• Write code for small features or modules using PHP • Design basic functions, avoiding duplications and interface-breaking changes • Debug recurring issues and contribute to test automation • Participate in code reviews and learn from feedback • Apply team practices for debugging and adhere to code quality standards • Understand common security vulnerabilities and how to avoid them • Communicate progress and complete tasks as forecasted • Update documentation and user guides • Participate in sprint planning and backlog refinement • Contribute to Agile development practices • Stay curious about emerging AI tools and share what you learn with the team

• Design, build, and maintain back-end services using C#, ADO.NET, and SQL Server. • Implement and evolve SOAP and REST APIs, ensuring best practices and versioning standards. • Ensure service reliability through unit and integration testing, troubleshooting, and root-cause analysis. • Collaborate on integration between various systems and services, applying software design patterns. • Conduct code reviews and provide mentorship to junior team members. • Stay up to date with emerging technologies and industry trends, applying them to improve existing solutions. • Contribute to CI/CD workflows and best practices to enhance development efficiency.

• Define and lead the architecture of the enterprise Generative AI platform • Build and evolve the strategic roadmap for the AI platform • Design scalable architectures using LLMs, SLMs (Small Language Models), RAG, and multi-agent systems • Implement and optimize fine-tuning strategies for SLMs, including domain adaptation and resource-efficient approaches • Enable self-service AI capabilities for product and engineering teams • Create reusable frameworks, blueprints, and accelerators • Implement CI/CD pipelines for AI solutions • Ensure governance, security, observability, and regulatory compliance • Integrate data, models, agents, and applications in a unified manner • Define standards, best practices, and an AI-specific SDLC (evaluation, testing, and deployment) • Serve as a technical reference and foster cross-functional collaboration • Integrate agent protocols and interoperability: Agent-to-Agent Protocol (A2A), Model Context Protocol (MCP), Agent Payments Protocol (AP2, ACP), Verifiable Intent (VI) • Implement an agent engineering platform for observability, evaluation, and tracing • Develop frameworks for continuous improvement of agent quality • Enable no-code / low-code agents for scaled adoption by business teams

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here. We are looking for inquisitive, well-rounded Backend engineers to join our Core, Monetization, and Tech Foundations engineering teams. Working closely with product managers, designers, data scientists, and backend engineers, you’ll play an important role in enabling the newest technologies and experiences as we scale and evolve. You will build robust frameworks & features. You will accelerate velocity for one of the world’s largest public cloud workloads. You will empower both developers and Pinners alike. You’ll have the opportunity to find creative solutions to thought-provoking problems. Even better, because we covet the kind of courageous thinking that’s required in order for big bets and smart risks to pay off, you’ll be invited to create and drive new initiatives, seeing them from inception through to technical design, implementation, and release. What you’ll do: - Build out the backend for Pinner-facing features to power the future of inspiration on Pinterest - Partner with design, product, and backend teams to build end-to-end functionality - Put on your Pinner hat to suggest new product ideas and features - Employ automated testing to build features with a high degree of technical quality, taking responsibility for the components and features you develop - Grow as an engineer by working with world-class peers on varied and high impact projects - Design, develop, and operate large scale, distributed systems and networks - Work with Engineering customers to understand new requirements and address them in a scalable and efficient manner - Actively work to improve the developer process and experience in all phases from coding to operation - May contribute to and lead each step of the product development process, from ideation to implementation to release; from rapidly prototyping, running A/B tests, to architecting and building solutions that can scale to support millions of users - Leverage AI to seek faster execution (i.e. draft, prototype, outline) and explore alternative options (i.e. iterate, compare approaches) - Leverage AI to synthesize information (summarize, distill themes) and automate repeatable tasks (documentation, reporting, QA checks) What we’re looking for: - Bachelor’s degree in Computer Science, a related field or equivalent experience. - 4+ years of industry backend development experience, building consumer or business facing products - Proficiency in common backend tech stacks for online service, storage, caching and data processing - Proficiency in building GraphQL APIs and converting REST to GraphQL - Passionate about working on a Platform team; experience owning large projects - Self-motivated and a desire to improve the lives of other developers / internal developer productivity - Experience in following best practices in writing reliable and maintainable code that may be used by many other engineers - Ability to keep up-to-date with new technologies to understand what should be incorporated - Strong collaboration and communication skills - Experience building & operating large scale distributed systems and/or networks. Bonus points if you enjoy deploying and operating large scale workloads on a public cloud footprint - Experience in Python, Java, C++, or Go or another language and a willingness to learn - Demonstrated ability to use AI to improve speed and quality in your day-to-day workflow for relevant outputs. - Strong track record of critical evaluation and verification of AI-assisted work (e.g., testing, source-checking, data validation, peer review). - High integrity and ownership: you protect sensitive data, avoid over-reliance on AI, and remain accountable for final decisions and deliverables. This position is not eligible for relocation assistance. #LI-SA1 #LI-REMOTE At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for equity. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise. Information regarding the culture at Pinterest and benefits available for this position can be found here. US based applicants only $149,600—$308,000 USD Our Commitment to Inclusion: Pinterest is an equal opportunity employer and makes employment decisions on the basis of merit. We want to have the best qualified people in every job. All qualified applicants will receive consideration for employment without regard to race, color, ancestry, national origin, religion or religious creed, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, age, marital status, status as a protected veteran, physical or mental disability, medical condition, genetic information or characteristics (or those of a family member) or any other consideration made unlawful by applicable federal, state or local laws. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you require a medical or religious accommodation during the job application process, please complete this form for support.