Responsibilities

• Design, develop, and maintain scalable backend systems, APIs, and distributed services using modern technologies
• Write clean, efficient, and well-documented code for backend infrastructure, services, and data processing pipelines
• Collaborate with software engineers, scientists, designers, and product managers to implement, integrate, test, deploy, and maintain Horizon’s products
• Maintain Horizon’s professional software development standards and engineering best practices
• Work effectively across multidisciplinary teams to design and implement robust backend architectures and platform services
• Innovate and solve complex technical challenges in support of Horizon’s product development, implementing reliable and scalable solutions in code
• Proactively contribute to and execute the software and platform roadmap
• Provide timely, accurate, and well-researched technical guidance to the Director of Engineering
• Identify architectural or technical gaps, recommend improvements, and implement solutions to enhance scalability, reliability, and performance
• Mentor junior engineers and support their technical growth and professional development
• Maintain clear technical documentation and communicate results internally and externally where required
• Contribute to technical reports, research papers, and engineering documentation as needed by the company
• Collaborate with employees and external partners to develop and protect novel intellectual property relating to quantum hardware and software innovations
• Stay up to date with advancements in backend engineering, distributed systems, cloud infrastructure, and software development practices

Essential Requirements

• Bachelor’s degree in software engineering, electronics engineering or related technology area
• At least 5 years relevant software engineering experience in a high performing team
• Strong understanding of modern backend architectures, distributed systems, APIs, and service-oriented design
• Strong, demonstrable knowledge or skills in the following:
  • Back-end: Python, Go, or similar
  • Database systems: PostgreSQL, MongoDB
  • API development and integration: RESTful APIs and backend services
  • Messaging, concurrency, and scalable system design principles
• Experience designing, building, and maintaining scalable, reliable, and high-performance backend systems
• Knowledge of version control systems (Git, SVN), agile development methodologies, and modern software engineering practices
• Experience deploying and operating backend services in cloud environments
• Strong understanding of testing, debugging, observability, and performance optimisation techniques
• Excellent communication skills and the ability to collaborate effectively within multidisciplinary teams
• Strong problem-solving skills with a focus on writing maintainable, production-quality code
• Proven track record of delivering high-quality software, features, and systems on schedule
• Ability to quickly learn and adapt to new technologies and technical domains
• Passion for engineering excellence, continuous learning, and innovation
• Comfortable working in a fast-paced and technically challenging environment
• Ability to quickly learn and ramp up on new technologies
• Passion for learning and driven to succeed
• Ready for a challenge

Desirable Requirements

• Masters Degree in Software Engineering or a related field