ROBLOX is Expanding to Continue Innovating

ROBLOX is one of the biggest gaming sites on the internet–we’ve logged 140,000 peak concurrent users and 393 million hours of gameplay in 2012. As we continue to steadily grow our userbase, we’re also looking to expand the size of our team. That’s right folks, ROBLOX is hiring. The current version of ROBLOX represents less than 10% of what we envision for the future–come help us build that future today!

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We thought we’d take a look at some of various job openings here at ROBLOX and look back at some of the major work accomplished in each of the respective fields this past year:

Position: Senior Web Engineer

Our Web Team is constantly hard at work tackling complex problems in usability, scalability, and distributed systems. They ship code on a daily basis and work in short, agile, and iterative development cycles. Here’s some of the awesome developments they’ve made in the past year.

Speeding with Message Queuing helps ROBLOX avoid slow responses and time-outs by using a queue that manages over 15 million requests a day. RabbitMQ became our messaging solution–it features client libraries in multiple languages, an admin API and a slick web dashboard.

ROBLOX: Gaming in the Cloud outlines how we host millions of games through the internet using our very own farm of servers to handle the bandwidth. We want users to focus on gaming and building, and leave the cloud-computing to us.

Position: Mobile QA Engineer

This past year ROBLOX has made the jump to mobile devices–our Client Team worked tirelessly to not only get ROBLOX games running on iPads, iPods, and iPhones, but to bring as many parts of the ROBLOX experience into the palm of your hands as possible. It wasn’t easy, but we’ve come a long way since we made our initial push to bring the ROBLOX experience to iOS in Q4 2012.

In January we looked at our Mobile Stats and found some really encouraging numbers. 3.4 million Mobile play sessions took place in the month of December, and we received over 250,000 downloads in less than six months.

ROBLOX Mobile Now Supports Vehicles and Chat on All Devices details our push to get cars and the chat feature working shortly after ROBLOX Mobile officially released. The support was embedded in an update in the iTunes App Store.

We documented every aspect of porting ROBLOX to iOS including Memory Optimization, Control Design, and more. We’ve compiled those stories together for you below.

Position: Voxel Engineer

Our Rendering Team is always looking for ways to make ROBLOX look better while continuing to scale it to a wide range of machines. Voxel terrain allows us to build massively scalable, dynamic virtual worlds. We’ve covered a lot of ground this year, and have an exciting path in front of us this year.

We prototyped Dynamic Lighting and Shadows earlier in the month. The new system puts a lot of graphical lifting on the CPU rather than the graphics card, and leverages a voxel-based data structure to do it.

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We introduced water to ROBLOX earlier this year, and talked about the challenges of getting floating and sinking objects to behave realistically in one unified engine. We also took A Deep Look at ROBLOX’s Buoyancy and Water Physics, where we examined the complex mathematical calculations we made to integrate buoyancy into our standard contact pipeline.

Position: Senior Gameplay Engineer / Senior Software Engineer

ROBLOX is an evolving game platform and our gameplay and client software engineers are on the front lines, working on user-facing features that enable our players to push the envelope with regards to what can be built on ROBLOX. Our Software Engineers build features into our platform that users can leverage to make awesome games. Speaking of awesome games…

With the ever-popular zombie survival game Apocalypse Rising, user Gusmanak marked his triumphant return to ROBLOX after drawing inspiration from Day Z, a popular add on to ArmA 2. He took the overall concept–surviving, carefully selecting who you trust, and scrapping for parts and ammo–and shaped a game unlike anything ever released on our platform before. Apocalypse Rising became a smash hit on ROBLOX–it’s been played nearly 6.8 million times at the time of this writing.

It’s not all about games, though, particularly when it comes to building in a virtual world. User and inventor TakeoverTom created some really innovative machinery on ROBLOX that featured realistic suspension coils, motors, and eventually a full blown mech (which you can drive, by the way). User Geico480 has also created some incredibly detailed machines, including stud-by-stud recreations of BMW cars, and highly detailed train models.

Position: Senior Network Programmer

At ROBLOX, one of our biggest fundamental goals is to create the most scalable, physically simulated online environment, ever. Pivotal to this vision is a stable and robust networking layer.

In October, Kevin He was working on Smoothing ROBLOX Character and Vehicle Motion to eliminate “stuttering”, an unfortunate graphical glitch that stemmed an unfortunate interaction between our physics system and our networking library.

We need a high performance networking system, because users will always push the limits of what can be done with our platform. Take user Agent767 for example–he turned Crossroads into a fully destructible environment–every wall, floor, tree, and building can be blown to thousands of pieces, and he created a stud counter so you can witness how many new parts you’re creating in real time.

Position: Senior 3D Physics Engineer

Realistic distributed physics simulation is a core part of what makes ROBLOX, well, ROBLOX!

Kevin He recently made changes in the physics engine that made physics performance rocket up to 4x faster by modeling collisions with impulses, rather than springs. The Impulse Solver dynamically shifts how parts collide without sacrificing anything more than invisible details. Keep an eye out on ROBLOX Battle, as we’re planning on turning this feature on later in the week.

Kevin has also done extensive work on Enhancing Water Physics to Support Rear Propellers, which allowed vehicles to detect thrust from various angles, including the rear (vehicles could only detect thrust from the sides, prior to this). He also worked to create Robust Joints and Motors–ensuring that propellers would stay rigid and strong under water to simulate fan-based movement.

Position: Senior Systems Engineer

The ROBLOX services ecosystem is highly performant, super scalable, and only modestly complex. We’re looking for people who live and breathe systems architecture to help us keep it that way. Our Systems Engineers live behind the scenes–as a matter of fact, a lot of things happen behind the scenes when you click the various buttons and links that populate ROBLOX.

