Senior Backend Engineer - Kotlin (all genders)

Journi

Austria · Full-time · Not Applicable

We love the magic of memory keeping

At Journi, we help over 10 million users turn their favorite moments into beautifully designed Photo Books and Prints. Our smart AI makes the process fast, simple, and joyful.

Now we're expanding into new territory, building a new product experience from the ground up. We're looking for a Senior Backend Engineer who wants to be part of a small, high-impact team shaping something new from day one.

🚀 What You'll Do

Develop the core of our new storytelling app, written in Kotlin, which enables our customers to create personalized print products with minimal effort
Be involved in the creation of our new app from the ground up, playing a key role in defining our architecture and scaling strategy
Collaborate with frontend colleagues, product designers and managers to help improve our products by designing and developing new features and REST APIs
Improve our architecture to help us scale with the growing demand
Proactively identify and communicate improvements in your own and your teams work
Give and receive feedback, criticize constructively and foster an environment for constant improvement
Share your expertise as a Senior Backend Engineer with the Journi Team

🎒 Your bag of tricks

7+ years of development experience developing Backend applications (links to projects or GitHub are welcome!)
Strong knowledge in any JVM based language (Either in Kotlin OR Java. If you do not have experience with Kotlin: You should be willing and interested in learning Kotlin)
Experience developing and designing REST APIs
You know how to write automated unit with their respective mocks and integration tests
Experience working with any SQL database (MySQL, PostgreSQL, MariaDB) and any NoSQL database (Redis, AWS DynamoDB, MongoDB)
You have strong communication, documentation and collaboration skills
You are a self-starter with a strong ‘hands-on’ mentality & passion for solving problems
You are comfortable working in an Agile, fast changing environment
You work efficiently, prioritize workloads, and meet critical project deadlines
You are constantly learning, asking for feedback, and self-motivated
You are permitted to work in the EU/Austria (OR have a degree in Computer Science which is required to apply for an Austrian work permit)
You are able to relocate to / based in Vienna - the world’s most liveable city!

🔥 Nice-to-haves

Experience with the following technologies: PostgreSQL, Redis, Docker, AWS (S3, SQS, ECS, ECR, SES, RDS, CloudWatch, ElasticCache, CloudFront), GitLab, Datadog
Experience working with statistical methods or machine learning algorithms
Experience with working on a microservice infrastructure
Experience working with cross-functional teams
CI/CD experience
Kotlin experience (Coroutines, Ktor, familiarity with KMP)

✨ What We Offer

A happy team makes for a happy workplace. We wouldn’t be able to do what we do without our team, and that’s why we offer:

A fair annual gross salary starting from € 76.000. Our final offer depends on your experience and qualifications.

Plus, a Bunch Of Awesome Social Benefits, Such As

Vacation goals: 25 days off per year, plus 1 extra day for every year you stick around (up to 5 extra days!)
Work your way: enjoy a hybrid working model with 40% home office days and flexible hours (core hours: 10am-4pm Mo-Th; and 10am-2pm Fri)
Daily fuel: breakfast, Italian-style coffee, tea, and fresh daily lunches in our in-house eatery, with options for most dietary preferences
Go places: we reimburse your public transport card for Vienna
Team first: join our yearly team-building Journi to exciting destinations
Mac your life easier: with a company MacBook, also available for personal use
Boost your German: weekly in-house lessons in small groups
Special treatment: enjoy a premium membership on all Journi products
and more!

📫 What To Expect After You Apply

Intro call with the Talent Acquisition Team (30 m)
General interview (45 m)
Technical interview (1,5 h)
Final interview with the Leadership team (1 h)

About Us

Everyone is welcome at Journi

No matter your background, identity, or story, if you’re exceptional at what you do, there’s a place for you here. We believe that an inclusive team is a stronger team, and we want everyone to feel respected and understood from the moment they join us.

Turning digital memories into something you can hold

Our goal is simple: to make it effortless for you to preserve the memories you cherish. By combining smart technology with a love for design, we turn "photo chaos" into high-quality keepsakes in seconds. You capture the moments; we help you keep them forever.

A global team with heart

More than 10 million people around the world already use Journi to create their Photo Books, and we’re just getting started. We’re a global team of 100+ people united in Vienna, thinking big and building with care. We work hard, but we never take ourselves too seriously. We keep things informal, friendly, and always on our users' side.

If you’re excited to solve meaningful challenges and shape a product loved by millions, we’d love to hear from you. 🌟

Key Skills

Ranked by relevance

kotlin postgresql redis aws machine learning storytelling dynamodb mariadb docker gitlab nosql mysql java sql jvm sqs ecs ai s3

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