Principal Full Stack Engineer Boston, Massachusetts **Hybrid** Contract $170/hr - $210/hr Our client is an innovative FinTech startup transforming the Private Equity industry with cutting-edge technology. Our platform empowers investment professionals with real-time insights, seamless collaboration, and powerful automation tools to drive smarter decision-making. We are growing rapidly and looking for a Principal Full Stack Software Engineer to lead the development of our next-generation financial technology solutions Responsibilities + Architect, design, and develop scalable end-to-end solutions for our platform, covering both frontend and backend. + Lead engineering efforts in designing robust, secure, and high-performance web applications. + Collaborate closely with product, design, and data teams to build intuitive and data-driven user experiences. + Drive best practices in code quality, security, and performance optimization.Requirements + 8+ years of experience in full-stack software development. + Expertise in JavaScript/TypeScript and modern frontend frameworks like React.js, Next.js, or Vue.js. + Strong backend development experience in Node.js, Python, or Ruby on Rails. + Experience with SQL and NoSQL databases (PostgreSQL, MongoDB, or similar). Preferred Qualifications + Experience working in a high-growth startup or fast-paced environment. + Knowledge of financial modeling, data visualization, or algorithmic trading. + Familiarity with AI/ML-driven analytics and automation.Benefits + Competitive salary and meaningful equity in a high-growth startup. + Health, dental, and vision insurance. **You will receive the following benefits:** + Medical Insurance - Four medical plans to choose from for you and your family + Dental & Orthodontia Benefits + Vision Benefits + Health Savings Account (HSA) + Health and Dependent Care Flexible Spending Accounts + Voluntary Life Insurance, Long-Term & Short-Term Disability Insurance + Hospital Indemnity Insurance + 401(k) including match with pre and post-tax options + Paid Sick Time Leave + Legal and Identity Protection Plans + Pre-tax Commuter Benefit + 529 College Saver Plan Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP’s Employment Accommodation policy. Applicants need to make their needs known in advance. **Posted by:** Courtney Delehanty **Specialization:** + Javascript