CrawlJobs Logo
OpenAI Logo OpenAI · IT - Software Development

Software Engineer, API Engineer

United States, San Francisco 230000.00 - 385000.00 USD / Year · Job Posted February 21, 2026
Apply Position
Job Link Share

Job Description

Our team brings OpenAI’s most capable technology to the world through our developer platform: the OpenAI API. As the leading AI development platform, our API is used by millions of developers and the majority of enterprises around the world, and powers the majority of AI applications that you may use on a daily basis. Most recently, we’ve released gpt-5, gpt-realtime, Responses API, Agents SDK, and many other products and features. We are looking for a software engineer to own the design of our APIs. Our API is our product, and as such we treat its design and development with care and intentionality. Every endpoint, every field name, and every enum value is a product interface that we want to design well. We are looking for engineers who not only love building APIs, but who will also sweat the details around API design and have a discerning taste for well designed API experience. You will play a major role in shaping the future roadmap of the OpenAI API – by both building and designing it.

Job Responsibility

  • Design and build products that we launch in API – extending existing endpoints, adding new endpoints, or rethinking our entire API suite
  • Play a major role in our API Review process – working with all other teams to ensure our APIs meet our design standard
  • Collaborate closely with the rest of the API team, our Developer Experience team, and our GTM team to make our APIs the best in the world

Requirements

  • Appreciate taste in API design
  • Can thrive and operate independently in a fast-paced environment with ambiguous requirements and goals
  • Love building for other developers, and thrive on feedback from opinionated users
  • Are an engineer at heart, but are willing to lean into product decisions
  • Think of APIs as ladders

What we offer

  • Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
  • Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
  • 401(k) retirement plan with employer match
  • Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
  • Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
  • 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)
  • Mental health and wellness support
  • Employer-paid basic life and disability coverage
  • Annual learning and development stipend to fuel your professional growth
  • Daily meals in our offices, and meal delivery credits as eligible
  • Relocation support for eligible employees
  • Additional taxable fringe benefits, such as charitable donation matching and wellness stipends
OpenAI - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Software Engineer, API Engineer

8 matching positions

Software Engineer / Senior Software Engineer - Data Engineering GitHub

As a Software Engineer at GitHub, you will enhance the collaboration experience ...
Location
Location
Czech Republic , Multiple Locations
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND experience in Data Engineering and coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python OR equivalent experience.
  • Master's Degree in Computer Science or related technical field AND engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust or Python OR Bachelor's Degree in Computer Science or related technical field AND engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust or Python OR equivalent experience.
Job Responsibility
Job Responsibility
  • Design, develop, test and ship high-quality technical solutions that scale across multiple GitHub services.
  • Collaborate with cross-functional teams to define and implement innovative solutions.
  • Provide technical leadership, mentorship, pairing opportunities, and code reviews to encourage the growth of others.
  • Own and advocate for the health and quality of the systems that the team builds, including participating in on-call and first responder rotations
  • Write architecture briefs and proposals, carry out code experiments, and build prototypes to learn how we can achieve planetary scale with our systems.
  • Design and implement APIs to facilitate seamless integration between software components.
  • Utilize CI/CD tools to set up automated pipelines for continuous integration and delivery.
  • Become intimately familiar with the systems you build and take pride in writing maintainable code.
  • Fulltime
Read More
Arrow Right

Software Engineer II/Sr. Software Engineer

Join Microsoft’s Core AI team and help shape the future of intelligent software ...
Location
Location
United States , Redmond
Salary
Salary:
100600.00 - 199000.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Ability to meet Microsoft, customer and/or government security screening requirements is required for this role
  • This position will be required to pass the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter
Job Responsibility
Job Responsibility
  • Design and ship AI-assisted features in Visual Studio that help developers generate, explain, and refactor code—measured by adoption, reliability, and user satisfaction
  • Bring intelligence into IDE by integrating GitHub Copilot/MCP tools into core IDE workflows with strong attention to performance, privacy, and safety-by-default
  • Collaborate with partner teams across Microsoft and GitHub to deliver secure, performant solutions and iterate quickly based on real developer feedback
  • Contribute to designs (APIs, data flows, extensibility points) and participate in code/design reviews to maintain quality and scalability for a large codebase
  • Instrument and learn using telemetry, experimentation, and diagnostics to improve latency, reliability, and relevance over time
  • Fulltime
Read More
Arrow Right

