Work:
- Company: MBition GmbH.
Title: Senior Build Engineer (SRE)
Duration: Apr. 2023 - Present
Location: Berlin, Germany
Tasks:
- Improved the execution time of the build step from 60+ minutes to be ~6 minutes.
- Improved the generation of Logical Blocks step time from 90+ minutes to be ~60 minutes.
- Improvements on pipelines' stability (10% less failures due to pipeline issues).
- Identified problems with pipeline architecture, and created the project specification for fixing them.
- Supported other teams on refactoring, and architecting pipelines for better stability/performance.
- Rewrote parts of the pipeline in golang/Docker to improve performance, stability,
and releases LTS.
- Daily buisness of providing (L2/L3) support for other teams as part of the build enablement team.
- Company: Springer Nature AG & Co. KGaA
Title: Platform Engineer
Duration: Feb. 2022 - Aug. 2022
Location: Berlin, Germany
Note:
Worked as part of the Engineering Enablement team, who provides infrastructure, internal tooling, docs,
CloudFoundry platform, and Kubernetes clusters, to help the development teams with their daily tasks and provide
them with a nice UX. These included:
Tasks:
- Workin on internal (halfpipe)
tooling for building CI/CD pipelines on Github actions and Concourse.
- Implementing reusable GitHub Actions workflows for deploying to CloudFoundry, Kubernetes, and Docker Registries.
- Implementing tooling to show and report Kubernetes deployment status (from CI/CD) to respective teams.
- Implementing alert-routing service, to integrate with Prometheus
alert-manager,
and sending alerts to different teams/projects, and preconfigured communication channels.
- Maintaining the team docs used by other development teams, to integrate with and use internal platforms.
- Maintaining terraform-provisioned infrastructure.
- Company: Sapera GmbH.
Title: Senior Developer/DevOps
Duration: Apr. 2018 - Nov. 2021
Location: Berlin, Germany
Tasks:
- Implemented infrastructure as code (IaC) for different projects using Terraform and Ansible.
- Standardized the deployment process (and maintained the process documentation).
- Built templates to provision infrastructure on different cloud providers and development stages.
- Built standardized workflows using CircleCI to automate deployments (for internal and external projects).
- Implemented and maintained the (Rails 5) JSON API serving our infographics portal[1].
- Maintained 99+% documentation coverage of the infographics portal[1]. API
and 90+% test coverage.
- Worked with Docker to provide deliverables for some of our external projects.
- Provided support and tutoring to work with our standard deployment workflows (internally and externally).
- Worked closely with our Systems Engineer to support with various DevOps tasks.
- Rewrote, maintained and provisioned some of the data pipelines to adhere to a better security standards.
FootNote:
[1] A working version of the infographics portal was acquired by
Scrolly Telling GmbH and still worked on by them as seen at
Five-Times or Scrlly.
- Company: LIQID GmbH.
Title: Senior Backend Developer
Duration: Mar. 2016 - Dec. 2017
Location: Berlin, Germany
Tasks:
- Maintained the RESTful API (used by admins and front-end).
- Implemented and maintained the integration with Deutsche Bank.
- Implemented and maintained the integration with Intercom
CRM.
- Implemented and maintained the Invoicing system.
- Implemented the new authentication layer using
(RFC7519: JWT).
- Implemented the Two-Factor Authentication (2FA) for user/client login.
- Integrated other services like DocuSign, PostIdent,...
- Implemented day to day business/marketing/technical requirements.
- Company: PrioriData GmbH.
Title: Full Stack Developer
Duration: Jul. 2015 - Feb. 2016
Location: Berlin, Germany
Tasks:
- Maintained the Rails web (dashboard) app.
- Optimized the scraping process of getting the data from Apple and GooglePlay stores.
- Reimplemented the scraping process completely to be 8-10 times faster.
- Reimplemented the queueing and monitoring around the scrapers for stability.
- Migrated acquired data from different resources to Google BigQuery.
- Maintained and provisioned different purpose VM instances on Google Cloud Platform (using chef).
FootNote: |
Was acquired by Airnow Data Ltd.
- Company: AskNative
Title: Backend Developer/DevOps
Duration: May. 2013 - Jul. 2015
Location: Remote, Egypt
Tasks:
- Implemented the test suite for the API.
- Implemented events booking feature via Stripe.
- Reimplemented caching for better response times.
- Maintained the Heroku stacks for staging/production.
- Reimplemented large portions of the API to follow design patterns.