Software Engineer, Java

United States Digital Space LLC; Greater London; On-site; GBP 50,000 - 70,000; Full time

Job summary

United States Digital Space LLC, based in Greater London, seeks a skilled software developer. You will lead features for the online shopping experience and develop robust applications using Java and Kotlin.

Ideal candidates should have a Bachelor's degree, 3+ years of relevant experience, and a deep understanding of server-side technologies. The position provides competitive salary and a people-first work culture.

Qualifications

• 3+ years of hands-on software development experience.
• Proven experience in designing, developing, and maintaining robust, scalable applications.
• Advanced knowledge of server-side technologies.

Responsibilities

• Lead development of features for the online shopping experience.
• Explore, learn, design, and implement software components.
• Communicate impact to technical decisions and document best practices.

Skills

Java

Kotlin

GraphQL

RESTful services

CI/CD pipelines

AWS

Communication (English)

Communication (Chinese)

Education

Bachelor's degree in Computer Science, Software Engineering or a related field

Tools

Jenkins

Spinnaker

GitHub Actions

Job description

Key Responsibilities

• Lead development of features for the online shopping experience on Joybuy.
• Explore, learn, design, and implement modular and scalable software components, based on your understanding and current industry trends.
• Understand the business problem space, and communicate impact to technical decisions while providing high-level estimates and a breakdown of tasks for the proposed solutions.
• Enable decision making to architecture, and technical challenges faced by the team and document and share best practices, maintain and enhance quality of code written.
• Work onsite in London.

Minimum Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 3+ years of hands‑on software development experience.
• Proven experience designing, developing, and maintaining robust, scalable applications.
• Advanced knowledge of server‑side technologies: Java, Kotlin with a solid understanding of API design in GraphQL/RESTful services.
• Familiarity with microservices, and cloud architecture and platforms like AWS.
• Experience with CI/CD pipelines and tools such as Jenkins, Spinnaker, or GitHub Actions.
• Excellent communication skills in English.

Preferred Qualifications

• Experience in eCommerce or retail industry.
• 2+ years of experience designing, analyzing, and troubleshooting large‑scale distributed systems.
• Effective communication skills in Chinese.

Benefits

Joining the company means becoming part of a people‑first culture where your growth truly matters. We offer a competitive salary, a great location, and access to global projects, learning opportunities, and an inclusive environment that values every voice.

EEO Statement

The company is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.