Senior Full Stack Developer Jobs in Winchester, CA

Why We Are - Who We Are: About FFF Enterprises
What We Do - https://www.fffenterprises.com/company/what-we-do.html
Position Summary
The Senior Full-Stack Engineer is responsible for designing, developing, and supporting InCircle's cloud-based, multi-tenant SaaS platform. This role works across the full technology stack, including user interface, API, workflow, integration, and data layers, to deliver secure, scalable, reliable, and compliant digital health solutions.
This position partners with Product, Clinical, Data, Security, Quality Assurance, and Engineering teams to translate complex business and clinical requirements into effective technical solutions. The role also contributes to architecture design, engineering standards, code quality, system performance, platform reliability, and continuous improvement.
This is a hands-on senior engineering role requiring strong technical judgment, full-stack development expertise, and experience building enterprise-grade SaaS solutions in regulated healthcare, life sciences, or similarly complex environments.
Essential Functions and Duties
Application Development & Platform Engineering:

• Design, develop, test, and support full-stack applications across user interface, API, workflow, integration, and data layers.=
• Build modular, scalable, multi-tenant SaaS solutions using sound architecture patterns, reusable components, and enterprise design practices.
• Develop RESTful APIs, micro-services, service contracts, and event-driven integrations to support platform functionality and system interoperability.
• Translate business and technical requirements into scalable, maintainable software solutions.

Data Architecture & Systems Integration:

• Design, maintain, and optimize relational and NoSQL databases for scalability, performance, reliability, and data integrity.
• Implement workflow orchestration, business process automation, and integrations across enterprise platforms and data ecosystems.
• Collaborate on data models, API design, service contracts, and integration patterns.

DevOps, Reliability & Production Readiness:

• Implement and support CI/CD pipelines, including automated build, testing, deployment, and release processes.
• Apply DevOps best practices, including monitoring, logging, observability, troubleshooting, and operational readiness.
• Support system reliability, production support, performance improvement, and ongoing platform stability.

Security, Compliance & Quality:

• Build and maintain systems that support PHI handling and healthcare regulatory requirements.
• Implement authentication, authorization, auditing, encryption, and secure development practices.
• Ensure adherence to 21 CFR Part 11, enterprise compliance standards, coding standards, testing strategies, and code review practices.
• Identify opportunities to reduce technical debt and improve platform quality.

Technical Leadership & Cross-Functional Collaboration:

• Contribute to architecture design, technical roadmap planning, and engineering standards.
• Partner with Product, Clinical, QA, Data, and Engineering stakeholders to align technical solutions with business and platform needs.
• Mentor engineers, share technical knowledge, and help strengthen engineering practices and team capability.

General Responsibilities:

• Adheres specifically to all company policies and procedures, Federal and State regulations, and laws.
• Display dedication to position responsibilities and achieve assigned goals and objectives.
• Always represent the Company in a professional manner and appearance.
• Understand and internalize the Company's purpose,
• Display loyalty to the Company and its organizational values.
• Display enthusiasm and dedication to learning how to be more effective on the job and share knowledge with others.
• Work effectively with co-workers, internal and external customers and others by sharing ideas in a constructive and positive manner; listen to and objectively consider ideas and suggestions from others; keep commitments; keep others informed of work progress, timetables, and issues; address problems and issues constructively to find mutually acceptable and practical business solutions; address others by name, title, or other respectful identifier, and respect the diversity of our work force in actions, words, and deeds.
• Comply with the policies and procedures stated in the Injury and Illness Prevention Program by always working in a safe manner and immediately reporting any injury, safety hazard, or program violation.
• Ensure conduct is consistent with all Compliance Program Policies and procedures when engaging in any activity on behalf of the company. Immediately report any concerns or violations.
• Other duties as assigned.

Education, Knowledge, Skills, and Experience
Required Education:

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or equivalent education and experience.

Required Knowledge:

• Strong knowledge of full-stack application development across n-tier architectures.
• Knowledge of cloud-native application architecture, preferably using Azure services such as App Services, Functions, AKS, or related technologies.
• Understanding of multi-tenant SaaS architecture, modular design patterns, distributed systems, and event-driven design.
• Knowledge of RESTful API design standards; GraphQL knowledge is helpful but not required.
• Understanding of workflow engines, data pipelines, integration patterns, DevOps practices, and CI/CD automation.

Preferred Knowledge:

• Knowledge of cloud-based SaaS platforms within the healthcare, medical, life sciences, or regulated technology industries.
• Knowledge of scalable, extensible subsystem design for commercial SaaS platforms.
• Understanding of enterprise-volume SaaS platform scaling, performance, reliability, and maintainability considerations.
• Familiarity with healthcare regulatory, PHI handling, or regulated software development environments.

Required Experience:

• At least seven (7) years of full-stack SaaS development experience; eleven years required for non-degreed candidates.
• Experience designing, developing, and deploying SaaS applications in a cloud environment, preferably Azure.
• Experience with backend development, frontend frameworks, database design, APIs, integrations, DevOps practices, and secure software development.

Preferred Experience:

• Ten years of progressive experience building modular, multi-tenant, scalable, extensible, and secure SaaS platforms.
• Experience with modern, cloud-scale CI/CD and DevOps practices.
• Experience defining architecture standards, driving technical decisions, owning code reviews, and supporting performance optimization.
• Experience working in healthcare, life sciences, or other regulated development environments.

Preferred Experience:

• Ten (10) years of progressive experience in building modular, multi-tenant, scalable, extensible & secure SaaS platforms.
• Experience in modern, cloud-scale CI/CD & Dev ops.
• Working knowledge of secure software development and security best practices.
• Experience in defining architecture standards.
• Experience driving technical decisions.
• Code review ownership and performance optimization.

• Required Skills:

• Proficiency with backend frameworks, preferably .NET or a comparable enterprise backend stack.
• Proficiency with modern frontend frameworks such as React, Angular, or similar technologies.
• Strong SQL, data modeling, database architecture, and performance optimization.
• Working knowledge of Azure cloud services and cloud-based SaaS deployment practices.
• Understanding of security, compliance, PHI handling, 21 CFR Part 11, and secure development practices.
• Ability to translate business and technical requirements into scalable, maintainable software solutions.

Preferred Skills:

• Familiarity with healthcare data interoperability standards such as FHIR or HL7.
• Ability to integrate with enterprise data platforms and broader data ecosystems.
• Ability to lead design reviews and contribute to technical standards.
• Ability to manage multiple competing priorities in a dynamic work environment.

Physical requirements
Vision, hearing, speech, movements requiring the use of wrists, hands and/or fingers. Must have the ability to view a computer screen for prolonged periods and the ability to sit for extended periods. Must have the ability to work the hours and days required to complete the essential functions of the position, as scheduled. The employee occasionally lifts to 20 lbs. and occasionally kneels and bends. Must have the ability to travel occasionally. Working condition include normal office setting.
Mental Demands
Learning, thinking, concentration and the ability to work under pressure, particularly during busy times. Must be able to pay close attention to detail and be able to work as a member of a team to ensure excellent customer service. Must have the ability to interact effectively with co-workers and customers, and exercise self-control and diplomacy in customer and employee relations' situations. Must have the ability to exercise discretion as well as appropriate judgments when necessary. Must be proactive in finding solutions.
Direct Reports
No
EEO Statement
FFF Enterprises and Nufactor are an equal opportunity employer and prohibits discrimination and harassment based on the following characteristics: race, color, religion, national origin, physical or mental disability, gender, age (40 years and over) qualified veteran and any other characteristic protected by state or federal anti-discrimination law covering employment. These categories are defined according to Government Code section 12920. The Company prohibits unlawful discrimination based on the perception that anyone has any of those characteristics or is associated with a person who has or is perceived as having any of those characteristics.
Acknowledgement
The above statements are intended to describe the general nature and level of work being performed by the incumbent assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties, and/or skills required of all personnel so classified.
The undersigned employee acknowledges receipt of the Job Description for the employee's position and understands the essential functions, responsibilities, and qualifications of the position. Furthermore, the employee acknowledges that this Job Description does not include all the essential functions of this position, and that these essential functions may change as deemed necessary by the manager.
To be considered for a position with FFF Enterprises, Inc, applicants must complete and sign the application.
Employee Benefits Available for FFF Enterprises Team Members
Employee benefits include:

• Medical Insurance
• Dental Insurance
• Vision Discount Program
• Vision Insurance Plan
• Health Savings Account (HSA)
• Flexible Spending Account (FSA)
• Dependent Care Flexible Spending Account
• Employee Assistance Program (EAP)
• Group Life and AD&D
• Voluntary Supplemental Life Insurance Plans
• Short Term Disability
• Long Term Disability Income Protection
• 401k Profit Sharing Retirement Plan - Discretionary Match
• Discretionary Bonus
• Supplemental Insurance Plans
• Prepaid Legal/Identity Theft Plan
• Paid Holidays/Vacation/Sick Days
  • Seven (7) Paid Holidays, Two (2) Week Vacation, Five (5) Sick Days, and One (1) Float Day for CA, NC, and TX
    All Other States Receive One Hundred Twenty (120) Hours of PTO
• Tuition Reimbursement Program
• Notary Services
• Employee Referral Bonus
• Vendor Discount Programs
• Corporate Individual Travel Program

(Note: We comply with the ADA and consider reasonable accommodation measures that may be necessary for eligible applicants/employees to perform essential functions. Hire may be subject to passing a medical examination, and to skill and agility tests.)