Senior Software Engineer Together Cloud Infrastructure

Together AI; Amsterdam; On-site; EUR 70,000 - 90,000; Full time

Job summary

Together AI, based in Amsterdam, is seeking a Senior Backend Engineer to develop and maintain its AI Acceleration Cloud platform. You will work on distributed systems and APIs, ensuring their robustness and scalability while collaborating with product teams.

The ideal candidate should have over 5 years of experience in backend development, particularly with microservices and fault-tolerance strategies. This hybrid role requires strong programming skills, with a preference for Golang.

Qualifications

• 5+ years of experience in large-scale distributed systems.
• Strong skills in scalability, stability, and efficiency of system resources.
• Experience with high-performance microservice architectures across cloud platforms.

Responsibilities

• Develop foundational backend services for the commerce platform.
• Analyze and improve existing systems and infrastructures.
• Write maintainable software and participate in code reviews.

Skills

Building large-scale systems

Fault-tolerant system design

API microservice architecture

Excellent communication skills

Programming in Golang

Kubernetes and containers

Education

Bachelor's or Master's degree in Computer Science or related field

Tools

PostgreSQL

CI/CD pipelines

Job description

About the Role

Together AI is building the AI Acceleration Cloud, an end-to-end platform for the full generative AI lifecycle, combining the fastest LLM inference engine with state-of-the-art AI cloud infrastructure.

As a Senior Backend Engineer, you will play a key role in building the next generation AI cloud platform – a highly available, global, blazing-fast cloud infrastructure that virtualizes cutting‑edge ML hardware (GB200s/GB300s, BlueField DPUs) and enables state‑of‑the‑art ML practitioners with self‑serve AI cloud services, such as on‑demand + managed Kubernetes and Slurm clusters. This platform serves both our internal SaaS products (inference, fine‑tuning) and our external cloud customers, spanning dozens of data centers across the world.

Some of what you’ll work on:

• Work on a distributed GPU scheduling system for the on‑demand clusters product, Instant Clusters.
• Build out a global management plane for managing our data center compute, networking, and storage.
• Design and build new customer‑facing cloud platform services, delivering killer enterprise AI cloud features.

Hybrid working 2 days a week at our offices in Amsterdam

Responsibilities

• Identify, design, and develop foundational backend services that power Together’s commerce platform
• Analyze and improve the robustness and scalability of existing distributed systems, APIs, databases, and infrastructure
• Partner with product teams to understand functional requirements and deliver solutions that meet business needs
• Write clear, well‑tested, and maintainable software and IaC for both new and existing systems
• Conduct design and code reviews, create developer documentation, and develop testing strategies for robustness and fault toleranceli>
• Participate in an on‑call rotation to address critical incidents when necessary

Requirements

• 5+ years of demonstrated experience in building large‑scale, fault‑tolerant, distributed systems and API microservices
• Experience designing, analyzing and improving efficiency, scalability, and stability of various system resources
• Excellent communication skills – able to write clear design docs and work effectively with both technical and non‑technical team members
• Demonstrated experience with building and operating high‑performance and/or globally distributed microservice architectures across one or more cloud providers (AWS, Azure, GCP)
• Strong systems knowledge across compute, networking, and storage, including concurrency, memory management, performant I/O, and scale
• Experience developing against and managing a relational database, such as PostgreSQL
• Expert‑level programmer in one or more programming language (Golang preferred)
• Proficiency in version control practices and integrating IaC with CI/CD pipelines.
• Experience with Kubernetes and containers preferred
• Experience building and operating data infrastructure (Kinesis, Airflow, Kafka, etc) a plus
• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience

About Together AI

Together AI is a research‑driven artificial intelligence company. We believe open and transparent AI systems will drive innovation and create the best outcomes for society, and together we are on a mission to significantly lower the cost of modern AI systems by co‑designing software, hardware, algorithms, and models. We have contributed to leading open‑source research, models, and datasets to advance the frontier of AI, and our team has been behind technological advancement such as FlashAttention, Hyena, FlexGen, and RedPajama. We invite you to join a passionate group of researchers in our journey in building the next generation AI infrastructure.

Equal Opportunity

Together AI is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.