Senior Backend Engineer (JAVA / GO)

United States Digital Space LLC; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Backend Engineer to lead design, development, and optimization of scalable backend systems. You will own critical components, write high-quality code, and collaborate across product, frontend, and DevOps teams to deliver robust solutions.

The role targets engineers with 5+ years of experience who thrive on ownership, performance, and technical leadership, working in a dynamic environment in Singapore.

Qualifications

• ,

Responsibilities

• Design, develop, and optimize scalable backend systems.
• Write clean, maintainable code and perform refactoring.
• Identify and resolve performance, stability, and scalability issues.
• Mentor junior engineers and improve development processes.
• Collaborate with product, frontend, and DevOps teams to deliver robust systems.

Skills

Java

Go

System Design

Problem Solving

Team Collaboration

Communication

Ownership

Adaptability

Code Quality

Tools

Spring Boot

WebFlux

Kafka

Redis

SQL/NoSQL databases

Job description

JOB SUMMARY:

We are seeking a Senior Backend Engineer to join our growing engineering team. In this role, you will work independently to deliver production-ready, high-quality code with minimal issues. You will take full responsibility for the design, development, and optimization of backend systems, collaborating with cross-functional teams to ensure systems perform at their best. This is an excellent opportunity for an experienced engineer with at least 5 years of work experience who thrives on ownership, scalability, and technical leadership.

JOB DUTIES:

• Design \& Development: Build scalable, secure, and reliable backend systems that meet business needs.
• Code Quality: Write clean, maintainable code and improve existing codebases through regular refactoring.
• System Optimization: Identify and resolve performance, stability, and scalability issues.
• Process \& Mentorship: Improve development processes and provide guidance to junior engineers.
• Collaboration: Work closely with product, frontend, and DevOps teams to align on solutions and deliver robust systems.

JOB REQUIREMENTS:

• Minimum 5 years of backend engineering experience, delivering production-level systems.
• Tech Stack: Proficient in Java or Go , with experience in Spring Boot , WebFlux , Kafka , Redis , and SQL/NoSQL databases.
• System Design: Capable of designing modular, scalable solutions with considerations for performance, security, and observability.
• Problem Solving: Skilled at identifying edge cases, managing risk, and improving system quality.
• Process Mindset: Able to spot inefficiencies and propose improvements in both tech and workflow.
• Team Collaboration: Strong communication skills and a proactive approach to teamwork and feedback.

Soft Skills:

• Team Mindset: Proactively contribute to team and company goals with a collaborative attitude.
• Ownership: Take responsibility for your work and deliver with high quality and consistency.
• Adaptability: Open to feedback and willing to learn and grow with evolving challenges.
• Communication: Clearly articulate ideas and decisions with both technical and non-technical stakeholders.

What We Offer:

• Technical Leadership Opportunities : Participate in high-impact projects and lead the design of critical systems.
• Continuous Growth : Access to mentorship, learning resources, and a clear career progression path.
• High-Performance Collaboration : Work with a talented team using modern development practices (Agile/CI-CD).
• Flexibility and Trust : An open culture that encourages innovation and autonomous decision-making.