SoftwareMill

Client had: 

Reco.se is a Swedish tech company behind the largest independent review site in Sweden where customers describe their previous experiences with a variety of companies. 

Client needed:

We’ve joined our clients team to quickly scale their efforts and together we have been  developing the platform on an ongoing basis. The scope of our work includes new features development, but also DevOps tasks and bug fixing. 

We did:  

We contributed to a number of infrastructure projects; one of which was moving from self-hosting to GCP cloud. We were also responsible for a major refactoring that included, for example, mailparsing project and search API project with Elastic Search integration. 

Outcome: 

The platform is currently the largest independent review site in Sweden. Since March 2019, users who want to leave a review need to get verified with their bank ID, which contributes to the website transparency and credibility. 

Technologies 

Scala, Akka, Play, Postgres, Elasticsearch, RabbitMQ, Kubernetes, Microservices

Full case study:
https://softwaremill.com/pdfs/reco_casestudy.pdf

CLIENT HAD:

Swissborg is a team of fintech experts and engineers that are creating a holistic crypto wealth management ecosystem accessible to everyone. The first part of the system is a mobile game that lets you predict, learn and earn Bitcoin.

CLIENT NEEDED:

We’ve joined our client’s team and together developed the mobile game. On the technical side, we were responsible for building the back-end of the app, mainly in Scala and Akka. 

WE DID:

The part of the app that we developed consists of the following elements: 

Forecast module which evaluates bids versus the exchange rates every 24 hours, 

Calculation module that counts each player’s score 

OUTCOME:

The app has reached 10 000 users (as of April 2019). It’s a fun, easy to use app that lets you predict the price of Bitcoin and earn it without taking any risks. It’s available on iOS & Android.

Technologies 

Scala, Akka Streams, Postgres, Docker, Kubernetes

Full case study: https://softwaremill.com/pdfs/swissborg_casestudy.pdf

CLIENT HAD:

Previous-generation system which couldn't cope with increasing message loads.

CLIENT NEEDED:

There were three main focus areas. First, reliable delivery of hundreds of messages per second. Second, an integrated billing module with a web front-end. Finally, covering new use-cases of the system, for example new interfaces, integrating with other providers.

WE DID:

Implemented a high-performance, reliable SMS message queue, with nightly stress/performance tests. We also developed a web application that allowed for checking of billing status. Also, on top of the system, we created an SMS-iMessage-like solution.

You can read a case study about the project our blog!

OUTCOME:

Fail-safe and efficient system with high bandwidth.

Technologies: Scala, Akka, Groovy, AngularJS, Java, Drools, MongdoDB

Category: Back-end solution, Web App