Motion Recruitment
Lead Fullstack Engineer / St Louis / Java / React / MongoDB
Motion Recruitment, Saint Louis, Missouri, United States, 63146
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Lead Fullstack Engineer / St Louis / Java / React / MongoDB
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Motion Recruitment 1 day ago Be among the first 25 applicants Join to apply for the
Lead Fullstack Engineer / St Louis / Java / React / MongoDB
role at
Motion Recruitment We are seeking a Lead Fullstack Engineer with strong experience in Java, React, and MongoDB to join a Wealth and Investment Management Technology team modernizing a core financial advisor platform. This role is part of a major initiative to overhaul a 25+ year-old legacy system, replacing outdated infrastructure with a modern Spring Boot and microservices-based architecture. The project will streamline account maintenance for financial advisors, reducing legal documentation from 90+ pages to just eight, and significantly improving workflow efficiency.
If you’re excited about building scalable applications, working across both frontend and backend (50/50 split), and leading efforts to modernize mission-critical platforms, this is an opportunity to make a large-scale impact. You’ll join a highly collaborative engineering team working in agile ceremonies while spending the majority of time hands-on coding. Required Skills & Experience
7+ years of professional software engineering experience Strong expertise with Java Spring Boot for backend development Proficiency with React for frontend development Experience working with MongoDB or other NoSQL databases Fullstack development background with a balance of frontend and backend work Ability to write clean, maintainable, well-tested code in a collaborative environment Experience working in agile teams (stand-ups, retrospectives, sprint planning)
Desired Skills & Experience
Familiarity with SQL (Oracle or SQL Server) for cross-team interaction Experience modernizing or rebuilding legacy platforms Background in microservices-based architecture Experience gathering requirements and collaborating with stakeholders across engineering, product, compliance, or risk Leadership experience (mentoring junior engineers, defining technical approaches, guiding design decisions) Strong problem-solving skills and ability to identify work independently
What You Will Be Doing
Designing and maintaining backend services in Go Leading development of fullstack features with Java Spring Boot and React Collaborating with financial advisors, engineers, legal, compliance, and risk teams to define requirements Supporting modernization of a legacy financial advisor platform into a microservices-based application Designing and maintaining backend services, APIs, and data integrations with MongoDB Building user-friendly frontends to simplify workflows and improve efficiency Participating in agile ceremonies while dedicating ~90% of time to coding Contributing to long-term architectural decisions and system scalability
The Offer You Will Receive The Following Benefits
Competitive compensation package Medical, Dental and Vision Insurance Hybrid work flexibility with location preference for St. Louis or Charlotte Opportunity to lead within a smaller engineering pod (4–7 engineers) while part of a larger 17-person group Exposure to greenfield modernization work on a high-impact platform
Applicants must be authorized to work in the U.S. on a full-time basis now and in the future.
Posted By:
Olivia Policastro
Seniority level
Seniority level Mid-Senior level Employment type
Employment type Contract Job function
Job function Engineering and Information Technology Industries Staffing and Recruiting Referrals increase your chances of interviewing at Motion Recruitment by 2x Get notified about new Full Stack Engineer jobs in
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Lead Fullstack Engineer / St Louis / Java / React / MongoDB
role at
Motion Recruitment 1 day ago Be among the first 25 applicants Join to apply for the
Lead Fullstack Engineer / St Louis / Java / React / MongoDB
role at
Motion Recruitment We are seeking a Lead Fullstack Engineer with strong experience in Java, React, and MongoDB to join a Wealth and Investment Management Technology team modernizing a core financial advisor platform. This role is part of a major initiative to overhaul a 25+ year-old legacy system, replacing outdated infrastructure with a modern Spring Boot and microservices-based architecture. The project will streamline account maintenance for financial advisors, reducing legal documentation from 90+ pages to just eight, and significantly improving workflow efficiency.
If you’re excited about building scalable applications, working across both frontend and backend (50/50 split), and leading efforts to modernize mission-critical platforms, this is an opportunity to make a large-scale impact. You’ll join a highly collaborative engineering team working in agile ceremonies while spending the majority of time hands-on coding. Required Skills & Experience
7+ years of professional software engineering experience Strong expertise with Java Spring Boot for backend development Proficiency with React for frontend development Experience working with MongoDB or other NoSQL databases Fullstack development background with a balance of frontend and backend work Ability to write clean, maintainable, well-tested code in a collaborative environment Experience working in agile teams (stand-ups, retrospectives, sprint planning)
Desired Skills & Experience
Familiarity with SQL (Oracle or SQL Server) for cross-team interaction Experience modernizing or rebuilding legacy platforms Background in microservices-based architecture Experience gathering requirements and collaborating with stakeholders across engineering, product, compliance, or risk Leadership experience (mentoring junior engineers, defining technical approaches, guiding design decisions) Strong problem-solving skills and ability to identify work independently
What You Will Be Doing
Designing and maintaining backend services in Go Leading development of fullstack features with Java Spring Boot and React Collaborating with financial advisors, engineers, legal, compliance, and risk teams to define requirements Supporting modernization of a legacy financial advisor platform into a microservices-based application Designing and maintaining backend services, APIs, and data integrations with MongoDB Building user-friendly frontends to simplify workflows and improve efficiency Participating in agile ceremonies while dedicating ~90% of time to coding Contributing to long-term architectural decisions and system scalability
The Offer You Will Receive The Following Benefits
Competitive compensation package Medical, Dental and Vision Insurance Hybrid work flexibility with location preference for St. Louis or Charlotte Opportunity to lead within a smaller engineering pod (4–7 engineers) while part of a larger 17-person group Exposure to greenfield modernization work on a high-impact platform
Applicants must be authorized to work in the U.S. on a full-time basis now and in the future.
Posted By:
Olivia Policastro
Seniority level
Seniority level Mid-Senior level Employment type
Employment type Contract Job function
Job function Engineering and Information Technology Industries Staffing and Recruiting Referrals increase your chances of interviewing at Motion Recruitment by 2x Get notified about new Full Stack Engineer jobs in
St Louis, MO . Node.js Backend Developer - United States
Software/Web Developer - Junior (SFN-SWD)
Full Stack Software Engineer (TS/SCI Clearance Required)
Full-Stack Java Developers with Angular and AWS_only on W2_only local to St. Louis, MO
Java Developer with Angular/AWS_Local to Saint Louis, MO_Only on W2_No 1099/C2C
Senior Angular Developer -100% onsite, permanent direct-hire up to $130k + bonus (26931)
Full-Stack Software Engineer - TS/SCI Required
St Louis, MO $75,200.00-$158,100.00 1 month ago Earth City, MO $98,175.00-$115,500.00 1 week ago St Louis, MO $75,920.00-$129,480.00 2 weeks ago Greater St. Louis $85,000.00-$110,000.00 1 week ago Senior Full Stack Java Software Engineer
We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr