Senior Full Stack Developer Jobs in Castro Valley, CA

Abbott is a global healthcare leader that helps people live more fully at all stages of life. Our portfolio of life-changing technologies spans the spectrum of healthcare, with leading businesses and products in diagnostics, medical devices, nutritionals and branded generic medicines. Our 115,000 colleagues serve people in more than 160 countries.JOB DESCRIPTION:

At Lingo, we're building a groundbreaking health platform that combines continuous biosensor data, real-time analytics, and personalized insights to help people live fuller, longer, and healthier lives. Our systems ingest millions of sensor readings daily, powering experiences for consumers and partners worldwide, with the reliability and scalability of cloud-native, enterprise-grade platforms.

Working at Abbott

At Abbott, you can do work that matters, grow, and learn, care for yourself and your family, be your true self, and live a full life. You'll also have access to:

• Career development with an international company where you can grow the career you dream of.

• Employees can qualify forfree medical coverage in ourHealth Investment Plan (HIP) PPOmedical plan in the next calendar year.

• An excellent retirement savings plan with a high employer contribution.

• Tuition reimbursement, the Freedom 2 Save student debt program, and FreeU education benefit - an affordable and convenient path to getting a bachelor's degree.

• A company recognized as a great place to work in dozens of countries worldwide and named one of the most admired companies in the world by Fortune.

• A company that is recognized as one of the best big companies to work for as well as the best place to work for diversity, working mothers, female executives, and scientists.

THE OPPORTUNITY

This Senior Full Stack Engineer position can work out of Alameda, CA location.

We are seeking a Senior Full Stack Engineer with strong hands-on technical expertise and the ability to lead and mentor engineers. The ideal candidate is passionate about building scalable, high-performance applications, contributing to architectural decisions, and solving complex technical challenges. In this role, you will help design, develop, and optimize cloud-based applications and infrastructure, ensuring reliability, scalability, performance, and cost efficiency. You will collaborate with cross-functional teams, drive continuous improvement initiatives, and champion engineering best practices that support operational excellence.

What You'll Work On

• Design and architect scalable features for our Direct-to-Consumer e-commerce platform built on Next.js and Azure

• Own critical systems including payment processing, CMS integration, authentication, and commerce workflows

• Lead technical initiatives from design through deployment, ensuring performance, security, and reliability

• Build and optimize our TypeScript monorepo using Turborepo, balancing shared code with application independence

• Drive integration strategy for third-party platforms including CommerceTools, Contentful, Auth0, Braze, and payment gateways

• Establish engineering standards and best practices across testing, monitoring, and deployment

• Mentor mid-level and junior engineers through code reviews, pair programming, and technical guidance

• Collaborate with Product, Design, and cross-functional stakeholders to translate business requirements into technical solutions

• Optimize application performance including Core Web Vitals, bundle size, and serverless function efficiency

• Contribute to architectural decisions that impact the scalability and maintainability of the platform

• Champion accessibility, internationalization, and compliance requirements (GDPR, PCI-DSS)

Qualifications

• Bachelor's degree in software engineering or a related field, or equivalent practical experience

• 6+ years of professional software engineering experience, with at least 3 years in full-stack roles

• Expert-level proficiency in TypeScript with deep understanding of advanced types, generics, and type safety patterns

• Extensive experience building production applications with React and Next.js (App Router, Server Components, API routes)

• Proven track record building and scaling e-commerce platforms with hands-on experience in Direct-to-Consumer (DTC) business models

• Strong understanding of payment systems, including third-party integrations, fraud prevention, and PCI compliance

• Experience architecting and maintaining serverless applications (Azure Functions, AWS Lambda, or similar)

• Deep knowledge of web architecture, performance optimization, and scalable infrastructure

• Experience with headless CMS platforms and content modeling

• Proficiency with modern testing strategies including unit, integration, and E2E testing

• Strong communication skills and ability to influence technical decisions across teams

• Experience mentoring engineers and elevating team technical capabilities

Preferred Qualifications

• Experience with Azure ecosystem (Functions, Service Bus, Blob Storage, Application Insights) or equivalent AWS services

• Hands-on experience with CommerceTools or similar commerce platforms

• Deep knowledge of Next.js including streaming, caching strategies, and edge runtime optimization

• Experience with monorepo tools like Turborepo

• Knowledge of authentication protocols (OAuth 2.0, SAML, JWT) and identity providers like Auth0

• Experience with error monitoring tools such as Sentry or New Relic

• Understanding of CDN strategies, edge computing, and global content delivery

• Experience with Docker, containerization, and CI/CD pipelines

• Contributions to open source or demonstrated thought leadership in the web development community

Apply Now

Learn more about our health and wellness benefits, which provide the security to help you and your family live full lives: www.abbottbenefits.com

Follow your career aspirations to Abbott for diverse opportunities with a company that can help you build your future and live your best life. Abbott is an Equal Opportunity Employer, committed to employee diversity.

Connect with us at www.abbott.com, on Facebook at www.facebook.com/Abbott and on Twitter @AbbottNews and @AbbottGlobal

#software

The base pay for this position is

$100,000.00 - $200,000.00

In specific locations, the pay range may vary from the range posted.

JOB FAMILY:Product DevelopmentDIVISION:LNGO LingoLOCATION:United States > Alameda : 2901 Harbor Bay ParkwayADDITIONAL LOCATIONS:WORK SHIFT:StandardTRAVEL:Yes, 5 % of the TimeMEDICAL SURVEILLANCE:Not ApplicableSIGNIFICANT WORK ACTIVITIES:Continuous sitting for prolonged periods (more than 2 consecutive hours in an 8 hour day), Keyboard use (greater or equal to 50% of the workday)Abbott is an Equal Opportunity Employer of Minorities/Women/Individuals with Disabilities/Protected Veterans.EEO is the Law link - English: http://webstorage.abbott.com/common/External/EEO_English.pdfEEO is the Law link - Espanol: http://webstorage.abbott.com/common/External/EEO_Spanish.pdf