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Openapi Developer Jobs

4 jobs found

4d ago

Senior Software Engineer II, Enterprise Platform

Lila Sciences San Francisco, CA

San Francisco, CA

4d ago

$180k - $256k/yr Full time Backend Developer Senior API

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Job Description

Benefits and Culture

Location: onsite in San Francisco, CA. This role offers a competitive annual salary range of USD 180,000 - 256,000. You will join a mission-driven organization that values truth, trust, curiosity, grit, and velocity, delivering startup‑level momentum while tackling problems of historic scale.

Our internal scientists span physical and life sciences and are first-class users of the platform. You will design for both researchers and external developers, collaborating across infrastructure, data, applications, and science teams to deliver reliable backend systems. Lila Sciences is an equal opportunity employer focused on a diverse, inclusive culture.

About Lila

Lila Sciences is building Scientific Superintelligence to solve humankind's greatest challenges. Rather than hard-coding expert knowledge into tools, Lila develops systems that can learn for themselves.

We combine advanced AI models with proprietary AI Science Factory instruments into an operating system for science that executes the entire scientific method autonomously, accelerating discovery at unprecedented speed, scale, and impact across medicine, materials, and energy. Learn more at www.lila.ai.

Responsibilities

Multi-Tenancy & Authorization: design secure tenant isolation, authentication, authorization, and auditing across customer organizations, including boundaries and isolation guarantees required for enterprise and regulated deployments. Build resilient backend services in Python with FastAPI and own multi-tenant data schemas and tenant-aware query patterns.
Tenant Self-Serve & Lifecycle: develop services for tenant provisioning, self-service administration, and onboarding workflows. Support billing, pricing, and metering surfaces for enterprise customers.
Public & Agent-Facing APIs: own and evolve public APIs (REST, streaming, async) for human developers and autonomous agents, ship SDKs, and define interfaces that agents call.
MCP & Agent Integration: craft integration paths that connect MCPs, agents, and data into the platform, including onboarding customer-owned MCPs/agents/data and ensuring isolation and trust within a tenant.

Requirements

7+ years of backend software engineering with meaningful experience in APIs, backend services, or platform infrastructure.
Strong expertise in one or more: API design and versioning, multi-tenancy, authentication/authorization, or backend services at scale.
Proficiency in Python (FastAPI), Kubernetes, AWS, and databases (SQL or document databases).
Commitment to developer experience, writing clear errors, and preserving backward compatibility.
Demonstrated ability to ship working code regularly, debug production issues, and own systems end-to-end.
Collaborative mindset across infra, data, apps, and science teams; build for internal scientists and external developers, communicating tradeoffs clearly in ambiguous situations.

Technologies

Python
FastAPI
Kubernetes
AWS
SQL databases
Document databases
REST
Streaming
Async
OpenAPI
OIDC
OAuth 2.0
MCP

Bonus Points

Experience building or maintaining multi-tenant SaaS platforms with audit, compliance, or isolation requirements (SOC 2, HIPAA, GxP, FedRAMP).
Shipped public developer platforms, APIs, or SDKs and understand what makes integrations durable.
Familiarity with MCP, OpenAPI, or OIDC/OAuth 2.0.
Worked on tenant isolation patterns (row-level security, per-tenant schemas, search-path isolation).
Experience with policy-based authorization (OPA) or externalized authorization models.

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10d ago

Senior Software Engineer

Hilton McLean, VA 🇺🇸 Remote

McLean, VA

10d ago

$130k - $145k/yr Full time Backend Developer Senior API

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Job Description

Hilton is seeking a Senior Software Engineer to design and scale payments microservices from a base in McLean, VA, with the flexibility of remote work across the United States. The role centers on building robust backend services in Java, communicating via REST APIs, and ensuring reliable financial transactions through disciplined testing and open API specifications. The position offers a salary range of USD 130,000 to 145,000 per year.

Responsibilities

Design and develop scalable payments microservices using JDK 11 and JDK 21, leveraging frameworks such as Spring Boot, Dropwizard, JAX-RS, and Java REST APIs.
Build and optimize CRUD operations across services with MySQL, prioritizing performance, data integrity, and reliability in financial transactions.
Practice Test-Driven Development, write unit tests with JUnit, and integrate tests with Cucumber to ensure robustness and maintainability.
Participate in peer code reviews via Git and Stash, providing constructive feedback to raise code quality and enforce best practices.
Generate and maintain API specifications and service contracts using OpenAPI/Swagger Codege to enable seamless integration across internal and external systems.
Travel domestically up to 10% as part of the role.

Requirements

Bachelor's degree or foreign equivalent in Information Systems Technologies, Software Engineering, or a related field.
Three years of experience in technology, software engineering, or a related occupation.
Experience developing and enhancing enterprise backend microservices using Java.
Frontend features using Angular.
Building and maintaining RESTful APIs with Spring Boot, JAX-RS, Jersey, and Lombok for CRUD operations, service orchestration, and system integration.
Designing Angular components and leveraging RxJS for state management and reactive programming.
Applying Test-Driven Development with JUnit, Karma, and Jasmine to ensure quality.
Conducting unit and integration testing with frameworks such as JUnit and Cucumber.
Contributing to projects through CI/CD pipelines and build tools such as Maven for automated builds, testing, and deployments.
Experience working with relational databases.
Ability to collaborate in Agile environments including Scrum and Kanban to deliver scalable solutions.

