Senior Backend Engineer II, Data & Agentic Context Platforms

fetch | Advertising technology

15d 16h ago

Remote In-Country

Full Time

United States of America

$190.4k - $224k USD/yr

What we’re building and why we’re building it.

Fetch helps people live rewarded every day, with a vision to become the rewards destination for everyone. We turn everyday activities into meaningful rewards, whether it’s grocery shopping, grabbing a quick meal, or playing a favorite mobile game. To date, we’ve awarded more than $1 billion in Fetch Points to our users.

Each day, more than 13 million receipts are submitted on Fetch, providing visibility into over $212 billion in gross merchandise value. This creates the largest retail-agnostic, SKU-level view of household spending, powering Fetch as an outcomes-based advertising platform that helps brands acquire and retain lifelong consumers.

The Fetch app is available on the App Store and Google Play, with more than 6 million five-star reviews from a highly engaged and loyal user base.

It’s not just our users who believe in Fetch: with investments from Softbank, ICONIQ, DST, Greycroft, and partnerships ranging from challenger brands to Fortune 500 companies, Fetch is reshaping how brands and consumers connect in the marketplace. When you work at Fetch, you play a vital role in a platform that drives brand loyalty and creates lifelong consumers with the power of Fetch points. User and partner success are at the heart of everything we do, and we extend that same commitment to our employees.

At Fetch, we value curiosity, adaptability, and the confidence to explore new tools, especially AI, to drive smarter, faster work. You don’t need to be an expert, but you should be ready to learn quickly and think critically. We welcome learners who move fast, challenge the status quo, and shape what’s next, with us. Ranked as one of America’s Best Startup Employers by Forbes for two years in a row, Fetch fosters a people-first culture rooted in trust, accountability, and innovation. We encourage our employees to challenge ideas, think bigger, and always bring the fun to Fetch.

Meet Fetch Engineering

At Fetch, engineering is driven by curiosity, ownership, and a bias toward action. We operate in complex problem spaces where the right answer is not always clear, and success depends on adaptability, critical thinking, and informed decision-making. Our engineers are comfortable navigating ambiguity, understanding tradeoffs, gathering context, and turning uncertainty into progress while maintaining high technical standards.

Engineers at Fetch take pride in building reliable, scalable systems that serve millions of users. You will contribute directly to the codebase, collaborate closely with cross-functional partners, and help shape best practices that elevate the quality of our work. We foster a culture of mentorship and collaboration, where engineers grow by learning from one another and holding a high bar for quality, reliability, and impact.

About the Role:

Fetch is looking for a Senior Backend Engineer II to build the data and context foundation for our agentic platform. You’ll design and operate the backend services, APIs, data pipelines, and storage systems that make trusted organizational and user context available to agents and product experiences with the appropriate latency, quality, security, and cost.

Working closely with agent, machine learning, data, security, and product teams, you’ll own systems from ingestion and modeling through retrieval and serving. You’ll create reusable platform capabilities that account for context semantics, provenance, freshness, permissions, evaluation, and dependable retrieval.

Role Responsibilities:

Design, build, and operate scalable backend services and APIs that ingest, transform, retrieve, and serve context to agents and product applications.
Own batch and real-time data flows, including event ingestion, transformation, indexing, storage, and low-latency serving.
Develop reusable capabilities for agent context, including connectors, context assembly, memory and state interfaces, metadata and provenance, authorization-aware retrieval, and evaluation signals.
Define data models, schemas, and contracts, and implement validation, lineage, freshness checks, and observability as upstream systems evolve.
Select storage and retrieval patterns across operational databases, data warehouses and lakes, search systems, caches, and graph or vector technologies based on access patterns.
Establish SLIs and SLOs, monitor latency and correctness, plan capacity, manage costs, and design graceful failure and recovery paths.
Translate ambiguous context needs into durable platform abstractions and lead technical designs through implementation, rollout, measurement, and adoption.
Improve engineering velocity through well-designed SDKs, tools, documentation, deployment patterns, and paved paths.
Mentor engineers and raise the bar for backend architecture, data quality, operational excellence, and the responsible use of context.

Minimum Requirements:

8+ years of professional software engineering experience, including ownership of production backend or distributed systems at meaningful scale.
Strong programming skills in at least one modern language, such as Go, Python, Java, or Rust, along with proficiency in SQL and data modeling.
Experience designing and operating APIs, asynchronous workflows, and data-intensive systems with demanding reliability, scalability, latency, and data-quality requirements.
Experience with modern data infrastructure, including streaming or messaging systems, batch processing, operational databases, and cloud-based data platforms.
Sound technical judgment regarding data consistency, schema evolution, privacy and access control, failure handling, performance, and cost.
Experience with AWS, Infrastructure as Code tools such as Terraform or CloudFormation, CI/CD, and modern software delivery practices.
Ability to lead ambiguous technical problems from architecture through adoption, delivering incrementally and improving systems based on evidence.
Strong communication and collaboration skills, including the ability to present technical designs, constructively challenge decisions, align cross-functional partners, and mentor other engineers.
A bachelor’s or advanced degree in Computer Science, Engineering, Data Science, Mathematics, or a related field—or equivalent practical experience.

Preferred Requirements:

Experience building production agentic or LLM-powered platforms, including context assembly, memory, retrieval, or evaluation systems.
Experience with vector databases, graph technologies, search platforms, or hybrid retrieval approaches.
Experience developing internal platforms, SDKs, or paved paths adopted by multiple engineering teams.
Familiarity with authorization-aware retrieval and the governance of sensitive data, including provenance, lineage, freshness, and privacy.

This is a full-time role that can be held from one of our US offices or remotely in the United States.

Compensation: At Fetch, we offer competitive compensation packages including base, equity, and benefits to the exceptional folks we hire. The base salary range for this position is $190,409 - $224,011. Discover our benefits and how our employees live rewarded at .

At Fetch, we'll give you the tools to feel healthy, happy and secure through:

Equity: We offer full-time employees equity in Fetch, so that everyone can benefit from Fetch’s growth.
401k Match: Dollar-for-dollar match up to 4%.
Benefits for humans and pets: We offer comprehensive medical, dental and vision plans for everyone including your pets.
Continuing Education: Fetch provides ten thousand per year in education reimbursement.
Employee Resource Groups: Take part in employee-led groups that are centered around fostering a diverse and inclusive workplace through events, dialogue and advocacy. The ERGs participate in our Inclusion Council with members of executive leadership.
Paid Time Off: On top of our flexible PTO, Fetch observes 9 paid holidays, as well as our year-end week-long break.
Robust Leave Policies: 20 weeks of paid parental leave for primary caregivers, 14 weeks for secondary caregivers, and a flexible return to work schedule.
Calvin Care Cash: Employees who are welcoming new family members will also receive a one time $2,000 incentive to assist employees with covering the cost of childcare, clothing, diapers and much more!
Flexible Work Environment: Collaborate with your team in one of our stunning offices, or you can work fully remotely from anywhere in the US. We’ll ensure you are equally equipped with the hardware and software you need to get your job done in the comfort of your home. (applicable for most roles)

Fetch is an equal opportunity employer that embraces diversity, inclusion, and respect for all individuals. We do not discriminate on the basis of race, color, religion, gender, gender identity or expression, sexual orientation, age, national origin, marital status, veteran status, disability, or any other characteristic protected by applicable law. Our commitment to inclusivity ensures that everyone is treated with dignity and has the opportunity to succeed based on their talent, skills, and potential.

Required Skills

golangpythonjavarustsqlawsterraform

Required Languages

🇬🇧 English