Fullstack Engineer To Help Us Scale Globally

1 month ago


Copenhagen, Denmark Doubble Full time

are you excited about the idea of using your fullstack engineering skills to make the future of social networks less about followers and more about close friends?

then we might have an interesting opportunity for you


why we are building Doubble?

🍀our vision is to build a close friend social network to help solve loneliness


at Doubble we build the future experiences we create with our close friends


the first step was to build our double dating app that allows you to meet new people with your friends. meeting new people is a big part of Doubble, but the less obvious, yet most important secret ingredient in Doubble is: the close friends.


in the era of social networks, this is the paradox of our time: it’s never been easier to connect, yet we feel lonelier than ever.

our generation spends 3 hours per day on social networks, but only 3 hours per week with close friends.

today’s social networks solved boredom, but not loneliness.


the social networks missed an important insight: you can feel just as lonely with no friends as with hundreds of friends. in fact, it’s when we’re together with our close friends we feel the most connected.


that’s why focusing on the experiences we create with our close friends has never been more important than right now.

if done right, the close friend social network category can solve loneliness, and Doubble will be a key piece in this close friend social network puzzle.


Where are we going?

🏎️Doubble is in the midst of a global scale race

Doubble started in Denmark and the numbers clearly show we built something our generation needs:

55% of gen z dating users in Denmark are on Doubble

we process more than 300 swipes per second

+200.000 users


What we did in Denmark, we did 5x faster in Sweden, then Norway, then the Netherlands, and most recently, the United Kingdom.

we’ve proved to the world that there is a way to meet new friends with your close friends, but the problem with proving it to the world is that we’re also proving it to competitors.

we are on our competitor’s radar. we are in the middle of a global scale race and the question is: will Doubble get global scale before a competitor copies us?


What joining Doubble means for you?

🤝greatness doesn’t come easily

there is no need to sugercoat that joining Doubble and winning the global scale race will be intense.


Doubble will be your opportunity to prove that you are an elite operator

you can get really far by either working hard or working smart, but to win the global scale race you have to do both. we put everything we have on the field, so you shouldn’t be surprised to see your team mates working 9 to 21.

winning this race is an accomplishment only an elite operator can achieve.


Doubble will be your opportunity to make history

taking Doubble to a billion dollar company will require significant portions of your time, but if we succeed, you’ll be able to look back and say:

“i was a part of building the largest consumer company in Denmark since Lego”


Doubble will be your opportunity to change the trajectory of social networks

today’s social networks have solved boredom.

if done right, a close friend social network can solve loneliness, and Doubble will be a key piece of this close friend social network puzzle.


Who are we looking for?

🧑‍🎨a full stack engineer who wants to take ownership and is motivated by the idea of getting ownership in Doubble

your key responsibilites as a full stack developer will include:

contributing to discussions on solutions to novel problems, expanding the collective brain power to the power of 2.

developing high quality maintainable backend software that embraces proper application of design patterns and code ingenuity to solve challenging problems

developing beautiful, effective, and user friendly software in a cross-platform native application environment, always applying a keen eye for visual detail, and with an innate drive to improve a rapidly growing code base

collaborating with the engineering team to apply increased observability, improve deployment workflows, and otherwise innovate on architecture and infrastructure


💻Our tech stack

Backend: NodeJS with Fastify-powered NestJS and Typescript, Rust (Tokio), Redis, BullMQ, OTel/Clickhouse/Grafana, Sentry, Cloudflare Workers, etc.

Frontend: Flutter with Riverpod/Freezed architecture, Fastlane / Github Actions for CI/CD, Crashlytics, Firebase messaging

Infrastructure: AWS Fargate managed through Pulumi IAC, CockroachDB cloud, Cloudflare, Github Actions

Database: CockroachDB (PostgreSQL)


🏆Benefits & Perks

Competitive compensation

we hire the best and offer competitive compensation to match. Doubble want to build an impactful product and if you help us do this right, this should also be financially impactful for you.

small team, huge impact

each team member represents more than 50.000 users.

we work in-office

we believe effective communication is key to innovate and to build the best consumer experiences and these solutions are crafted in our beautiful office in Copenhagen.

we're all about shipping fast and iterating

you can expect your work to be in the hands of thousands of users quickly.

dinner is on us

plenty of snacks and coffee at the office

we have lunch together with a delicious meal plan and as we often end up working late, we also often eat dinner together. some of our best ideas have come about while taking a deserved break from our work

we celebrate together

our milestone roadmap includes a celebration for each. we believe that to build a fun product experience, we need to have fun in the process and we generally try to gamify our work.

talk is cheap so you should do more of it

we are all curious by nature which means discussions in our team often lead to key insights faster than if we shipped and waited for the results, so we encourage intellectually honest discussions. smart people and a white boards can do wonders.


⚙️Hiring process

After you’ve applied, expect the process to take 2-3 weeks. Then you either join us or we come back with feedback:

1️⃣Intro coffee: lets get to know each other and get your questions answered

2️⃣Technical session: a test you can work on in your own tim

3️⃣Technical interview: Feedback and talk about the test with Joachim (Head of Engineering)

4️⃣Let’s spend time together: its a tough decision to make a career move, so lets spend some time together in person. This is also an opportunity to meet others around the project: investors, talk to users and others you might want to meet


  • Fullstack Engineer

    3 weeks ago


    Copenhagen, Denmark Criipto Full time

    Fullstack Engineer, ExtensionsWe’re looking for a non-artificial intelligent Fullstack Engineer to help us protect our fellow humans.What you'll doExtensions is a new offering enabling our customers to extend the login and signature process offered by Criipto.As the principal engineer for extensions, you will work with the product team to expand offering...

  • Fullstack Engineer

    4 weeks ago


    Copenhagen, Denmark Langstack Full time

    What we doWe're on a mission to simplify and accelerate how teams and organizations develop solutions for the cloud. Langstack is an AI-powered development platform that enables teams to collaborate, create, and manage AWS solutions with unmatched efficiency. Azure and GCP support is on the horizon.We're convinced that there's a better way to develop for...

  • Fullstack Engineer

    3 weeks ago


    Copenhagen, Copenhagen, Denmark Langstack Full time

    What we doWe're on a mission to simplify and accelerate how teams and organizations develop solutions for the cloud. Langstack is an AI-powered development platform that enables teams to collaborate, create, and manage AWS solutions with unmatched efficiency. Azure and GCP support is on the horizon.We're convinced that there's a better way to develop for...

  • Fullstack Engineer

    3 weeks ago


    Copenhagen, Denmark Langstack Full time

    What we doWe're on a mission to simplify and accelerate how teams and organizations develop solutions for the cloud. Langstack is an AI-powered development platform that enables teams to collaborate, create, and manage AWS solutions with unmatched efficiency. Azure and GCP support is on the horizon.We're convinced that there's a better way to develop for...


  • Copenhagen, Denmark DORA Full time

    DORA is on a mission to reduce emissions from supply chain logistics. We help small businesses calculate and improve their carbon footprint from transport based on planning and driving data. Our customers say that DORA is forward-thinking and intuitive, and saves them time on resource planning, documenting and invoicing through a single, unified...


  • Copenhagen, Copenhagen, Denmark DORA Full time

    DORA is on a mission to reduce emissions from supply chain logistics. We help small businesses calculate and improve their carbon footprint from transport based on planning and driving data. Our customers say that DORA is forward-thinking and intuitive, and saves them time on resource planning, documenting and invoicing through a single, unified...

  • Global Procurement

    2 weeks ago


    Copenhagen, Copenhagen, Denmark Too Good To Go Full time

    Too Good To Go is the world's number 1 app for fighting food waste. Why do we need to do that? Because more than 1/3 of the food produced in the world is wasted. And that has a huge impact on the health of our planet; 10% of greenhouse gas emissions come from food wasteOur app has more than 93 million users, but we're more than an app. Our mission is to...

  • Global Procurement

    2 weeks ago


    Copenhagen, Denmark Too Good To Go Full time

    Too Good To Go is the world's number 1 app for fighting food waste. Why do we need to do that? Because more than 1/3 of the food produced in the world is wasted. And that has a huge impact on the health of our planet; 10% of greenhouse gas emissions come from food waste! Our app has more than 93 million users, but we’re more than an app. Our mission is to...


