Staff Software Engineer (Platform - Access & Authorization)

United States Digital Space LLC; United States; Hybrid; USD 218,000 - 257,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Software Engineer for the Access & Authorization team to help shape secure authentication and authorization across distributed services. You will design foundational capabilities that balance strong security with a simple user experience across the company’s products and partner integrations.

You’ll own end-to-end design and operation of authentication, OAuth, sessions, tokens, 2FA, and edge authorization, building secure Go and gRPC services

Qualifications

• 8+ years of backend software engineering experience with Go or a comparable systems-oriented language.
• Experience designing secure APIs and handling OAuth 2.0, OpenID Connect, JWTs, PKCE, or related standards.
• Proficiency with gRPC and data stores like Redis or DynamoDB; strong observability and SLO mindset.

Responsibilities

• Own end-to-end design, implementation, and operation of authentication, OAuth, sessions, tokens, 2FA, and edge authorization.
• Build secure, low-latency Go and gRPC services across web, mobile, API, and partner experiences with strong observability and SLOs.
• Lead technical designs for initiatives like signed tokens, passkeys, biometric recovery, and device-aware authentication.
• Partner with product, security, fraud, and infrastructure teams to balance conversion, protection, and regulatory needs.
• Mentor engineers through reviews, pairing, and on-call participation.

Skills

Go

Distributed systems

API design

OAuth 2.0

OpenID Connect

JWTs

gRPC

Protocol Buffers

Redis

DynamoDB

Tools

Protocol Buffers

Job description

Ready to do the most impactful work of your career? At the company, we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. the company is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at the company.

Senior Software Engineer, Access & Authorization

As a Staff Software Engineer on the Access & Authorization team within the Platform group, you'll help shape the systems customers use to securely access the company. This team builds and operates distributed services at the intersection of security, identity, developer infrastructure, and customer experience. You'll design foundational authentication and authorization capabilities that balance strong security with a simple experience, creating leverage across every the company product and partner integration.

What you'll do:

• Own end-to-end design, implementation, and operation of capabilities across authentication, OAuth, sessions, tokens, 2FA, account recovery, and edge authorization.
• Build secure, low-latency Go and gRPC services used across the company's web, mobile, API, and partner experiences, with strong observability, failure testing, and measurable SLOs.
• Lead technical designs for complex initiatives such as signed authorization tokens, passkeys, biometric recovery, device-aware authentication, and mobile OAuth.
• Partner with product, security, fraud, and infrastructure teams to balance customer conversion, account protection, regulatory requirements, and engineering constraints.
• Simplify integration patterns and build self-service tooling that enables product teams to adopt access and authorization capabilities safely at scale.
• Mentor engineers and raise the technical bar through design reviews, pairing, code reviews, and on-call participation.

Required Skills and Experience:

• 8+ years of backend software engineering experience with strong proficiency in Go or a comparable systems-oriented language, including building and operating reliable, high-throughput distributed services in production.
• Demonstrated experience designing secure APIs and reasoning about authentication, authorization, session management, trust boundaries, and token handling (OAuth 2.0, OpenID Connect, JWTs, PKCE, or related standards).
• Proficiency with gRPC, Protocol Buffers, and data stores such as Redis or DynamoDB, with strong operational instincts using metrics, logs, traces, alerts, and SLOs to run critical services.
• Track record of delivering complex, cross-functional projects from technical design through production rollout, with clear written and verbal communication that aligns engineering, security, product, and infrastructure partners.
• Utilizes generative AI responsibly, maintaining human oversight to deliver business-ready outputs and drive measurable improvements in workflow efficiency, cost, and quality.

Pay Transparency Notice: Base salary varies by location (see range below). Total compensation may also include equity and bonus eligibility, and benefits (medical, dental, vision, 401(k)).

Annual base salary range (excluding equity and bonus): $218,025 — $256,500 USD

• Application Limit: Candidates may submit a maximum of 3 applications within a 6-month period.
• Equal Opportunity Employer: the company is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or genetic information. Applicants with criminal histories will be considered consistent with applicable federal, state, and local laws.
• US Applicants: View Employee Rights, Know Your Rights, and E-Verify Notice of Participation.
• Accommodations: If you are an individual with a disability who needs a reasonable accommodation, email us your request and contact info at accommodations[at]the company.com. Need screen reading technology? Click here to download a free compatible screen reader and view the tutorial.
• Data Privacy & Arbitration: By submitting your application, you agree to our Candidate Privacy Notice. US applicants: By submitting your application, you agree to Arbitration of Disputes.