Mobile Practice Case Study

Challenge

The main problem was developing a highly scalable video education SaaS platform for Fortune 5000 companies. The app had to be combined with the Serverless approach for video transcoding, with low latency video streaming in EU and US regions. Another challenge was to convince the client to use AWS Lambda with another set of other AWS services due to potential vendor lock. Also, there was a challenge to set up a video recording in the IE, but it is already solved.

Solution

We proposed an AWS platform with a Serverless approach for video transcoding and API by implementing AWS transcoder, Lambda, S3, API Gateway, CloudFront, DynamoDB, Firebase, MongoDB, and Sentry. We applied the serverless framework for deployment and CloudWatch to monitor Lambda functions. This technical approach allowed us to build a highly-scalable product build a highly-scalable product for big clients of Mobile Practice with low latency streaming in the EU and US.

Provided services for Mobile Practice project

Web frontend

001
We built a progressive web app, utilising the latest web standards with in-browser video recording for supported devices
002
We ensured compatibility by delivering an installable desktop app (Electron) for users without modern browsers, which was user installable in corporate environments
003
We built real-time chat and content updates using Firebase and integrated an access control system into the application
004
We used Atomic Design, resulting in highly reusable and scalable UI components

Our Web Development

Backend

001
We delivered Serverless microservice like video transcoding on events coming from Amazon S3, providing better cost-efficiency
002
AWS Lambda use case was applied for video and image processing and as an API for the backend
003
Lambda function triggered by AWS API Gateway or S3 sends a file for transcoding to AWS Transcoder, then stores HLS or DASH stream back on S3, while progress and metadata are stored in DynamoDB
004
We use the Serverless framework to manage Lambda functions to deploy each of them separately or all of them at once
005
We use serverless monitoring tools to track the app performance and avoid critical issues

Our Web Development

Quality assurance

001
The test processes were established from scratch as all the requirements were thoroughly clarified with the clients
002
The test design was done from scratch, too. So the test cases were implemented based on the test design
003
Web, iOS, admin, and desktop applications for learners and coaches were successfully released
004
Main challenges the QA team faced: verification of video recording and playing functionality, localization, chat flows, and email notifications testing on all supported browsers, OSs, and devices within a short time frame

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What the customer says about work with us

Their attention to detail in the development phase has meant that our product doesn't have any problems when it's released to customers. In fact, we've already made some sales on it, despite this being an early version of the software. Users are finding it sufficiently functional and robust even in its current state, which is promising for the future as we add more features.

Ben Eddy

CO-Founder at Mobile Practice

FinTech

Why TechMagic?

TechMagic is a software development company with a presence in Krakow, Poland and Lviv, Ukraine. We focus on narrow technology and help startups, and enterprises start, grow, and scale their business. To hire a dedicated development team in Poland or Ukraine means to increase the capacity of your team with high-performing professionals.

We have expertise in JavaScript, Salesforce, Serverless, and Native Mobile. With strong values, management experience in web application development, and an active local community we always involve talented engineers to provide quality services to our clients!

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About us

Narrow tech focus

Constant stack since 2014
Strong knowledge sharing
Deep expertise in selected areas

Local community brand

Regular tech meetups
Own tech communities
In-house training centres

Best engineers

Solid technical knowledge
Advanced communication skills
Shared corporate culture