Senior Staff Engineer - MERN Full Stack

At Marketplace, our mission is to help readers turn their aspirations into reality. We arm people with trusted advice and guidance, so they can make informed decisions they feel confident in and get back to doing the things they care about most.

We are an experienced team of industry experts dedicated to helping readers make smart decisions and choose the right products with ease. Marketplace boasts decades of experience across dozens of geographies and teams, including Content, SEO, Business Intelligence, Finance, HR, Marketing, Production, Technology and Sales. The team brings rich industry knowledge to Marketplace’s global coverage of consumer credit, debt, health, home improvement, banking, investing, credit cards, small business, education, insurance, loans, real estate and travel.

Job Overview:

We are seeking a highly skilled Senior Fullstack Engineer  to join our dynamic team. This role demands extensive experience in both frontend and backend development, along with a strong grasp of cloud technologies and database management. You will work closely with the Engineering team, Product team, and other stakeholders to design and implement scalable, secure, and high-performance solutions. As a technical leader, you will ensure adherence to best practices, provide mentorship, and drive cross-functional collaboration.

Responsibilities 

• Technical Ownership: Design and architect complex, scalable full-stack solutions across multiple teams and systems.

• Hands-on Development: Write clean, maintainable, and efficient code primarily in React (frontend) and Node.js (backend).

• Cross-Functional Collaboration: Work with product, design, QA, and DevOps to drive alignment and deliver business value.

• Code & Design Reviews: Set and enforce coding standards, review code regularly, and guide design discussions.

• Scalability & Performance: Optimize applications for speed, efficiency, and scalability across services and UIs.

• Mentorship: Guide and upskill senior/staff engineers and engineering leads. Drive best practices and continuous learning.

• Tech Strategy: Contribute to long-term technology vision, evaluate new tools/frameworks, and de-risk architectural decisions.

• DevOps and CI/CD: Collaborate on infrastructure automation, deployment pipelines, and observability practices.

• Security & Compliance: Ensure engineering outputs meet high standards of security, data privacy, and compliance (e.g., GLBA, GDPR,CCPA etc).

Must have experience requirements:

• Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.

  • 12+ years of software engineering experience, including 7+ years in full-stack development.

  • Deep expertise in React, Node.js, and TypeScript.

  • Proven experience architecting complex systems and influencing tech direction at scale.

  • Solid understanding of data structures, system design, API design, and microservices.

  • Experience with cloud-native apps, containers, and DevOps workflows.

  • Strong communication, mentorship, and leadership-by-influence skills.

• Tech Stack:

• Frontend: React, Redux/Context API, TypeScript, Tailwind/CSS-in-JS

• Backend: Node.js, Express/Nest.js, TypeScript

• API: REST, GraphQL

• Database: PostgreSQL, MongoDB, Redis

• Infra/DevOps: Docker, Kubernetes, GitHub Actions, AWS/GCP

• Testing: Jest, Cypress, React Testing Library, Supertest

Leadership & Team:

• Proven experience in coaching and mentoring a team of developers.

• Proven track record of delivering complex projects successfully.

• Ability to conduct code reviews and provide constructive feedback.

• Experience in agile methodologies (Scrum, Kanban).

• Ability to manage project timelines and deliverables effectively.

• Excellent verbal and written communication skills.

• Ability to explain technical concepts to non-technical stakeholders.

• Strong analytical and problem-solving skills.

• Ability to troubleshoot and resolve complex technical issues.

• Experience in working with cross-functional teams (designers, product managers, QA).

• Ability to quickly learn and adapt to new technologies and frameworks.

Perks:

• Day off on the 3rd Friday of every month (one long weekend each month)

• Monthly Wellness Reimbursement Program to promote health well-being

• Monthly Office Commutation Reimbursement Program

• Paid paternity and maternity leaves

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.