Senior Backend Engineer

Affle 3i Ltd; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

Himalayas is seeking a Senior Backend Engineer to drive backend APIs and RTB/Ad Exchange services across our AdTech platform. You will own high-volume, production-grade systems using Python, Node.js, and Java, delivering scalable solutions for reporting and data processing.

The role involves building RESTful APIs, optimizing data pipelines, and collaborating with cross-functional teams (UI, DevOps, QA). Strong experience in Kafka, AWS, and Docker is valued for production readiness.

Qualifications

• 5+ years backend/software engineering experience.
• Experience in AdTech/RTB is preferred.
• Strong REST API design and implementation.
• Strong SQL/relational DB experience.
• Experience with real-time event streams (Kafka).
• Cloud experience (AWS).
• Docker/container deployment and monitoring.

Responsibilities

• Design and develop backend APIs for UI and platform functionality using Python and/or Node.js.
• Build APIs supporting campaign management, configuration, reporting, and platform operations.
• Develop and maintain Java-based RTB and Ad Exchange services.
• Work on high-throughput, low-latency real-time advertising request/response processing.
• Develop and maintain Python-based advertising reporting and data-processing services/scripts.
• Work with event and reporting pipelines using technologies such as Kafka, databases, and cloud storage.
• Troubleshoot and optimize production services, database queries, and data pipelines.
• Participate in architecture, code reviews, testing, deployment, and production support.
• Collaborate with UI, SDK, DevOps, QA, and other engineering teams.

Skills

Python

Node.js

REST APIs

SQL

Kafka

Distributed systems

AWS

Performance tuning

RTB/AdTech knowledge

Docker

OpenRTB

Tools

Docker

Kafka

AWS

Job description

Role Overview

We are looking for a Senior Backend Engineer to work across our AdTech platform, including backend APIs, Real-Time Bidding (RTB) systems, and advertising reporting/data-processing services. The engineer will work across Python, Node.js, and Java and should be comfortable owning high-volume, production-grade backend systems.

Key Responsibilities

• Design and develop backend APIs for UI and platform functionality using Python and/or Node.js.
• Build APIs supporting campaign management, configuration, reporting, and platform operations.
• Develop and maintain Java-based RTB and Ad Exchange services.
• Work on high-throughput, low-latency real-time advertising request/response processing.
• Develop and maintain Python-based advertising reporting and data-processing services/scripts.
• Work with event and reporting pipelines using technologies such as Kafka, databases, and cloud storage.
• Troubleshoot and optimize production services, database queries, and data pipelines.
• Participate in architecture, code reviews, testing, deployment, and production support.
• Collaborate with UI, SDK, DevOps, QA, and other engineering teams.

Required Skills

• Strong experience with Python and/or Node.js backend development.
• Working knowledge of Java and Scala (optional) and ability to contribute to an existing Java codebase.
• Strong experience designing and developing REST APIs.
• Strong SQL and relational database experience.
• Experience with Kafka or similar event-streaming technologies.
• Experience with distributed, scalable backend systems.
• Experience with cloud infrastructure, preferably AWS.
• Strong debugging, performance optimization, and production troubleshooting skills.
• +3 years of experience in AdTech / programmatic advertising & understanding of RTB, OpenRTB, DSPs, SSPs, Ad Exchanges, bidders, impressions, clicks, and advertising reporting.
• Experience building high-QPS, low-latency systems.
• Experience with large-scale event processing and reporting pipelines.
• Docker/containerized deployment and monitoring experience.
• Experience 5+ years of backend/software engineering experience preferred.

We are looking for a strong hands-on engineer capable of independently understanding existing systems and taking ownership across API development, RTB/Ad Exchange services, and reporting/data pipelines.

Originally posted on Himalayas