Senior Software Engineer, Full Stack Web

FiftyThree, New York

Tools for mobile creation and visual thinking

Job Title: Senior Software Engineer, Full Stack Web

Discipline: Software Engineering

Reports to: Software Engineering Manager, Full Stack Web

Location: New York, NY

We are FiftyThree, makers of creativity-boosting tools including the award-winning app, Paper, and companion stylus, Pencil. FiftyThree also happens to be a world-class web shop, building productivity tools for the modern workplace. Our latest app, Paste, is a web-based visual collaboration tool built from the ground up for Slack teams. We are hard at work at our next iteration of Paper and Paste features, and that's where you come in.

You are a talented full-stack engineer looking to join a team of top-notch web developers. You enjoy building rich, dynamic, magical web applications across the entire stack. You have a passion for making data flow cleanly, efficiently, and synchronously across clients. You feel at home architecting complex client-side interactions that push the boundaries of performance. You are excited to ship updates and features to customers frequently.

Don't worry if the criteria below doesn't describe you perfectly. We are a small organization looking for someone who can work well with the team and is excited by our products, technology, and overall direction.


• Execute on a software architecture and development plan to bring products to life
• Propose novel solutions to design and technical challenges
• Lead, manage and resolve technical or design discussions or conflicts
• Communicate effectively with the engineering team and other disciplines, raising issues early and offering solutions
• Develop all software according to coding standards and processes, which you also help define
• Perform reviews of other engineers' code, designs, and architectures
• Mentor junior engineers
• Make use of unit and integration tests wherever possible
• Participate in in-house hackathons and engineering events
• Participate in the interview process for new team members


• BS degree in Computer Science or related field, or equivalent practical experience
• A solid foundation in data structures, algorithms, and software design
• 5+ years of relevant work experience
• Experienced in defining architecture and implementing features of large scale modern web applications
• Working knowledge of the full web technology stack (e.g., HTTP/HTML/CSS, cookies, asset loading, caching, REST, etc.)
• Expertise in JavaScript and modern web development tools including Node, Express, Webpack, React, Redux, TypeScript
• Experience with cloud infrastructure such as AWS/EC2/S3, Docker, MySQL/PostgreSQL
• Proficient with Git or similar revision control systems
• Able to formulate a development plan for a given feature set, estimate its tasks, and execute on those tasks in an efficient manner
• Able to work effectively in a cross-disciplinary environment, particularly with designers


• Medical, Dental, Vision, 401(K)
• Life Insurance
• Commuter Benefits
• Catered in-office lunches twice weekly and fully stocked pantry
• Flexible Time Off Policy
• Paid Parental Leave
• Employee Equity Program

We are an equal opportunity employer and strongly value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

About FiftyThree

FiftyThree builds tools that make ideas better. They are the makers of Paper, the fast and beautiful productivity app for getting ideas down, and Pencil, the award-winning stylus, and Paste the fastest way for teams to gather, organize, and share their ideas. Internationally recognized for design excellence and innovation, they’ve received awards from Apple, IDSA, The Edison Awards, and IxDA. 

Want to learn more about FiftyThree? Visit FiftyThree's website.