Job Url: https://www.glassdoor.com/Job/united-states-react-jobs-SRCH_IL.0,13_IN1_KO14,19.htm?remoteWorkType=1 Job Description: Headstart 3.1 Senior Software Engineer Apply on employer site United States · $185K (Employer provided) Apply on employer site Is your resume a good match? Use AI to find out how well the skills on your resume fit this job description. Upload your resume Your qualifications for this job Do you have any of these qualifications? Cross-functional collaboration Prototypes Next.js Team development Show more About the company At Headstart our mission is to bring companies into the age of intelligence and automate software development. We are the team behind the coding agent Friday and are building frontier applied AI technologies including agent orchestration, memory, and more. We specialize in solving problems with the latest LLM capabilities that deliver measurable outcomes and breakthrough results for organizations in many different industries. As the technology continues to advance at an unprecedented rate, we provide companies with custom software solutions and a suite of tools to stay ahead of the intelligence curve. About the team We are a lean, high-velocity team that ships breakthrough AI capabilities at startup speed. We work directly with our users, iterate rapidly, and measure success by the real-world impact we create for our clients. We believe that simplicity and engineering fundamentals are more important than ever in an AI driven world. About the role Own and drive the full development lifecycle from ideation through production Prototype rapidly while ensuring long-term reliability, maintainability, and security Build intuitive, accessible full-stack products from frontend interfaces or internal tools that surface model workflows and automate complex processes Architect, build, and maintain scalable APIs and systems that integrate LLMs to power both internal tooling and customer-facing workflows Collaborate across teams to identify solutions to data-intensive problems Mentor and support the growth of other engineers while helping to define and drive the technical roadmap Your background 5+ years of professional software engineering experience Strong interest in leveraging AI in the development lifecycle (bonus if experience) Enjoys a fast-paced and collaborative environment Proven track record owning full-stack systems: backend services (Python, FastAPI, Node.js), relational databases (Postgres/MySQL), and optionally frontend frameworks like React/Next.js Experience designing distributed systems, APIs, data pipelines, or developer productivity infrastructure at scale Bonus if you’ve been a founding engineer or startup early hire, with history building production products from scratch Bonus if you’re NYC based — we have a loft office in Soho and provide lunch and snacks Note: Even if you don't meet all the requirements, we still encourage you to apply. This role offers extensive benefits, a base salary of $185,000 USD plus competitive equity compensation and 401k match. Compensation Range: $185K Show less Base pay The minimum salary is $185K and the max salary is $185K. $185K/yr (Employer provided) United States If an employer includes a salary or salary range on their job, we display it as "Employer Provided". If a job has no salary data, Glassdoor displays a "Glassdoor Estimate" if available. To learn more about "Glassdoor Estimates," see our FAQ page. Conversations @Headstart Kick off the conversation by asking about salaries, interviews or anything else @Headstart. See what other Senior Software Engineer are saying Interview Tips 786K members Salary Negotiations 764K members Explore more Bowls Company overview Size 51 to 200 Employees Founded -- Type School / School District Industry Preschools & Child Care Services Sector Education Revenue $1 to $5 million (USD) Headstart ratings 3.1