Senior Software Engineer and Principal Software Engineer - Power Point AI Team

The PowerPoint team is embarking on an exciting new chapter - evolving a product...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
  • Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • 8+ years of experience in backend service engineering, including work on high-scale infrastructures
  • Proficiency in one or more systems programming languages such as C#, C++
  • 1+ years of experience in software engineering, designing and developing systems (and APIs) that deploy and integrate with AI models
  • 2+ years of experience working with rich telemetry, making data driven decisions, and carrying out rapid experimentation
  • 2+ years of experience building software for scale, performance, and reliability
  • Academic or industry experience with building, finetuning, deploying or building eval-driven systems utilizing the models (any category)
Job Responsibility
Job Responsibility
  • Lead design and delivery of complex, scalable AI features ensuring resilience and exceptional user experience
  • Drive technical strategy and architecture decisions across multiple services, influencing partner teams and aligning with compliance and security requirements
  • Champion modern engineering practices, including AI-driven approaches, automation, and cloud-native patterns, across the full development lifecycle
  • Mentor and guide engineers, fostering technical excellence and continuous improvement in security, reliability, and performance
  • Collaborate cross-org to solve challenging technical problems, streamline processes, and reduce operational costs while improving live-site health
  • Design and implement scalable backend services optimized for machine learning workflows and large language model integration
  • Develop and maintain evaluation-driven systems that leverage text and multimodal inputs (e.g., images) to power visual-creation experiences
  • Build and optimize APIs and infrastructure to support high-performance model inference and experimentation at scale
  • Collaborate with product, ML, and design teams to integrate models into user-facing features, ensuring seamless functionality and performance
  • Conduct model evaluations and experiments, analyze results, and iterate on improvements to enhance accuracy and user experience
  • Fulltime
Read More
Arrow Right

Software Engineer II and Senior Software Engineer

The FIO (Office Files and Identity) Team drives collaboration, identity, cloud f...
Location
Location
United States , Redmond
Salary
Salary:
100600.00 - 199000.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, or Rust
  • OR equivalent experience
  • 4+ years industry engineering experience coding in languages including, but not limited to, C, C++, C#, Java or Rust
  • 4+ years industry experience building and shipping production quality, performant and cross-platform applications
  • Experience collaborating cross-team and cross-function to deliver software features or projects
  • Platform-specific experience building Windows, MacOS, iOS or Android applications
  • Experience designing and implementing efficient network communications, including network protocols, performance and reliability tooling, modeling and implementing complex customer scenarios across network services
  • Experience designing and implementing client-side storage stacks, with a focus on correctness, resiliency, performance, and adaptability
  • Understanding of client file system design and APIs, including advanced performance optimizations
  • Experience directly implementing large-scale data pipelines for product telemetry, with ability to evolve system as business and technical needs change
Job Responsibility
Job Responsibility
  • Design and write code
  • Work across organizations and directly with partners both in Office and across Microsoft, including other engineers and product leaders
  • Use data as the basis for decision making
  • Be a steward of products that ship to hundreds of millions of customers around the world, staying connected to customers through data and feedback and being agile and responsive to issues
  • Grow as an engineer in a modern and highly impactful team
  • Fulltime
Read More
Arrow Right

Software Engineer, Api Integrations

We are seeking talented candidates to join our professional services engineering...
Location
Location
United States , NY/LA/St. Pete/Boulder/Chicago
Salary
Salary:
120000.00 - 140000.00 USD / Year
videoamp.com Logo
VideoAmp
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong programming skills in a range of technologies, languages, and standards, such as strongly-typed languages (Golang, Java, Scala etc.), SQL, REST, SOAP, Data Transformations, JSON, OpenAPI
  • Experience in Golang
  • Expertise in cloud platforms (AWS, GCP)
  • Expertise in relational databases, such as Postgres and Snowflake
  • Exceptional communication skills, with the ability to convey technical concepts to non-technical stakeholders and ask clarifying questions to develop technical requirements
  • Strong track record of collaboration with cross-functional teams in a dynamic environment
  • Familiarity with the television, streaming, and digital advertising ecosystem is strongly preferred
  • Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience)
  • Strong interest in technology and client-facing work, with the desire to grow into a technical account or solutions role
  • Basic understanding of APIs and integration concepts (e.g., REST, JSON) through coursework, internships, or hands-on learning
Job Responsibility
Job Responsibility
  • Collaborate with cross-functional teams, including Product, Engineering, and Client Success to ensure smooth implementation
  • Serve as the main point of contact for clients during onboarding and integration, escalating complex issues to senior team members as needed
  • Learn the VideoAmp API suite to guide clients through integration processes and troubleshoot common issues
  • Learn the relevant segments of the VideoAmp relational data model to troubleshoot problems
  • Support the implementation of technical solutions that align with client needs and business objectives
  • Assist in managing client integration projects by coordinating tasks, gathering requirements, and ensuring timely communication
  • Document integration processes, client configurations, and technical learnings to contribute to team knowledge and efficiency
  • Identify and work closely with internal teams to address gaps and deficiencies
What we offer
What we offer
  • Equity
  • Discretionary & flexible PTO + Spring, Summer & Winter company breaks
  • Comprehensive medical, dental & vision for you and your dependents — including multiple options fully covered by VideoAmp
  • 401(k) with matching
  • HSA & FSA
  • Unlimited financial wellness sessions with Origin financial advisors
  • Paid Maternity & Parental Leave for all family additions
  • Cell phone reimbursement
  • Commuter benefits
  • Fulltime
Read More
Arrow Right

