Team Charter:  

The Data team is the engine of intelligence at OfferUp. Our mission is to transform massive amounts of marketplace data into seamless, safe, and personalized experiences that empower millions of people to connect and prosper. We bridge the gap between complex algorithms and real-world customer impact across search, trust & safety, and personalization.

About the role: 

AI is transforming how millions of people buy, sell, and connect on OfferUp - and this role is at the center of making that happen. As an AI Engineer on the Data team, you will own the production systems — from agentic workflows and RAG pipelines to LLM integrations - that turn our marketplace intelligence into real customer experiences. From enhancing search ranking and personalization to powering fraud detection and generative AI features, your work will have a company-wide impact and be felt by millions of users every day. The Data team reports into the broader engineering organization and directly influences OfferUp's most critical product surfaces.

We are looking for an AI Engineer to join our Data team. This team is tasked with building the core intelligence - supporting  search ranking, recommendation engines, fraud detection, and generative AI features - that is critical to OfferUp's success as the leading local marketplace. You will be part of a cross-functional team that includes Data Engineering and Data Science, serving as the bridge that turns research and models into shipped, production-grade AI systems.

What we love about this role: 

• Breadth of Impact: You won't be siloed; you will build AI systems that drive results across Search & Discovery, Trust & Safety, Advertising, and core Personalization.
• Modern AI Stack: Work with agentic frameworks (LangChain, LangGraph), RAG architectures, and LLM APIs to solve real marketplace problems.
• Production Ownership: You will build, ship, and own AI features end-to-end, from design through deployment.
• Collaborative Environment: Work alongside Senior Data Scientists and Engineers, positioning you at the intersection of research and production.

In this role, you will 

• Design and build agentic AI systems and RAG pipelines for production features across the marketplace.
• Integrate LLMs into product experiences across search, categorization, communication, and trust & safety.
• Partner with Data Scientists and Engineers to turn research into shipped products.

Here’s more of what you will get to do:

• Impact on Product: Deliver the next generation of Search, Personalization, and Trust & Safety features powered by reliable, production-quality AI systems.
• Impact on Company: Directly contribute to key business KPIs (conversion, retention, fraud reduction) by turning data science insights into shipped capabilities.
• Critical Projects: Production RAG pipelines for intelligent discovery; agentic workflows for marketplace automation; tooling and infrastructure for rapid, safe LLM deployment.

You’ll thrive in this role if you have:.

• 2-4 years building and deploying AI/ML systems in production.
• 2+ years professional Python development.
• Hands-on experience with agentic frameworks (LangChain, LangGraph, or similar) including function calling and tool-use design.
• Practical experience building RAG systems (vector search, semantic chunking, rerankers).
• Experience with LLM APIs, prompt engineering, and structured outputs.
• Proficiency with async Python (asyncio, streaming) and Pydantic.
• Strong SQL skills for large-scale data systems.
• Bachelor's in CS, Math, Statistics, or related field (or equivalent experience).
• Collaborative mindset and strong communication skills.

Helpful, but not required: [nice to haves]

• LLMOps tooling: evals (Ragas, DeepEval), observability (LangSmith, Arize Phoenix), guardrails (NeMo).
• Cloud deployment of AI services (AWS preferred).
• GraphRAG or knowledge graph integration (Neo4j/FalkorDB).
• ReAct, Plan-and-Solve, or multi-agent collaboration patterns.

Compensation Range: $140,000 - $160,000

OfferUp offers a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. Individual salaries within our ranges are determined through a variety of factors, including but not limited to education, experience, knowledge, skills, and geography. All roles will receive equity in OfferUp as part of their compensation, the amount of equity varying depending on the individual’s level and experience.

Benefits (all US roles): In addition to our compensation package, this role is eligible to enroll in health insurance, healthcare savings and spending accounts, retirement savings benefits (401(k) plan with match), basic and voluntary life insurance, disability benefits, and paid time off for sick leave, family and/or medical leave, vacation, and 12 company holidays. In regard to vacation time, OfferUp has a flexible vacation policy, and, in general, full-time, exempt employees will be expected to take 3-5 weeks (15-30 days) of pre-planned vacation time per year. Vacation needs are flexible and will naturally vary from year to year based on individual circumstances and business needs. In regard to sick time, all full-time employees (exempt and non-exempt) will be granted 12 days (96 hours) of sick time per year (pro-rated if the start date is other than January 1). Your recruiter can share more details about specific benefits during the interview process.

About the role:

OfferUp is looking for a high-impact People Business Partner (PBP) who thrives at the intersection of coaching and building. We need a partner who can be the trusted "first call" for our managers while simultaneously owning the end-to-end execution of the programs that make our people experience exceptional.

In this role, you will be a key member of our "small but mighty" People Team. You will leverage data and business insights to drive solutions that move the business forward, whether you are coaching a manager through a real-time challenge or optimizing our performance management cycles. This position requires strategic foresight, high EQ, and the ability to build trust across all levels of the organization. You’ll partner closely with the Director of People and a talented People “pod” with enough autonomy to make your mark and enough support to go far.

Here’s more of what you will get to do:

• Manager Coaching & Employee Relations: Serve as the trusted first call for in-the-moment coaching on employee relations, performance management, and team dynamics.
• Manager Enablement: Act as a developmental editor for performance documentation (PIPs, annual reviews, and feedback) and build the toolkits and frameworks that equip managers to lead self-sufficiently  across the frontline.
• Program Design & Execution: Own the end-to-end design, launch, and project management of core people programs, including Performance Management, Merit/Promotion cycles, and Engagement Surveys.
• Systems Power-User: Act as the primary configuration and reporting lead for Culture Amp; producing executive-ready visualizations and identifying data trends to influence people strategy.
• Content Optimization: Transform internal frameworks and leadership philosophies into professional, "ready-to-wear" toolkits and resources.
• Global Administration: Direct the administrative lifecycle for nearshore professionals via the Globalization Partners portal, managing contracts, bonuses, and job changes.
• Onboarding Excellence: Facilitate the cultural onboarding experience for new hires, ensuring immediate alignment with OfferUp’s mission and values.

You’ll be a great fit if you have:

• 3–5 years of progressive HR experience, preferably in a high-growth tech environment or startup.
• Advisory Muscle: Proven ability to coach managers and influence outcomes without direct authority; expert-level interpersonal communication skills.
• Programmatic Mindset: Experience managing or contributing to HR programs with a focus on operational excellence and optimization.
• Technical Proficiency: High comfort level in the "back-end" of HRIS systems (ADP/Culture Amp); configuration experience is a plus.
• Analytical Skills: You enjoy using data to tell a compelling story and identifying gaps in the employee experience before being asked.
• Operational Agility: You thrive in the balance of high-level advisory work and the roll-up-your-sleeves work of system administration.
• Nice to Have: Experience with global workforce administration (LATAM) and familiarity with EOR platforms like Globalization Partners.

Compensation Range: $125,000 - $140,000

OfferUp offers a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. Individual salaries within our ranges are determined through a variety of factors including, but not limited to education, experience, knowledge, skills and geography.  All roles will receive equity in OfferUp as part of their compensation, the amount of equity varying depending on the individual’s level and experience.  

In addition to our compensation package, this role is eligible to enroll in health insurance, healthcare savings and spending accounts, retirement savings benefits (401(k) plan with match), basic and voluntary life insurance, disability benefits, and paid time off for sick leave, family and/or medical leave, vacation, and 12 company holidays. In regard to vacation time, OfferUp has a flexible vacation policy and, in general, full-time exempt employees will be expected to take 3-5 weeks (15-30 days) of pre-planned vacation time per year.  Vacation needs are flexible and will naturally vary from year to year based on individual circumstances and business needs. In regard to sick time, all full-time employees (exempt and non-exempt) will be granted 12 days (96 hours) of sick time per year (pro-rated if they start a date other than January 1). Your recruiter can share more details about specific benefits during the interview process.

About the Role

Do you want to help build the future of local buying and selling?

OfferUp is looking for a Principal Product Manager - Consumer to help us run one of the most popular marketplaces in the country. This is a role for a leader who loves the "messy" challenges of a startup, someone who can stay grounded through the fast-paced ups and downs while keeping their eyes on the long-term goal.

This is a hybrid role based in our Bellevue, WA office. You’ll spend 2–3 days a week in the office, working alongside our teams to solve real problems for millions of daily users. We’re looking for someone with great product instincts, a love for data, and a genuine interest in how AI can make the marketplace better for everyone.

What You’ll Do

• Lead across a talented team: Partner with a focused group of engineers, designers, and other key stakeholders. You’ll help them navigate trade-offs and stay focused on the most important work.
• Own the user experience: Figure out which features will actually help our buyers and sellers, then build a clear plan to make them a reality.
• Drive the roadmap: Create a practical roadmap that balances big ideas with the daily reality of shipping code.
• Be a key voice: Work directly with company leadership to influence our strategy and back up your ideas with clear reasoning.
• Test and learn: Run experiments (A/B testing) to see what works and what doesn’t, using those insights to constantly improve the app.
• Bridge the gap: Work across the company with designers, data scientists, and engineers to take a feature from a rough idea to a finished product.
• Leverage AI: Use tools like Claude, Gemini, and ChatGPT to accelerate development and deliver outsized results with a small team.   

Who You Are

• A natural leader: You don’t wait for instructions. You’re comfortable juggling multiple projects and know how to get things across the finish line.
• A problem solver: You have a history of looking at a complicated situation and finding a creative, simple way through it.
• A great communicator: You can take a complex technical concept and explain it to a non-technical room without losing the "why."
• Data-informed: You’re comfortable digging into the data to understand user behavior and measure success.
• A seasoned PM: You have 8+ years in product management, working cross-functionally with a range of key stakeholders. 

Helpful, but not required

• You’ve worked on a "two-sided" marketplace before (like apps for ride-sharing, food delivery, or classifieds).
• You’ve built products for a wide variety of different types of customers.

Compensation Range: $220,000 - $240,000

OfferUp offers a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. Individual salaries within our ranges are determined through a variety of factors including, but not limited to education, experience, knowledge, skills and geography.  All roles will receive equity in OfferUp as part of their compensation, the amount of equity varying depending on the individual’s level and experience.  

In addition to our compensation package, this role is eligible to enroll in health insurance, healthcare savings and spending accounts, retirement savings benefits (401(k) plan with match), basic and voluntary life insurance, disability benefits, and paid time off for sick leave, family and/or medical leave, vacation, and 12 company holidays. In regard to vacation time, OfferUp has a flexible vacation policy and, in general, full-time exempt employees will be expected to take 3-5 weeks (15-30 days) of pre-planned vacation time per year.  Vacation needs are flexible and will naturally vary from year to year based on individual circumstances and business needs. In regard to sick time, all full-time employees (exempt and non-exempt) will be granted 12 days (96 hours) of sick time per year (pro-rated if they start a date other than January 1). Your recruiter can share more details about specific benefits during the interview process.

About the role:

The OfferUp Consumer team is responsible for the key infrastructure that allows users to efficiently post items on our platform, then search and display those items for potential buyers. Our team leverages various technologies and workflows to provide a meaningful user experience to our customers along with the core foundation and data used by the rest of the application. Ownership includes homefeed, search, and the item catalog. The team manages some of the highest RPS and TPS services within OfferUp. We have barely scratched the surface in terms of what we want to do and the possibilities are endless. 

At many organizations, your role begins and ends with the code. On our team, we’re different. You own a feature from concept to fruition. Your responsibilities will include everything from writing well architected and thoroughly tested code, to rolling out the feature by analyzing metrics. You also get to take ownership beyond your technical area by working with cross-functional team members. 

As a Staff Software Development Engineer on our team, you will grow the team from as both a technical lead and individual contributor. You will set the technical strategy for the team, develop/deploy multiple features with high operational excellence, continuously improve our engineering/operational excellence, and find innovative ways to meet business needs.

Here’s more of what you will get to do:

• Develop a technical strategy for our team
• Develop highly scalable real-time microservices without compromising on reliability, latency, and monitoring.
• Work collaboratively with cross-functional teams to design and implement new features
• Collaborate with OfferUp wide engineering teams to surface common pain points, develop solutions and evangelize best practices
• Identify when to replace and when to rebuild legacy systems
• Support, mentor, and help other engineers in the team
• Participate in a reasonable on-call rotation with the rest of the team
• Collaborate with stakeholders to drive features and assess timelines.
• Help maintain code quality in existing applications.
• Create solutions and/or frameworks that make other team members better and faster
• Become an SME for team ownership areas

You’ll thrive in this role if you have:

• 8+ years professional software engineering experience
• Experience performing data analysis and translating the results into business recommendations
• Experience in working with data-driven applications at scale
• Experience using good judgment to balance engineering improvements with business needs
• Experience developing a short and long term vision for a set of services/features
• Experience guiding and mentoring junior members
• Strong coding skills in Java(required), and any other modern programming language coupled with strong knowledge in object-oriented design and microservices architecture
• Experience with AWS and other Cloud infrastructures
• Hands on experience in designing and building microservices and scalable distributed systems
• Strong knowledge of Data Structures and Object Oriented Design
• Hands on experience with load balancing and handling large data traffic
• An insatiable desire and ability to learn
• You desire a fast moving, continuous flow development environment
• BS or MS in Computer Science or equivalent experience

Helpful, but not required:

• Experience with OpenSearch or Elasticsearch
• Hands on experience with search systems

Compensation Range: $210,000 - $240,000

OfferUp offers a comprehensive compensation and benefits package where you’ll be rewarded based on your performance and recognized for the value you bring to the business. Individual salaries within our ranges are determined through a variety of factors, including but not limited to education, experience, knowledge, skills, and geography. All roles will receive equity in OfferUp as part of their compensation, the amount of equity varying depending on the individual’s level and experience.

Benefits (all US roles): In addition to our compensation package, this role is eligible to enroll in health insurance, healthcare savings and spending accounts, retirement savings benefits (401(k) plan with match), basic and voluntary life insurance, disability benefits, and paid time off for sick leave, family and/or medical leave, vacation, and 12 company holidays. In regard to vacation time, OfferUp has a flexible vacation policy, and, in general, full-time, exempt employees will be expected to take 3-5 weeks (15-30 days) of pre-planned vacation time per year. Vacation needs are flexible and will naturally vary from year to year based on individual circumstances and business needs. In regard to sick time, all full-time employees (exempt and non-exempt) will be granted 12 days (96 hours) of sick time per year (pro-rated if the start date is other than January 1). Your recruiter can share more details about specific benefits during the interview process.