Build backend systems supporting Spellbook's core functionalities and AI workflows. Collaborate closely with Product and Design to optimize user experience.
Responsibilities
Build and scale backend systems that support core product functionality across Spellbook (Reviews, Chat, Library, and more).
Design low-latency, high-reliability search, inference, and orchestration layers for AI features
Build and operate RAG retrieval at scale with production-grade performance optimization and permissions-correct data isolation.
Own core platform concerns for AI: rate limiting, retries, consistency, fallbacks, safe degradation
Partner closely with Product and Design to make good tradeoffs between latency, accuracy, UX, and reliability.
Use modern development workflows, including agent-assisted coding, to accelerate delivery while maintaining rigorous review, testing, and security standards.
Participate in on-call and incident response as needed, and improve feature reliability in the process
Requirements
5+ years of experience building backend systems in production.
Strong fundamentals in backend engineering and distributed systems: APIs, data modeling, concurrency, queues, AI inference
Strong NoSQL (ideally MongoDB) data modeling and performance tuning: schema design/denormalization tradeoffs, indexing strategy, query optimization, and profiling/diagnosing bottlenecks in production.
Ability to convert high-impact problems into clear plans and successful outcomes.
Strong communication skills for technical decision explanations to various audiences.
Self-starter and problem-solver with a desire to help others.
Pragmatic, knowing where scaling is necessary versus unnecessary.
Team player motivated to provide solutions and improve team performance.
Benefits
Access our company-paid group benefits for you and your family, with $1,000 towards mental health support
Disconnect during our holiday closure and take advantage of our generous time off policies throughout the year
Enjoy monthly paid meals, an annual wellness allowance to support your well-being and parental leave top-ups as your family grows
Secure your stake in our success; you’ll receive competitive stock option grants as a pivotal early employee
HR Information Systems Analyst overseeing Workday security configurations, maintaining HR system operations and leading project activities. Supporting various teams to enhance operational outcomes in a collaborative environment.
System Engineer overseeing technical aspects and upgrades for mission critical communication systems. Join a team dedicated to protecting people and places with advanced technologies.
Principal Specialist in Systems Engineering at RTX managing avionics system integration and customer interface. Collaborating with teams to ensure project milestones are achieved on schedule.
AI systems engineer for PerfectServe, enhancing healthcare communication with automated processes and workflows. Design and ship AI - based solutions to improve sales and marketing operations by reducing manual tasks.
MBSE Consultant supporting complex space systems engineering programs in model - based design and satellite operations support. Focusing on system architecture development and early mission phases.
Senior Systems Engineer at Stantec designing and supporting Emerson Ovation DCS programming for water treatment. Leading project delivery and mentoring junior engineers.
Business Systems Analyst II at TELUS developing analytical tools and cost estimation models. Delivering economic insights to support strategic decision - making across the organization.
Product Engineering Systems Analyst linking product engineering and commercial processes at Swegon North America. Focus on scalable digital solutions and CPQ platform optimization in HVAC.
CSOM analyst responsible for analyzing and testing legacy system data in Power BI visualizations. Driving operational efficiency and supporting high - quality healthcare services to veterans.