Senior Java Developer Jobs in Reseda, CA (NOW HIRING)

We anticipate the application window for this opening will close on - 22 Sep 2026

At MiniMed, you can begin a lifelong career of exploration and innovation, while helping make a difference in the lives of people living with diabetes around the globe. You'll lead with purpose, breaking down barriers to innovation for a more connected, compassionate world.

About the RoleMiniMed is looking to hire a Sr Test Engineer who will be responsible for validating data ingestion, processing pipelines, APIs, and cloud-based applications. We need someone with strong experience in functional, integration, and end-to-end testing, with expertise in SQL, AWS, API testing, automation, and CI/CD. This individual will work closely with development and data engineering teams to ensure data accuracy, reliability, and system quality.

• Develop and execute functional, integration, regression, and end-to-end tests for medical device data processing and cloud applications.
• Validate data ingestion, transformation, processing, and synchronization across devices, APIs, databases, and cloud platforms.
• Test AWS-based data processing services and validate data accuracy, integrity, reliability, and traceability.
• Perform API testing using Postman and automate test scenarios using Java/Python.
• Validate real-time and asynchronous device data flows from medical devices to cloud systems.
• Automation expertise with Postman /Java / Python
• Strong Proficiency in Java / Python
• Analyze logs, processing failures, and data discrepancies to identify root causes.
• Collaborate with software, firmware, cloud, data engineering, and product teams to resolve defects.
• Ensure testing activities comply with applicable medical device quality, safety, security, and regulatory requirements.
• Prepare test plans, test cases, test reports, defect documentation, and traceability evidence.
• Support risk-based testing, release validation, and production readiness activities.
• Continuously improve test coverage, automation, data validation, and overall product quality.

Programming: Java, Python

API Testing & Automation: Postman, REST APIs, API Automation

Cloud: AWS

Data & Database: SQL, Data Validation, Data Ingestion, Data Transformation, Data Processing

Required Qualifications

• Bachelor's degree with a minimum of 4 years of relevant experience; or Master's degree with a minimum of 2 years of relevant experience; or PhD with 0 years of relevant experience.
• Strong programming experience in Java.
• Hands-on experience with automation tools and frameworks such as Postman / Ready API
• Strong knowledge in using AI tools.
• Experience testing across application layers, including UI, services, APIs, and backend components.

Preferred Qualifications

• Experience as a Java Developer or Test Automation Engineer.
• Experience working in the medical device domain or other regulated environments.n.
• Ability to programmatically test, debug, and optimize code and automated scripts.

Key Competencies

• Strong problem-solving and analytical skills.
• Effective written and verbal communication.
• Attention to detail and commitment to quality.
• Critical thinking, creativity, and technical curiosity.
• Ability to collaborate effectively with cross-functional teams.

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Physical Job Requirements

The above statements are intended to describe the general nature and level of work being performed by employees assigned to this position, but they are not an exhaustive list of all the required responsibilities and skills of this position.

The physical demands described within the Responsibilities section of this job description are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. For Office Roles: While performing the duties of this job, the employee is regularly required to be independently mobile. The employee is also required to interact with a computer and communicate with peers and co-workers. Contact your manager or local HR to understand the Work Conditions and Physical requirements that may be specific to each role.

Benefits & Compensation

MiniMed offers a competitive salary and flexible benefits package

At MiniMed, we put people first. A commitment to our employees lives at the core of our values: We recognize their contributions. They share in the success they help create. We offer a wide range of benefits, resources, and competitive compensation plans designed to support you at every stage of your career and life.

Salary ranges for U.S (excl. PR) locations (USD):$87,000.00 - $149,000.00

For roleslocatedin California, Seattle WA, Washington DC, Boston MA, and New York City, the salary rangeis$87,000.00 - $118,000.00.

Actual compensation may vary based on factors including experience, education, certifications, skills, market conditions, internal equity, and geographic location. Compensation and benefits informationpertainssolely to candidates hired within the United States (local market compensation and benefits will apply for others).

This position is eligible for a short-term incentive called the Short Term Incentive (STI).

At MiniMed, we are committed to supporting the well-being and financial security of our employees. Regular employees working 20 or more hours per week are eligible for a robust benefits package, including health, dental, and vision insurance, as well as access to a Health Savings Account, Healthcare Flexible Spending Account, life insurance, long-term disability leave, and a dependent daycare spending account. In addition, all regular employees enjoy incentive plans, a 401(k) plan with company match, short-term disability coverage, paid time off and holidays, participation in our Employee Stock Purchase Plan, and access to our Employee Assistance Program. Eligible employees may also benefit from our Non-qualified Retirement Plan Supplement and Capital Accumulation Plan, subject to IRS minimum earnings requirements. Please note that "regular employees" refers to those who are not temporary staff, such as interns, and some benefits may not apply to employees in Puerto Rico.

For further details about our comprehensive benefits, we encourage you to visit the link below.

MiniMed Benefits Overview

About MiniMed

MiniMed is a full-stack insulin delivery company dedicated to supporting people living with diabetes through every step of their journey - when and how they need it. For more than 40 years, we've been committed to redefining what's possible: intelligent dosing systems designed for real life, predictive insights that stay a step ahead, and always on support when it's needed most. At the heart of everything we do is a simple Mission: to make every day a better day for people with diabetes.

Learn more about our business, and our mission here.

It is the policy of MiniMed to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, familial status, membership or activity in a local human rights commission, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state, or local law. In addition, MiniMed will provide reasonable accommodations for qualified individuals with disabilities.

If you are applying to perform work for MiniMed in any position which will involve performing at least two (2) hours of work on average each week within the unincorporated areas of Los Angeles County, you can find here a list of all material job duties of the specific job position which MiniMed reasonably believes that criminal history may have a direct, adverse and negative relationship potentially resulting in the withdrawal of a conditional offer of employment. MiniMed will consider for employment qualified job applicants with arrest or conviction records in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.