Julian Tellez

Senior Software Engineer at Sky

London, England, United Kingdom
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Summary

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Senior
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Top School
Julian Tellez is a Senior Software Engineer based in London with roughly ten years of experience, specializing in high-performance streaming systems and real-time services. At Sky, he leads efforts to enhance video experiences on chromium-based browsers, developing adaptive bitrate algorithms, refining bandwidth estimation, and optimizing buffering and latency. Previously at Utility Warehouse he implemented cloud-native architectures using Kubernetes, Docker and Kafka, with a strong focus on observability via Prometheus and Grafana. At DAZN, he expanded HTML5 playback across devices like Xbox, SkyQ, FireStick, and smart TVs, and contributed to video players including Shaka, dashplayer, and exoPlayer while shaping streaming protocols and CDN strategies. Earlier roles at Plentific showcased full-stack capability with isomorphic landing pages, a React-based email service, a B2B dashboard, and a payments service. With formal training in audio production from Middlesex University and SAE Institute, he brings a unique sensibility for media quality that informs scalable software engineering.
code10 years of coding experience
job10 years of employment as a software developer
bookBachelor of Science (B.Sc.), Audio Production, 2.1, Bachelor of Science (B.Sc.), Audio Production, 2.1 at Middlesex University
bookAudio Engineering Diploma, Audio Production, Audio Engineering Diploma, Audio Production at SAE Institute London
languagesEnglish, Spanish
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Stackoverflow

Stats
832reputation
204kreached
11answers
0questions
Badges
reactjs
top-5%
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Github Skills (121)

scaffold10
babel-loader9
slug9
dotfiles9
plugin9
webpack-plugin9
cycle9
raspberry9
react9
reactjs9
checker9
life-cycle9
shell8
cli8
command-line-interface8

Programming languages (8)

TypeScriptHCLShellC++MakefileJavaScriptGoSwift

Github contributions (5)

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freemiumvpn/fpn-app

Nov 2020 - May 2021

https://freemiumpn.com/ The Freemium VPN client
Contributions:53 commits, 103 PRs, 100 pushes in 5 months
vpn-clientvpnwireguardvpn-serverfreemium
typescript-react starter
Contributions:13 PRs, 44 pushes, 16 branches in 2 years 8 months
reacttemplateboilerplatereact-typescript-starterreact-starter
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Julian Tellez - Senior Software Engineer at Sky