Lead Full Stack Developer

Theradex Oncology is a full-service CRO specializing in oncology. The company manages global oncology trials and programs. The company was founded in 1982 working with the National Cancer Institute, which led to its expansion to working with industry sponsors developing cancer therapeutics. As a service-based company we support both domestic and international sponsors in the conduct of both early and late phase trials.

Location:
Princeton, NJ (Hybrid – Onsite 3 days/week preferred) - Will consider regionally remote candidates (East Coast only).

We are seeking a Lead Full stack developer responsible for designing, building and operating end-to-end web applications and data driven solutions that support clinical trial operations. This is a hands-on technical leadership role, combining senior individual contributor responsibilities with mentoring and guiding other developers on modern practices. This role requires recent hands-on experience owning technical solutions and driving projects forward while maintaining Full Stack Development responsibilities.

• Oversee application development team's technical delivery across all projects while remaining a hands-on Full Stack Developer.
• Design and implement scalable, secure frontend and backend components, including APIs, services and UI workflows, following clean architecture and solid principles.
• Collaborate with product owners, technical analysts, project managers, platform engineering and analytics teams to translate complex business needs into practical technical solutions.
• Own technical solutions end to end: architecture, implementation, testing, deployment, and support.
• Establish and champion coding standards, automated testing, and CI/CD pipelines to improve quality, reliability and release frequency. Mentor and guide other developers; enforce engineering best practices, code quality, and architectural integrity.
• Collaborate with Solutions Architect, Dev Ops, and Data teams to translate business needs into scalable technical designs.
• Ensure all development follows SDLC, validation, GxP, and 21 CFR Part 11 requirements.
• Design secure integrations with external clinical and operational systems.
• Troubleshoot complex system issues and lead root cause analysis.
• Drive continuous improvement in cloud performance, cost optimization, security posture, and CI/CD automation.
• Understand and continue to stay current with the AWS Cloud development environment and tools that the systems utilize.
• Provide technical mentorship and oversight through design reviews, pairing programming and structured feedback.

• Bachelor's Degree required
• Minimum 8 years of experience leading a development team focused on building On-prem and Cloud applications Core stack C#/ASP.NET, .NET, React/Angular, SQL, NO SQL, AWS and Azure
• Experience overseeing an application development teams technical delivery while remaining a hands-on full stack developer.
• Strong experience redeveloping on-prem web applications to be optimized for the AWS Cloud
• Experience leading an entire Cloud software development project
• Experience building AWS based web sites, applications and integrations
• AWS services such as Cloud Watch, SES, S3, ECR, ECS, Lambda functions

At Theradex we offer a supportive culture that puts people first. Our employees are eligible to participate in our comprehensive benefits package which includes medical, dental and vision coverage; life insurance, disability insurance (STD/LTD), company matched 401(k), very competitive tuition reimbursement, generous vacation/sick plans, flexible work schedules, employee discounts and other company provided benefits. The annual base salary for this position ranges from $140,000 - $175,000 with the possibility of a sign-on bonus and an annual performance bonus.

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.

Theradex is an Equal Opportunity Employer.