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Principal Software Engineer

Principal Software Engineer

Life Line ScreeningAustin, TX, US
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Principal Software Engineer  About the Role  Life Line Screening is seeking a confident and visionary Principal Engineer – Application & Cloud Architecture to shape the future of technology at Life Line Screening.

This role is ideal for a full-stack engineer with deep experience architecting cloud-first solutions in AWS, a passion for solving customer pain points, and a drive to build scalable, modern applications.

You’ll lead the transformation of our core platform, guiding multiple engineering teams as they build and maintain the applications that power Life Line Screening’s digital experiences—from customer interactions to clinical and operational systems.

You’ll present strategic recommendations to executive leadership and ensure our platform is built for scale, security, and innovation.  We’re looking for someone with conviction—clear technical vision, confident decision-making, and the ability to inspire teams toward bold, forward-thinking solutions.

You thrive in ambiguity, take initiative, and bring creative solutions to complex challenges.

You’re resourceful, collaborative, energized by change and thrive in a culture built on agility, experimentation, and big ideas.  At Life Line Screening, we’re more than a technology company—we’re a mission-driven organization making a measurable impact on public health.

As the nation’s largest mobile preventive health provider, we screen over 600,000 people annually at more than 14,000 community-based events.

Our innovative approach bridges the gap between under-recognized disease and clinical care, and our growing role in clinical trials and research is helping advance medical science.

If you thrive in a collaborative culture and want to help millions of people gain insight into their health, this is the place for you.  Key Responsibilities  Application Architecture & Development Leadership  Define and drive backend architecture using patterns such as event-sourced systems, event stores, and domain-driven design to ensure traceability, modularity, and scalability.  Architect event-driven systems using Amazon EventBridge to enable decoupled service communication and real-time responsiveness across distributed applications.  Lead full-stack development with TypeScript, Node.js, and React, emphasizing modularity and performance.  Design and deliver production-quality APIs and microservices with a customer-first mindset ensuring maintainability, seamless integration, and reliability.  Provide expert guidance on emerging security technologies and ensure compliance through secure design.  Champion agile practices and a culture of continuous improvement.  Cloud Strategy & Enablement  Lead AWS cloud engineering from design through delivery, aligning infrastructure with product and business needs.  Build and evolve cloud infrastructure to support scalability, reliability, and performance across distributed systems.  Engineer immutable infrastructure using IaC and CI / CD pipelines, accelerating platform maturity through reusable components, prototypes, and cloud-native design patterns.  Collaboration, Mentorship & Innovation  Serve as a lead engineer and strategic technical consultant, partnering with stakeholders across the organization to align cloud transformation efforts with business goals.  Contribute to technical documentation, knowledge sharing, and proof-of-concept development.  Champion the adoption of AI-assisted development tools (e.g., GitHub Copilot) to enhance engineering workflows, code quality, and team productivity through responsible and effective integration.  Continuously explore emerging technologies and recommend adoption where appropriate.  Technical Skills  Languages & Frameworks – JavaScript, TypeScript, Node.js, React, GraphQL  Cloud & Infrastructure – AWS, AWS EventBridge, AWS Lambda, Amazon API Gateway, Amazon SQS / SNS, Serverless architecture, Cloud-native design patterns  Architecture & APIs – Apollo GraphQL Federation, Microservices, Event-sourced systems and event stores, Domain-driven design, RESTful APIs  DevOps & CI / CD – Infrastructure as Code, AWS CDK, CI / CD pipelines, GitHub Actions  AI & Innovation – GitHub Copilot, AI-augmented development, Prompt engineering  Observability & Monitoring – AWS CloudWatch, AWS X-Ray, Logging and alerting best practices   Qualifications  10+ years of software development experience, including 5+ years in senior technical leadership roles  Proven success architecting and developing backend systems for high-volume, distributed applications  Deep expertise in AWS cloud architecture, including hands-on experience with AWS CDK, serverless design, and cloud-native patterns  Experience designing and implementing event-sourced systems and event stores for traceability and auditability  Strong background in CI / CD pipelines, Infrastructure as Code, and DevOps best practices  Proficiency in JavaScript / TypeScript, Node.js, React, and GraphQL  Familiarity with Apollo Federation, domain-driven design and modular front-end architectures  Hands-on experience with observability tools such as AWS CloudWatch and AWS X-Ray, with a focus on reliability and incident response  Demonstrated ability to mentor engineers, lead cross-functional initiatives, and drive technical strategy  Strong communication and stakeholder management skills  Advocacy for AI-assisted engineering practices, driving adoption and responsible integration  Experience in startup or high-growth tech environments preferred  Life Line Screening is proud to be an equal opportunity employer.

Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age disability, protected veteran status, or other characteristics protected by law.

Life Line Screening will only employ those who are legally authorized to work in the United States for this opening.

Any offer of employment is conditional upon the successful completion of a background check and drug screen.

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Principal Software Engineer • Austin, TX, US