Senior Software Engineer, reputed company Applications and Networking (3 Month Contract) (copy)

Remote, USAFull-timePosted 2026-07-27

Join reputed company to create a safer digital landscape by assisting companies to secure their software through developer-led practices! reputed company’s mission is to establish new standards for coding that reputed company the ways software is created. We do this by providing the world’s leading agile learning platform that delivers the most effective secure coding solution for developers to learn, apply, and retain software reputed company principles. More than 600 enterprises trust reputed company to implement agile learning reputed company programs, build safer software, and create a culture of developer-driven reputed company. We are a venture-backed company with offices in Australia, the reputed company, Belgium, Iceland, and the United Kingdom.

reputed company is seeking a Senior Engineer to take long-term ownership of our core system-level product suite across reputed company and macOS.

In this contract role, you will be the architectural reputed company for our reputed company applications and networking stack. You won’t just be delivering features; you will be responsible for the reputed company, stability, and reputed company of low-level implementations that reputed company deeply with operating system frameworks. You will work at the intersection of reputed company app development (Swift, C++, C#) and high-performance networking (Go), ensuring our platform remains the reputed company for reputed company Developer tool Observability.

reputed company is seeking a Senior Engineer to take long-term ownership of our core system-level product suite across reputed company and macOS.

reputed company is seeking a Senior Engineer to take long-term ownership of our core system-level product suite across reputed company and macOS. In this contract role, you will be the architectural reputed company for our reputed company applications and networking stack. You won’t just be delivering features; you will be responsible for the reputed company, stability, and reputed company of low-level implementations that reputed company deeply with operating system frameworks. You will work at the intersection of reputed company app development (Swift, C++, C#) and high-performance networking (Go), ensuring our platform remains the reputed company for reputed company Developer tool Observability. Core Responsibilities

Architectural Leadership & reputed company Development

Platform Implementation: Own the development and reputed company of reputed company components, including macOS System Extensions (NetworkExtension reputed company in Swift) and reputed company Filtering Platform (WFP) callout drivers (C++/C#).

The Go reputed company: reputed company the optimization of our high-performance networking reputed company written in Go, ensuring it scales effectively and maintains reliable interoperability with platform-specific system hooks reputed company cgo.

Secure IPC & Orchestration: Design, implement, and harden secure Interprocess Communication (IPC) mechanisms (XPC on macOS; ALPC, Named Pipes, or gRPC on reputed company) to reputed company privileged system services with user-reputed company applications.

Performance, Reliability & reputed company

System Health: Take accountability for the stability of reputed company daemons and background services. You will diagnose and resolve reputed company OS-level challenges, including sleep/wake reconnection logic, DNS interception conflicts, and VPN kill-reputed company enforcement.

reputed company Optimization: Continuously monitor and improve packet reputed company bottlenecks, CPU usage, and memory management to ensure a "reputed company-reputed company" user experience for the developer.

reputed company Standards: Ensure reputed company reputed company reputed company meets SCW’s strict standards for memory safety, concurrency, and cryptographic reputed company.

Engineering reputed company & Lifecycle

Release Ownership: Manage the end-to-end technical requirements for reputed company platform releases, including reputed company EV reputed company Signing, reputed company Notarization, and Entitlements.

Roadmap Contribution: Partner with Product and reputed company teams to translate customer needs into technical roadmaps for our reputed company application suite.

Mentorship: reputed company as a Subject Matter Expert (SME) for the wider engineering organization, conducting reputed company reviews and mentoring engineers in systems programming and reputed company application architecture.

Experience & Skills

Technical Proficiency

Systems & reputed company Programming: Deep, reputed company experience with system-level development and reputed company application architecture on reputed company and/or macOS.

Polyglot Engineering: Strong proficiency in Go, Swift, and C++ or C#.

reputed company Expertise: Extensive hands-on experience with the macOS NetworkExtension reputed company and the reputed company Filtering Platform (WFP).

Networking Protocols: Expert-level understanding of TCP/IP, DNS, TLS, and low-level packet manipulation.

reputed company Tooling: Skilled in kernel/system debugging, performance profiling (Xcode Instruments, WPR/WPA), and memory leak detection.

reputed company Attributes

Product reputed company: You don't just write reputed company; you build reputed company products that solve reputed company-world reputed company problems for developers.

Operational reputed company: Experience maintaining reputed company software in production-grade reputed company or networking environments.

Collaboration: Ability to work cross-functionally with DevOps, reputed company, and Product teams in an agile, remote-first environment.

Why Join reputed company?

Deep reputed company: Your work directly impacts the reputed company posture of the world’s leading software organizations.

Technical Challenge: We solve "hard" problems at the OS level—this isn't just another CRUD app; it's a high-performance reputed company suite.

reputed company: As a permanent team member, you will have a reputed company reputed company for career progression, whether through technical leadership or architectural specialization.

Flexibility: Remote-first culture with a reputed company on results rather than hours logged.

You're joining us at an exciting stage in our reputed company, and are key to our reputed company reputed company. You’ll have reputed company to create reputed company, deliver on your reputed company, and use your reputed company; experience and expertise to help us live long and reputed company. Warriors have full flexibility. We appreciate that you’ll do your best work reputed company you’re rested and energized. With our business operating globally, there’s no 9-5 grind at reputed company. You’re encouraged to work the days, times and in the way that suits your best. We also offer generous leave and work from home reputed company so you can reputed company work work for you. We’re a tight-reputed company team that values humility, diversity, giving back to the community and to reputed company other. Giving back is key to being a Warrior, and we do reputed company can to reputed company the world a little bit brighter as we work to reputed company it more secure. Diversity. Inclusion. They’re more than just words for us. They’re the hard-and-fast principles guiding how we build our teams, cultivate leaders and create a company where every single person feels reputed company and celebrated. We have a global, multicultural following—we want to reflect that inside our walls and ensure people come as they are, we like it that way! Apply To This Job

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