HN user

rwitoff

170 karma

JPL → Coinbase → Google → Unit 410 → Coinbase

[ my public key: https://keybase.io/witoff; my proof: https://keybase.io/witoff/sigs/G0bVxHtzRp4ALbVWewtkLPzMTDjELfwtbe0-d5ImkbE ]

Posts22
Comments23
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www.coinbase.com 8mo ago

Coinbase: Migrating from EC2 → EKS

rwitoff
2pts0
www.coinbase.com 8mo ago

Nodesmith: Automated Blockchain Node Upgrades

rwitoff
1pts0
www.coinbase.com 11mo ago

Optimizing Market Data Architecture at Coinbase

rwitoff
1pts0
gitlab.com 6y ago

Horcrux: A Shamirs Secret Sharing CLI

rwitoff
2pts0
github.com 7y ago

Salus: Coinbase’s continuous security analysis tool

rwitoff
1pts0
engineering.coinbase.com 9y ago

How Coinbase Engineering Teams Work

rwitoff
1pts0
www.hashicorp.com 9y ago

Terraform 0.8 Released

rwitoff
4pts0
medium.com 9y ago

Proactive Cloud Security w/ AWS Organizations

rwitoff
1pts0
medium.com 9y ago

ALB Log Analysis with AWS Athena

rwitoff
2pts0
medium.com 9y ago

Scaling and Developer Productivity at Coinbase

rwitoff
4pts0
developers.coinbase.com 10y ago

Coinbase Bug Bounty Transparency Update

rwitoff
2pts0
github.com 11y ago

Self Service IAM Policies

rwitoff
5pts1
json.jpl.nasa.gov 12y ago

NASA Opens Mars Downlink JSON Pipeline

rwitoff
4pts1
robz.posthaven.com 12y ago

Gmail Style Keyboard Shortcuts in Apple Mail

rwitoff
1pts0
news.ycombinator.com 13y ago

Ask HN: Does a self hosted Google Spreadsheet like tool exist for NASA?

rwitoff
3pts2
robz.posthaven.com 13y ago

Coding For Fun

rwitoff
1pts0
www.southampton.ac.uk 13y ago

Supercomputing on a Raspberry Pi

rwitoff
4pts0
robz.posthaven.com 13y ago

Coinbase Availability Alerts

rwitoff
6pts0
browserage.com 13y ago

Show HN: What's Your Browser's Age?

rwitoff
56pts69
proggers.posterous.com 13y ago

Visualizing Startups & the Space Program: What's your DOD?

rwitoff
15pts8
proggers.posterous.com 14y ago

Programming with RSI

rwitoff
3pts0
proggers.posterous.com 16y ago

Push SMS w/ Google Voice + Python

rwitoff
21pts6

In practice, cramming all this into the same account doesn't work. Segment is following best practice here.

For example, IAM doesn't provide the granularity in resources and conditions that you'd want to effectively isolate the blast radius of developer keys. ec2:TerminateInstances didn't (doesn't?) support VPC level conditions, so being able to terminate one instance meant you could terminate all instances.

Similarly, you might want your engineering team to iam:PutUserPolicy in development, but have a much more restricted group in production which isn't possible with IAM today.

I've taken this pretty far in the past to attempt segmenting within one account, but always run into limits: https://github.com/witoff/self-service-iam

Yep - See some of the work my last team published here while we were rebuilding deployment tooling: https://blog.coinbase.com/scaling-developer-productivity-d23.... For hard to measure metrics, softer measurements like repeated team surveys work fine too.

I'd be cautious of directly measuring "assistance" outside of peer input in perf to avoid an unhealthy incentive. The most helpful people I've worked with in the past tend to grow through strong peer reviews and having the most opportunities to join new projects.

The OP here really misses the point of demonstrating impact. Doing the right thing ethically then for the business is a strategy that is, well, rarely the wrong thing. Optimizing just for getting promoted might is a greedy strategy that might get you promoted once, but good luck finding peers that want to work with you again.

AWS S3 Outage 11 years ago

same here. our s3 services are reporting similar 503's and network timeouts. a few of our partners are already down as well with their own 500s. another stormy night in the cloud.

After 3 scrubs most of our non-critical colleagues left the cape, but the view of our payloads in the trunk after 2nd stage sep made it all worthwhile. It's amazing what SpaceX has been able to accomplish and reinvent in a business this risk-averse and I can't wait to see what's next.

I was the Launch Systems Lead for one of the primary payloads on this flight and was surprised when they announced this but excited to watch it happen (or attempted). Almost every Falcon/Dragon flight is innovating in multiple major ways which is NOT how Aerospace normally works, but why many of us we chose to work in the industry and a refreshing change.

Since this is the first request for collaboration with NASA we've seen on HN, are there other obvious problems you'd like to independently analyze with us? ISS? Rovers? Navigation? Deep Space Networking? (etc)

In practice this is an interesting problem for ISS. Considering the varying contingent of shadow-casting (and reflecting!) payloads, orbital replacement units, visiting vehicles and robotic elements the station's geometry is constantly changing. Then we have to consider system and lifespan effects. Solar array orientation alters the corresponding equilibrium attitude of the station and thereby the need for gyro and thrust stabilization. Along with problems we've had with overuse of the solar array rotary joints, there is a lot to consider after and optimal array orientation is found. Space is expensive.

It approximates how long it's been since your browser was released and aggregates other stats based on referrer. I'm asserting that site's being visited by newer browsers are gathering a more tech savvy crowd.

The same concept can easily be applied to any tool listening on port 25.

Also, the text to speech portion can be accomplished with festival on linux and SAPI on windows.