Senior C++ Database Systems Engineer (Core Engine)

Company: Xaans

Location: Remote (Must be available to work Central Time hours)

Position Type: Full-Time

Salary Range: $2k-$3k per month

About the Role

XAANs is building and evolving a high-performance, enterprise-grade database platform used for large-scale, mission-critical systems. We’re looking for a senior-level engineer who understands database internals deeply and can own complex, low-level systems work end to end.

This is not an application-layer role. This is core engineering. If you haven’t worked close to the metal or inside a database kernel, this job is not for you.

What You’ll Do

Design, build, and improve core database features with a strong focus on security, scalability, reliability, and performance

Own architecture and implementation of database kernel components

Write high-performance C++ code for distributed, multi-threaded systems

Build systems that run correctly and efficiently across clusters

Identify and fix complex server-side issues, including hard-to-reproduce production bugs

Create proof-of-concept solutions to validate new ideas and architectures

Work closely with product, QA, and documentation teams to deliver features that are production-ready

Lead technical discussions and make architecture-level decisions

Mentor engineers and enforce strong engineering standards

What We’re Looking For

5+ years working on database internals or core data-processing systems

5+ years building distributed and multi-threaded systems

Strong, modern C++ skills (performance matters here)

Deep understanding of concurrency, memory management, and system-level debugging

Comfortable debugging low-level issues using tools like GDB

Solid experience with Linux/Unix systems (Windows is a plus, not a requirement)

Familiarity with cloud environments (AWS, Azure) and containerized deployments

Experience with version control systems like Git or SVN

Strong grasp of the full software development lifecycle

Bachelor’s or Master’s in Computer Science, or equivalent real-world experience

Nice to Have (Not Mandatory)

Experience with NoSQL or hybrid database systems

Knowledge of query languages like XQuery or JavaScript

Background in fault-tolerant system design and performance tuning

Understanding of web and network protocols

Experience working with JSON, XML, or similar document formats

Bottom Line

This role is for someone who:

Thinks in systems, not features

Cares about correctness, performance, and long-term maintainability

Can lead technically without needing hand-holding

Is comfortable taking responsibility for critical infrastructure

Job Type: Full-time

Work Location: Remote