Senior Infrastructure Engineer at Woz (YC W25)

San Francisco, California, United States -

Full Time

Start Date

Immediate

Expiry Date

10 Jan, 26

Salary

0.0

Posted On

12 Oct, 25

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Node.js, TypeScript, API Design, AWS, Docker, Infrastructure-as-Code, Linux, Shell Scripting, Networking, DevOps, CI/CD, PostgreSQL, Supabase, Serverless Architectures, AI/ML Infrastructure, SaaS Platforms, Monitoring

Industry

Description

About the role We are looking for an Infrastructure Software Engineer with 5+ years of experience to help design, build, and scale the systems that power our platform. This role is ideal for someone who thrives in fast-paced environments, enjoys building reliable infrastructure from the ground up, and takes full ownership of the software lifecycle from design and deployment to monitoring and optimization. You will focus on backend services, data models, APIs, and cloud infrastructure, ensuring our systems are secure, scalable, and observable. You’ll play a key role in shaping how code moves from development to production, improving deployment workflows, and building the tooling that keeps our platform fast and dependable. Responsibilities Develop and Maintain Scalable Applications: Design, build, and maintain robust web applications using modern front-end and back-end technologies. Architect Scalable Solutions: Contribute to the system architecture and make high-level design decisions. Architect Modular Infrastructure: Write code in an extremely modular way to all for reuse and scalable maintenance across multiple implementations. Collaborate Cross-Functionally: Work closely with product managers, designers, and other engineers to define, develop, and launch new features. Optimize Performance: Ensure applications are efficient, secure, and performant at scale. Stay Ahead of Trends: Continuously research and implement the latest industry best practices, tools, and technologies. Mentor & Guide: Provide technical guidance and mentorship to junior engineers. Requirements Education: Degree in Computer Science, Software Engineering, or a related field. Experience: 5+ years of hands-on experience in full-stack development. Backend & Cloud Engineering: Deep expertise with Node.js, TypeScript, and API design (RESTful & serverless). Strong experience architecting and deploying production systems on AWS (ECS, Lambda, CloudWatch, Route53, etc.). Proficiency with Docker containerization and infrastructure-as-code tools such as AWS CDK or CloudFormation. Strong understanding of Linux, shell scripting, and core networking concepts (DNS, VPC, load balancing, etc.). DevOps & CI/CD: Deep experience with Docker, GitHub, and CI/CD pipelines. Experience with deployment workflows, environment provisioning, and observability tooling. Database Knowledge: Experience with PostgreSQL, Supabase, and other databases. Bonus Skills Experience with serverless or event-driven architectures. Familiarity with AI/ML infrastructure or integrating LLMs in backend systems. Background building SaaS platforms with multi-tenant or microservice architectures. Exposure to monitoring, alerting, and performance tuning of distributed systems.

Responsibilities

The role involves designing, building, and maintaining scalable applications and infrastructure. You will also collaborate with cross-functional teams to define and launch new features while optimizing performance.