HN user

justicz

1,234 karma

max@chargerobotics.com

https://justi.cz/

Posts23
Comments126
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enclose.horse 6mo ago

Enclose.horse

justicz
2pts0
www.youtube.com 9mo ago

Saturn Data – FPGA-accelerated server for high-memory high-bandwidth workloads [video]

justicz
7pts2
rocket-drone.lol 2y ago

Rocket Drone: My coworker made this game and sniped the whole office

justicz
5pts1
www.fastcompany.com 2y ago

Robotic arms that assemble panels on solar farms

justicz
156pts90
news.ycombinator.com 3y ago

Ask HN: Where are all the mechanical engineers?

justicz
37pts32
www.legends.solar 4y ago

Legends Solar – Buy operating solar panels on commercial solar farms

justicz
179pts160
news.ycombinator.com 4y ago

Launch HN: Charge Robotics (YC S21) - Robots that build solar farms

justicz
169pts81
peter.website 5y ago

Cryptanalysis of Meow Hash

justicz
2pts1
justi.cz 5y ago

Hacking 3M apps at once through CocoaPods

justicz
2pts0
twitter.com 5y ago

“modern phone encryption sort of sucks”

justicz
52pts8
justi.cz 5y ago

Fun with LCDs and Visual Cryptography

justicz
4pts0
xpenguins.seul.org 6y ago

XPenguins

justicz
1pts1
giveanet.org 6y ago

Show HN: A site I built to donate 10k mosquito nets to charity

justicz
6pts1
giveanet.org 6y ago

Show HN: A site I made to donate 10k mosquito nets to charity

justicz
3pts1
justi.cz 7y ago

Remote code execution vulnerability in apt/apt-get

justicz
416pts160
justi.cz 7y ago

Privilege Escalation in GVisor, Google's Container Sandbox

justicz
4pts0
daniel.haxx.se 7y ago

More curl bug bounty

justicz
3pts0
justi.cz 7y ago

Remote Code Execution in Alpine Linux

justicz
286pts106
justi.cz 7y ago

Remote Code Execution on packagist.org

justicz
19pts1
justi.cz 7y ago

Show HN: BountyGraph: Crowdfunded Bug Bounties and Security Audits

justicz
23pts8
justi.cz 8y ago

Compromising Thousands of Websites Through a CDN

justicz
3pts0
justi.cz 8y ago

Remote Code Execution in CouchDB (and Privilege Escalation in the Npm Registry)

justicz
68pts12
blog.rubygems.org 8y ago

Unsafe Object Deserialization Vulnerability in RubyGems

justicz
2pts1

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Hey HN! One of my best friends + the best programmer I’ve ever met, Peter, just launched his startup. He is building an FPGA-accelerated server for high-memory, high-bandwidth applications. His video is hilariously technical and I hope that by posting this here it can make it in front of the right people.

From his LinkedIn Post [0]:

“My cofounder and I are making an FPGA-accelerated server for high-memory high-bandwidth workloads. A single 2U box will have terabytes of DRAM, terabytes per second of memory bandwidth, over a petabyte of flash, and most unusually, about a terabyte per second of bandwidth to said petabyte of flash.

We're looking for one or two companies to partner with; we'll do the work to port your application to our hardware. Please reach out if you've got a tricky workload! I'd love to see if we can make your heavy workload faster, bigger, and much cheaper.

In particular, I think our hardware is an excellent match for search and vector database workloads, so if you're in the space I'd love to hear from you.

You can message me here, email me at peter@saturndata.com, or grab a call on my calendar: https://lnkd.in/efFiprWr

[0] https://www.linkedin.com/feed/update/urn:li:activity:7386816...

Charge Robotics | Robotic System Operator | Full-time travel (on job sites) Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, driving forward field operations of our robotic factory, working with engineers, and helping install gigawatts of clean energy generation.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics System Operator: https://jobs.ashbyhq.com/charge-robotics/ff699232-5b36-40c2-...

