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Engineering
A Key Expired in Redis, You Won't Believe What Happened Next
One of Grab's more popular caching solutions is Redis (often in the flavour of the misleadingly named ElastiCache), and for most cases, it works. Except for that time it didn't. Follow our story as we investigate how Redis deals with consistency on key expiration.
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Engineering
How Grab Hires Engineers in Singapore
Working at Grab will be the “most challenging yet rewarding opportunity” any employee will ever encounter.
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Engineering
Battling with Tech Giants for the World's Best Talent
Grab steadily attracts a diverse set of engineers from around the world in its three R&D centres: Singapore, Seattle, and Beijing. Right now, half of Grab’s top leadership team is made up of women and we have attracted people from five continents to work together on solving the biggest challenges for Southeast Asia.
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Engineering
This Rocket Ain't Stopping - Achieving Zero Downtime for Rails to Golang API Migration
Grab has been transitioning from a Rails + NodeJS stack to a full Golang Service Oriented Architecture. To contribute to a single common code base, we wanted to transfer engineers working on the Rails server powering our passenger app APIs to other Go teams.
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Grab Vietnam Careers Week
Grab is organising our first ever Grab Vietnam Careers Week in Ho Chi Minh City, Vietnam, from 22 to 26 October 2016. We are eager to have more engineers join our ranks to make a difference to improving transportation and reducing congestion in Southeast Asia. We are now on 23 million mobile devices supported by 460,000 drivers in the region, but we're only started and have much more to achieve! To find out more about Grab, take a look at our corporate profile at the end of this post.
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GrabPay Wins Best Fraud Prevention Innovation at the Florin Awards
I am honoured to receive the Best Fraud Prevention Innovation (Community Votes) Award at the 2016 Florin Awards on behalf of Grab. For those of you who voted for Grab, we thank you for your support that made this award possible.
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Engineering
Round-robin in Distributed Systems
While working on Grab's Common Data Service (CDS), there was the need to implement client side load balancing between CDS clients and servers. However, I kept encountering persistent connection issues with Elastic Load Balance (ELB).
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Design
Why Test the Design with Only 5 Users
The reasoning behind small sample sizes in qualitative usability research.