Working Student / Intern: Software Engineer (Frontend & Backend) (f/m/x)

Cologne, Germany (Hybrid)

Team: Engineering · Reports to: CTO · Format: Working Student (16–20h/week) or Internship (3–6 months)

Keep the world awake - build the platform thousands of DevOps teams rely on

ilert helps thousands of DevOps & IT teams detect, fix, and communicate incidents faster. When a critical system goes down, our platform is the "source of truth" — from the resilient backend that processes thousands of events per second to the fast, intuitive frontend engineers stare at under pressure.

We are looking for a Working Student or Intern who loves building software and doesn't want to be boxed into a single layer of the stack. Whether you lean frontend, backend, or full-stack, you'll ship production code that powers a mission-critical SaaS product. We match projects to your strengths and our business needs — and we're happy to help you grow in whichever direction excites you most.

Tasks

• Ship End-to-End Features: Build user-facing features with React and TypeScript, the backend APIs behind them, or both.
• Backend & Scale: Help design robust APIs and data pipelines in our backend stack (we mainly use Java and Rust) and work with distributed systems like Kafka and ClickHouse.
• Frontend & Craft: Contribute to our modular component library and help keep the UI fast, accessible, and rock-solid when customers need it most.
• Flexible Project Scope: From core alerting logic to integrations (Slack, MS Teams, Jira) to AI-powered SRE features — we'll match the work to your interests.
• Quality & Reliability: Write tests and care about clean, maintainable code on a platform where downtime isn't an option.

Requirements

• Current Student: Enrolled in Computer Science, Software Engineering, Informatics, or a related technical field.
• Coding Foundation: Hands-on experience with at least one part of our stack — React/TypeScript on the frontend and/or a backend language like Java, Go, Rust, Python, or Node.js.
• CS Fundamentals: A solid grasp of data structures, algorithms, and how web applications fit together (APIs, databases, Git).
• Engineering Mindset: You value clean, maintainable code and are eager to learn how a professional SaaS product is built, tested, and deployed at scale.
• Curiosity & Builder Mentality: Bonus points for side projects, open source, or anything you've built and shipped — backend, frontend, or AI.
• Language: Fluent English (our working language).

Benefits

• 🚀 High Impact: Your code helps engineers at companies worldwide stay calm and efficient during incidents.
• 🧭 Pick Your Path: Explore frontend, backend, or full-stack — and find what you love before you graduate.
• 🏡 Hybrid Freedom: Experience our beautiful office in Cologne Rheinauhafen (3 days/week) and work from home (2 days/week).
• 🕒 Student-Centric: Flexible hours that work around your lectures and exam periods.
• 🎓 Elite Mentorship: Work directly with experienced engineers who love to share what they know.
• 🌴 Focus Culture: We protect "maker time," favor async communication, and keep meeting overhead low.

We hire for talent and a "builder" mentality, not just a checklist. If you have a GitHub repo or a project you're proud of — a slick UI, a fast API, or an AI experiment that connects to the real world — we definitely want to see it!

Find more English Speaking Jobs in Germany on Arbeitnow

Position Details

• Job Title: Working Student / Intern: Software Engineer (Frontend & Backend) (f/m/x)
• Company / Organisation: ilert GmbH
• Location: Cologne
• Employment Type: Full-time
• Field / Industry: Software Development
• Work Arrangement: On-site or hybrid - Cologne

About This Opportunity

This full-time opportunity at ilert GmbH is an excellent opening for experienced professionals in the field of software engineering and technology. The role is structured around an on-site or hybrid environment based in Cologne and is designed for candidates who are ready to make a meaningful contribution from the moment they join.

Based in Cologne, this role offers the opportunity to collaborate closely with a local team in a structured professional environment. Candidates currently based in the area or open to relocation are strongly encouraged to apply.

Whether you are an established practitioner in software engineering and technology or a highly skilled professional looking for your next challenge, this Working Student / Intern: Software Engineer (Frontend & Backend) (f/m/x) role offers the platform to apply your expertise in a real-world, results-oriented environment. ilert GmbH is looking for a candidate who can hit the ground running and add genuine value to the team.

Who Should Apply

This role is ideal for candidates who have a solid background in software engineering and technology and a demonstrable track record of delivering high-quality results. You should possess analytical thinking, attention to technical detail, and a methodical approach to problem-solving. Experience working with modern development tools, version control systems, and cloud platforms will be an advantage, though a commitment to continuous learning and professional development is equally valued.

Beyond technical or domain expertise, ilert GmbH is looking for someone who communicates clearly, collaborates effectively with colleagues and stakeholders, and takes ownership of their work from start to finish. If you thrive in a professional environment and are passionate about the opportunity to build reliable, scalable, and high-performing digital products, we encourage you to apply.

Key Competencies for This Role

Successful candidates for the Working Student / Intern: Software Engineer (Frontend & Backend) (f/m/x) position at ilert GmbH will typically demonstrate the following core competencies:

• Domain expertise - a strong foundation of knowledge and hands-on experience in software engineering and technology
• Problem-solving ability - the capacity to identify challenges, think critically, and implement practical solutions efficiently
• Communication skills - clear and professional communication with colleagues, stakeholders, and partners at all levels
• Self-management - strong time management and the ability to prioritise a varied workload while meeting deadlines
• Team collaboration - a collaborative and supportive approach to working alongside colleagues across departments or locations
• Adaptability - the ability to respond positively to change and thrive in a dynamic, evolving work environment

How to Apply

To apply for this Working Student / Intern: Software Engineer (Frontend & Backend) (f/m/x) position at ilert GmbH, click the "Apply Now" button on this page. You will be taken directly to the official application page where you can complete and submit your application.

Before applying, please ensure that your CV or résumé is fully up to date and clearly highlights your experience and accomplishments in software engineering and technology. If a cover letter is included or requested, tailor it specifically to this role and explain how your background, skills, and goals align with what ilert GmbH is looking for in a Working Student / Intern: Software Engineer (Frontend & Backend) (f/m/x).

All applications for this role are processed directly by ilert GmbH. Career Nest facilitates the job discovery process and does not pre-screen or forward applications on behalf of employers. There are no fees for job seekers at any stage of the application process.

About Career Nest

Career Nest is a global job aggregation platform connecting professionals with thousands of opportunities across every major industry - from technology and marketing to finance, design, data science, healthcare, NGO, engineering, and beyond. Our platform aggregates live job listings from verified employers, leading job boards, and trusted staffing platforms worldwide.

We publish thousands of new roles every day from sources across 190+ countries. Whether you are looking for a fully remote role, a hybrid position, or an on-site opportunity in a specific city, Career Nest makes it easy to search, filter, save, and apply to the roles that match your experience and ambitions - all in one place, completely free for job seekers.

Every listing on Career Nest is reviewed for accuracy and relevance before being published. We are committed to providing job seekers with the most up-to-date, trustworthy job listings available. Explore thousands more opportunities across all categories at careernest.cloud.