Staff Backend Software Engineer - API Platform

Perplexity is redefining how people search, reason, and interact with informatio...
Location
Location
United States , San Francisco, New York City, Seattle
Salary
Salary:
250000.00 - 385000.00 USD / Year
perplexity.ai Logo
Perplexity
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of backend engineering experience with Python, Go, or Rust
  • Strong understanding of high-traffic API design: versioning, schema evolution, idempotency, auth patterns, and performance tuning
  • Hands-on experience running AWS services, plus fluency with Kubernetes, CI/CD, and modern DevOps practices
  • Experience with LLM or natural-language APIs (latency tuning, streaming, model orchestration) is a strong plus
  • Strong customer empathy and product sense, ensuring the APIs you build are ergonomic, well-documented, and easy to adopt
Job Responsibility
Job Responsibility
  • Design, build, and operate mission-critical APIs in Python, Go, or Rust optimized for low latency, high throughput, and strong consistency
  • Lead major technical initiatives, from new platform components to multi-team system redesigns
  • Improve system reliability and security by implementing rate limiting, authentication, observability (metrics, tracing, logging), and automated testing
  • Collaborate across teams to determine when to extend existing systems versus build new, specialized services
  • Translate customer needs into scalable platform capabilities and generalized API features
  • Uphold engineering excellence through design reviews, code quality, and internal documentation
What we offer
What we offer
  • Comprehensive health, dental, and vision insurance for you and your dependents
  • Includes a 401(k) plan
  • Offers Equity
  • Fulltime
Read More
Arrow Right

Software Engineer – API & SAP Integrations

We are seeking an experienced and motivated Contract Software Engineer to play a...
Location
Location
United States , Lewiston, Maine
Salary
Salary:
Not provided
tier4group.com Logo
Tier4 Group
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree in Computer Science, Information Technology, or equivalent professional experience
  • 3-5+ years of professional experience in a software development role
  • Demonstrable, hands-on experience designing, building, and maintaining RESTful APIs and web services is required
  • Solid understanding of database design and management with systems like MySQL and/or MS SQL Server
  • Proficiency in at least one server-side programming language (e.g., PHP, Python, Java, C#, etc.)
  • Experience working on large-scale system integration or data migration projects
  • Excellent problem-solving and analytical skills with a keen attention to detail
  • Strong communication and collaboration skills, with the ability to work effectively with cross-functional teams
  • Self-motivated and able to manage tasks and deadlines effectively in a remote environment
Job Responsibility
Job Responsibility
  • Design, develop, test, and deploy robust and scalable API integrations between front-end applications and the SAP backend
  • Collaborate closely with internal development teams, business analysts, and our external SAP integration partner to translate business requirements into technical solutions
  • Analyze existing applications (primarily built on PHP/Laravel) to map data flows and determine the best integration strategies
  • Write clean, high-quality, and well-documented code that adheres to company standards and best practices
  • Provide technical support and maintenance for legacy PHP applications throughout the transition period to ensure business continuity
  • Troubleshoot and resolve complex technical issues related to APIs, data integrity, and system performance
  • Participate in code reviews to ensure quality, security, and adherence to project specifications
  • Proactively identify and suggest improvements to our integration architecture and development processes
Read More
Arrow Right

Senior Software Engineer API

Welcome to our API squad! We’re just your friendly bunch of code wizards, crafti...
Location
Location
Germany , Berlin
Salary
Salary:
Not provided
smartclip.tv Logo
Smartclip Europe GmbH
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years XP as Backend/API Developer in Node.js + TypeScript
  • Legendary SQL & DB design skills (PostgreSQL = epic weapon)
  • ORM wisdom (knowing both the buffs and nerfs)
  • Strong in automated testing (jest/mocha, coverage quests)
  • Docker, Git, JavaScript, SQL – all mastered
Job Responsibility
Job Responsibility
  • Develop and maintain microservices that connect worlds (internal & external systems)
  • Command side quests (and sometimes the main questline) when the Tech Lead is away from keyboard
  • Shape the team’s strategy with your strong opinions and battle-tested experience
  • Master the arts of authentication & authorization (OAuth, Auth0 integrations, specs reading = your spellbook)
  • Design & optimize SQL databases like a level 99 architect (bonus points for PostgreSQL mastery)
What we offer
What we offer
  • Cutting-edge gear – Mac, Linux, or your weapon of choice
  • Flex mode – hybrid work, flexible hours, and even “Smart Fridays” (4-day week opportunity)
  • Level-up opportunities – trainings, hackathons, conferences & coaching
  • Perks & power-ups – JobRad, Deutschland-Ticket, Urban Sports Club, RTL+ Premium & more
  • Epic guild life – team events, knowledge sharing, and plenty of XP along the way
  • Anniversary Programme
  • Corporate Benefits
  • Gift Matching
  • Mental Health support
  • Referral Programme
  • Fulltime
Read More
Arrow Right