I’m David Green, passionate about software and how it can make the world a better place. Cyclist, father, creator of Epic Ride Weather, PE at Amazon AWS.
Vancouver, Canada
Joined January 2009
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David Green retweeted
Assume an npm dependency is malicious. What can it actually reach?
I built a secure dev environment for Node/npm projects that keeps untrusted code away from SSH keys, cloud credentials, Docker, and trusted Git metadata.
github.com/greensopinion/sec…
Feedback welcome.
David Green retweeted
Working on contours using a modified version of the vectorvector application by @dgreen
Hacked to code to use @Mapterhorn as input and being able to separate ordinary contours from glacier, so that the output matches what @ArmyGeospatial uses in RBT.
David Green retweeted
Today I’m launching Epic Ride Weather Events: a new platform where endurance event organizers can create public event pages with route-aware race-day weather forecasts.
Better prep for participants. Better promotion for organizers.
epicrideweather.com/2026/03/…
☕ Tired of noisy neighbors impacting your quality of service? Amazon SQS Fair Queues helps maintain consistent message dwell time across all tenants!
Try it today! 👉 go.aws/4o7EZmr
David Green retweeted
Ever wished you could predict headwinds before they hit? Now you can!
Epic Ride Weather is now available on your Hammerhead Karoo, giving you real-time wind data to optimize every ride.
epicrideweather.com/2025/03/…
@hammerheadrides #Karoo #hammerhead #epicrideweather #cycling
Introducing vectorvector: An open-source CLI for generating contour lines and hillshade from elevation data. 🌍
✅ contours
✅ hillshade & terrarium
✅ processes the whole planet in ~7 hours on consumer hardware
github.com/greensopinion/vec…
#GIS #OpenSource #Mapping
What I've been doing at #AWS:
New #AWS blog post: Optimizing Amazon Simple Queue Service (SQS) for speed and scale - aws.amazon.com/blogs/aws/opt…
Appointment at @LifeLabs apparently is meaningless. Wait time of 45 minutes with appointment should not be acceptable business practice!
David Green retweeted
We’ve started deploying changes to Amazon S3 to make unauthorized requests with certain error codes which were not initiated by you to be free of charge. This change covers a range of HTTP 3xx/4xx status codes. It will take a few weeks for the roll out to complete in all #AWS Regions.
For more details check out aws.amazon.com/about-aws/wha…
You: want to work on a tier-0 distributed system
Scale is big, work is important, challenges and learning are real
SDEIII and SDEII openings in Vancouver!
amazon.jobs/en/jobs/2585281/…
amazon.jobs/en/jobs/2585303/…
David Green retweeted
2023 Year in Review: Now in 12 Languages, Garmin, Plotaroute, Search by Distance, Historical Weather, ...
epicrideweather.com/2023/12/… #epicrideweather #garmin #plotaroute #cycling #weather
Two weeks ago I deployed a thing into production. Since then it has processed over 40T (trillion!) customer requests. I’m so proud.
David Green retweeted
Very favorable winds for #RAAM2023 leaders. 🚴🏻💨💨🚀Could this be one of the fastest RAAM races ever? #raam #dotwatchers #rideacrossamerica @NoLimitsLeah
Just gave my boy a pep talk that ended with something like "You are the one that gets to decide. You choose what to do next." Isn't that what we all need?
David Green retweeted
New feature: Connect with Plotaroute for personalized weather forecasts along your route!
epicrideweather.com/2023/03/…
#plotaroute #epicrideweather #bikepacking #cycling #roadbike #bikepacking #bikelife #gravelbike #cyclinglife #gravel #biketouring #cicloturismo #adventurecycling
David Green retweeted
You can now plan routes on @plotaroute and send them direct to @epicrideweather to get detailed weather predictions for your whole bike ride.
More at: plotaroute.com/news
#routeplanner #cycling #makingroutesmadeeasy
If the system running your health checks fails, your LB won't know the status of your #Kubernetes services. 🔥🔥🔥 Health of health checks is critical for uptime. #http502
David Green retweeted
Did you know our integration w/@EpicRideWeather gives you hyper-localized forecasts based on your specific route? Get evolving metrics for wind speed/direction, temp, rain, cloud cover, and more. It's a fantastic tool that you should absolutely be using. ridewithgps.com/journal/7641…
We say that tests are flakey when they sometimes fail. The assumption is that it's meaningful when they pass. What if they're flakey when they pass? 🙀 #softwaredevelopment #testing