About the role

Design and maintain real-time advertising systems.
Optimize backend services using Java and Go.
Build data-intensive architectures with high-load solutions.
Participate in R&D for GenAI and automation.
Contribute to the frontend layer for internal tools.

Skills the posting asks for

Java
Spring Boot
React
Go
Kafka

Summarised from the employer’s posting, which is reproduced in full below.

The employer’s full posting

Description

The position is open for a global, publicly traded AdTech market leader. The company's platforms handle over 1 trillion requests per day, operating within a highly optimized real-time cloud architecture across dozens of servers and processing terabytes of data daily.

The engineering team focuses on intense performance optimization, low-latency infrastructure, asynchronous data streaming, and cutting-edge GenAI research and development.

Salary: upto $5,000 USD / month.
Format: Full-time. Hybrid (Budva, Montenegro) or 100% Remote globally
Contract Type: B2B Contract

Responsibilities

Design, scale, and maintain real-time advertising bidding systems (DSPs, RTB Exchanges, and SSP platforms).
Optimize backend services using Java (Spring Boot / WebFlux) and Go (Golang) to meet strict low-latency SLA/SLO targets.
Build and manage data-intensive architectures utilizing high-load storage solutions (Aerospike, ClickHouse) and event-driven messaging (Apache Kafka).
Participate in R&D initiatives involving GenAI, integrating Agentic AI frameworks (LangChain, LangGraph, N8N) for workflow automation and predictive analytics.
Take full ownership of features end-to-end, contributing to the frontend layer (React / TypeScript) for internal tools and dashboards when required.