Senior Full Stack Software Engineer

About the company

Our client is a fast-growing software company.

The role

Raydar is recruiting for this role on behalf of our client. Own the design and delivery of customer-facing software, working across front-end and API layers with a strong product mindset. Shape how products are built, form clear opinions on solving user needs, and help establish technical and cultural foundations as the team scales.

What you'll do

• Set direction for the products the company builds and carry them from idea to delivery.
• Architect front-end applications and APIs so they work smoothly together.
• Form well-reasoned opinions on the best ways to meet customer needs.
• Collaborate with users and teammates to gather feedback and iterate quickly.
• Take on varied problems as priorities shift, moving between product work and core infrastructure as goals change.
• Mentor teammates and help set engineering practices as the organization grows.

Requirements

What we're looking for

• Professional software engineering experience at a fast-paced startup or a quantitative trading firm, with high ownership of projects.
• Expertise in at least one full stack language, paired with a product mindset and good design sense.
• Ability to adapt quickly and choose the best tool for the job.
• Readiness to lay technical and cultural groundwork during rapid growth.
• Commitment to mentoring others and openness to being mentored.
• Strong track record of tenure, with 2+ years at each company and clear career progression.
• Intensity and enthusiasm for working on complex problems.
• Enthusiasm for working in the office alongside colleagues five days a week.

Bonus points

• Product management skills, including working directly with clients and users to gather feedback.
• Experience with AI and LLM-integrated products.

Benefits

Compensation and benefits

• Base salary: USD 150,000 to 350,000 per year
• Equity
• Flexible time off and paid holidays
• Medical, dental and vision coverage
• Life insurance
• Retirement plan
• Parental leave
• Commuter benefits
• Mental health and wellness support

Location and work model

• New York, NY, United States
• On-site, 5 days per week in office
• Full-time