We try to make joining games in ROBLOX as simple as possible–you find the game you want to play, and hit the big shiny green “Play” button to jump in and start gaming. On our end, it’s not so simple. When you click that button, it actually sets off a surprisingly complex cascade of events that work together to get you into your chosen game as quickly and efficiently as possible.

Changing your appearance is another example of something that seems like a simple procedure, but is actually quite complex. On your end, you click a few buttons, and you’re done. On our end, another separate series of intertwining events occur to change your ROBLOXian and display those changes in real time.

Position: Web Automation Engineer

The Web Automation Engineer tests, tests, and tests some more, running candidates through thousands of tests, rolling out across hundreds of servers every single day.

We recently wrote about our Automated Web Testing procedures here at ROBLOX–it’s a lot more complicated than you might think. Test cases are written in code, which allows us to create complex interactions and replicate behavior of real-life ROBLOX users.

About Alan "JacksSmirkingRevenge" Fackler

Communications Specialist at ROBLOX. JacksSmirkingRevenge on ROBLOX; @JacksColdSweatX on Twitter.

60 thoughts on “ROBLOX is Expanding to Continue Innovating

  1. Thecomputerizer

    We need Roblox fr android it would be very simple just to trnsfer it to another operating system with a few edits.

    1. yellowcrash10

      Um… Unix (iOS) and Linux (Android) are two completely different types of operating systems.

      1. Gamert7

        Android is based off of Linux. In example it uses the Linux Kernel (“2.5.06”). But, Android is not Linux.

        Linux is based off of Unix. All Terminal commands in Linux are actually Unix Commands.

        IOS is based off of the Mac OS. IOS is not Linux or UNIX.

  2. Loverolos

    I think we should be able to play games on the roblox app whilst on the Ipod touch and smaller devices. Also we should be able to go onto other’s profiles and follow them and such.

  3. Anonymous

    Wow this shading shall make Roblox epic in many different ways! Now it’s making Roblox more realistic and perfect!

  4. Thirethewarrior

    cant wait for the next big thing for ROBLOX.
    gonna be epic!
    May the Chicken be with you.

  5. SoggyWaffleFacedGirl

    Please start working on ROBLOX for Linux, either downloadable on the Pi Store, the Ubuntu Software Center, Synaptic, or whatever software downloaders out there for Linux. Synaptic would be preferable ;)
    Happy Bloxxing!

  6. TheEpicJax

    Wow ROBLOX, you have come so far.

    In 2006, ROBLOX was a simple, multiplayer game.

    Now in 2013, ROBLOX has one of the most realistic

    physics out of any other block game. Good job guys.

  7. Krabbyday8

    Hooray. Many hopes for the new lighting, but as always, there must be choices for if you want it on your game or not.

  8. MayorMcFlaim

    Job openings? :D :D :D

    My list of things for Rblox to accomplish for 2013:

    Roblox for Android
    Roblox 3.0 morph
    More realistic character movement
    Voice Chat for 13+
    Better Anti-Hacking software….or hire Counter-hackers (me)
    More skin colors
    Bigger servers, less lag
    CGI animation
    More Admins
    P.S. If you get the RoosterTeeth crew to make a Roblox forum I will give you $100.
    I like chicken

    1. axelvts

      Do you happen to have other job openings, like for example: (concept) Artists, idea team, mesh/ hat/ gear maker, gear scripters? If so I would LOVE to move down to California in a few years to start working.

  9. ChucklestheGoblin

    I watched the Job Video yesterday… I can’t wait for the dynamic lighting!

  10. Charleypuppy

    You guys are amazing! You have inspired me so much! Honestly, I applied for a High School in which only 50 kids are accepted into its science/computers/engineering academy. I found out I made it last week. I am doing my best to learn scripting, buying the lua book and going onto the lua learners website. I wouldn’t have probably gone into this if it wasn’t for ROBLOX. All I wanted to say was THANKS!

  11. Legoplane123

    Amazing, truly amazing.

    I’ve been wanting to work at Roblox ever since I could start type-chatting on here!


  12. McVisibility

    Whoa, this was interesting to read on the bus to college.

    Seriously, can’t wait for the lights and shadows update!

  13. BombHunter2000

    I like the L&S video. And I wish Robloxians got knees and elbows so they can move quite more realistically. I wouldn’t recommend it though because it will take ages and energy.

  14. orobeast

    I hope to get an internship here after I graduate. For now, I’ll just do my best to learn programming.

  15. Jammintoad

    Cool, I hope you expand in the way you want, and deliver a better user experience :)

  16. Monk

    The Lighting should certainly improve things. However I still feel some basic features that a lot of players want are being ignored such as being able to add animation, mesh and sound like we use to be able to do. It’s understandable that a program for making these things could be too complicated for many players, although players did pick up on learning scripting which is always hard up first especially for kids so I think a leap of faith should be done and allow players to atleast play with some features of designing animation and mesh and sound.

  17. Niceonefoo

    You guys should consider hiring people to make video guides, and tutorials as well for the community.


    Wow, so much info O_o keep at the anti-lag issues such as the physics, ROBLOX is actually getting good updates now, also looking forward to rear-propeller & dynamic lighting.

  19. Rockface444999

    I hope you guys show alot of this stuff at the RGC in Chicago! I can’t wait to see what features you guys will show!

  20. SPIRITnU

    If I was old enough, I would love to work at ROBLOX. That and if I knew how to code better. MUST LEARN HTML/JAVASCRIPT!!!!

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