Software Engineer, Connect

Vercel

. Ship provider integrations end to end, including auth flows, token exchange, app registration, and configuration UI.

Posted 11/3/2026full-timeSan Francisco • California • United StatesMid-LevelSenior💰 $196,000 - $294,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in building and operating production backend systems, with a strong focus on OAuth 2.0/2.1, security protocols, and API integrations. Capable of enhancing developer experience and platform performance through effective communication and collaboration.

Highest-signal resume keywords

OAuth 2.0/2.1 ExpertiseTypeScript DevelopmentSecurity Protocol ImplementationAPI Integration ExperiencePlatform Ownership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

OAuth 2.0OIDCJWTTypeScriptBackend DevelopmentFrontend DevelopmentIntegration Code SecurityEvent ForwardingToken ExchangeConfiguration Management

Soft Skills

Clear CommunicationComfort with AmbiguityIncremental Shipping

Tools & Technologies

Snowflake Partner ConnectSlack Manager AppsMicrosoft EntraSDKsWebhooks

Industry Keywords

Integration MarketplacesPartner EngineeringMulti-Tenant IntegrationsAuthorization ServerConsent Patterns

Tech Stack

Tools & technologies

DNSJavaScriptNext.jsOpen SourceSnowflakeTypeScript

About the role

Key responsibilities & impact

Ship provider integrations end to end, including auth flows, token exchange, app registration, and configuration UI.
Support generic API-key and OAuth presets and bespoke integrations such as Snowflake Partner Connect, Slack manager apps, and Microsoft Entra.
Own and improve Connect infrastructure, including uptime, performance, secure storage of credentials and keys, and developer experience.
Propose and implement authentication and authorization protocols for the AI era with industry leaders inside and outside Vercel.
Build and harden event forwarding with inbound signature verification and project-scoped outbound identity.
Extend SDKs, consent-redirect flow, and framework adapters.
Reduce the cost of future integrations by making new providers primarily configuration rather than code.
Work directly with teams building on Connect and turn their feedback into platform improvements.
Own APIs, token infrastructure, authorization, SDKs, and related platform surfaces.

Requirements

What you’ll need

6+ years building and operating production backend or full-stack systems, with a track record of owning a service or platform surface rather than a feature.
Deep, practical understanding of OAuth 2.0/2.1, OIDC, and JWTs, including authorization codes, PKCE, refresh semantics, audience and scope restriction, token exchange, and security implications.
Security expertise for integration code, including SSRF and DNS rebinding, confused-deputy and mix-up attacks, redirect-URI validation, webhook signature verification, and tenant isolation.
Strong TypeScript and comfort developing backend and frontend components.
Experience integrating with many third-party APIs, including undocumented behavior, non-compliant OAuth, and inconsistent errors.
Ability to work comfortably with ambiguity, ship incrementally against a large surface, and communicate clearly with teams building on the platform.
Experience leveraging agents and AI in the development workflow.
Bonus: experience building or operating an OAuth authorization server, identity provider, or multi-tenant integrations platform.
Bonus: experience with MCP, agent tool-calling, or delegated-access and consent patterns.
Bonus: prior work on integration marketplaces, partner engineering, or webhook infrastructure at scale.
Bonus: open source contributions in auth, Next.js, or agent tooling ecosystems.

Benefits

Comp & perks

Competitive compensation package, including equity.
Inclusive Healthcare Package.
Learn and Grow - we provide mentorship and send you to events that help you build your network and skills.
Flexible Time Off.
We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed.
Eligibility for a company bonus or variable pay program depending on the role.