Senior Software Engineer

LifeCare Advocates • Newton, MA

6d • $160,000 - $175,000

About The Position

We’re an early-stage startup building the next generation of scalable, intelligent applications at e-commerce-level scale, with AI-augmented development speed and product-driven engineering excellence. As one of the first core engineers, you’ll have substantial ownership and influence over the product’s architecture, technology direction, and how the company scales its systems and engineering team. The role suits someone who thrives in a fast-moving environment, keeps learning, and enjoys turning ideas into impact.

You’ll build end-to-end capabilities across a React frontend, Java-based backend, and AWS infrastructure; design scalable systems for high user traffic and complex data flows; and use AI tools to accelerate writing, testing, and shipping code. You’ll work closely with the CTO, founders, and product team, drive technical excellence, and help shape the engineering culture through mentorship, tooling, and processes that balance speed with quality.

The expected annual pay range is $160,000–$175,000, including bonus and equity. Actual compensation may vary based on factors such as licensure, years of experience, and other relevant qualifications.

Requirements

• Strong full-stack experience with Java, such as Spring Boot, Micronaut, or equivalent, and React or similar frontend frameworks.
• Deep understanding of distributed-systems scalability, performance optimization, caching, and database design.
• Hands-on AWS experience with services such as EC2, Lambda, DynamoDB, and S3, along with DevOps best practices.
• Self-starter who thrives with autonomy, takes ownership of outcomes, and moves quickly.
• Curiosity and a growth mindset, with the ability to experiment, learn quickly, and adapt technologies as the product evolves.
• Expertise in AI-assisted development and using productivity-enhancing tools.

Responsibilities

• Design and build end-to-end features across the stack, including React frontend, Java-based backend, and AWS infrastructure.
• Architect scalable systems capable of handling high user traffic and complex data flows comparable to e-commerce-scale applications.
• Use AI tools, including Claude Code, Copilot/Codex, and custom LLM integrations, to write, test, and ship code more efficiently.
• Collaborate closely with the CTO, founders, and product team to define and deliver new capabilities.
• Improve code quality, scalability, observability, and developer velocity.
• Help shape engineering culture through mentorship, tooling choices, and processes that balance speed and quality.

Benefits

• Competitive compensation including equity.
• Opportunity to work directly with the CTO and influence company direction.
• Opportunity to help shape product and technology strategy as an early engineer.
• Collaborative culture with transparent communication, fast iteration, and shared ownership.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed