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Full Stack React.js Developer Lead

Company:
3B Staffing
Location:
Manhattan, NY, 10003
Posted:
April 28, 2026
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Description:

Full Stack React.js Developer Lead/Financial Services -

Hybrid/Long Island City, NY -

No H1

THIS POSITION IS WIDE OPEN AND REQUIRES GOOD EXPERIENCE AS A DEVELOPMENT LEAD (3+ YEARS). SALARY CAN GO UP TO $200k FOR THE RIGHT CANDIDATE. MANAGER IS ASKING FOR RESUMES TO REVIEW THIS WEEK.

** PLEASE Only send me candidates in the NY/NJ area.

We need: A senior Lead Full stack React.js Developer with Significant experience with Python, Go, NodeJS, or equivalent full stack development. Candidates must have at least two years of lead experience including leading or mentoring software engineers (formal or informal). Strong relational database skills (Postgres, MySQL, Oracle) and SQL proficiency as well as experience with NoSQL solutions a plus (MongoDB, etc.).

Candidates should be coming out of Banking, Financial Services, Fintech, Capital Markets, Healthcare or NON- Profit environments.

Please provide all the below details with each submittal. It is required for the vendor Management system.

Number of years working with:

Total IT experience:

Years working with: Full Stack React Development

Years working with: Lead experience

Years working with: Python, Go, NodeJS, or equivalent full stack development

Years working with: Postgres, MySQL, Oracle

Years working with: Banking, Financial Services, Fintech, Capital Markets, Healthcare or NON- Profit environments.

Full Name:

Salary:

Location:

Availability to Interview: One Day's notice

Availability to Start: Two weeks

Email Address:

Phone Number:

Visa Status:

Education - College/Year of graduation:

Link to LinkedIN?

Certifications?

Job Description:

Team Leadership & Oversight

Lead, mentor, and support a team of four full stack software engineers.

Ensure tasks and project milestones are completed on schedule.

Oversee team capacity planning, sprint planning, and workload distribution.

Conduct code reviews, enforce engineering best practices, and ensure high code quality.

Provide technical guidance and serve as an escalation point for complex engineering challenges.

Foster a healthy engineering culture emphasizing clarity, accountability, and continuous improvement.

Cross?Department Collaboration

Work closely with stakeholders across departments to gather and refine requirements.

Translate business needs into actionable technical specifications and development plans.

Represent the engineering team in cross-functional meetings and planning sessions.

Communicate progress, roadblocks, and timelines effectively with non?technical partners.

Software Development

Contribute to design, development, and maintenance of internal data systems.

Write reusable, testable, and efficient front?end and back?end code.

Architect and oversee development of scalable client/server data solutions.

Design and implement REST API endpoints and data integration pipelines.

Ensure security and data protection measures are built into all solutions.

Participate in and guide planning for new features, systems, and enhancements.

Data Analysis & Systems Support

Oversee and support querying of relational databases for operational needs.

Support building aggregate data sets and analytics tools to inform business decisions.

Ensure high reliability and accuracy of internal data pipelines and storage systems.

Other Duties and Responsibilities

Manage and track team activity via project management tools (e.g., Asana).

Support occasional IT?adjacent tasks as assigned.

Ensure team adherence to organizational conflict?of?interest and code?of?conduct policies.

Drive continuous improvement of engineering processes, documentation, and tooling.

QUALIFICATIONS, EDUCATION, AND EXPERIENCE

Required Work Experience

5-7 years professional software development experience.

2-3+ years experience leading or mentoring software engineers (formal or informal).

Significant experience with Python, Go, NodeJS, or equivalent full stack development.

Experience working with relational and non?relational data solutions at scale.

Demonstrated experience owning or architecting production systems.

Required Skills

Strong leadership, communication, and team?building skills.

Proven ability to guide engineering teams through complex development cycles.

Expertise with at least one major web framework (ReactJS, VueJS, etc.).

Strong relational database skills (Postgres, MySQL, Oracle) and SQL proficiency.

Experience with NoSQL solutions a plus (MongoDB, etc.).

Deep familiarity with Agile practices (Kanban, Scrum, etc.).

Commitment to best practices in code quality, testing, security, and documentation.

Required Education

Bachelor's degree in computer science, data engineering, mathematics, or a related software development discipline.

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