SAEED ISSAH
Gelsenkirchen
Summary
Complex problem-solver with an analytical and driven mindset. Dedicated to achieving demanding development objectives according to tight schedules while producing impeccable code.
I am currently in the freelancing space to help companies on their product development journey
Overview
10
10
years of professional experience
Work History
Freelance Senior Software Developer
Arc
2022.01 - Current
- Analyzed complex software problems and devised efficient solutions using industry standards
- Implemented a Serverless solution to complex problems to reduce cost and maintenance. This solution also increases the platform's availability up to 99.99%
- Analyzed potential security loopholes and implemented security patches accordingly
- Refactored code into suitable and logical components for easy debugging and maintenance
Senior Mobile Developer
Tonies GmbH
2021.08 - Current
- Collaborated with backend and design teams to design the new Tonies App Helped build the Tonies app from a web based app to a fully fledged React Native app using technologies like Mobx, Atom design system, React Query, Apollo
- Collaborated across multi-disciplinary teams using Agile development frameworks.
- Resolved app defects by reviewing bug reports and tracking repeatable malfunctions using Sentry and Google Play Store.
Collaborated across multi-disciplinary teams using Agile development frameworks to help streamline the App development and release cycles Helped onboard new team mates by pair-programming with them on their first two/three tickets - Improved automated test coverage by implementing Detox (e2e) and Jest (Unit, Integration and Regression tests)
Contract Software Engineer
Greator GmbH
2021.01 - 2022.08
- I helped build the company's AWS infrastructure which employed a Severless architecture called Harmony. I was responsible for orchestrating the specific events and their corresponding actions(lambda invocation).
- During the first two months, I was part of a team of frontend engineers building the company's first product; a personality test web app. I was responsible for the Redux layer; this employed redux-persist, redux-saga. Also, I helped implement the API integration using Axios. https://personality.greator.com/
- Currently I am part of the App team building the company's first mobile app. This is a React Native app. I am responsible for the app's navigation using React Navigation V5 and the various deep linking into the app. Also, I did the integration into RevenueCat; the app's subscription service.
Senior Software Engineer
ECAMPUS LLC
2014.03 - 2022.01
- Together with other partners, we designed and developed the platform's backend services using Laravel, MySQL(RDS), Redis, SQS, ECS
- Design and developed eCampus' web app using Typescript, React, Redux, Redux saga, Redux persist, Redux actions, and React material.(https://web.ecampus.camp/)
- Designed and developed eCampus' Android app. The app was first built with Java using Retrofit for network calls, SQLite for offline storage and caching, and a custom event bus for message publishing and consuming.
- Refactored the Android app using the MVP architecture.
- Refactored the Android app to use an MVVM architecture with the introduction of architecture components
- Rebuilt the app using 100% Kotlin. (https://play.google.com/store/apps/details?id=equinos.e_campus_1)
Contract Software Developer
GuavaHR
2020.04 - 2020.12
- Together with the CTO, I help designed and implement a modularized Laravel backend service comprising of MySQL, Redis, ElasticSearch and AWS ElasticBeanstalk,
- Implemented a fast and cost-effective image manipulation service using Amazon Cloudfront, Amazon API Gateway, AWS Lambda and S3. The Lambda function was written using the NodeJs Runtime. The NodeJs code uses the Sharp Library for the image manipulation.
- Helped develop the webapp of GuavaHR using React, Redux, React Saga, Redux Persist, Redux Action, React Material, and Javascript. My role in the webapp development varied from API consumption, to adding a Redux state, to UI design
Senior Software Developer
FINNAIR
2019.12 - 2020.12
- I was part of Finnair's Internal App's team responsible for building services for planning flight schedules.
- I helped build a service called Polaris(Polar Information System) which extensively uses AWS Resources. I was responsible for the core layer of the system which comprises of interfacing into RDS(Postgres), an Apache Kafka like service using Lambdas called Lafka, SQSs and RDS and integrating into legacy IBM Message Queues.
- I build a service that integrates into Polaris for handling customer claims(e.g flight cancellation). This services makes available, an SQS Queue to receive flight updates from Polaris. The SQS queue invokes a Lambda which then process the data and finally makes an API call to Silta(a Salesforce service)
Contract Software Developer
YUMUUV
2019.07 - 2019.12
- Developed and maintained YuMuuv's website and web app using React, Redux, Redux Saga, Redux Persist, React Material, Redux Actions, and Typescript(https://yumuuv.com and https://app.yumuuv.com/login)
- Developed and maintained the product's backend which is built with Spring Boot and Java with a Postgres database.
- Orchestrated the platform's cloud infrastructure using Google Cloud Platform. The infrastructure included Load balancers, Docker integrations, Logs monitoring, VM Instances and Instance Groups.
- Helped designed the platform's CI/CD pipeline using Bitbucket Pipelines.
Full Stack Engineer
DEVOLON
2018.12 - 2019.08
- Implemented a logging service that ships logs to AWS DynamoDB.
- Implemented a log viewer which shows formatted logs from AWS DynamoDB.
- Implemented SIM and ICCID extraction feature from station boot notifications.
Education
Bachelor of science - Computer science and engineering
UNIVERSITY OF MINES AND TECHNOLOGY
2015
Skills
- Node
- AWS
- React
- React Native
- Laravel
- Java
- Kotlin
- PHP
- Typescript
- Javascript
- Android
- Vue
Timeline
Freelance Senior Software Developer
Arc
2022.01 - Current
Senior Mobile Developer
Tonies GmbH
2021.08 - Current
Contract Software Engineer
Greator GmbH
2021.01 - 2022.08
Contract Software Developer
GuavaHR
2020.04 - 2020.12
Senior Software Developer
FINNAIR
2019.12 - 2020.12
Contract Software Developer
YUMUUV
2019.07 - 2019.12
Full Stack Engineer
DEVOLON
2018.12 - 2019.08
Senior Software Engineer
ECAMPUS LLC
2014.03 - 2022.01
Bachelor of science - Computer science and engineering
UNIVERSITY OF MINES AND TECHNOLOGY
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