Full Stack Engineer

Senior Full Stack Engineer - Contract

As part of Theradex Oncology, you will have the opportunity to work with one of the largest professional teams focused solely on the development of cancer therapies. Cancer research continues to evolve as new therapies and therapeutic approaches are discovered, as part of the team you will work to support our sponsors in the development of these therapies. Theradex Oncology is an environment for highly motivated individuals who want to make a difference.

Location: Princeton NJ and Remote – Preference given to applicants residing on the East Coast.

We are seeing a Contract Senior Full Stack Engineer to design, build, and deliver modern, production‑grade applications across the full technology stack. This role is hands‑on and execution‑focused, with responsibility for solution quality, performance, and usability. The position includes providing technical direction, guidance, and mentorship to mid‑level and junior developers. Responsibilities will include:

• Design, develop, and maintain end‑to‑end full stack solutions, including frontend, backend services, APIs, and data integrations
• Build modern, responsive, and intuitive user interfaces, working closely with UX and product partners
• Define and implement scalable, secure, and maintainable technical solutions for production environments
• Translate product and business requirements into clear, well‑structured technical designs
• Provide ongoing technical guidance, code reviews, and implementation support to mid‑level and junior developers
• Promote and enforce best practices for coding standards, testing, CI/CD, and deployment
• Take ownership of complex features and workflows from design through production release
• Ensure application performance, reliability, security, and operational stability
• Collaborate closely with product managers, designers, and stakeholders throughout the delivery lifecycle
• Contribute to technical documentation, knowledge sharing, and continuous improvement initiatives

• Bachelor's degree required, Advanced degree preferred
• 4–6 years of professional software development experience in full stack roles
• Experience with end‑to‑end project to include gathering requirements, UX, production and deployment
• 2+ years' experience with .Net Core & C#
• Strong experience with modern frontend frameworks (e.g., React, Angular, or Vue)
• Experience designing and consuming RESTful APIs
• Working knowledge of relational and/or No
  
  SQL databases
• Experience building, deploying, and supporting production‑grade applications
• Familiarity with cloud platforms (AWS, Azure) and CI/CD pipelines
• Strong understanding of software engineering fundamentals, testing strategies, and version control
• Possibility of occasional domestic travel for face‑to‑face meetings or training. Advanced notice will be provided.

At Theradex we offer a supportive culture that puts people first. The annual base salary for this position ranges from $,000. The actual salary offer will be based on a number of factors, including but not limited to the candidate’s qualifications, experience, skills, and competencies for the role.

This is a contract position and not eligible for relocation or company provided sponsorship.

Theradex is an Equal Opportunity Employer.