As a Software Engineer at CharacterQuilt, you'll build AI marketing tools, maintain a TypeScript and React app, and collaborate on design.
CharacterQuilt is building a full-service AI marketing team. We have built one of the most proprietary datasets on earth when it comes to figuring out “what companies care about”, and we sell this data to sales and marketing teams at some of the fastest-moving companies on Earth. Your job is to help us turn this data into actionable interfaces for our customers.
Most startups talk about hiring for "slope over y-intercept". At CharacterQuilt, we pride ourselves on valuing momentum over everything. We believe your growth rate (the slope) isn't constant: you can increase it, and it's our job to convince you that this is the best place to do it.
What you'll do here: (ordered by the amount of time you’ll likely spend)
- Build tools for AI agents using external APIs, LLMs, and custom infrastructure
- Build & maintain the CharacterQuilt application a TypeScript + React app that is the daily driver of our end users and internal team
- Collaborate with our design engineer to ensure a fast, polished, and consistent experience across the entire application (Tailwind + shadcn/ui).
Qualifications:
- B.S. Computer Science or equivalent degree, undergraduate or higher
- Experience with tool use in LLMs [1] [2] and built real products using it
- Experience with Python (FastAPI, LLM APIs)
- Experience with ReactJS
- Experience with Typescript / Javascript
- Bonus: Experience with browser or testing frameworks (Selenium, Playwright)
Similar Jobs
AdTech • Digital Media • Marketing Tech • Software • Automation
As a Staff UI Software Engineer, you will lead the design and architecture of the Basis application, mentoring others and driving large-scale projects while enhancing UI performance and quality.
Top Skills:
AWSDockerJavaJavaScriptNode.jsPostgresRabbitMQReactRedisRubyRuby On RailsSidekiqTypescript
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
The Software Engineer on the Cash App Banking team will design, develop, and deliver new banking experiences, collaborating closely with teams to enhance customer features and performance.
Top Skills:
AWSDynamoDBGrpcGuiceHibernateHTTPJavaJettyJSONJunitKafkaKotlinMySQLOkhttpProtocol Buffers
Healthtech • Software
Design and develop full-stack applications for MedTech sales teams, utilizing data insights, collaborating on solutions, and enhancing product strategies.
Top Skills:
Data Analytics ToolingJavaScriptMongodbNode.jsPythonReactTypescriptUx Analytics
What you need to know about the NYC Tech Scene
As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.
Key Facts About NYC Tech
- Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
- Key Industries: Artificial intelligence, Fintech
- Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
- Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory



