comfortable working asynchronously and documenting your work clearly

Nice to have: Deep experience with Vue

Familiarity with domain-driven design (DDD)

Experience leading or mentoring in AI-related initiatives

What success looks like

You ship consistently and quickly, delivering meaningful improvements week after week

You bring structure to complex systems and make them easier to work with

You spot product opportunities and contribute beyond just implementation

You help the team move faster by making smart architectural decisions

You actively explore how AI can improve both the product and how we build it

Why you shouldn’t apply

This role isn’t for everyone, and that’s intentional. You prefer clearly defined tasks handed to you - here, you’ll need to figure out what to work on next

You’re uncomfortable with complexity - our systems are not simple, and that’s part of the challenge

You like slow, predictable environments - we move fast and expect you to keep up

You’re only interested in either frontend or backend - this role requires both

You don’t enjoy thinking about product decisions - engineering and product go hand in hand here

What you can expect at TheyDo

Fully remote work across Europe, with flexible hours

A highly autonomous environment where you own your work

A team that values speed, clarity, and craftsmanship

Real impact on a product used by leading global companies

Space to experiment, especially with AI and new technologies

Regular offsites to connect, reflect, and have fun together

We’re building something ambitious - and we’re just getting started. If you enjoy solving complex problems, shipping fast, and shaping the future of journey management, we’d love to hear from you. What we offer our permanent employees: Competitive compensation and pre-IPO equity - we like togive our team members ownership with our stock package. When TheyDo succeeds, we all succeed!

Fully remote working with flexible hours - we're staunch advocates for autonomy and flexibility.

Health Insurance benefit-

at TheyDo our team’s health and wellbeing are a priority. We include tailored support for every employee, regardless of location.

Flexible holiday days

– We love what we do and equally love taking a break. You'll have a minimum of 25 days of paid holiday per year (pro rata), in addition to public holidays and an extra three days during our annual company-wide winter shutdown in December.

Learning and Development budget we encourage everyone to take ownership and invest in their growth and development, providing financial support to benefit you in your role and career.

♂️Wellbeing budget-

nurture your mind and body. We’ll support you in looking after you, whether it's meditation, mindfulness, or a yoga/gym membership.

Paid parental leave - we'll ensure financial support and time off for you to bond with the newest little members of your family (6 months for the primary carer, and 6 weeks for the secondary carer - fully paid). We provide paid childcare leave when you need to take time out to help your little one recover.

Home office or co-working support - choose your ideal workspace with our home office or co-working budget. Whether you prefer the comfort of your home office or the collaborative atmosphere of a co-working space, we've got you covered.

️Company events - we regularly connect in-person to strategise, reflect or simply have fun. Our most recent company retreats were held in Spain, Portugal and France.

⚒️Latest tech&tools - MacBook Air or Pro, we want you to have the equipment that you’re most comfortable with. We use tools such as Gather, Slack, Notion, Loom, G:Suite and naturally TheyDo to work collaboratively and asynchronously.

Continuous growth of our benefits package as we continue to grow in size To any recruitment agencies, we appreciate you would like to support us but we do not accept any unsolicited CVs or introductions. About TheyDo Our

core values

are the driving force behind every decision we make. We

‘Journey together’

along a path of collaboration and synchronization. In everything we do, we

‘Own it’ , never shying away from taking action or making decisions. Our

‘Cloaks off’

mentality ensures that transparency and integrity reign supreme.

We‘

Simply to accelerate

', cutting through complexity to focus on what truly matters and moving forward with clarity and speed

Moreover,

‘Customer Fueled’

innovation is at the heart of our work, as we know that the success of our product is directly linked to how we involve our customers in the process. TheyDo is an equal opportunities employer. Our customers are diverse, and we believe our organisation should be, too. We nurture an inclusive culture where everyone feels equally important, no matter their background or status. We will never discriminate on the grounds of gender, civil status, family status, sexual orientation, religion, age, disability, education, or race.

Our commitment to building a diverse and inclusive TheyDo includes making reasonable adjustments to the interview process. If you need any adjustments, please reach out to your Talent Partner. If you are a woman or part of an underrepresented group, we encourage you to apply. Even if you don’t check every box — your skills and perspective could be just what we need to succeed. We value diversity and know you bring something unique to the table!#LI-Remote

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