Join SpaceXSI as a Software Engineer to build high-performance client infrastructure for millions of developers.
Posted by employer 1 day ago
First seen on Joblaze 1 day ago
Last verified on the company career page 1 day ago
Skills & Technologies
What you'll build
- Build core client infrastructure
- Improve reliability and performance
- Design instrumentation and telemetry systems
- Partner with product teams
- Build internal tooling
Must have
- Experience building or contributing to high-performance desktop applications
- Bachelor's degree in computer science, engineering, math, or scientific discipline
- 2+ years of professional experience building software
Nice to have
- Deep experience in client infrastructure
- Care deeply about performance, reliability, and developer experience
- Excited to push the limits of what's possible in AI-driven developer tools
Role intensity
70% hands-on coding
AI in the day-to-day
We're creating a powerful flywheel where more compute trains better models, better models power more useful products.
Requirements
- Experience
- 2+ years
- Education
- Bachelor's degree
Not disclosed in this posting: visa sponsorship.
Benefits
Joblaze summary
In the role of Software Engineer on the Client Infrastructure team at SpaceXSI, the individual will focus on designing and building systems that enhance the performance and stability of the Cursor desktop experience for developers. Key skills include experience with high-performance desktop applications, particularly in Electron or native environments, along with a strong emphasis on performance, reliability, and elegant systems design. This position is well-suited for engineers with a background in client infrastructure and a collaborative mindset, thriving in a fast-paced, product-oriented environment.
Joblaze insights
- Listed yesterday — first seen on Joblaze November 10, 2026. Last confirmed on Cursor's careers page November 10, 2026.
- This exact title is also open at 1 other location at Cursor: San Francisco, CA.
- Salary band is in line with the typical range for comparable tech roles (median ~$128,000).
- Starts above 81% of 1407 comparable mid other roles in United States we track (median $105,600 across 182 companies).
Quick facts
- Is the Software Engineer, Client Infrastructure role remote?
- No — this is an on-site role in San Francisco, CA, United States.
- What's the salary range?
- Cursor lists $140,000–$225,000 for this role.
- How much experience is required?
- At least 2 years of relevant experience for this Software Engineer, Client Infrastructure role.
- Where is the role based?
- Cursor is hiring for this position in San Francisco, CA, United States.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: Electron, desktop applications.
- What seniority level is this role?
- Cursor targets mid-level candidates for this position.
- Is this full-time or contract?
- Full-time for this Software Engineer, Client Infrastructure role at Cursor.
From the original posting
SOFTWARE ENGINEER, CLIENT INFRASTRUCTURE
As an Engineer on the Client Infrastructure team at SpaceXSI, you'll design and build the systems that make our desktop experience performant and stable for millions of developers. You'll work across the core architecture of the Cursor client, from build and distribution systems to performance instrumentation and shared abstractions that other teams rely on. The work is deeply technical and central to the company's success. Developers expect near-perfect performance and reliability from their trusted tools; your work will make that possible.
RESPONSIBILITIES:
Build core client infrastructure: shared abstractions, build systems, and observability foundations
Improve reliability and performance: eliminating memory leaks, crashes, and frame-time inconsistencies
Design instrumentation and telemetry systems for profiling, structured logging, and performance measurement
Partner with product teams to unlock faster release velocity, shipping updates to users daily
Evaluate Electron vs. native approaches for critical code paths, guiding architectural tradeoffs
Build internal tooling that enables other engineers to ship safely and quickly on the client platform
BASIC QUALIFICATIONS:
Experience building or contributing to high-performance desktop applications (Electron-based or native)
Bachelor's degree in computer science, engineering, math, or scientific discipline; OR 2+ years of professional experience building software in lieu of a degree
PREFERRED SKILLS AND EXPERIENCE:
Deep experience in client infrastructure, build systems, performance, distribution, or observability
Experience building or contributing to high-performance desktop applications, whether Electron-based or native
Care deeply about performance, reliability, and developer experience, and have an eye for elegant systems design
Thrive in environments that are fast-moving, collaborative, and product-focused
Excited to push the limits of what's possible in AI-driven developer tools
ADDITIONAL REQUIREMENTS:
If there appears to be a fit, we'll reach out to schedule 2-3 short technicals. After, we'll schedule an onsite in our office, where you'll work on a small project, discuss ideas, and meet the team
COMPENSATION AND BENEFITS:
The annual compensation range for this role is listed below.
Annual Salary:
$140,000 - $225,000 USD
Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.
Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.
Standard company text repeated across Cursor's postings is omitted here.