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Senior Software Engineer Startup Jobs in New York

Ellipsis Labs, Inc

Senior Software Engineer

New York, NY · On-site

$170K - $250K/yr

Ellipsis Labs is a profitable, venture-backed New York-based startup building sustainable and ... The Opportunity Ellipsis Labs is seeking a Senior Software Engineer to join our team. In this role ...

EliseAI

Senior Software Engineer

Manhattan, NY · On-site

$134K - $177K/yr

As a Senior Software Engineer, you will build impactful software solutions, collaborating with a ... Required : • Startup mindset with a strong sense of ownership, urgency, and pragmatism in ...

Pryzm

Senior Software Engineer

Manhattan, NY · On-site

$130 - $190/hr

The Role I'm hiring a Software Engineering Lead to help me (the CTO) improve how federal tech gets ... Background as a Tech Lead, Senior/Staff Engineer, early engineer at a high‑growth startup, or ...

Mosaic.tech

Senior Software Engineer

Manhattan, NY · On-site

$140 - $190/hr

The Role I'm hiring a Software Engineering Lead to help me (the CTO) improve how federal tech gets ... Background as a Tech Lead, Senior/Staff Engineer, early engineer at a high‑growth startup, or ...

CM Search

Senior Software Engineer

New York, NY · On-site

$134K - $176K/yr

... hiring a senior software engineer to be a technical anchor on the New York team -- shaping ... Startup experience at a product-focused, high-expectation company * >>>>> Willingness to work in ...

Accord Technologies Inc.

Sr Software Engineer

New York, NY · On-site

$134K - $176K/yr

Title: Sr Software Engineer Location: New York city, NY Duration: 6 months Position type: Contract * Software engineering - senior software engineer, they are building out a new vulnerability ...

Consortia Group

Senior Software Engineer

Manhattan, NY · On-site

$160 - $220/hr

Senior Software Engineer | New York, NYC Join a leading consultancy in financial services technology as a Senior Software Engineer based in New York City. This hybrid role is an opportunity to ...

Socket.dev

Senior Software Engineer

Manhattan, NY · On-site

$140 - $190/hr

About the Role Tabs is seeking a senior software engineer to join our team and work closely with ... As a member of our early-stage startup, they'll have the opportunity to shape the direction of the ...

Breaking Ground

Senior Software Engineer

New York, NY · On-site

$134K - $176K/yr

Senior Software Engineer Reporting to the Assistant Vice President, Software Engineering, the Senior Software Engineer builds software to optimize workflows and increase system accuracy. They create ...

NxT Level

Senior Software Engineer

West New York, NJ

$132K - $174K/yr

Senior Full-Stack Software Engineer Location: New York City Work Style: Hybrid Employment Type ... Prior startup experience as a founder, early employee, or high-ownership builder * Experience in ...

New

cxb

Senior Software Engineer

Manhattan, NY · On-site

$134K - $177K/yr

Senior Software Engineer Reporting to the Assistant Vice President, Software Engineering, the Senior Software Engineer builds software to optimize workflows and increase system accuracy. They create ...

Clera

Senior Software Engineer, Platform

New York, NY · On-site

$200K - $350K/yr

About the Role Join the platform team at a fast-growing, venture-backed AI data analytics startup ... As a Senior Software Engineer, Platform , you'll help shape the data foundation that powers AI ...

Revin AI

Senior Software Engineer

New York, NY · On-site

$200K - $275K/yr

Senior Software Engineer Location: New York, NY (on-site, 5 days a week) Compensation: $200,000 ... production software at a startup, high-velocity SaaS, or AI-driven company - Production LLM ...

De Circle

Clerq - Senior Software Engineer

New York, NY · On-site

$134K - $176K/yr

Clerq is a Series A financial technology startup based in New York City. The company's next ... We are looking for a Senior Software Engineer to join our early engineering team. The ideal ...

NxT Level

Senior Software Engineer

West New York, NJ · On-site

$132K - $174K/yr

Senior Full-Stack Software Engineer Location: New York City Work Style: Hybrid Employment Type ... Prior startup experience as a founder, early employee, or high-ownership builder * Experience in ...

New

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All JobsSoftware Engineer Startup JobsSenior Software Engineer Startup JobsSenior Software Engineer Startup Jobs in New York

Senior Software Engineer Startup information

See New York salary details

$82.6K

$156.8K

$210.1K

How much do senior software engineer startup jobs pay per year?

As of Aug 9, 2026, the average yearly pay for senior software engineer startup in New York is $156,766.00, according to ZipRecruiter salary data. Most workers in this role earn between $134,000.00 and $176,700.00 per year, depending on experience, location, and employer.

What are some unique challenges senior software engineers face when working at a startup compared to a larger company?

