Mouhamad is available for hire
Hire MouhamadMouhamad Thiam
Verified Expert in Engineering
Back-end Developer
Location
Thies, Thiès Region, Senegal
Toptal Member Since
October 23, 2021
Mouhamad is a full-stack developer focused on the back end. During his seven years of experience in building and delivering solutions for the financial and travel industry clients, he became an expert in creating, exposing, and consuming APIs using Python, FastAPI, Django, JavaScript, and Node.js. Mouhamad is interested in technology innovations such as distributed ledger technology and its applications and enjoys creating solutions that work as inclusion tools and give access to minorities.
Portfolio
Rocketrip
Python, Django, FastAPI, GraphQL, MySQL, RabbitMQ, Redis, Celery, React, Apollo...
Mondee
JavaScript, Node.js, Express.js, MongoDB, Mongoose, Linux, IntelliJ IDEA...
Cosmopolitan Travel Service
Python, FastAPI, Django, JavaScript, Node.js, Express.js, Vue 2, Swagger...
Experience
Availability
Full-time
Preferred Environment
Linux, IntelliJ IDEA, Python, JavaScript, TypeScript, MacOS, Docker, REST, APIs
The most amazing...
...thing I've developed as the team lead is a booking and ticketing engine for flights with CRM, accounting, insurance, and communication modules.
Work Experience
Engineering Lead
2020 - PRESENT
Rocketrip
- Developed a sustainability module that estimates CO2 emissions for the clients' past and current trips, helping to offset the harm they did to the planet by presenting reliable dashboards.
- Created a module for travel restrictions that helped travelers determine what to expect when traveling or passing through countries regarding COVID-19 tests, quarantine, vaccinations, visas, and other mandatory documents.
- Took over an existing project by participating in the knowledge transfer and handover. Fixed several bugs and implemented new features and settings to make the app more suitable to the clients' needs.
Technologies: Python, Django, FastAPI, GraphQL, MySQL, RabbitMQ, Redis, Celery, React, Apollo, Lerna, Linux, IntelliJ IDEA, TypeScript, Databases, Web Development, Computer Architecture, Node.js, Express.js, MongoDB, JSON Web Tokens (JWT), Docker, APIs, API Documentation, API Integration, SQL, Back-end, Agile, Agile Project Management, REST APIs, Technical Leadership
Back-end Lead
2020 - 2020
Mondee
- Developed the tour packages to permit integration into the TripPro app with the search, booking, ticketing, and payment features for tours and hotels.
- Created a car rental module integrated with the TripPro app, including the search, booking, ticketing, and payment features with a wide variety of options.
- Built a cruise module in the TripPro app with different search, booking, ticketing, and payment features.
Technologies: JavaScript, Node.js, Express.js, MongoDB, Mongoose, Linux, IntelliJ IDEA, TypeScript, Databases, Web Development, Computer Architecture, JSON Web Tokens (JWT), REST, APIs, API Documentation, API Integration, SQL, Back-end, Agile, Agile Project Management, Architecture, REST APIs, Technical Leadership
Back-end Lead
2019 - 2020
Cosmopolitan Travel Service
- Developed a Python portable package importable to several projects, interfacing with GDS providers and consuming their APIs.
- Created a portal as an accounting, searching, booking, and ticketing engine for flights.
- Developed a CRM module to handle customers and their parameters when using the platform.
- Built an insurance module to strengthen our existing app.
Technologies: Python, FastAPI, Django, JavaScript, Node.js, Express.js, Vue 2, Swagger, MongoDB, PostgreSQL, SQLAlchemy, Mongoose, TypeScript, JSON Web Tokens (JWT), Unicorn, PI Development, Heroku, GitHub Actions, Eureka, Linux, IntelliJ IDEA, Databases, Web Development, Computer Architecture, Redis, Celery, Docker, REST, APIs, API Documentation, API Integration, SQL, Back-end, Agile, Agile Project Management, Architecture, REST APIs, SOAP, Technical Leadership
Senior Engineering Consultant
2018 - 2019
MNS Consulting
- Led the engineering team to build a single portal app for the Government of Congo to comply with the doing business report, simplifying the company creation process.
- Studied and proposed a fingerprint authentication app.
- Mentored other junior developers and handled the parts of our infrastructure.
Technologies: Java, Spring Boot, OpenLDAP, PostgreSQL, MongoDB, Thymeleaf, JSON Web Tokens (JWT), Eureka, Camunda BPM, Apache Maven, Nexus, Jenkins, Ansible, Supervisord, Docker, REST, APIs, API Documentation, API Integration, SQL, Back-end, Agile, Agile Project Management, Architecture, REST APIs, Technical Leadership
Chief of Development Unit
2017 - 2018
Sensoft
- Acted as the lead of all finance-related projects in the company; built a transversal knowledge across multiple parts of that field.
- Created an NFC card reader and writer module used for several projects, handling basic inputs and outputs, data encoding, encryption, and security.
- Integrated a mobile payment solution in an existing app, allowing small businesses to handle billing, payments, and reports.
