Lead Systems Engineer – Object Storage & S3 (Hybrid)

Quantum US; Centennial (CO); Hybrid; USD 160,000 - 200,000; Full time

Benefits offered by this job

Health plans

401(k) plan

Stock Purchase Program

Employee wellness programs

Job summary

Quantum US in Centennial, CO is seeking a Lead Systems Software Engineer for the Object Storage team. You will act as technical lead, driving architecture near the data path, durability, S3, and data movement while remaining hands-on.

You will design and extend the ActiveScale data path, implement API features, improve latency and throughput, and own complex durability work. This hybrid role requires collaboration with Belgium teams and strong leadership.

Qualifications

• 10+ years of software development experience with systems-level expertise.
• Strong Linux experience, debugging, profiling, and performance analysis.
• Experience with object storage or S3-compatible APIs and high-performance storage design.

Responsibilities

• Act as technical lead for Centennial object storage team, balancing hands-on work with leadership.
• Drive architectural decisions in data path, durability, S3, and data movement.
• Design and build critical components, lead code reviews, ensure automated testing and CI coverage.
• Mentor engineers and foster technical ownership across the team.
• Partner with Engineering Manager and Product Owner on scope and delivery.

Skills

Go

Python

C/C++

Rust

Distributed systems

Linux

Concurrency

S3 APIs

Technical leadership

Cloud storage

Education

Bachelor's degree in Computer Science or related field

Tools

OCaml

Job description

Quantum US in Centennial, CO is seeking a Lead Systems Software Engineer for the Object Storage team. You will act as technical lead, driving architecture near the data path, durability, S3, and data movement while remaining hands-on.

You will design and extend the ActiveScale data path, implement API features, improve latency and throughput, and own complex durability work. This hybrid role requires collaboration with Belgium teams and strong leadership.