We're looking for a skilled Senior Full-Stack Software Engineer to join our on-site engineering team and help build the next generation of workforce engagement and incentive platforms.
Jolly sits at the intersection of operational data and real-world incentives, transforming signals from systems like HRIS, payroll, and various work platforms into meaningful engagement for frontline workers.
We're looking for someone who embodies extreme ownership – someone who doesn't just write code that meets the acceptance criteria and moves on, but obsesses over the end-to-end customer experience. They proactively identify edge cases, sweat the details, and partner closely with product, design, and data to ship thoughtful and reliable features. We're looking for someone who thrives in ambiguity, loves startups, and can collaborate well in a fast-paced environment.
You'll build and own end-to-end systems across our frontend and backend and play a key role in shaping how our engineering team designs, ships, and operates software
What You'll Do
Build and maintain full-stack applications using TypeScript, NestJS, Next.js, and React Native
Design and manage relational database schemas using PostgreSQL and ORMs such as Prisma
Build and evolve data ingestion and transformation pipelines that move operational data from external customer systems into Jolly
Collaborate in Agile workflows including sprint planning, daily standups, and retrospectives
Write clean, testable code and contribute to CI/CD and deployment pipelines
Work closely with product and design to deliver features from concept to launch
Who You Are
A senior-level software engineer with experience owning production enterprise B2B SaaS or consumer apps
You take personal responsibility for product quality – if there is a bug, you're eager to understand why and prevent it from happening again with a high sense of urgency
Naturally collaborative – you surface opinions early, explain tradeoffs, and are comfortable operating in high-ambiguity environments
Deep familiarity with Agile development practices
Excellent problem-solving and communication skills
Must-Have Experience
6+ years of professional software engineering experience
Extensive experience with TypeScript both on the frontend and backend
Strong proficiency in SQL and PostgreSQL
Exposure to AWS, CI/CD pipelines, and tools like Terraform
Familiarity with monitoring tools (e.g. Datadog) and testing frameworks.
Startup 0→1 experience, or multiple 1→10 iterations
Experience using AI tooling in day-to-day development
Top Skills
What We Do
Built by data scientists, Jolly taps performance-tied incentives to improve employee utilization, compliance, referrals, and loyalty.
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