Tenjin manages mobile growth infrastructure for our clients by organizing, analyzing, and securing the rush of data generated by mobile devices and marketing channels. We're reshaping mobile marketing by breaking down data silos and building an integrated data platform to replace the detached services in use today.

The team at Tenjin is small but growing. We feel passionately about doing work that matters. Working here will provide you with opportunities for growth and leadership at the intersection of big data and mobile marketing. If you’re looking to work in an environment with smart, talented coworkers who value good people and good ideas, we’d like to talk to you. Self-directed team players will enjoy the balance of flexibility and collaboration that guides our culture.

Tenjin is remote-friendly with people in San Francisco, Atlanta, Berlin, and Tokyo.

Skills: Android, Go, iOS, Java, Kotlin, Objective-C, Ruby, Swift, Unity

Description

We’re looking for a Senior Mobile SDK Engineer to develop and maintain our iOS, Android, Unity SDKs and other plugins. Our ideal candidate is comfortable developing and releasing SDKs, writing documentation, and helping developers work through integration challenges.

Team, Culture, and Product

We're a small engineering team looking to grow. We're a remote-only organization with most of the engineering team working from US timezones. We aim to help mobile app developers make data-driven decisions about their marketing in a secure, privacy-centric, user-friendly way. We encourage flexibility in working locations and hours but also make sure we all overlap at least briefly for a bit each day.

Technology

Our mobile SDKs are little pieces of our tech stack that we give to customers to implement in their mobile applications. They’re written in Objective-C/Swift (iOS), Java/Kotlin (Android), C Sharp (Unity), TypeScript (React Native and Ionic) and Dart (Flutter).

These mobile SDKs send data to our web services, which are written in Ruby or Go and run on AWS, processing over 1M data points per minute. We process data in a variety of languages and frameworks (including Ruby, Go, Python, and Java) and present it to customers in a Ruby on Rails web application with a ReactJS frontend.

Responsibilities

Develop and maintain our iOS, Android, Unity, React Native, Flutter and Ionic SDKs
Build and maintain integrations between our SDKs and popular mobile advertising SDKs, such as AdMob, Applovin MAX, ironSource
Maintain scalable processes for testing and releasing new SDK builds
Publish documentation for our SDKs
Assist customers who are running into SDK integration issues or bugs
Keep our SDKs up-to-date with the latest Android and iOS changes

Requirements

Experience with Swift, Objective-C, Kotlin, Java, C Sharp, TypeScript/JavaScript, Dart, or particularly deep experience with at least two of them
Experience building and consuming REST APIs and clients
Familiarity with Git and hosting platforms like GitHub
Excellent organization and communication skills
An appetite for learning, problem-solving, and contributing to a dynamic team environment

Nice-to-haves

Experience with Ruby or Go
Experience with mobile marketing
Experience developing mobile applications

Benefits

Annual budget for learning and personal development (conferences, books, classes, etc)
Budget for fitness and well-being activities (gym memberships, fitness equipment)
Unlimited vacation days and a vacation stipend to make sure you take time off (we recommend at least 20 days off per year)
Team off-sites and other get-togethers
Health Care Plan (Medical, Dental & Vision)
Family Leave (Maternity, Paternity)

Front-End: Ruby on Rails, React

Back-End: Ruby, Java, Go, Flink, Kafka

Infrastructure: AWS (Redshift, Kinesis, DynamoDB, SQS), Postgres, Redis, Kubernetes (EKS)