Njiva Olaf R.

◉ I build integrated apps and back-offices with a multitude of third-party APIs (Payments, DMS, notifications) from scratch and scale existing ones.

⭐️ 5/5 average on my missions

◉ My references ⤵︎

Emeria Technology, Planity, France Télévision, The Fork, Bolk

✅ 11 applications designed and deployed on stores (E.g.MoKouran+50k downloads)

✅ +25% performance on machines following asynchronous processing management (thus faster meal delivery)

✅ Improved security following the migration of 7 million customer accounts to Okta authentication

✅ Improved Dev EXP thanks to the implementation of Future Boxed

✅ Implemented the Stripe Payment link module allowing clients to pay a deposit capable of handling a load of 8 million users

✅ Contracts for the implementation of machines (foodtech) unlocked with TF1 and Le Méridien

✅ **Spaycial**: Westfield customers can automatically receive their loyalty points on the API via synchronization from BNP/Swedbank/Fintecture

✅ **FranceTV**: Developed a common login interface for apps (Okoo, Slash, France TV, Lumni) via the Gigya API

✅ **TheFork**: Improved user experience in managing reservations/availability

🌎 I have covered several sectors including: **Media / Fintech / Foodtech / Beauty**. on various technical challenges (API integrations, payment, real-time, performance) through the design of microservices/monolith architectures.

- **Back-end**: Node Js/Ts, Express Js, Koa Js, AWS Lambda, Firebase Functions

- **Front-end**: React / Vue Js

- **Database**: PostgreSQL, MySQL, MongoDB, Firebase, ElasticSearch

- **Caching**: REDIS

- **Message Broker**: RabbitMQ

- **Tools**: Kibana, NewRelic, Graphana, Snowflake, Mocha/Jest, Stryker Js, Cucumber

- **CI/CD**: Gitlab/Github, Docker

🕘Response in less than an hour.