Principal Full-Stack Developer

Job Description

Job Description

We are partnering with a leading financial services organization to hire a Principal Full-Stack Developer to drive the design and delivery of a next-generation structured products trading platform UI . This is a highly visible role requiring both hands-on engineering expertise and technical leadership within a complex, enterprise environment.

You will play a critical role in shaping modern front-end architecture, guiding engineering teams, and collaborating closely with stakeholders to deliver high-quality, scalable software solutions.

???? Location: New York, NY (Hybrid – 3 days onsite)
???? Salary: $180,000 – $200,000 base
???? Employment Type: Full-Time / Direct Hire

Key Responsibilities

• Lead the design, architecture, and development of a structured products trading UI using modern web technologies.
• Own the end-to-end delivery of engineering solutions, ensuring high quality and timely execution.
• Act as a hands-on engineer and architect , contributing directly to development while guiding technical decisions.
• Design, document, and plan technical solutions for production-ready software.
• Collaborate cross-functionally with engineering teams, product stakeholders, and business partners.
• Build and maintain strong client and stakeholder relationships , acting as a trusted technical advisor.
• Drive best practices in software engineering, scalability, and performance optimization .
• Mentor team members and serve as a technical role model across projects.

Required Qualifications

• 10+ years of hands-on development experience with Python or C#
• 5+ years of experience building front-end applications using React and modern state management frameworks
• Strong experience designing and deploying applications on AWS , including Terraform and Docker
• Proven ability to operate effectively within large, complex organizations (e.g., global financial institutions)
• Deep understanding of SQL and large-scale data persistence strategies
• Bachelor’s degree in Computer Science or equivalent experience
• Strong knowledge of global financial markets and financial products , with demonstrated interest in the domain

Preferred Skills

• Experience building trading platforms or financial applications
• Strong understanding of UI/UX principles for real-time data applications
• Ability to balance hands-on development with leadership responsibilities
• Excellent communication and stakeholder management skills

What You’ll Gain

• Opportunity to work on mission-critical trading systems
• High-impact role with visibility across business and technology leadership
• Collaborative, fast-paced environment with cutting-edge technologies
• Competitive compensation and long-term growth potential

Estimated Min Rate : $140000.00
Estimated Max Rate : $200000.00

What’s In It for You?
We welcome you to be a part of the largest and legendary global staffing companies to meet your career aspirations. Yoh’s network of client companies has been employing professionals like you for over 65 years in the U.S., UK and Canada. Join Yoh’s extensive talent community that will provide you with access to Yoh’s vast network of opportunities and gain access to this exclusive opportunity available to you. Benefit eligibility is in accordance with applicable laws and client requirements. Benefits include:

• Medical, Prescription, Dental & Vision Benefits (for employees working 20+ hours per week)
• Health Savings Account (HSA) (for employees working 20+ hours per week)
• Life & Disability Insurance (for employees working 20+ hours per week)
• MetLife Voluntary Benefits
• Employee Assistance Program (EAP)
• 401K Retirement Savings Plan
• Direct Deposit & weekly epayroll
• Referral Bonus Programs
• Certification and training opportunities

Note: Any pay ranges displayed are estimations. Actual pay is determined by an applicant's experience, technical expertise, and other qualifications as listed in the job description. All qualified applicants are welcome to apply.

Yoh, a Day & Zimmermann company, is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Visit -with-disabilities to contact us if you are an individual with a disability and require accommodation in the application process.

For California applicants, qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. All of the material job duties described in this posting are job duties for which a criminal history may have a direct, adverse, and negative relationship potentially resulting in the withdrawal of a conditional offer of employment.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

By applying and submitting your resume, you authorize Yoh to review and reformat your resume to meet Yoh’s hiring clients’ preferences. To learn more about Yoh’s privacy practices, please see our Candidate Privacy Notice: -notice

Company Description

Yoh delivers expertise, methodology, and momentum to keep work moving forward. From strategy to execution, we deliver bold ideas and big results through consulting, staffing, and enterprise solutions. Nearly a century after our founding, Yoh remains STEM-centered, collaborative, and committed to client success. Yoh is a proud member of the Day & Zimmermann family of companies. Visit us at

Company Description

Yoh delivers expertise, methodology, and momentum to keep work moving forward. From strategy to execution, we deliver bold ideas and big results through consulting, staffing, and enterprise solutions. Nearly a century after our founding, Yoh remains STEM-centered, collaborative, and committed to client success. Yoh is a proud member of the Day & Zimmermann family of companies. Visit us at