Backend Engineer (Golang)

Backend Engineer (Golang)

About Assertive Yield

Assertive Yield B.V., a scale-up PubTech company in the AdTech ecosystem, caters to some of the largest publishers worldwide. Our distinct granular data analytics platform sets us apart from the rest of the market. While our HQ is in Amsterdam, our team is globally dispersed. We aim to provide publishers with comprehensive and dependable analytical data powered by machine learning and cutting–edge technologies, creating a single source of truth for holistic revenue analysis.

As we continue to grow, we are seeking a Backend Engineer in the Netherlands to join our team. The ideal candidate will be responsible for developing and implementing end-to-end solutions, ensuring the smooth functioning of our applications, and improving their performance. 

Key Responsibilities

System Development 

Design, develop, and maintain high-performance Go microservices using FastHTTP, gRPC, and Protocol Buffers 

Build and optimize distributed client-server architectures that run across customer infrastructure 

Implement real-time ML inference integration with models in C 

Create robust data ingestion pipelines feeding into the Data Warehouse for analytics and ML training 

Performance & Reliability 

Optimize systems for sub-millisecond response times under high load 

Implement graceful degradation, circuit breakers, and fallback mechanisms 

Conduct performance profiling, benchmarking, and optimization (CPU, memory, GC tuning) 

Design for fault tolerance and high availability in production environments 

Monitor production systems using Prometheus, structured logging, and custom metrics 

Architecture & Best Practices 

Contribute to architectural decisions for scalability and maintainability 

Write clean, maintainable, well-tested code following Go best practices 

Implement comprehensive testing (unit, integration, E2E) with snapshot testing 

Participate in code reviews and mentor junior engineers 

Document system design, APIs, and operational runbooks 

Collaboration 

Work closely with ML engineers to integrate models into production systems 

Collaborate with DevOps on containerization (Docker), orchestration (Kubernetes), and CI/CD. Partner with product managers to understand requirements and deliver features 

Participate in on-call rotation for production support 

Required Experience

5+ years of professional backend engineering experience 

3+ years of production Go development with a deep understanding of the language 

Strong experience building distributed systems and microservices architectures 

Proven track record of building high-performance, low-latency systems (< 100ms response times) 

Experience with gRPC, Protocol Buffers, and modern API design 

Production experience with containerization (Docker) and orchestration (Kubernetes) 

Required Technical Skills

Expert-level Go programming (concurrency patterns, memory management, performance optimization) 

Distributed systems concepts: service discovery, consensus, eventual consistency, CAP theorem 

High-performance networking: HTTP/2, connection pooling, load balancing 

Database experience: SQL, indexing, query optimization 

Testing: unit tests, integration tests, benchmarking, profiling 

Version control: Git workflows, code review pra

Nice-to-have Skills

AdTech/RTB ecosystem: SSPs, DSPs, bidding protocols, OpenRTB 

Real-time bidding systems and auction dynamics 

ML model integration: serving, versioning, A/B testing

What we offer

🌍 Fully Remote Role: Work from home in the  Netherlands.

⏳ Flexible Work Hours: Choose a schedule that suits your productivity style.

🧠 Professional Growth: Opportunities for career advancement and continuous learning.

🎯 High Impact: Your work will directly support our clients and shape our product’s future.

🤝 Smart & Supportive Team: Join a diverse and driven group of professionals passionate about pushing AdTech boundaries.

If you're passionate about building powerful backend systems that fuel data-driven decisions, Assertive Yield is the perfect place to advance your career. Apply now and be part of our exciting journey to reshape the future of digital publishing!