This project uses Quarkus, the Supersonic Subatomic Java Framework.
If you want to learn more about Quarkus, please visit its website: https://quarkus.io/ .
You can run your application in dev mode that enables live coding using:
./mvnw compile quarkus:devNOTE: Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.
The application can be packaged using:
./mvnw packageIt produces the quarkus-run.jar file in the target/quarkus-app/ directory.
Be aware that it’s not an über-jar as the dependencies are copied into the target/quarkus-app/lib/ directory.
If you want to build an über-jar, execute the following command:
./mvnw package -Dquarkus.package.type=uber-jarThe application is now runnable using java -jar target/quarkus-app/quarkus-run.jar.
You can create a native executable using:
./mvnw package -PnativeOr, if you don't have GraalVM installed, you can run the native executable build in a container using:
./mvnw package -Pnative -Dquarkus.native.container-build=trueYou can then execute your native executable with: ./target/interview-1.0.0-SNAPSHOT-runner
If you want to learn more about building native executables, please consult https://quarkus.io/guides/maven-tooling.html.
- RESTEasy JAX-RS (guide): REST endpoint framework implementing JAX-RS and more
REST is easy peasy with this Hello World RESTEasy resource.
This example demonstrate RESTEasy JSON serialisation by letting you list, add and remove quark types from a list. Quarked!
Grofers Recruitment Scheduling
- Maximise number of candidates going through hiring pipeline
- Minimize Interviewer uncertainty
- Minimize Time Candidates spend in hiring pipeline
- Balance out Interviewer team disruptions
- Model the problem as a convex optimization problem
- Write a solver
- What is the model:
- X candidates:
- each candidate has a set of skills which we need to interview them for
(eg. SDE 1 - problem solving, SDE 2 - Design, Bar Raiser)
- each candidate can specify their availability
(eg. I can take the interviews on monday 5pm, tuesday 5pm or saturday 10am)
- Y Interviwers:
- each interviwer has a set of skills they can take interviews for
- each interviewer can specify their preferred slots for taking interviews
- each interviwer belongs to a sub team in grofers
- Match X,Y to make sure candidates and interviewers match on skillset and slots.
- Ensure Interviwers are spread across so that a single team is not burdened and everyone has a fair share of the interviews.
- OptaPlanner
- open source solver modelling framework
- comes with capabilities to model business contraints using rules
- comes with capabilities to run continuous solver
- good documentation on lot of different optimization problems
- Quarkus
- Lightweight runtime, cloud native deployments and build iterations are rapid
- Has very good patterns for modelling microservices in java rapidly
- React Admin
- needed to push out the ui for this in 1 hour
- Solves problem with x candidates, y interviews and a z timeslots to an acceptable level in x seconds
- Adjusts plan if something changes
- eg. candidate / interviewer changes slot preference
- eg. skill set requirement changes.
- Allow the Interview Requirement to be broken into multiple pieces (Round 1, Round 2, Round 3) with dependency chain. ( model it like an assembly line )
- Build the basic functionalities into the ui
- better forms
- access control
- reports
- Execute schedule by sending out appropriate calendar invites , slack notifications
- Integrate into workflow to automate feedback collection / associated practice questions
Future desires:
- model stochastic processes (i.e: skeptical candidates dont get planned for 3rd rounds automatically etc.)
- Can be extended for non recruitment use cases:
- redistribution of manpower in stores to optimize store maintainance activities ( put away, picking, billing)
- redistribution of manpower across stores to solve for service requirements(x number of fnv orders in location y, incentivize movement manpower from z to y)
- technology roadmap -> execution planning and redistribution