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Web Development Startup Jobs in New York (NOW HIRING)

Uncountable

Platform Engineer - Generative AI

New York, NY · On-site

$120K - $160K/yr

Experience shipping software incorporating Generative AI to users (e.g. started an LLM startup or shipped a side project with real usage) * Familiarity with fullstack web development Our Current ...

exacare ai

Senior Software Engineer (Front-end)

New York, NY · On-site

$134K - $176K/yr

... startup environment * 2+ years of responsive web development across browsers, tablets, and mobile devices * 2+ years of experience working with cloud infrastructure such as AWS or GCP * Strong ...

Hailify

VP, Engineering

Manhattan, NY · On-site

$198K - $255K/yr

Discover and implement new technologies, emerging web development models, and major trends within ... An entrepreneurial and self-driven personality - you thrive in startup environments, and show ...

Counsel

Software Engineer (Fullstack)

New York, NY · On-site

$185K - $225K/yr

Our engineering work spans full-stack web development, data infrastructure, mobile development, and ... startup environment * Thrives working alongside exceptional teammates and draws energy from fast ...

Tabs

Software Engineer, Frontend

New York, NY · On-site

$150K - $200K/yr

As a member of our early-stage startup, you'll have the opportunity to shape the direction of the ... Experience with TypeScript, JavaScript, or a similar web development language * Strong desire for ...

Tabs

Software Engineer, Frontend

New York, NY · On-site

$150K - $200K/yr

As a member of our early-stage startup, you'll have the opportunity to shape the direction of the ... Experience with TypeScript, JavaScript, or a similar web development language * Strong desire for ...

Anagh Technologies, Inc.

Senior React Developer

Newark, NJ · On-site

$120K - $157K/yr

Senior React Engineer with ReactFlow Senior React Engineer will help to iteratively build a new Web App for an industry leading startup. Newark NJ Pittsburgh, PA Responsibilities * Work with Dev Team ...

Alloy

Senior Solutions Architect

New York, NY · Hybrid

$150K - $190K/yr

... web development (Javascript, HTML/CSS, frontend frameworks - React) * Able to travel occasionally (approximately once per quarter) for client on-sites. * Previous experience at a Fintech Startup or ...

Counsel

Senior Software Engineer (Fullstack)

New York, NY · On-site +1

$185K - $225K/yr

Our engineering work spans full-stack web development, data infrastructure, mobile development, and ... Hands-on experience building consumer-facing products from the ground up in a high-growth startup ...

Alloy

Senior Solutions Architect

New York, NY · On-site

$150K - $190K/yr

... web development (Javascript, HTML/CSS, frontend frameworks - React) * Able to travel occasionally (approximately once per quarter) for client on-sites. * Previous experience at a Fintech Startup or ...

Fresh Digital Group

Developer Intern

Manhattan, NY · On-site

$21 - $27.75/hr

... Home) and web development within a business setting, especially in a fast-paced, executing ... Company startup experience preferred * High level of professionalism required * Strong ...

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Web Development Startup information

What are some common challenges faced by web developers working in a startup environment?

Web developers in startups often encounter fast-paced work environments where priorities can shift quickly based on evolving business needs. They may be expected to take on a wide range of responsibilities, from front-end UI implementation to back-end integrations, and sometimes even DevOps tasks. Resource constraints and tight deadlines are common, requiring adaptability, strong problem-solving skills, and effective communication with cross-functional teams such as designers and product managers. However, these challenges also offer valuable opportunities for rapid skill growth and increased ownership over projects.

What is a web development startup?

A web development startup is a new business that focuses on creating and maintaining websites or web applications for clients or users. These startups typically offer services such as designing, coding, and optimizing websites, as well as developing custom web-based solutions. They often use modern technologies and frameworks to deliver innovative, scalable, and user-friendly products. Web development startups can range from small teams to larger companies, and they may work with businesses of all sizes to help establish or improve their online presence.

What are the key skills and qualifications needed to thrive in a web development startup?

To thrive in a web development startup, you need strong programming skills in languages like JavaScript, HTML, and CSS, along with a solid understanding of responsive design and web frameworks. Familiarity with tools such as Git, cloud platforms (e.g., AWS), and popular frameworks like React or Node.js is typically required. Creativity, problem-solving, adaptability, and teamwork are crucial soft skills that help navigate the fast-paced and constantly evolving startup environment. These skills and qualities are essential for building innovative solutions, collaborating effectively, and driving the success of the startup.
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Web Development Startup jobs near you
Infographic showing various Web Development Startup job openings in New York as of August 2026, with employment types broken down into 1% As Needed, 80% Full Time, 16% Part Time, 1% Temporary, and 2% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution.

Platform Engineer - Generative AI

Uncountable

New York, NY • On-site

$120K - $160K/yr

Full-time

Medical, Dental, Retirement

Re-posted 27 days ago

Job description

Thank you for your interest in Uncountable Engineering!
Description
Uncountable is seeking driven software engineers with a focus on Generative AI deployment in software.
Uncountable's software platform is used by scientists in leading scientific R&D organizations to structure and analyze experimental data. Uncountable's users are solving critical problems in materials science, chemistry, biotech, and other scientific fields, and our goal is to help them solve those problems faster.
Your role will be to bring the full power of ongoing advances in LLMs to bear on real-world problems and friction faced by scientists every day. You'll be building AI-powered search and visualization tools, next-generation UX that use multimodal LLMs as the UI, intelligent research assistants, and more. This is a unique opportunity to join the front-line effort to accelerate scientific progress using LLMs and generative AI.
Primary Responsibility
You will be responsible for:
- Building specific LLM powered features end-to-end, including both LLM-specific tasks (prompting, optimizing latency, tuning/testing behavior) and traditional fullstack development tasks (coding frontends/backends, designing APIs and databases)
- Developing a great in-house LLM stack to serve the evolving needs of our product (API integration, testing, observability, caching, infrastructure for fine-tuning and inference, etc)
Uncountable has a strong culture of continuous deployment and fast iteration cycles. You'll expect to ship your work early and often to Uncountable's users and iterate based on their feedback.
Many of the features you build will represent new and unprecedented ways to use software, so you'll wear various hats as a designer, researcher, engineer, product manager, and whatever else is needed to create an amazing product. This is a great role for someone who is looking to grow their skills and perspective quickly, or who wants to found their own company in the future.
Salary Range: $120K-$160K + Equity
Requirements
  • 2 years of development experience
  • Strong interest in Generative AI
  • Solid computer science and software engineering fundamentals

Preferred Qualifications
  • B.S. in computer science
  • Experience shipping software incorporating Generative AI to users (e.g. started an LLM startup or shipped a side project with real usage)
  • Familiarity with fullstack web development

Our Current Stack
  • Backend: Flask (Python), Postgres
  • Frontend: React (Typescript), Redux, Sass

Benefits
  • Competitive Salary and Equity
  • Health and Dental Insurance
  • 401K with Employer Contribution

What's next? Learn more about Interviewing at Uncountable
Learn more about our engineering team: Check out our blog

Apply