Software Engineer, Developer Experience

Location

New York, NY / Washington, DC

Work Arrangement: Hybrid — 3 days in-office per week (non-negotiable)
Position: Full-time
Company Stage: Series C
Experience: 4+ years of professional software engineering experience
Compensation: $225,000–$275,000 base salary, geo-adjusted for New York and Washington, DC
Equity: Meaningful, competitive equity
Visa: Open to eligible visa transfers, including OPT and H-1B transfers

Company Description

We are building America's privacy-first mobile carrier, delivering secure, resilient cellular services to government agencies, enterprises, and consumers.

Built on our own mobile core and SIM technology, our platform is designed to protect customer privacy by collecting only the minimum information needed to provide service, deleting it quickly, and never selling customer data. Our services include advanced protections such as daily identifier rotation, SIM swap protection, network lock, secondary phone numbers, disappearing call logs, and secure global roaming.

We are the only U.S. mobile carrier with SOC 2 Type 2 certification across all five trust criteria. Our service is trusted by national security professionals, enterprise executives, journalists, and activists.

Following our recent Series C, we are scaling our engineering organization from approximately 70 employees and investing in the internal platforms, tooling, and development infrastructure that will support the next stage of growth.

You'll join at an important inflection point as the first dedicated Developer Experience engineer. This is an opportunity to shape how engineers across the organization build, test, and ship software, working closely with teams building sophisticated cryptographic systems and 5G core network infrastructure.

What You Will Do

• Own Developer Experience: Build and improve the internal platforms, developer tooling, and workflows that help engineers across the organization work more efficiently.

• Improve CI/CD pipelines: Own and optimize continuous integration and deployment pipelines, making it easier for engineers to test, validate, and ship code reliably.

• Improve local development environments: Make local setup, development workflows, and debugging easier and more consistent across the engineering organization.

• Focus on Go development workflows: Improve the tools and processes that support how engineers write, test, and ship Go code.

• Build internal tooling: Identify recurring engineering friction and develop tools that remove unnecessary work and improve developer productivity.

• Work cross-functionally: Partner with platform, product, infrastructure, network, and security teams to identify bottlenecks and prioritize high-impact improvements.

• Shape AI-assisted development: Evaluate and implement AI coding tools, establish appropriate guardrails, and measure their actual impact on engineering productivity.

• Establish engineering standards: Develop documentation, runbooks, development guidelines, and best practices that scale with the growing engineering organization.

• Improve engineering workflows: Identify opportunities to simplify build systems, testing, deployment, and day-to-day development processes.

• Drive Developer Experience strategy: Take ownership of the DevEx roadmap, identify what the organization should improve, and independently drive those improvements.

• Provide technical leadership: Mentor future Developer Experience hires and help establish the direction and standards for the function as it grows.

Ideal Candidate Background

Required Experience

• 4+ years of professional software engineering experience.

• Strong engineering fundamentals and experience building tools, platforms, or infrastructure that improve the productivity of other engineers.

• Experience working with CI/CD pipelines and modern software development workflows.

• Experience improving developer tooling, local development environments, build systems, testing infrastructure, or deployment processes.

• Strong understanding of software engineering productivity and the challenges developers face when building and shipping software.

• Experience working with Go or the ability to contribute meaningfully to Go development workflows.

• Experience collaborating with multiple engineering teams to identify technical bottlenecks and deliver improvements.

• Ability to independently identify problems, prioritize improvements, and execute solutions without relying on a predefined roadmap.

• Strong technical judgment and the ability to make decisions that improve the engineering organization as a whole.

• Experience establishing engineering standards, documentation, and development processes.

• Strong communication skills and the ability to influence engineers across different teams.

• Ability to work from the New York or Washington, DC office at least three days per week.

• Must be eligible to work in the United States. Eligible visa transfers, including OPT and H-1B transfers, are supported.

Technical Skills

Core Engineering

• Developer Experience and developer productivity.

• CI/CD pipeline development and optimization.

• Local development environments.

• Internal developer tooling.

• Build systems and automation.

• Testing and deployment infrastructure.

• Engineering documentation and runbooks.