Senior Software Engineers at startups often navigate a fast-paced, rapidly changing environment where priorities can shift quickly. Unlike at larger organizations with established processes and specialized teams, startup engineers may wear multiple hats, handling everything from architecture decisions to hands-on coding and even DevOps tasks. This role typically requires a high degree of autonomy and the ability to make impactful technical decisions with limited resources. The collaborative nature means frequent interaction with product managers, designers, and often even company leadership, creating opportunities for broad influence but also demanding strong communication and adaptability.

What are the key skills and qualifications needed to thrive as a senior software engineer at a startup, and why are they important?

To thrive as a Senior Software Engineer at a startup, you need advanced programming abilities, architectural design experience, and a solid understanding of software development lifecycles, typically backed by a bachelor's degree in computer science or a related field. Familiarity with modern frameworks, cloud platforms (like AWS or Azure), version control systems (such as Git), and agile methodologies is essential, with certifications in relevant technologies being advantageous. Strong problem-solving, adaptability, and effective communication skills help you navigate the dynamic startup environment and mentor junior team members. These skills are crucial to rapidly building scalable solutions, driving innovation, and supporting business growth in a fast-paced and often ambiguous setting.

What is the difference between Senior Software Engineer Startup vs Software Engineer Startup?

AspectSenior Software Engineer StartupSoftware Engineer Startup
Required CredentialsBachelor's/Master's in CS or related field, 3+ years experienceBachelor's in CS or related field, 0-2 years experience
Work EnvironmentFast-paced startup, leadership responsibilities, mentorshipCollaborative team, learning-focused, entry-level to mid-level tasks
Employer & Industry UsageTech startups, scale-ups, innovative projectsEarly-stage startups, product development teams
Common Search & ComparisonHigher responsibility, technical expertise, leadershipLearning opportunities, foundational skills, growth potential

The main difference between a Senior Software Engineer Startup and a Software Engineer Startup lies in experience, responsibilities, and leadership. Senior Software Engineers typically have more experience, take on mentorship roles, and handle complex projects, while Software Engineers are often in entry to mid-level positions focused on skill development and supporting team tasks.

What does a senior software engineer do at a startup?

A Senior Software Engineer at a startup is responsible for designing, developing, and maintaining the core software products or services. They often take on a broad range of tasks, including coding, code reviews, system architecture, and mentoring junior team members. In a startup environment, they may also contribute to product decisions, help set technical direction, and quickly adapt to changing priorities. Their role is critical in building scalable, reliable solutions while fostering innovation and collaboration within a small, fast-paced team.
What are the most commonly searched types of Software Engineer Startup jobs in New York? The most popular types of Software Engineer Startup jobs in New York are:
What are popular job titles related to Senior Software Engineer Startup jobs in New York? For Senior Software Engineer Startup jobs in New York, the most frequently searched job titles are:
What job categories do people searching Senior Software Engineer Startup jobs in New York look for? The top searched job categories for Senior Software Engineer Startup jobs in New York are:
What cities in New York are hiring for Senior Software Engineer Startup jobs? Cities in New York with the most Senior Software Engineer Startup job openings:
Senior Software Engineer Startup jobs near you
Infographic showing various Senior Software Engineer Startup job openings in New York as of August 2026, with employment types broken down into 100% Full Time. Highlights an 57% In-person, and 43% Remote job distribution, with an average salary of $156,766 per year, or $75.4 per hour.

Senior Software Engineer

Ellipsis Labs, Inc

New York, NY • On-site

$170K - $250K/yr

Full-time

Re-posted 24 days ago

Job description

Ellipsis Labs is a profitable, venture-backed New York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our long-term goal is to build a better financial system.
Our flagship product, Phoenix Perpetuals, brings professional-grade perpetual futures to Solana. Building on our experience developing efficient markets, Ellipsis Labs also operates SolFi, a proprietary automated market maker that provides efficient liquidity for key trading pairs. Our foundational product, Phoenix Legacy, is a limit order book on the Solana blockchain that established our expertise in operating high-performance markets. Combined, these products have facilitated over $285B in trading volume across Solana markets.
The Opportunity
Ellipsis Labs is seeking a Senior Software Engineer to join our team. In this role, you will:
  • Contribute to critical software systems at all parts of the stack
  • Design, develop, and deploy programs on the Solana blockchain
  • Maintain a high bar of security, correctness, and thoughtfulness around the code
  • Write high-quality, maintainable, well-tested code with thorough documentation
Qualifications
Required
  • Experience building software systems (preferably in Rust, C++, C, or Golang), with high-quality and well-documented production code
  • A demonstrated track record of high agency, willingness to dive into unfamiliar technical and non-technical areas, and a team-first attitude
  • Passion for decentralized finance
Preferred
  • Bachelor's degree in Computer Science or related technical field or equivalent practical experience
  • Experience working with blockchain technology, preferably Solana
  • Experience working with Rust

Apply