Software Development Engineer (Mid-Level)

September 11, 2026

Remote

Middle

Remote

Important before applying

This job has conditions that may affect your decision to apply

Includes on-call duty

Description

Roundz AI is looking for a Software Development Engineer (SDE II) to design and build scalable, reliable distributed systems. The mid‑level role includes end‑to‑end feature ownership, architectural contributions, and mentoring junior engineers.

Responsibilities

Design, develop, test, and deploy backend services with strong ownership
Contribute to the architecture of distributed systems, including service communication, scaling, and failure handling
Write clean, maintainable, well‑tested code and conduct code reviews
Troubleshoot and resolve production issues, improve latency, performance, and cost
Collaborate with product managers, designers, and other engineers
Create technical documentation and operational runbooks
Participate in on‑call rotations to support team‑owned services

Requirements

3 to 6 years of professional software development experience
Strong proficiency in at least one object‑oriented language such as Java, C++, C# or Python
Solid understanding of data structures, algorithms, and object‑oriented design
Hands‑on experience designing or building distributed systems, including queues, caching, databases, and concurrency
Proficiency with Git version control
Strong problem‑solving skills and attention to detail
Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience

Conditions

Remote work arrangement
Flexible work arrangements

JavaAWSGit

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Software Development Engineer (Mid-Level)

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