About ALSF

Backend Engineer

Childhood Cancer Data Lab (CCDL)
Powered by Alex’s Lemonade Stand Foundation (ALSF)

CCDL Overview

Located in the Philadelphia area, The Childhood Cancer Data Lab (CCDL) is a new program of Alex's Lemonade Stand Foundation (ALSF). The CCDL builds technologies that enable childhood cancer researchers to enlist big data to advance childhood cancer research. The CCDL is comprised of a team of software developers, data scientists, designers, and others who are driven to build software systems that address these needs. The CCDL aims to produce modular, open source, usable software. Members of the CCDL simultaneously contribute childhood cancer research and to the open source software community.

What is Alex’s Lemonade Stand Foundation?

Alex's Lemonade Stand Foundation (ALSF) emerged from the front yard lemonade stand of 4-year-old Alexandra “Alex” Scott, who was fighting cancer and wanted to raise money to find cures for all children with cancer. Her spirit and determination inspired others to support her cause, and when she passed away at the age of 8, she had raised $1 million. Since then, the Foundation bearing her name has evolved into a national fundraising movement. Today, ALSF is one of the leading funders of pediatric cancer research in the U.S. and Canada having raised more than $150 million so far, funding nearly 1,000 research projects and providing programs to families affected by childhood cancer. For more information, visit AlexsLemonade.org.

About the Position

The CCDL's backend engineer writes code to develop Childhood Cancer Data Lab (CCDL) services and interfaces that meet the needs of researchers studying childhood cancer. These developments will serve a community of dedicated scientists and clinicians, including those who receive grants from ALSF. This team member will be expected to improve and expand the backend services of the CCDL. The backend engineer will need to be able to select the most appropriate approach for the challenge at hand: some CCDL software will be primarily user facing, while other software will perform computationally intensive processing of large collections of data.

The CCDL position will provide the backend engineer with the opportunity to design, implement, and deploy data-processing systems as well as systems that enable the user-guided analysis and interpretation of large-scale datasets. This member of the team will need an understanding of how to efficiently break down problems into solvable pieces and deliver quality software solutions. Working in the CCDL also provides a unique opportunity to interact with the childhood cancer research community and its supporters at ALSF.


  • Collaborate with team members to understand issues and determine solutions.
  • Develop and deploy software solutions for diverse problems to compute infrastructure.
  • Write clean, maintainable source code.
  • Participate in code review to maintain and raise code quality.


  • Expertise in Python.
  • BS in computer science, software engineering, information systems, or equivalent work experience.
  • Experience designing data-intensive computing solutions is a plus.
  • Applications that include either a portfolio with work samples or demonstrable contributions to open source projects are preferred.


This full-time opportunity offers a competitive salary and benefits package. Interested candidates should submit a CV/resume with cover letter describing your interest and why you would be the right fit for this position to [email protected].