Senior Software Quality Engineer (I, II, III)

Sorry, this job was removed at 08:09 p.m. (CST) on Tuesday, Jul 15, 2025
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South San Francisco, CA, USA
In-Office
90K-210K Annually
Biotech
The Role
Cellares is seeking an innovative and highly motivated Senior Software Quality Engineer who will contribute to the development of our advanced cell therapy manufacturing platform.

The primary focus of this position is to generate, review and execute software test plans and test cases, perform exploratory testing, report issues, and track them to closure. The individual will participate on a cross-functional team, building software to manage QC order scheduling and execution on Cellares Cell Q platform hardware. The successful candidate should have experience with acceptance, regression, performance, and user experience testing. They should be detail-oriented and possess strong analytical and problem-solving skills.

Candidates should enjoy working in a fast-paced, mission-driven environment, and be prepared to tackle a broad selection of challenges as the company grows. Candidates should be great team players with the ability to work with minimal supervision.

Responsibilities

  • Review requirements, specifications, and technical design documents to provide timely and meaningful feedback
  • Create detailed, comprehensive, and well-structured test plans and test cases
  • Estimate, prioritize, plan and coordinate testing activities
  • Design, develop and execute automation scripts using open-source tools when required
  • Identify, record, document thoroughly and track bugs, and collaborate with engineers on root cause analysis and resolution
  • Perform thorough regression testing when bugs are resolved
  • Develop and apply testing processes for new and existing products
  • Liaise with internal teams (e.g. developers/system engineering and product managers) to identify/finalize system requirements
  • Perform integration testing of system software and hardware for Cell Q and Cell Shuttle releases
  • Participate in daily stand-ups, communicate status and discoveries clearly and timely

Requirements

  • Bachelor’s or Master’s in Computer Science, Electrical Engineering, or related field
  • 5+ years of relevant experience
  • Operational and testing experience of software that interfaces with hardware systems
  • Experience with laboratory analytical instruments and automated systems
  • Familiar with flow cytometry, genomic, and cell-based assays
  • Experience with root cause analysis and identifying defects
  • Experience developing automated test scripts (with Selenium or equivalent frameworks using Microsoft C#)
  • Experience using Azure DevOps for test planning, execution and analytical purposes
  • Ability to process data, interpret testing results and provide feedback to the team
  • Desire to be part of a rapidly evolving organization, with compelling technology, and taking products and processes to the next level
  • Self-awareness, integrity, authenticity, and a growth/entrepreneurial mindset

This is Cellares

Cellares is the first Integrated Development and Manufacturing Organization (IDMO) and takes an Industry 4.0 approach to mass manufacturing the living drugs of the 21st century. The company is both developing and operating integrated technologies for cell therapy manufacturing to accelerate access to life-saving cell therapies. The company’s Cell Shuttle integrates all the technologies required for the entire manufacturing process in a flexible and high-throughput platform that delivers true walk-away, end-to-end automation. Cell Shuttles will be deployed in Cellares’ Smart Factories around the world to meet total patient demand for cell therapies at global scale. Partnering with Cellares enables academics, biotechs, and pharma companies to accelerate drug development and scale out manufacturing, lower process failure rates, lower manufacturing costs, and meet global patient demand.
The company is headquartered in South San Francisco, California with its commercial-scale IDMO Smart Factory in Bridgewater, New Jersey. The company is backed by world-class investors and has raised over $355 million in financing.

Leveling will be based on overall experience, education, and demonstration of knowledge throughout the interview process.

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The Company
HQ: South San Francisco, CA
109 Employees
Year Founded: 2019

What We Do

Cellares is revolutionizing cell therapy manufacturing. We are developing a one-of-a-kind solution, The Cell Shuttle, to overcome the challenges associated with manufacturing so these life-saving therapies are affordable and widely available to patients who can benefit. The clinical impact of cell therapy in treating cancer has been proven, but this therapeutic approach has several limitations, especially in manufacturing, leaving extremely sick patients waiting for treatment and desperate for hope. Since cell therapy is currently produced for a single patient at a time, it is expensive to manufacture, requiring significant time and resources, and is difficult to scale. Preclinical and clinical scientists, as well as commercial cell therapy manufacturers also lack the options to fully automate their manufacturing process quickly, safely, cost-effectively and at the scale they need. The Cell Shuttle is an automated and closed end-to-end manufacturing solution that is flexible and scalable, enabling customers to run exact processes specified for their cell therapy. Compared with the current manual manufacturing processes for cell therapy, the Cell Shuttle’s next-generation automated manufacturing solution has 10 times the scalability (meaning 10 times more patient doses can be produced simultaneously), enables a three-fold reduction in process failure rates and will reduce the per-patient manufacturing cost by up to 70 percent for most processes.

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