Senior Data / Backend Engineer

relocation support to Germany included

We are a location-based analytics startup in Berlin. Every day more than a million mobile panelists send us over a billion data points about where they go in the real world.

We use this data to look for insights and patterns in how people behave. For example, we can look at people who have seen an ad for IKEA and work out if it makes them more likely to visit an IKEA store. There are a ton of things that can be done with this data and we’re just starting to scratch the surface of them.

For all this we have a panel of people who have explicitly agreed to share their day-to-day data with us (anonymously of course), as well as apps and an SDK to collect that data. The challenge is to derive as many insights as possible from it.

What you’ll be doing

Data processing is our bread and butter, and you’re going to be the chef.

We have dozens of Spark jobs, both simple and complex, organised into pipelines. We have machine learning models already running or awaiting productionisation. Don’t worry, our infrastructure is already in a good shape with Kubernetes, Spark clusters running on Google Cloud and AWS, 100% dockerisation and a high degree of automation.

If you’re keen on process automatisation, working with machine learning models at scale, solving really complex tasks in a distributed manner and writing small but mighty services, we’re a good place for you.

Your responsibilities will include:

  • Support and continuous enhancement of data processing pipelines running on Spark clusters
  • Productionisation of machine learning models developed by data scientists
  • Coding new features in Python or Scala for existing services or creating new ones
  • Maintaining and improving CI/CD processes — be it Jenkins or Kubernetes schedulers

Our tech stack

Scala, Python, Spark, Luigi, YARN, Jupyter, Docker, Kubernetes, Kafka, Elasticsearch, MongoDB, AWS, Data Science: Sklearn, Keras, TF, Pymc3

What we’re looking for from you

  • Vast experience coding in Scala or Python
  • In-depth knowledge of Spark and big-data ecosystems
  • General knowledge of devops culture and familiarity with one of the deployment frameworks (understanding Kubernetes is a big plus)
  • Good working English (don’t worry – German is not required)
  • Drive to get things done – you burst through obstacles in your way and don’t mind lending a hand when the team needs it
  • Curiosity to think about the big picture and learn new technologies

How we are different

  • We’re a relatively early-stage startup, which is honestly the most fun time. It’s when the big decisions get made and the most interesting problems need to be solved. It also means things stay varied and interesting
  • Our product requires a few great people rather than many good ones. Joining our team will give you lots of opportunities to shape the company from the early days on
  • We believe in keeping people happy, and in our experience that means two things: giving you as much responsibility as you can take and making sure you have opportunities to learn new skills and technologies
  • We’re experienced: between us we’ve founded a Y Combinator startup, built the technology for an advertising bidding platform, founded a tech hedge fund and worked at McKinsey
  • Tech and data insights are our core business, not just a fashionable side project
  • We are all applied scientists – everything we do is data-driven
  • We have a world-class team of angels and advisors to help us on our mission

We have great benefits

  • Help with visa & residency
  • Flexible working hours
  • Startup energy
  • Competitive salary
  • Centrally located in Berlin
  • Small, passionate team of extraordinary people
This rocketship is going to Mars, claim your seat!

Apply now to david.roberts+web@locarta.co

Senior Android Developer

relocation support to Germany included

We are Locarta – a location-based mobile analytics startup in Berlin. We’re collecting a ton of interesting data on where people go in the real world, to look for insights and patterns among different user groups. For example, we can look at people who have seen an ad for IKEA and work out if it makes them more likely to visit an IKEA store. There are a ton of interesting things that can be done with this data and we’re just starting to scratch the surface of them.

For all this, we have a panel of people who have explicitly agreed to share their location with us (anonymously of course), as well as an app and SDK to collect and transmit the relevant data.

What you’ll be doing

Our Android app and an SDK that are core to our business, so quality mobile development is important to us. Your mission is to complete the next iteration of both. That means both implementing new features in the app and tweaking the SDK to work more efficiently and play nicely with the new versions of Android coming down the line.

If you geek out about lat/long and sensor data and get a kick out of writing elegant code that conserves resources, this is the right gig for you. Plus the SDK uses parts of Android that you don’t see in most apps.

You can find our app here.

What we’re looking for from you

  • Expert in Android development (2+ years experience)
  • You have Android best practices for breakfast
  • Fluent in English – but don’t worry, German is NOT required
  • Good communicator and proactive, positive attitude
  • Enjoys thinking about the big picture and dreaming up new features
  • Experience with iOS development a plus
  • Experience designing UX a plus

How we work

We’d be happy to put you in contact with our last Android dev so that you can get an idea of what it’s like to work with us, but here’s what I’d say:

  • Experienced team (between us we’ve founded a Y Combinator startup, built an ad tech demand-side platform and founded a tech-related hedge fund)
  • Good communication
  • Collaborative atmosphere (we believe anyone can come up with good ideas)
  • Clear processes and planning (scrum, continuous integration, etc.)
  • Modern stack and tools (Android Studio, Dagger 2, Retrofit, Git)
  • Unit and instrumentation testing
  • A sense of humour
This rocketship is going to Mars, claim your seat!

Apply now to david.roberts+web@locarta.co