Software Engineer, Infrastructure

Harmonic, Inc.; Greater London; On-site; GBP 70,000 - 100,000; Full time

Job summary

Harmonic, Inc. is seeking a Software Engineer to bridge AI research and product development. You will work with research scientists to transform discoveries into robust software for real-world use, focusing on scalable, reliable systems.

The role requires collaboration across product, design, and engineering teams, with a passion for AI and hands-on development in Python/C++. Prior experience with distributed systems and modern ML frameworks is a plus.

Qualifications

• BS in Computer Science, Engineering, or a related field.
• 2+ years of relevant industry experience.
• Software development skills in Python or C++.
• Experience scaling large-scale distributed systems.
• Experience with code reviews, source control, builds, and testing.
• Familiarity with AI concepts.
• Strong understanding of algorithms and data structures.
• Ability to work in a fast-paced, collaborative environment.

Responsibilities

• Collaborate with AI research scientists to understand and implement state-of-the-art AI algorithms.
• Develop and maintain software that incorporates AI technologies into practical applications and products.
• Ensure the scalability, efficiency, and reliability of software systems.
• Participate in the entire software development lifecycle, including requirement analysis, design, coding, testing, reviewing, deployment, and support.
• Write clean, efficient, and well-documented code.
• Stay updated with the latest trends in software engineering and AI technologies.
• Support the development of a user-facing AI product.
• Work cross-functionally with product managers, designers, and other engineering teams to deliver high-quality products.

Skills

2+ years experience

Fast-paced environment

Algorithms & data structures

AI concepts familiarity

Distributed systems

Education

BS in Computer Science/Engineering

MS/PhD preferred

Tools

Python

C++

Docker

Kubernetes

TensorFlow

PyTorch

AWS

Azure

GCP

Job description

About The Company At Harmonic, we are building a mathematical reasoning engine that operates with absolute precision. While most AI makes maximum-likelihood guesses, Harmonic's Aristotle uses Lean4 and reinforcement learning to verify its reasoning and results. Following our Gold Medal-level performance on the 2025 International Math Olympiad (IMO) and the successful resolution of long-standing open problems, we are proving that AI can master the most rigorous domains of human thought. Backed by some of the world's most prominent investors, we are intentionally scaling an elite technical team.

About The Role We are looking for a talented Software Engineer to bridge the gap between our AI research and product development teams. This role involves working closely with research scientists to understand their discoveries and advancements in AI, and then applying this knowledge to develop robust, scalable software for real-world applications. The ideal candidate should be passionate about AI technology and experienced in software development.

Key Responsibilities

• Collaborate with AI research scientists to understand and implement state-of-the-art AI algorithms.
• Develop and maintain software that incorporates AI technologies into practical applications and products.
• Ensure the scalability, efficiency, and reliability of software systems.
• Participate in the entire software development lifecycle, including requirement analysis, design, coding, testing, reviewing, deployment, and support.
• Write clean, efficient, and well-documented code.
• Stay updated with the latest trends in software engineering and AI technologies.
• Support the development of a user-facing AI product.
• Work cross-functionally with product managers, designers, and other engineering teams to deliver high-quality products.

Minimum Qualifications

• BS in Computer Science, Engineering, or a related field.
• 2+ years of relevant industry experience.
• Software development skills with proficiency in one or more programming languages (e.g., Python, C++).
• Experience scaling and maintaining large-scale distributed systems.
• Experience in software engineering practices including coding standards, code reviews, source control management, build processes, and testing.
• Familiarity with AI concepts and a keen interest in working with AI technologies.
• Understanding of algorithms, data structures, and system design.
• Ability to work in a fast-paced, collaborative environment.

Preferred Qualifications

• MS or PhD degree in Computer Science, Engineering, or a related field.
• Prior experience in collaborating with research teams or in a research-driven environment.
• Experience in developing products from concept to launch.
• Knowledge of cloud platforms and services (e.g., AWS, Azure, GCP).
• Experience with containerization and orchestration technologies (e.g., Docker, Kubernetes).
• Experience with machine learning frameworks (e.g., TensorFlow, PyTorch).

Equal Opportunity Statement

Harmonic is committed to diversity and inclusivity in the workplace. We are an equal opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or any other legally protected status.