• Software development workflows.

• Cross-functional technical collaboration.

Relevant Technologies

• Languages: Go, Rust, TypeScript, Python.

• Frontend: React.

• Development tooling: GitHub Actions, Buildkite, Bazel.

• Infrastructure: Docker, Kubernetes, Terraform.

• Security and software supply chain: Sigstore, Cosign.

• AI-assisted development: GitHub Copilot, Claude Code, Cursor.

• Data and communication: Protocol Buffers (Protobuf).

• Engineering practices: CI/CD, automated testing, build optimization, developer workflow automation.

Candidates do not need experience with every technology listed. Prioritize strong developer tooling and infrastructure experience, the ability to improve engineering workflows, and practical experience building systems that make other engineers more productive.

Preferred Background

• Experience as a Developer Experience Engineer, Developer Productivity Engineer, Platform Engineer, or Infrastructure Engineer.

• Experience as the first or founding engineer responsible for Developer Experience at a company.

• Experience building internal developer platforms or tools used across an engineering organization.

• Strong experience improving CI/CD pipelines, build systems, and deployment workflows.

• Experience with Go development environments and tooling.

• Experience with Bazel, Buildkite, GitHub Actions, or similar build and CI systems.

• Experience working with Docker and Kubernetes.

• Experience evaluating and rolling out AI coding tools across engineering teams.

• Experience establishing engineering standards, documentation, and internal processes.

• Experience supporting teams working on security-sensitive, infrastructure-heavy, or distributed systems.

• Experience in a rapidly growing startup where engineering processes needed to scale.

• Experience influencing technical decisions and mentoring engineers without necessarily managing a team.

Working Style and Culture

• High ownership: Takes responsibility for Developer Experience and independently identifies what needs to improve.

• Product-minded: Treats internal engineers as customers and focuses on removing friction from their workflows.

• Proactive: Doesn't wait for a roadmap or detailed instructions to identify and solve problems.

• Technically strong: Can build tools and infrastructure directly rather than only coordinating initiatives.

• Collaborative: Works effectively with platform, product, infrastructure, network, and security teams.

• Pragmatic: Focuses on measurable improvements rather than adopting tools simply because they are popular.

• AI-forward: Understands how AI-assisted development can improve productivity and how to implement it responsibly.

• Strategic: Can establish standards and build a Developer Experience function that scales with the organization.

• Mentorship-oriented: Comfortable raising engineering standards and helping future DevEx hires grow.

• Autonomous: Comfortable being the first dedicated person in a function and shaping its direction.

Compensation and Benefits

• Base salary: $225,000–$275,000, geo-adjusted for New York and Washington, DC.

• Compensation flexibility: Open to going above the listed range for the right senior candidate.

• Equity: Meaningful, competitive equity.

• 401(k): Employer match.

• Healthcare: 100% coverage of medical, dental, and vision premiums for employees and dependents.

• Parental leave: 12 weeks of paid parental leave for all parents, with no waiting period.

• Family benefits: Family-forming stipend.

• Additional benefits: Gender-affirming care stipend.

• Time off: Unlimited PTO.

• Relocation: Relocation support available.

• Visa: Open to eligible visa transfers, including OPT and H-1B transfers.

• Work arrangement: Hybrid, with three days per week in the office.

Why Join?

• Build a Developer Experience function from the ground up: Be the first dedicated DevEx hire and shape how the engineering organization works.

• Have organization-wide impact: Improve the productivity of every engineer across the company.

• Work on complex technology: Support engineers building cryptographic primitives, secure mobile infrastructure, and 5G core network systems.

• Shape AI-assisted engineering: Influence how the organization adopts and measures AI coding tools.

• Own the roadmap: Identify the biggest engineering bottlenecks and independently drive improvements.

• Join at an important growth stage: Help establish the internal platforms and engineering practices needed as the organization scales after Series C.

• Grow into technical leadership: Have the opportunity to develop into a tech lead or manager as the Developer Experience function expands.

• Competitive compensation and benefits: Receive a strong base salary, meaningful equity, comprehensive healthcare coverage, and additional employee benefits.