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Founding Full Stack Software Engineer Jobs in Islip, NY

Sandstone

Full-Stack Software Engineer

New York, NY · On-site

$145K - $230K/yr

We are predominantly looking for full-stack software engineers, but our needs are constantly evolving, and we will consider front-end or infrastructure engineers if they are truly exemplary. What You ...

Constrafor

Full Stack Software Engineer

New York, NY · On-site

$180K - $205K/yr

We're seeking an exceptional Full Stack Engineer to join our dynamic team and lead the development ... Lead the design and development of high-quality software across the full stack, ensuring ...

Constrafor

Full Stack Software Engineer

New York, NY · On-site

$180K - $205K/yr

We're seeking an exceptional Full Stack Engineer to join our dynamic team and lead the development ... Lead the design and development of high-quality software across the full stack, ensuring ...

The Cypress Group

Full Stack Developer

New York, NY · Hybrid

$110K - $150K/yr

Software Engineer - Full Stack (Python/web framework) About the Opportunity A leading global financial technology and market infrastructure company is seeking a Full Stack Software Engineer to join ...

Thesis

Product Engineer, Full-Stack

New York, NY · On-site

About the role We are looking for a product-minded Full-Stack Software Engineer to help design, build, and scale Thesis's core platform. This is a broad-scope, hands-on engineering role for a ...

Thesis

Product Engineer, Full-Stack

New York, NY

About the role We are looking for a product-minded Full-Stack Software Engineer to help design, build, and scale Thesis's core platform. This is a broad-scope, hands-on engineering role for a ...

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All JobsFounding Full Stack Software Engineer JobsFounding Full Stack Software Engineer Jobs in Islip, NY

Founding Full Stack Software Engineer information

See Islip, NY salary details

$46.1K

$139.7K

$197.4K

How much do founding full stack software engineer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for founding full stack software engineer in Islip, NY is $139,680.00, according to ZipRecruiter salary data. Most workers in this role earn between $115,000.00 and $163,800.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a founding full stack software engineer?

To thrive as a Founding Full Stack Software Engineer, you need deep expertise in both front-end and back-end development, strong problem-solving skills, and experience building scalable web applications, usually demonstrated by a degree in computer science or equivalent experience. Mastery of tools and frameworks such as JavaScript, React, Node.js, cloud platforms (AWS, GCP), and version control systems like Git is typically required. Exceptional communication, adaptability, and entrepreneurial mindset are crucial for collaborating in a dynamic startup environment and driving product vision. These skills are vital for rapidly iterating, shipping robust products, and establishing a strong technical foundation for a growing company.

What is a founding full stack software engineer?

Founding Full Stack Software Engineers are technical professionals who join a startup at its earliest stages to help build and shape the company's core products and technology infrastructure. They work across both the front-end and back-end of applications and play a key role in making architectural decisions, setting up development processes, and establishing the technical foundation. As 'founding' team members, they often have greater responsibilities, including working closely with company founders, contributing to product strategy, and sometimes receiving equity or a stake in the company.

What unique challenges might I face as a founding full stack software engineer in an early-stage startup?

As a Founding Full Stack Software Engineer, you’ll often juggle multiple responsibilities, from designing core architecture to deploying code and setting up development workflows. Since resources are limited and the product vision can evolve quickly, adaptability and strong communication with founders and other early team members are key. You may also be deeply involved in decisions beyond pure engineering, such as hiring, product strategy, and even customer support. This environment can be both demanding and highly rewarding, offering accelerated learning and significant influence over the company’s technical direction.
What cities near Islip, NY are hiring for Founding Full Stack Software Engineer jobs? Cities near Islip, NY with the most Founding Full Stack Software Engineer job openings:
Founding Full Stack Software Engineer jobs near you

Full Stack Software Engineer (Remote)

Unframe

New York, NY • Remote

Other

Re-posted 15 days ago

Job description

About Unframe

Unframe is an AI-first startup helping the world's largest enterprises bring LLM-powered applications to life in days - not months. We combine the speed of a product company with the flexibility of a consultancy, helping customers move from idea to deployed AI systems faster than anyone else in the market.

With over $100M in TCV secured within 12 months, and a new $50M Series B led by Highland Europe, Unframe is rapidly scaling globally alongside Fortune 500 customers, backed by Bessemer, Craft, and TLV.

About the role:

As a Full Stack Software Engineer, you'll work across the stack to design, implement, and ship high-quality workflows that solve real problems for real users. You'll collaborate directly with product and enterprise customers, see your code in production within days, and be part of a team that values ownership and thoughtful execution.

What you'll do:

  • Develop and deliver full-stack AI-powered applications on top of Unframe's platform.
  • Work closely with customers and internal teams to tailor solutions.
  • Extend the platform and UI/UX layer as needed.
  • Collaborate with platform and research teams to integrate AI capabilities into production use.
  • Write clean, tested, and maintainable code.

What we are looking for:

  • 5 + years of hands-on software-engineering experience.
  • Proven record of shipping real user-facing products end-to-end.
  • Proficiency with JavaScript, Node.js, Vue\React and PostgreSQL.
  • Strong communication skills and a product mindset.
  • Ownership mentality - comfortable taking a feature from idea to production.

Nice to Have:

  • Experience working with AI or LLM-based applications.
  • Experience working with B2B or enterprise customers.

Why join us?

  • Real ownership from day one. Drive decisions, shape ideas and make them work.
  • Your fastest learning years. Build alongside founders and VPs in a space that moves weekly.
  • You'll have the opportunity to write and build what comes next.

Apply