  • Copenhagen, Denmark Vestas Full time

    Are you looking for the next step in your career at the global leader in sustainable energy solutions? Are you an experienced Senior Project Planning Specialist with a desire to work on truly transformational projects? If you have great communication skills coupled with the ability to influence stakeholders at all levels, then Vestas has the opportunity...

  • VP of Engineering

    4 weeks ago


    Copenhagen, Denmark Veo Technologies Full time

    Veo is a global leader in AI-based sports camera technology. Our innovative, fully automatic camera solution enables sports teams to record matches and training sessions without a camera operator. We’re democratizing the world of sports by granting video analysis for teams on all levels—a privilege that used to be only for the few. More than 40,000 clubs...

  • VP of Engineering

    3 weeks ago


    Copenhagen, Copenhagen, Denmark Veo Technologies Full time

    Veo is a global leader in AI-based sports camera technology. Our innovative, fully automatic camera solution enables sports teams to record matches and training sessions without a camera operator. We're democratizing the world of sports by granting video analysis for teams on all levels—a privilege that used to be only for the few. More than 40,000 clubs...

  • VP of Engineering

    3 weeks ago


    Copenhagen, Denmark Veo Technologies Full time

    Veo is a global leader in AI-based sports camera technology. Our innovative, fully automatic camera solution enables sports teams to record matches and training sessions without a camera operator. We’re democratizing the world of sports by granting video analysis for teams on all levels—a privilege that used to be only for the few. More than 40,000 clubs...


  • Copenhagen, Denmark Too Good To Go Full time

    At Too Good To Go, we have an ambitious goal: to inspire and empower everyone to fight food waste together. 40% of all food produced in the world is wasted. And that has a huge impact on the health of our planet, with 10% of greenhouse gas emissions coming from food waste.  We’re more than an app: we are a certified B Corporation with a mission to empower...


  • Copenhagen, Denmark Ramboll Full time

    Job Description Are you ready to leverage your extensive electrical engineering experience to make an impact in large-scale, international high-rise projects? Do you thrive in a collaborative, global environment, working seamlessly with cross-functional teams to address multidisciplinary challenges? Then you could be our new colleague! Join our global...

  • Senior Value Engineer

    3 weeks ago


    Copenhagen, Denmark Celonis Full time

    We're Celonis, the global leader in Process Mining technology and one of the world's fastest-growing SaaS firms. We believe there is a massive opportunity to unlock productivity by placing data and intelligence at the core of business processes - and for that, we need you to join us. The Team: As a Senior Value Engineer (Denmark)  you'll be joining...


  • Copenhagen, Denmark Tembi Full time

    Do you want to be part of our team as we are about to kick off the next successful Software as a Service (SaaS) adventure? Are you an ambitious student with a technical mindset and a solid analytical background? Come and join us as an student and help us grow our technical part of the business. We are highly engaged in ecommerce and use scraping...


  • Copenhagen, Copenhagen, Denmark Tembi Full time

    Do you want to be part of our team as we are about to kick off the next successful Software as a Service (SaaS) adventure? Are you an ambitious student with a technical mindset and a solid analytical background? Come and join us as an student and help us grow our technical part of the business. We are highly engaged in ecommerce and use scraping technologies...

  • Engineering Manager

    3 weeks ago


    Copenhagen, Denmark Mover Full time

    We're seeking a forward-thinking and hands-on Engineering Manager to drive innovation, mentor a team of exceptional developers, and help shape the future of our technology. If you’re a leader who excels in both technical and interpersonal aspects of SaaS product engineering, you could be the one we’re looking for!We're a scale-up technology company...


  • Copenhagen, Denmark Multiverse Full time

    We’re on a mission to provide equitable access to economic opportunity, for everyone.We close critical skill gaps in the workforce through a new kind of apprenticeship that combines work and learning. We begin by recognizing high-potential individuals both inside and outside of a company's current workforce and then we create applied, guided and equitable...


  • Copenhagen K, Denmark Agreena Full time

    Copenhagen, Denmark / London, United KingdomTechnology – Software Engineering /Full-time /RemoteApply for this jobAbout AgreenaAgreena is an exciting, dynamic, and purpose-oriented organisation united in a mission to mobilise farmers and corporations to unlock the value of nature and help restore the planet. While we’re rooted in agriculture, finance,...