Amadou Bah

On assignment at SNCF.

1 – Migration of a transverse backend for various SNCF frontend applications (on-board control, PV writing, crew management, boarding gates) from Scala to Java Quarkus with Serverless: AWS Lambda.

2 – Writing new developments in Java Quarkus as AWS Lambdas.

3 – Writing IAC (Infrastructure As Code) via Terraform and deployment to the integration environment.

4 – TMA (Third-Party Application Maintenance) of Scala Backend modules (Akka Stream) not yet migrated to AWS Lambdas.

5 – Technical scoping study for complex functional subjects to break them down and propose various technical solutions and facilitate the breakdown of user stories.

Agile work methodology (Scrum).

BACKEND DEVELOPER – JAVA/SCALA

Analysis and development

● Functional analysis

● Task development

● Testing and integration

● IAC writing

● Deployment to integration environment

Proactive contribution

● Proposal of corrections to functional analysis

● Proposal of tools to the team

● Contribution to process improvement during agile ceremonies

TECHNICAL ENVIRONMENT:

AWS Cloud (Lambda, MSK, DynamoDB, CloudWatch, API Gateway, S3, IAM, SSM, …),

Gitlab CI, Docker, Terraform, Java Quarqus, Openapi, Scala, Akka http, Akka

streams, CQRS/Event Sourcing, Kafka, Gitlab CI, Redis, Lambda, Cucumber

Development of graphical interfaces for "Box" internet and connected TVs using a homemade JavaScript framework.

The work team consists of 8 developers, 2 testers, 1 Scrum Master, and 1 Project Manager. The work environment is SCRUMBAN, a mix of Scrum and KANBAN.

Writing technical documentation for new joiners.

FRONTEND DEVELOPER - JAVASCRIPT

Analysis and development

● Functional analysis

● Task development

● Testing and integration

Proactive contribution

● Proposal of corrections to functional analysis

● Proposal of tools to the team

● Contribution to process improvement during agile ceremonies

TECHNICAL ENVIRONMENT

Technical environment: Javascript, Gerrit, Git, Jira,

Development of micro-services for an ERP SaaS using concepts and technologies such as: Event Sourcing/CQRS, Scala (with Lagom), Kafka within a team of 7 developers (4 in front-end and 3 in back-end).

Agile work environment (SCRUM).

DEVOPS TASKS: Implementation of part of the observability of the Altior ERP through monitoring of the micro-services in the Kubernetes cluster on Grafana with Prometheus and Kamon.

Centralization of logs (initially on Kibana) on Grafana with Loki and Promtail.

Documentation of DevOps tasks.

TECHNOLOGICAL WATCH: Research for a tool or method to facilitate micro-service builds in the development environment. Testing tools such as: Telepresence, Skaffold, JFrog.

BACKEND DEVELOPER - SCALA

Analysis and development

● Functional analysis

● Task development

● Testing and integration

Proactive contribution

● Proposal of corrections to functional analysis

● Proposal of tools to the team

Functional and technical design

● Improvement of business documentation (User Stories)

● Documentation of development tasks

TECHNICAL ENVIRONMENT

Technical environment: Event Sourcing/CQRS, Scala, Lagom, Kafka, Kamon, GCP, Kubernetes, Docker, Grafana, Prometheus, Cloud Build, CI/CD, Telepresence