Backend Engineer

Overview

On Site
$170,000 - $200,000
Full Time

Skills

back end
python
go
node.js
aws

Job Details

Job Title: Founding Backend Engineer Infrastructure for Social Impact | San Francisco, CA

Summary:
This isn t just about hiring a builder it s about recruiting an engineer ready to co-architect a platform that enables trust, action, and generosity at scale.

As the Founding Backend Engineer, you ll design and scale the systems behind a new social impact platform one engineered to support donors, nonprofits, and volunteers around the globe. You ll work directly with mission-driven founders, influence key architectural decisions, and help define how this system evolves for years to come.

This is a rare opportunity to lead from the ground up on a product with real-world impact blending purpose, scale, and deep technical challenge.

Responsibilities:

  • Architect, build, and maintain the core backend systems powering a trust-based giving platform

  • Make key decisions on infrastructure, backend frameworks, data flow, and service architecture

  • Design and implement secure, scalable APIs and data pipelines for various user types

  • Prioritize data privacy, platform reliability, and compliance with regulatory standards

  • Own CI/CD implementation, system observability, and DevOps readiness for fast iteration

  • Collaborate with product, design, and founding team to launch features and ship meaningfully

  • Help establish engineering culture, coding standards, and scalable documentation practices

Requirements:

  • 4+ years of experience building backend systems (startup or 0?1 experience preferred)

  • Strong command of one or more backend languages (Go, Python, Node.js, Java)

  • Deep understanding of system architecture, API design, and data modeling (SQL or NoSQL)

  • Hands-on experience with AWS, Google Cloud Platform, or Azure; Docker and Kubernetes; and microservices design

  • Commitment to clean, secure, and scalable code

  • Effective communicator and natural collaborator thrives in a fast-paced mission-driven team

Preferred Qualifications:

  • Experience as a founding engineer or early-stage technical lead

  • Familiarity with donor platforms, CRM, or nonprofit tech systems

  • Understanding of compliance standards such as PCI, SOC2, or KYC

  • Background in event-driven architecture or distributed systems

  • Leadership experience technical mentorship or team-building a plus

Education:
Bachelor s degree in Computer Science, Engineering, or related field preferred or equivalent experience

Location:
San Francisco, CA

Salary Range:
$170,000 $200,000 base + early-stage equity (DOE)

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About OSI Engineering, Inc.