Founding Software Engineer - Backend and Infrastructure Job at YC Work at a Startup (San Francisco)

Founding Software Engineer - Data Platform

As the Founding Software Engineer on our Data Platform team at Arlo, you will bu...

Location

United States , New York City

Salary:

200000.00 - 220000.00 USD / Year

Arlo

Expiration Date

Until further notice

Requirements

3+ years of experience as a backend engineer, data engineer, or software engineer with exposure to data pipelines and large-scale infrastructure
Strong understanding of data structures, algorithms, and scalable system design
Demonstrated ability to design secure, robust, and scalable infrastructure for data and backend systems
Hands-on experience with big data tools (e.g., Spark) and pipeline orchestration platforms (e.g., Dagster, Airflow, Prefect)
Proficiency in a backend programming language like Python and solid SQL skills for querying and database design
Familiarity with cloud platforms (AWS, GCP, or Azure) and their data services

Job Responsibility

Design and build scalable data pipelines that process billions of healthcare claims records
Develop robust ETL workflows to ingest, normalize, and transform medical data from multiple sources
Create infrastructure for real-time ML inference serving hundreds of millions of predictions
Build developer tooling to accelerate the work of our data scientists and ML engineers
Architect and implement monitoring systems to ensure data quality and model performance
Optimize PySpark code for feature construction to improve performance and efficiency

What we offer

performance bonus
equity
High ownership
Join an important mission
Growth & expansion
Apply AI to a problem that matters
High pace, high collaboration

Fulltime

Founding Engineer

Valerie Health is the AI front office for independent provider groups. We are re...

Location

United States , San Francisco

Salary:

125000.00 - 275000.00 USD / Year

Valerie Health

Expiration Date

Until further notice

Requirements

1 - 10+ years of experience in software engineering, with a strong background in computer science
Previous experience in big tech or startups is a plus
Demonstrated experience in building end-to-end products
User-Focus: Deep empathy for users, with the ability to translate their needs into product features and prioritize effectively
Work as Craft: Interest in producing elegant, polished, and high-performance work, finding pride and joy in the details
Growth Mindset: Eagerness to learn new approaches, seek feedback, and continually improve skill sets
Strong Communicator: Clear and succinct in both written and verbal communication, capable of adjusting style for different audiences and conveying technical topics to non-technical stakeholders
Self-Starter & Adaptable: Proactively own projects from inception to completion, identify challenges, and offer solutions, thriving in a dynamic work environment

Job Responsibility

Collaborate closely with the rest of the team to shape product, business, and company direction. Help define and shape the culture of the company
Build a production-ready AI infrastructure, integrating and fine-tuning models across voice, text, and desktop agents. Build a reinforcement learning system with internal and external humans in the loop
Own end to end product surface areas that serve external and internal users. Build deeply empathetic and polished user experiences that raise the bar across the industry
Design, build and scale a HIPAA-compliant backend infrastructure that’s highly secure with strong availability and performance

What we offer

Offers Equity
Competitive salary, equity and benefits including medical, dental, vision, 401(k) and PTO

Fulltime

Founding Backend Engineer

As one of our first engineers, you’ll shape the technical foundation of Socratix...

Location

United States , Mountain View

Salary:

150000.00 - 200000.00 USD / Year

YC Work at a Startup

Expiration Date

Until further notice

Requirements

2–4 years of software engineering experience (CS degree or equivalent background)
Strong backend development skills with Python + FastAPI
Experience with cloud infrastructure (AWS) and API design
A 0 → 1 builder mindset — comfortable creating from scratch
Ability to thrive in fast-paced startup environments

Job Responsibility

Design and deliver production-grade AI agents
Work directly with founders on roadmap and strategy
Collaborate with enterprise and startup partners to deliver impact
Drive execution in a high-ownership, high-leverage role
Learn firsthand what it takes to build a rocket-ship startup

What we offer

Competitive salary and equity benchmarked to top tech companies
Paid meals during workdays
100% health, dental, and vision coverage
Hybrid schedule - in-office 3 days a week
Unlimited PTO

Fulltime

Software Engineer (Founding DevOps)

Highbeam is building the future of business banking and cash management. Our pla...

Location

United States; Canada , New York; Toronto

Salary:

160000.00 - 260000.00 USD / Year

Highbeam

Expiration Date

Until further notice

Requirements

4+ years of experience in DevOps, platform engineering, or backend infrastructure roles
Deep experience with GCP, Terraform, and CI/CD pipelines
Strong knowledge of observability tools (Datadog, Sentry, tracing, monitoring best practices)
Hands-on experience improving security in cloud platforms
Comfortable writing backend code
Familiar with Postgres tuning and optimization

Job Responsibility

Own and improve our GCP infrastructure (Pub/Sub, Cloud Tasks, Cloud Run, BigQuery, IAM)
Improve platform security, observability and reliability
Tackle tricky backend optimization and Postgres performance questions
Own and improve our CI/CD pipelines (faster builds, parallelized tests, incremental compilation)
Improve IntelliJ/Detekt setup and build a common dotfiles repo
Create and maintain our devtooling Dockerfiles
When capacity allows, contribute to the product backlog

What we offer

Offers Equity
Generous PTO
Comprehensive health & benefits package
Stipends for lunch, commute, wellness, and purchasing customer products
Yearly offsite

Fulltime

Founding AI Engineer

We’re hiring a Founding AI Engineer to lead the development of AI systems poweri...

Location

United States , New York

Salary:

160000.00 - 200000.00 USD / Year

Helpcare AI

Expiration Date

Until further notice

Requirements

3+ years of experience building production software systems
Experience building and shipping LLM-powered applications
Strong understanding of prompt design, model behavior, and evaluation techniques
Experience building RAG systems, embeddings pipelines, or retrieval architectures
Strong backend engineering skills (APIs, data pipelines, system design)
Ability to move quickly from prototype to production
Strong product intuition and desire to build user-facing AI experiences

Job Responsibility

Own the architecture and development of AI systems powering AI Allie
Build and ship LLM-powered product features used by hundreds of thousands of users
Design retrieval systems that ground model responses in financial data and internal knowledge
Develop evaluation frameworks to measure model quality, reasoning accuracy, and safety
Improve model performance, latency, and cost efficiency in production
Build infrastructure for prompt orchestration, memory, and contextual personalization
Design guardrails appropriate for financial products and regulated environments
Rapidly prototype and ship new AI-driven product capabilities

What we offer

Hybrid work environment: 4 days per week in our New York office
Work directly with the founding team
High ownership and the opportunity to shape AI at a rapidly growing fintech company

Fulltime