Charge Robotics | Mechanical Engineer | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Mechanical Engineer: https://www.workatastartup.com/jobs/64008

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Mechanical Engineer: https://www.workatastartup.com/jobs/64008

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Mechanical Engineer: https://www.workatastartup.com/jobs/64008

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Mechanical Engineer: https://www.workatastartup.com/jobs/64008

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Electrical Engineer: https://www.workatastartup.com/jobs/69674

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Electrical Engineer: https://www.workatastartup.com/jobs/69674

Lead Technician: https://www.workatastartup.com/jobs/69838

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Electrical Engineer: https://www.workatastartup.com/jobs/69674

Lead Technician: https://www.workatastartup.com/jobs/69838

Charge Robotics | Senior Robotics Software Engineer | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented software engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life. Your work will involve architecting, developing, and maintaining high-quality code and documentation for our fleet of robotic delivery vehicles.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/51266

P.S. I am specifically excited about hiring for this role -- we have a brand new system we're building the stack for from the ground up, and this role will have an especially big impact imo.

Charge Robotics | (Entry Level - Senior) Mechanical Engineer | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented mechanical engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/64008

Charge Robotics | Senior Mechanical Engineer | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented mechanical engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/64008

Charge Robotics | Senior Mechanical Engineer | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented mechanical engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/64008

Thank you HN/WaaS for helping us fill our last software role! We're still hiring but for Mechanical Engineers.

Charge Robotics | Senior Mechanical Engineer | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented mechanical engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/64008

Thank you HN/WaaS for helping us fill our last software role!! We're still hiring but for Mechanical Engineers.

Charge Robotics | Senior Mechanical Engineer | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented mechanical engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/64008

Charge Robotics | Senior Software Engineer (Full-Stack) | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented full-stack software engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factories to life. Your work will involve architecting, developing, and maintaining high-quality code and documentation for a web application that controls our fleet of fully-automated factories

Come work with us if you love:

* Greenfield web application development

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/67459

Charge Robotics | Senior Software Engineer | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented software engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life. Your work will involve architecting, developing, and maintaining high-quality code and documentation for our fleet of fully-automated factories

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/51266

Charge Robotics | Senior Mechanical Engineer | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed startup building robots that build large-scale solar farms. We just got back from the first commercial deployment of our system on a real-world solar construction site.

Check out a video of our system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. We're looking to bring another talented mechanical engineer onto our small team.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Apply here: https://www.workatastartup.com/jobs/64008

One of the coolest parts of our job is figuring out what tweaks we can make to the process to make things more robot-friendly!

One thing we're already doing that's different from human installers is the bay pre-assembly approach you can see in our demo video, where we build chunks of 5-9 modules on a tube and carry them out to the field. Ordinarily humans put up all of the tubes, then all of the brackets, then all of the modules. The pre-assembly approach allows us to do a bunch of work in a more controlled factory environment on a different part of the site.

Longer term there are other ideas we have, but since everything has to last for 30-40 years out in the field you have to be very strategic about making the big changes...

Hey thanks! The trouble with the origami racking approach is that the engineering decisions you make to build a portable, foldable racking system go in some different directions from what makes the best hardware for long-term, large-scale installations.

A couple of ways this shows up: 1. making your system rugged to handle extreme weather. These sites need to last 30-40 years without breaking, which pushes you to use pretty heavy + large components. Piles get driven several feet into the ground, so even with unfolding systems you're still probably pile driving. 2. tracking -- adding the complexity to enable rows to rotate to face the sun makes it harder to make the system portable. Basically all large-scale solar getting built is single-axis tracked. 3. module cleaning -- it's important that vehicles can traverse rows to clean dirt off of modules on a regular basis. Having structure that connects the rows together may make this more difficult.

None of these are intractable on their own but together they make the approach you describe very difficult.