-
View all jobs
Intro
This is not a job post. This is an invite to learn the Fourth Way and join a timeless mission to bridge quantum physics with cutting-edge consumer technology to create a new type of products the world has never seen.
If you imagine yourself as a horizontal line drawn on a flat sheet of paper laying on a table, you as that line cannot move through the third dimension, the height of the table. This is the limit of you as a one-dimensional line.
This same analogy is why we humans cannot perceive the time as a dimension (and also why the flow of time and free will are parochial illusions).
Now, imagine a cube. Just like that table, a cube represents three dimensions: a height, a width, and a length. If you duplicate this cube many times in say, a horizontal direction, you create a row of cubes, effectively forming the fourth dimension: the dimension of time. This row of cubes now represents what we know as the spacetime.
Now, imagine duplicating that row of cubes vertically to form multiple copies, effectively forming a vertical stack of rows of cubes. What do you have now? You have created the fifth dimension. A snapshot of all the snapshots of all the spacetimes: the multiverse.
Right now, there are infinite universes happing below our radar. Right now, at this exact moment, one you is reading this, another you is having a cup of tea, a third one has just died…these universes are slightly, very slightly perceptible to our naked eyes, only in the purest form of attention. So imperceptible that we could say they are not. And yet they exist. And yet they interact.
This is where we come in — our mission is to build immersive products of these hidden, alternative realities.
We start our mission in software: a mood-based social network. We are going to allow teens all over the world to share live memories with their friends in a new, profoundly better way.
Looking for an exceptional java hacker who will optimize our backend architecture and build our secret chat which will revolutionize how teenagers all around the world communicate.
This not a place where you will come to work. This is a place where you will live. All of us are in this with our whole lives. You will be expected the same, should you join. It will be extremely challenging, but we promise you something no place will: to achieve more with yourself than you ever imagined is possible and mark your name in history. The present is theirs, but the future, if you choose to accept, will become yours.
Technical Requirements
If you solve the task well, you advance to the personality stage. If you pass, you meet us the next day. If we like each other, you start immediately. From start to finish: five days.
Task
Implement messaging system (chat) between users via WebSockets. Frameworks you use are up to you. Users need to be able to send images and videos over the network (everything else is a bonus). To be implemented as an independent service to be used in an existing microservices architecture. The final product will be evaluated based on performance and scalability. Provide solution as a GitHub repo.
How To Apply
In five sentences most, tell us who you are and why are you the right person for the job. At the end of the message, confirm you are on the task. The deadline for the task will be three days from when you confirm.
This is not a job post. This is an invite to learn the Fourth Way and join a timeless mission to bridge quantum physics with cutting-edge consumer technology to create a new type of products the world has never seen.
If you imagine yourself as a horizontal line drawn on a flat sheet of paper laying on a table, you as that line cannot move through the third dimension, the height of the table. This is the limit of you as a one-dimensional line.
This same analogy is why we humans cannot perceive the time as a dimension (and also why the flow of time and free will are parochial illusions).
Now, imagine a cube. Just like that table, a cube represents three dimensions: a height, a width, and a length. If you duplicate this cube many times in say, a horizontal direction, you create a row of cubes, effectively forming the fourth dimension: the dimension of time. This row of cubes now represents what we know as the spacetime.
Now, imagine duplicating that row of cubes vertically to form multiple copies, effectively forming a vertical stack of rows of cubes. What do you have now? You have created the fifth dimension. A snapshot of all the snapshots of all the spacetimes: the multiverse.
Right now, there are infinite universes happing below our radar. Right now, at this exact moment, one you is reading this, another you is having a cup of tea, a third one has just died…these universes are slightly, very slightly perceptible to our naked eyes, only in the purest form of attention. So imperceptible that we could say they are not. And yet they exist. And yet they interact.
This is where we come in — our mission is to build immersive products of these hidden, alternative realities.
We start our mission in software: a mood-based social network. We are going to allow teens all over the world to share live memories with their friends in a new, profoundly better way.
Looking for an exceptional java hacker who will optimize our backend architecture and build our secret chat which will revolutionize how teenagers all around the world communicate.
This not a place where you will come to work. This is a place where you will live. All of us are in this with our whole lives. You will be expected the same, should you join. It will be extremely challenging, but we promise you something no place will: to achieve more with yourself than you ever imagined is possible and mark your name in history. The present is theirs, but the future, if you choose to accept, will become yours.
Technical Requirements
- Java and its core fundamentals (Quarkus, Hibernate, RESTful services, etc)
- Database and business logic layer
- Building microservices architecture
- Containerization using Docker
- Kubernetes for container orchestration
- Deploying applications to AWS using Docker
- AWS services (EC2, ECS, EKS, Lambda, RDS, S3, CloudFormation, VPC, IAM,…)
- Implementing Caching mechanism like Redis; integrating into ElastiCache
- Implementing monitoring, logging, and alerting tools*
- Readiness to work to extremes (willingness to consciously suffer and to suffer a lot)
- Extremely high focus (exceptional at saying no)
- Extremely high incisiveness (tell apart most important vs not)
- Exceptional ability to accept criticism (extremely low ego)
- High imagination (generating good technical ideas)
- Subconscious sense for computers
- With shield or on it: few words, many actions
- Excellent communicator (explaining technical problems using clear, simple language)
- Naughtiness: hacker’s mindset
- Extremely direct attitude (ready for uncomfortable truths)
If you solve the task well, you advance to the personality stage. If you pass, you meet us the next day. If we like each other, you start immediately. From start to finish: five days.
Task
Implement messaging system (chat) between users via WebSockets. Frameworks you use are up to you. Users need to be able to send images and videos over the network (everything else is a bonus). To be implemented as an independent service to be used in an existing microservices architecture. The final product will be evaluated based on performance and scalability. Provide solution as a GitHub repo.
How To Apply
In five sentences most, tell us who you are and why are you the right person for the job. At the end of the message, confirm you are on the task. The deadline for the task will be three days from when you confirm.
Key Skills
Ranked by relevance
microservices
cloudformation
redis
java
aws
eks
ecs
s3
Related Jobs
3 roles aligned with this opportunity
View Job Details
Related
Back End Developer
2026-06-18
Full-time
Mid-Senior
India
Information Technology & Services
Information Technology
View Job Details
Related
Desenvolvedor Full Stack | E-Commerce e Portais | São Paulo
2026-06-14
Full-time
Not Applicable
Brazil
Telecommunications
Engineering
View Job Details
Related
Administrateur systèmes et réseaux - virtualisation et containerisation F/H
2026-06-16
Full-time
Associate
France
Telecommunications
Engineering
Login to Apply
- Posted
- Feb 10, 2025
- Type
- Full-time
- Level
- Entry
- Location
- Madrid
- Company
- vivo
Industries
Telecommunications
Categories
Engineering
Information Technology
Related Jobs
3 roles aligned with this opportunity
View Job Details
Related
Back End Developer
2026-06-18
Full-time
Mid-Senior
India
Information Technology & Services
Information Technology
View Job Details
Related
Desenvolvedor Full Stack | E-Commerce e Portais | São Paulo
2026-06-14
Full-time
Not Applicable
Brazil
Telecommunications
Engineering
View Job Details
Related
Administrateur systèmes et réseaux - virtualisation et containerisation F/H
2026-06-16
Full-time
Associate
France
Telecommunications
Engineering