Onward Search is a specialized staffing and talent solutions company that helps professionals find top jobs with the nation’s leading brands. We’re hiring a Full Stack Developer IV (NestJS) in New York, NY for a top-tier financial technology group. This is a 6-month contract opportunity with potential for extension or conversion, and is a hybrid role requiring two days onsite per week (Wednesdays mandatory).

In this role, you’ll join the IT Applications Development team to modernize a proprietary index tool used by clients. The project involves reworking a complex inherited codebase, building scalable full stack solutions, and contributing heavily to backend development using NestJS.

There is no application deadline for this role.

Full Stack Developer IV (NestJS) Responsibilities:

• Rework and modernize an inherited, complex codebase.

• Build and maintain modern UI components (ReactJS; 80-90% frontend work).

• Develop backend services using NestJS (required), Express or Fastify.

• Collaborate with cross-functional teams to translate requirements into technical solutions.

• Write unit and integration tests to ensure code quality.

• Troubleshoot across the full stack.

• Stay updated on best practices, tools, and technologies.

• Participate in virtual technical interviews and deliver high-quality code in a fast-paced environment.

Full Stack Developer IV (NestJS) Qualifications:

• 8+ years of hands-on experience in full stack development.

• 6–8 years of proven hands-on experience with NestJS is mandatory.

• Strong proficiency in JavaScript, HTML, CSS.

• Experience with ReactJS (frontend), and backend tech: NestJS (required), Express, or Fastify.

• Experience with Redux or state management libraries (Zustand is a plus).

• Exposure to Java or .NET backend environments a plus.

• REST API design experience.

• Git/version control and CI/CD familiarity.

• Strong debugging, problem-solving, and collaboration skills.

• Bachelor's degree preferred, Master's a strong plus.

Perks & Benefits:

• Medical, Dental, and Vision Insurance.

• Life Insurance.

• 401(k) Program.

• Commuter Benefit.

• eLearning & Ongoing Training.

• Education Reimbursement.

*Eligibility requires working over 30 hours per week on an assignment lasting at least 10 weeks.

If you meet the qualifications and are excited about this opportunity, apply today! Our team will connect with you to discuss next steps, support you through the interview process, and advocate for your success.

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About Onward Search

Onward Search is a nationwide staffing agency and talent solutions provider specializing in creative, marketing, and technology professionals. We work with our nationwide clients to continuously pipeline and fill specialized roles. As such, not all jobs contain an application deadline.

Equal Opportunity Employment

We are an equal opportunity employer. We do not discriminate based on race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, genetic information, veteran status, or any other protected category. Candidates must be at least 18 years old to be considered for employment.
EOE/M/F/D/V/SO

Inclusive Hiring Practices

We’re committed to making every part of our hiring process accessible and inclusive. If you need any accommodations or adjustments to support you during the application or interview process, please contact us at inclusivehiring@onwardsearch.com.

Employment Eligibility

In compliance with federal law, all persons hired must verify their identity and eligibility to work in the United States. We are unable to support 1099 / Corp-to-Corp / Independent Contractor arrangements. All freelancers will be hired as W2 employees.

Benefits

We offer medical, dental, and vision insurance as well as a 401(k) retirement plan to all eligible full-time temporary employees. Onward Search is a drug-free workplace.

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Virtual Interview Process

To help streamline the hiring process and ensure a more flexible and accessible experience for all candidates, we’ve partnered with Apriora, a virtual interviewing platform. For select job openings, you may receive an invitation to interview with Alex, our virtual interviewer, via email at alex@onwardsearch.com.

Alex will guide you through a brief set of questions to help us better understand your background and interests. The virtual interview can be completed on your own time, and your responses will be reviewed by our recruiting team as part of the screening process.

To learn more about the platform, visit Apriora’s website.

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Job Seeker Scam Alert

We’ve become aware of fraudulent recruiters impersonating Onward Search representatives to collect personal or financial information from potential job seekers. Please be vigilant and always protect your information. Learn more about potential threats and how to protect yourself by visiting our job seeker scam alert page.