Senior Software Engineer - Generative Chat Applications

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

Every month, millions of people use America’s Rewards App, earning rewards for buying brands they love, and a whole lot more. Whether shopping in the grocery aisle, grabbing a bite at the drive-through or playing a favorite mobile game, Fetch empowers consumers to live rewarded throughout their day. To date, we’ve delivered more than $1 billion in rewards and earned more than 5 million five-star reviews from happy users.

It’s not just our users who believe in Fetch: with investments from SoftBank, Univision, and Hamilton Lane, 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.

_Fetch is an equal employment opportunity employer.

_Meet Fetch Engineering

At Fetch, our engineering philosophy emphasizes innovation, adaptability, and informed decision-making. Our engineers thrive in complex environments, making decisions based on critical thinking and data, even in uncertain situations. We value proactive problem-solving and focus on driving impactful results while maintaining high technical standards. You will work alongside talented engineers who are dedicated to pushing the boundaries of technology and encouraging each other to excel. We understand that Fetch may not be the right fit for everyone, but if you're passionate about solving challenging problems and navigating intricate systems, Fetch could be a great place for you.

About The Role

Fetch is building the future of personalized consumer experiences. We’re looking for a Senior Software Engineer, Generative Chat Applications to drive the technical strategy and implementation of LLM-powered conversational systems across Fetch. You’ll play a central role in advancing our flagship generative AI product, FAST, while collaborating with engineers working on chat and interactive agent experiences throughout the company.

This is a high-impact role focused on building production-grade, low-latency chat systems that deliver fast, engaging, and reliable experiences at scale. You’ll partner closely with product, data, and design teams to bring innovative conversational features to life, transforming prototypes into systems used by millions of Fetch users.

Role Responsibilities

• Drive the technical strategy, architecture, and implementation of generative chat applications across Fetch.

• Design and develop new features for FAST, Fetch’s flagship generative AI product.

• Build evaluation frameworks that measure and improve conversational quality, latency, and overall user experience.

• Scale and extend LLM-driven systems for FAST, FetchGPT, and Analyst Agents to handle consumer-scale usage.

• Evolve prototypes into production-grade systems with robust observability, evaluation, and safety practices.

• Mentor engineers working on chat experiences, raising the bar for design, integration, and responsible AI usage.

• Collaborate with cross-functional partners to deliver chat-first, user-adaptive experiences.

• Use AI tools to accelerate development, including:

• Validating product ideas in LLM sandboxes (ChatGPT, Claude, etc.)

• Leveraging AI for code generation, prototyping, and system diagramming

• Exploring LLMs to enhance analyst workflows and interactive insights within FAST and FetchGPT

Minimum Requirements

• 5+ years of professional software engineering experience, including 1 year focused on generative chat applications.
• Proven experience building or scaling production systems leveraging LLMs (retrieval-augmented generation, fine-tuning, or agent frameworks).
• Strong software engineering background (distributed systems, APIs, data pipelines, or backend services).
• Experience building LLM-based chat interfaces and implementing evaluation systems for conversational quality.
• Experience optimizing conversational applications for low latency and high reliability.
• Demonstrated ability to mentor engineers, provide clear design guidance, and break complex problems into actionable tasks.
• Strong communication and collaboration skills, with experience partnering cross-functionally to deliver impactful features.
• Comfortable navigating high-ambiguity environments, driving clarity and measurable outcomes in fast-moving settings.
• Familiarity with LLM agent frameworks (LangGraph, OpenAI Agents SDK, Semantic Kernel, etc.) and orchestration patterns.

Preferred Requirements

• Experience with classical NLP techniques such as sentiment analysis, translation, or token classification.
• Experience fine-tuning LLMs for domain-specific applications.
• Experience designing and maintaining large-scale Python codebases and contributing to shared technical standards.
• Knowledge of retrieval systems, embeddings, and evaluation frameworks for conversational AI.
• Exposure to multi-modal LLM applications (text + images, structured data, etc.).
• Proven ability to influence peers through technical leadership, raise engineering quality, and foster a culture of learning and mentorship.
• Prior experience bridging application engineering with AI/ML model integration and serving.

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

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

• Equity: We offer 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, including Juneteenth and Indigenous People’s Day, 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 in Madison, Birmingham, or Chicago. 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.

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.

Fetch also provides reasonable accommodations to qualified individuals with disabilities or those with sincerely held religious beliefs, as required by law. If you need assistance with the application process or require an accommodation, please contact us at accommodations@fetch.com.

Learn more: Fetch Recruitment Scam Warning.