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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Engineer - **Company:** Ketryx - **Location:** Wien, Austria (Remote available) - **Experience:** Experienced - **Salary:** €70,000.0 - €90,000.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Amazon S3, Confluence, JIRA, Databases, Database Design, Software Debugging, Fault Tolerance, Github, PostgreSQL, Performance Tuning, Query Optimization, Redis, Next.js, TypeScript, Tailwind, ReactJS, Database Optimization, Technical Debt, Indexer, Backend, Kotlin, Amazon Relational Database Service, Slack, Low Latency, Playwright, Sentry, Figma, Graphql, Front End Software Development, Elastic Beanstalk, Cucumber (Software), Code Restructuring, Docker - **Published:** July 14, 2026 - **Apply:** https://www.adzuna.at/details/5725425312 ## About the Role You're passionate about software and making a real impact. You're curious, enjoy solving tough problems, and love the idea of working in a fast-moving environment where you can take initiative. You're comfortable collaborating in English with team members from different areas, and you take pride in owning projects from beginning to end. Above all, you're excited about using technology to improve patient outcomes., * 5+ years of experience working as a software engineer, with strong experience in backend development * Solid skills in TypeScript * Strong experience with PostgreSQL: schema design, query optimization, indexing, and performance tuning * Solid understanding of backend performance and maintainability, including refactoring and technical debt management * Comfortable collaborating across teams and participating in technical discussions and design reviews * Comfortable working in English and collaborating across teams Bonus Points * Experience with Prisma and Next.js * Experience with GraphQL (urql or Apollo) * Familiarity with AWS services like S3, RDS, and Elastic Beanstalk * Familiarity with Docker and Kubernetes in production or near-production environments. * Strong habits around testing (Jest, Cucumber, Playwright) * Experience working in regulated industries like healthcare or finance * Experience with Kotlin and Spring * An interest in mentoring and helping others grow Our Tech Stack Frontend: TypeScript, React, Next.js, Tailwind, JollyUI Backend: PostgreSQL, Redis, GraphQL (urql), Prisma Testing: Jest, Cucumber, Playwright Infrastructure: AWS (e.g. S3, RDS, Elastic Beanstalk), Sentry Collaboration: Slack, GitHub, Figma, Jira, Confluence ## Description Database Design Design and evolve PostgreSQL schemas, write efficient queries, apply indexing strategies, and help ensure the database remains performant and maintainable as the product grows. Backend Development Build new integrations between the Ketryx platform and other systems, APIs, and workflows. Contribute to improving latency, throughput, and fault tolerance across the backend stack. Maintainable Systems Write clean, well-tested code and contribute to standards around migrations, documentation, and testing. Help ensure the system remains easy to understand, debug, and extend. Operational Reliability Participate in monitoring, debugging, and incident response. Help identify performance bottlenecks and reliability issues, and contribute fixes and improvements. Collaboration Work closely with Product, Client Operations, Compliance, Security, and other engineers to deliver features that meet both business and regulatory requirements and resolve any technical challenges that come up ## Related Videos - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Stack Overflow: Community and AI](https://www.wearedevelopers.com/videos/600-stack-overflow-community-and-ai) - [Boost Productivity with AI: Figma & Playwright MCP Workflows - Aris Markogiannakis](https://www.wearedevelopers.com/videos/1768-boost-productivity-with-ai-figma-playwright-mcp-workflows-aris-markogiannakis) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [Cloud as the new mainframe: why the cloud hype does not reflect the dev reality](https://www.wearedevelopers.com/videos/797-cloud-as-the-new-mainframe-why-the-cloud-hype-does-not-reflect-the-dev-reality) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Software Developer Salary in Austria [2023]](https://www.wearedevelopers.com/magazine/213-software-developer-salary-in-austria-2023) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)