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Software Engineer III Backend

Fluxergy

Job Location:

Irvine, CA - USA

Monthly Salary: $ 125000 - 140000

Posted: 24 May 2026 (30+ days ago)

Application Deadline: 10 November 2026

Vacancies: 1 Vacancy

Job Summary

About Us

Fluxergy is a rapidly growing in vitro diagnostics company innovating on the cutting-edge of laboratory testing. Were developing the first and only multi-modal point-of-care platform that enables molecular clinical chemistry immunoassay and hematology testing on the same system.

Our platform spans many markets including the clinical veterinary and food safety industries. We are seeking self-motivated problem solvers who are excited to help decentralize traditional laboratory infrastructure.

At the core of our companys identity is a strong foundation in engineering. We take great pride in our commitment to critical thinking and pragmatic problem-solving through a modular and systemic perspective. We hold the conviction that transparent communication coupled with the flexibility to adjust to evolving scenarios and the willingness to venture beyond familiar territories is crucial to both our success and yours.

Our product: the Role

As a Software Engineer - Backend you will be part of an expanding Software team and will apply yourexpertiseto design develop andmaintainbackend services for our medical device platform. You will have the opportunity to develop Fluxergys current software enhancing its capability improving securityfeaturesand tosupport system bring up and integration with cross-functional teams.

Specifically you can be expected to complete the following tasks:

Team culture:

- Self Driven

- Proactive

- Great communicator

- Contribute to a productive team culture

What You Will Do

Design develop andmaintainbackendapplicationsAPIs and integrations for our medical device platform ensuring compliance with relevant medical device regulations and standards.
Lead technical discussions and collaborate with cross-functional teams to define and implement software requirements.
Architect and optimize database systems to store and manage critical medical data securely and efficiently.
Implement robust scalable and high-performance solutions using modern software development best practices and technologies.
Participate in and lead code and design reviews contributing to a culture of continuous improvement and shared learning.
Collaborate with front-end development teams to ensure seamless integration of backend services and APIs.
Support platform development with cross-functional teams.
Mentor junior team members and provide technical guidance as needed.
Create and maintain internal documentation and tools to support development testing and compliance efforts.
Stay abreast of industry trends emerging technologies and best practices in medical device software development.
Actively contribute to a positive growth-oriented team culture.

What Youll Need to Have

5 years of experience in Backend Engineering.

4 years working with Databases and API design and implementation.

4years of experience developing backend services or applications.

Proficiencyin multiple server-side programming languages and frameworks. (PythonJavascript/TypescriptReact etc.)
Proficiency with RESTful APIs and server-side development.
Strong experience with designing and implementing scalable and high-performance systems.
Proficiency with databases including schema design query optimization and performance tuning.
Proficiency with continuous integration and deployment (CI/CD) tools.
Demonstrated ability to lead technical discussions and provide guidance to team members.
Proficiency with version control systems preferably Git 3
Proficiency with Agile methodologies such as Scrum or Kanban.
Proficiency with unit testing working experience with integration and verification testing.
Understanding of backend performance optimization and best coding practices.
Strong communication and collaboration skills with the ability to work effectively across teams.
Proficiency with Linux.

Strong plus if you:

Has experience in electrical engineering.
Experience with full-stack firmware development and board bring up.
Experience working within regulated industries (FDA).
Working knowledge of data security and privacy standards such as HIPAA and GDPR.

Interview Process

Our interview processes my differ slightly from role-to-role; however most of our interviews will follow a similar pattern:

- Recruiter Interview

- Hiring Manager interview

- Technical Interview

- On-site Interview

- Decision

We are an early-stage company and may change our interview process from time-to-time but our hope is everyone who interviews with us has a positive experience even if an offer isnt presented.

Benefits

Excellent Medical/Dental Benefits

- 95% medical benefit premiums paid by Fluxergy and covers employee partner and dependents

- 100% dental and vision premiums paid for employee partner and dependents

- 100% Life Insurance premiums paid for the employee

Work - Life Balance Minded Time Off

- 15 paid vacation days

- 2-week paid winter break

- 7 company paid holidays

- 5 paid sick days

A Work Culture Which Believes in Promoting from Within

- Wear lots of hats / accelerate your career growth!

- We are a flat organization by design lots of visibility!

- Many of our current leaders started their career with Fluxergy!

Salary Range: $00/yr

Additional Information

Fluxergy is an Equal Opportunity Employer and is committed to building an inclusive workplace. Qualified applicants will receive consideration for employment without regard to any protected characteristic under applicable federal state or local law.

If you require a reasonable accommodation during the application or interview process please let us know at any point during the hiring process.

Fluxergy participates in EVerify. Employment eligibility will be verified after hire in accordance with federal law.

Fluxergy is committed to protecting your personal data. Please review our Privacy Policy.

Required Experience:

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