- Built an API gateway agent deployed and configured in the client infrastructure, transforming database access to RESTful API. It mapped the saved procedures to endpoints and exposed them.
- Created a KYC microservice with anti-money laundering and terrorist financing capabilities, which is used by wallet, card, and core banking systems.
- Integrated and enhanced the security module to comply with the law regarding the OTP and password rules for an existing core banking system.
Technologies: Java, Spring, RabbitMQ, MySQL, Near-field Communication (NFC), Android, Grails, Groovy, APIs, API Integration, SQL, Architecture
Project Manager
2017 - 2017
Sensoft
- Developed and supervised the implementation of a bank mobility project—ACEP Fekkisila. Interacted with a core banking system database under Oracle and offered mobility features regarding the client, loan, and transaction via an Android app.
- Implemented an on-site fund collection automation project with FUCCEC Togo and a link with the database under SQL server; agents could recover funds by going directly to the clients.
- Contributed to the technical implementation of a project named "Small Savings Digitization" with Asusu SA in Niger. Helped agents collect savings from small commerce tenders.
Technologies: Agile Project Management, SQL
Lead Developer
2016 - 2017
Sensoft
- Developed a transactions module for a mobile app, having several transaction types such as sending, receiving, refund, cash in, and cash out.
- Created a back-office web app to monitor transactions and apply constraints.
- Integrated the transaction reports and dashboard for each level, including the cashier, supervisor, network admins, and platform admins.
Technologies: Java, JavaScript, Grails, Groovy, Android, SQL, Back-end
Senior Full-stack Developer
2015 - 2016
Sensoft
- Acted as the principal developer working directly with the lead developer. Refactored an existing app and developed new features.
- Built an accounting core module for a money transfer app. This module mimicked the accounting plan and tracked and handled how the money is moved between different transactions' accounts.
- Developed a settings module for a money transfer app for all entities involved in money transfer, such as platforms, networks, and distributors.
Technologies: Java, Grails, Spring MVC, MySQL, SQL
Experience
Card Management System for Refugees
The goal of the app was to help refugees—UNHCR—get their allocation paid quickly.
I built an Android app, a back end and back-office web app for the card management system that completed an existing wallet app. I used the NFC technology and fingerprint to authenticate the users and Excel import to set up amounts in the back office for beneficiaries. We enabled the Android app to have all balances offline and perform verification in not connected environments with a sync mechanism.
I built an Android app, a back end and back-office web app for the card management system that completed an existing wallet app. I used the NFC technology and fingerprint to authenticate the users and Excel import to set up amounts in the back office for beneficiaries. We enabled the Android app to have all balances offline and perform verification in not connected environments with a sync mechanism.
Flight B2B Booking Engine
https://hero.ctsfares.com/A microservices app refactored from an existing monolith offering the CRM, booking, ticketing, and insurance features to B2B travel agencies.
My tasks involved proposing the actual architecture, leading the team, building the entire authentication microservice, and other project parts.
My tasks involved proposing the actual architecture, leading the team, building the entire authentication microservice, and other project parts.
Small Savings Digitalization
In rural and some urban regions of sub-Saharan countries, small savings are a part of the economy.
I led the project and provided an end-to-end digitization solution, offering the agents a mobile app and connecting directly with the core banking system.
I led the project and provided an end-to-end digitization solution, offering the agents a mobile app and connecting directly with the core banking system.
Skills
Languages
Python, JavaScript, TypeScript, Java, Groovy, SQL, GraphQL, Unicorn
Paradigms
REST, Agile Project Management, Agile, Concurrent Programming
Platforms
Docker, Linux, MacOS, Heroku, Android, Nexus, Oracle
Storage
Databases, MySQL, MongoDB, PostgreSQL, Redis
Other
Software Engineering, Web Development, Data Structures, APIs, API Integration, Computer Architecture, FastAPI, API Documentation, Back-end, Architecture, Technical Leadership, Distributed Systems, Algebra, Programming, Information Systems, Statistics, Mathematical Analysis, Apollo, PI Development, GitHub Actions, Near-field Communication (NFC), Starlette, SOAP
Frameworks
Express.js, Grails, Django, Swagger, JSON Web Tokens (JWT), Alembic, Spring Boot, Thymeleaf, Spring, Spring MVC
Libraries/APIs
Node.js, SQLAlchemy, REST APIs, React, Vue 2, OpenLDAP
Tools
IntelliJ IDEA, RabbitMQ, Celery, Lerna, Mongoose, Eureka, Camunda BPM, Apache Maven, Jenkins, Ansible, Supervisord
Education
2014 - 2015
Postgraduate Degree in Computer Science
Gaston Berger University - Saint Louis, Senegal
2013 - 2014
Master's Degree in Computer Science
Gaston Berger University - Saint Louis, Senegal
2012 - 2012
Bachelor's Degree in Computer Science
Gaston Berger University - Saint Louis, Senegal
2009 - 2011
Associate Degree in Mathematics and Computer Science
Gaston Berger University - Saint Louis, Senegal
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