Backend Engineer

Keepsafe is a leader in the consumer privacy space with over 100 million users globally on iOS and Android trusting us. Our flagship photo vault reflects our belief that protecting personal pictures, videos, and important documents on your phone should be simple and foolproof. This year, we’ll develop and launch new offerings allowing people to save and share their data without sacrificing control.

Our founders are serial entrepreneurs from Germany who appreciate ambitious and independent thinking, precision, beautiful code, and above all else privacy! We are a fully-remote team with monthly in-person meet-ups. Onboarding will take place in-person in the San Francisco Bay Area. We’re looking for exceptional engineers to define and build the next generation of our consumer privacy mobile product.

As an engineer at Keepsafe, you’ll serve millions of people who use our apps daily. You’ll have the opportunity to carry a lot of responsibility and have a direct impact on the company. You’ll work autonomously and design and own a significant part of our codebase. You’ll help the team scale, develop core pieces of infrastructure, and solve hard problems.

Our engineering team is at the forefront of security, smart encryption, key management, data transcoding, secure and fast cloud sync, and back-end custom analytics development for the future. You’ll collaborate directly with our product and design teams and work with your peers to make big decisions about how things get done.

We are proud to have open sourced some of our work on our Github page. Some selected projects we're proud of are:

• aiohttp, a HTTP Client/Server for Python's asyncio

• ReLinker, a robust native library loader for Android

• Tap Target View , an implementation of tap targets from the Material Design guidelines for feature discovery

• dexcount-gradle-plugin, for showing dex method counts per app build

• android-resource-remover, for removing unused resources from your Android project

• Multi State Animation , Android library to create complex multi-state animations

• Switchboard, a mobile A/B testing framework

Our Tech Stack

Android - Kotlin

iOS - Swift 5

Python
3.x

AWS

DynamoDB

Postgres

Couchbase Server/Lite

About Keepsafe

Keepsafe protects your personal space. Our mission is to make privacy and security simple. In an era that’s overvalued sharing, privacy is the new freedom.

Our flagship product, Keepsafe Photo Vault, has been downloaded by close to 100 million people all across the globe and is a leader in the consumer app subscription business.

• Great software engineering skills: code speaks stronger than degrees

• Experience developing in Python 3.x

• Strong knowledge of Dev Ops fundamentals

• Appetite for fast product iteration, shipping high quality apps

• Mindset for independent work and ownership of the apps

• Experience or interest in cryptography and security engineering

• Minimum 2 years of full-time related experience

Software Engineering Skills

• Proficiency in backend development using Python.

• Experience in designing and developing RESTful APIs.

• Knowledge of API gateways (AWS API Gateway, Nginx) and rate limiting, authentication, and caching strategies.

• Experience with mobile backend services that support iOS/Android clients (Couchbase Server/Gateway).

• Understanding of database design and optimization (Postgre

SQL, MySQL, Dynamo

DB, Redis,Couchbase).

• Familiarity with push notifications and real-time communication (Web Sockets, MQTT, Firebase Cloud Messaging).

• Ability to work with message queues and event-driven architecture (SQS, Pub/Sub).

• Experience integrating with third‑party APIs (payment gateways, social auth, analytics, etc.).

• Experience with frontend development (HTML, CSS, JS, Vue.js or other framework) and Zendesk Plugin architecture

Dev Ops Skills

• Proficiency in cloud platforms (AWS, GCP) and container orchestration (Kubernetes, Docker).

• Solid knowledge of scripting and automation (Python, Bash).

• Experience in monitoring, logging, and alerting (ELK, Datadog).

• Knowledge of networking, security best practices, and identity management (IAM, OAuth, SSO).

• Understanding of microservices architectures and API management.

•…