Senior Software Engineer – API Developer Experience

Overview:

One Identity's OneLogin team is seeking Senior Software Engineers who operate with high ownership, strong technical judgment, and a bias for action. These roles are designed for engineers who identify and solve problems proactively - not just execute assigned work.

Senior Engineers at OneLogin are expected to operate as T-shaped engineers: deep in a primary domain while remaining capable across the stack (backend, APIs, cloud, and operations). You will play a key role in maintaining product velocity, improving system reliability, and reducing operational burden.

This is a hands-on role that includes on-call responsibilities and requires a strong commitment to modern engineering practices, including AI-augmented development. We are looking for engineers who take full ownership - design, build, test, deploy, and operate - rather than handing work off between silos.

In this role, you will focus on standardizing API development through tooling and automation, improving consistency, usability, and integration velocity across services. You will leverage AI-powered tools to accelerate API design, validation, and standardization - improving developer workflows and reducing inconsistency at scale.

Responsibilities:

Standardize API development through tooling and automation so the right approach is the default

Define and evolve API standards (OpenAPI), and enforce through tooling, automation, and CI/CD workflows (not manual review processes)

Build and maintain systems that auto-generate, validate, and enforce API specifications (contracts, schemas, validation)

Integrate AI into API development workflows to improve specification quality, consistency enforcement, and documentation accuracy

Reduce bespoke implementations by providing shared patterns, libraries, and templates for API development

Improve API consistency, discoverability, and usability across services

Enable faster internal and partner integrations through well-defined, reliable, and documented APIs

Partner with engineering teams to migrate legacy or inconsistent APIs toward standardized patterns

Make standardized patterns easy to adopt through strong defaults, documentation, and developer tooling

Build shared libraries, SDKs, and tooling that teams use directly when developing APIs

Ideal Experience:

Deep experience with OpenAPI / Swagger and API contract design

Experience building or enforcing API standards through tooling (linting, schema validation, code generation, CI/CD integration)

Strong understanding of API lifecycle management - versioning, backward compatibility, deprecation strategies

Experience building shared developer tooling, libraries, or platforms that improve consistency across teams

Experience designing APIs for internal and external consumers (developer experience focus)

Familiarity with contract testing and schema validation approaches

Experience identifying and eliminating inconsistencies across APIs at scale

Strong systems thinking - ability to balance flexibility, standardization, and developer velocity

Experience using AI to improve API development workflows, including:

• Generating and refining API specifications from code or usage patterns

• Validating contracts and identifying inconsistencies across APIs

• Improving documentation quality and discoverability

• Assisting in API design decisions and schema evolution

• Analyze API usage patterns and inform design, versioning, or deprecation decisions

Qualifications:

Software Engineering

4+ years of software engineering experience with ownership of production systems, reliability, or operational improvements.

Strong backend development experience (Ruby, Node.js, or similar).

Solid understanding of REST APIs, service contracts, API design, and software design principles.

Experience designing and maintaining scalable, consistent, and maintainable APIs in production environments.

Experience working across backend services, APIs, and production systems.

Cloud & Production Systems

Experience building and operating services in AWS or similar cloud environments.

Good understanding of distributed systems, cloud-native architecture, and CI/CD.

Experience with observability, production debugging, and incident response.

On-Call & Reliability

Willingness to participate in a mandatory 24/7 on-call rotation.

Experience responding to production incidents and contributing to reliability improvements.

AI-Assisted Development

Experience using, or strong interest in, AI-powered development tools (e.g., GitHub Copilot, ChatGPT, Cursor).

Ability to evaluate and refine AI-generated code, APIs, specifications, and developer workflows.

Company Description

One Identity enables organizations of all sizes to better secure, manage, monitor, protect, and analyze information and infrastructure to help fuel innovation and drive their businesses forward. With team members around the globe, we intend to continue to grow revenues and add value to customers.

When you join our team, you will have the opportunity to build and develop products at a scale few others can provide. Our product portfolio serves a large base of customers and we are addressing the strategic imperatives for enterprise businesses. Working with some of the most talented employees the industry has to offer, we provide enhanced career opportunities for team members to learn and grow in a rapidly changing environment.

Come join us. For more information, visit us on the web at One Identity Careers | Explore Opportunities with the OI Team

Job seekers should be aware of fraudulent job offers from online scammers and only apply to roles listed on quest.com/careers using our applicant system. Note: We do not use text messaging or third-party messaging apps like Telegram to communicate with applicants, so please exercise caution if you are approached in this way and only interact with people claiming to be Quest employees if they have an email address ending in @quest.com or @oneidentity.com