Technologies

JDK 11, JDK 21
Spring Boot
Dropwizard
JAX-RS
Jersey
Lombok
MySQL
JUnit
Cucumber
Git
Stash
OpenAPI/Swagger Codege
Angular
RxJS
Karma
Jasmine
Maven

Benefits

Health, dental, and vision insurance
401(k)
PTO
Life and disability insurance

Join an award-winning workplace culture

Hilton emphasizes delivering exceptional experiences for guests while fostering an outstanding environment for its Team Members. As a global leader in hospitality, the company has welcomed more than 3 billion guests worldwide and remains committed to its founding vision of spreading the light and warmth of hospitality. Hilton's culture has earned repeated recognition on the World’s Best Workplaces lists compiled by Great Place to Work and Fortune. With a portfolio of world-class brands and a company-wide pledge to creating memorable stays, Hilton continues to set new standards for the travel industry.

Whether you are starting your career or exploring something new, Hilton supports professional growth at every stage. This is a place to join for the long term, contributing to remarkable stays while building a lasting career. For more insight into life at Hilton, the Careers Blog offers a window into what makes Hilton a great place to work.

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10d ago

Web Software Developer (UI)

Amentum Remote 🌍 Remote

Remote

10d ago

$135k - $145k/yr Full time Angular API Bootstrap

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Job Description

Amentum is seeking a Web Software Developer (UI) to drive front-end and interface work using Angular and Node.js. This remote role covers shaping site concepts, crafting interfaces and architecture, and conducting testing and optimization, requiring at least three years of experience and an active TS/SCI clearance. The position offers an annual salary between USD 135,000 and 145,000.

Responsibilities

Develop front-end code with the current Angular stack (20+), Node.js, NPM, RxJS, Bootstrap, and Material.
Assist with implementing interfaces for applications.
Work with HTTP and RESTful communication patterns.
Leverage Swagger for API design and documentation.
Support the site concept, interface design, and application architecture.
Participate in designing software tools and subsystems to support reuse and domain analysis.
Familiarity with Claude or other AI interfaces.
Test, diagnose, and refine software to deliver the required product.
Use Playwright testing and Angular unit tests to ensure quality.
Enhance software to reduce operating time and improve efficiency.
Create new software and modify existing software to ensure efficiency and integrity across systems and applications.
Modify existing software and develop special-purpose software to maintain efficiency and integrity between systems and applications.
Provide support in developing the website concept, interface design, and architecture.

Requirements

Bachelor’s degree.
Minimum of three years as a dedicated Web Software Developer.
Active TS clearance (TS/SCI) with the ability and willingness to undergo a polygraph.

Technologies

Angular 20+
Node.js
NPM
RxJS
Bootstrap
Material
Swagger
Playwright
Claude

Benefits

Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits including 401(k) matching
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance

Other Responsibilities

Safety: Amentum maintains a safety culture and expects employees to complete training, participate in emergency response tasks, and serve on safety committees as appropriate.
Quality: The organization prioritizes quality to meet customer expectations; employees must follow the Quality Policy and applicable Quality System documents and contracts.
Procedure Compliance: Employees must read, understand, and implement the safety, quality, and environmental requirements of all plans, procedures, and policies relevant to their role.

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11d ago

Software Engineer

Liberty Mutual Indianapolis, IN

Indianapolis, IN

11d ago

$83k - $157k/yr Full time Backend Developer API APIs

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Job Description

Liberty Mutual is seeking a Software Engineer to join its Indianapolis team in a hybrid work arrangement. The role centers on third party integrations and the development of scalable APIs and cloud-native components within an agile environment.

Responsibilities

Collaborative partner: Working with the I Buy I Sell - Third Party Integrations team of product owners and engineers, you will tackle technical challenges and ensure quality as we build technologies to meet customers and partners where they are.
Problem solver: Complex problems require innovative, creative approaches, and you will craft outside-the-box solutions to address them.
Customer-centric developer: You understand who we are here to serve, and the products you develop keep the end user front and center.
Forward thinker: Proactive mindset and initiative drive continuous improvements in performance, quality and efficiency.
Quality-first mindset: Ensure quality through collaborative, test- and behavior-driven development.

Requirements

A minimum of three years of software engineering experience.
Experience in an agile environment using Scrum, Kanban or XP.
Demonstrated success in platform modernization initiatives, utilizing technologies such as REST; micro services; cloud platforms such as AWS, Azure or Google Cloud; and JavaScript, TypeScript, and NodeJS.
Ability to code in multiple languages, including an object-oriented language, preferably Java/J2EE or C#/NET.
Strong oral and written communication skills—and the ability to explain your decision-making process to non-engineers.
Collaborative, adaptable working style with curiosity and initiative, and the ability to prioritize time and efforts.
A thorough grasp of technology concepts, business operations, design and development tools, system architecture and technical standards.
Familiarity with CI/CD and DevOps tools.
A Bachelor’s degree in a technical or business discipline, or equivalent experience.

Technologies

REST
micro services
AWS
Azure
Google Cloud
JavaScript
TypeScript
NodeJS
Java/J2EE
C#/.NET
CI/CD
DevOps tools
OpenAPI

Benefits

comprehensive benefits
workplace flexibility
professional development opportunities
Employee Resource Groups

Fair Chance Notices

California
Los Angeles Incorporated
Los Angeles Unincorporated
Philadelphia
San Francisco

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