.Net developer

Who we are

Xenoss is a consulting and software development company focused on the marketing and advertising space. We design and build custom software products for AdTech and MarTech niches.

In particular, we develop the solutions for user behavior prediction, audience segmentation, marketing automation, market research and analytics, fraud detection, media planning, programmatic media buying/selling, conversion tracking, and more.

Our clients are leading AdTech companies, global marketing, and advertising agencies, ad networks, and big media companies. We work with Blizzard, Telefonica, Dentsu, Voodoo Games, Toshiba, Nestle, and other Fortune 500 companies.

Who we are looking for

The product is an innovative technology solution that connects with outdoor advertising platforms to buy digital out-of-home advertising space automatically. We are building a cost-efficient AWS cloud platform and using the most modern solutions to handle big data and high loads. The project will is built from scratch, based on existing solution combined with best ad-tech practices.

We are looking for a talented and experienced .Net developer to join our team part-time. You will be responsible for developing, integrating, and improving the Backend for Frontend (BFF) layer of our Demand-Side Platform (DSP). The BFF layer acts as an intermediary between our React frontend and Java backend, optimizing API interactions, improving security, and ensuring a seamless user experience.

What you will do

• Develop and maintain our Android SDK to ensure seamless integration with various mediation platforms.
• Implement new features and optimize existing ones for performance and usability.
• Collaborate with cross-functional teams to design and deliver high-quality software solutions.
• Debug and resolve issues related to SDK performance and integration.
• Stay up-to-date with the latest trends and best practices in Android development and ad tech

Which skills should you bring

• Develop and maintain the BFF layer using .NET (C#), ensuring efficient API communication between the React frontend and Java backend.
• Optimize API performance by handling data aggregation, caching, and response shaping.
• Implement authentication and authorization mechanisms, ensuring secure data access between the front and back end.
• Collaborate with frontend (React) and backend (Java) teams to define API contracts and ensure smooth system integration.
• Monitor, debug, and enhance the BFF layer for scalability, resilience, and low-latency responses.

Tech Stack

• .NET 8 C#
• Postgres DB
• AWS SDKs for Cognito auth handlers and S3
• CDK infra deployment
• Docker local environment + AWS Localstack www.localstack.cloud
• CircleCI CI/CD

What will you get

• Teams of people who love programming
• Complex technical challenges with big data/high load
• Freedom to make your own engineering decisions and broad space for creativity
• Modern technology stack to work with
• Work remotely or from the office options on a flexible schedule