Line Impact Engineer - Internship (f/m/d)

JetBrains

You know how frustrating a slow application is, and you have the technical curiosity to figure out exactly why it's lagging. You look at code, traffic, and infrastructure to find bottlenecks before they impact users. If you treat performance testing as a craft rather than a checklist, this is for you. ABOUT JETBRAINS We create intelligent software development tools for developers and teams. More than 15 million users, over 300,000 companies, and 88 of the Fortune Global Top 100 rely on our products to solve real, complex problems. Our mission is simple: make development teams more productive and AI adoptable at scale. WHAT YOU’LL DO YouTrack has grown from an online bug tracker into a comprehensive project management system used by teams worldwide. As our user base expands, maintaining top-tier performance and reliability is critical. We need a QA Performance Engineer who can help implement our performance testing strategy and uncover issues before they reach our users. You will join a collaborative team of 46 people who use Scrum and speak English as their shared working language. In this role, you won’t just run tests – you will influence how new features are planned and released. You'll work closely with developers to recreate complex user scenarios and build long-term confidence in our platform. Day to day, you will: * Participate in performance testing and analysis using both manual and automated approaches. * Write new automated performance tests and maintain the existing test suite. * Reproduce complex performance bugs and issues reported by users. * Configure performance test invocations as an integrated part of our continuous integration (CI) cycles. * Collaborate on functionality planning, incident investigation, and product releases. WHAT YOU’LL BRING * A deep care for software quality and a refusal to settle for "good enough." * Strong analytical thinking to track down the root cause of systemic issues rather than just treating symptoms. * The ability to work independently, manage your own priorities, and take full ownership of outcomes. * Excellent communication skills to discuss technical problems transparently with developers. * A collaborative mindset to work seamlessly across distributed teams and time zones. * Curiosity and a drive to leave systems cleaner and faster than you found them. WHAT YOU’LL NEED * Proven experience running and analyzing both manual and automated performance tests. * Solid understanding of HTTP and TCP/IP protocols. * Proficiency with performance testing tools such as JMeter, Gatling, or k6. * Experience testing web applications manually and via automation frameworks like Selenium or Playwright. * Familiarity with teamwork tools, including issue trackers, version control systems, and CI/CD servers. * Comfort working in command-line environments using tools like Bash, grep, SSH, and curl. * Strong spoken and written English language skills. * Experience with Docker, Kubernetes, REST API testing, or platform-specific performance monitoring (top, htop, perfmon, etc.) is a strong plus. WHAT SUCCESS LOOKS LIKE Success means earning trust through solid technical decisions and uncovering regressions early. You’ll know you’re succeeding when our CI cycle catches performance drops automatically, user-reported performance bottlenecks decrease, and the team relies on your insights during feature planning to keep YouTrack fast and stable. Why join JetBrains?  * Strong base salary. We offer competitive pay that reflects your skills and experience. * Flexible work location. Enjoy the freedom to work from home or from the office. * Remote work. Spend up to 30 days per year working remotely from abroad. * Extra time off. More days to relax, recharge, and do the things you love. * Medical insurance allowance. Enjoy peace of mind for you and your family * Learning and development opportunities. Access to conferences, courses, and language classes. * Relocation support. We help make your move as smooth and stress-free as possible. * Language classes. Pick up the local language or sharpen your English skills. * Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays. * Mental health support. To help you feel your best, we provide easy access to professional mental health services. * Sports benefit. Enjoy an on-site gym or sports club stipend. * Internal events. Join company-wide celebrations and team gatherings. *Some benefits may vary depending on location. #LI-PR1 We are an equal opportunity employer We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation. We process the data provided in your job application in accordance with the Recruitment Privacy Policy.

Isarsoft

WE ARE ISARSOFT We make every camera count At Isarsoft we develop video analytics software to make transportation and cities more efficient, inclusive and secure. We stand for data protection and responsible processing of sensitive data. Being on the forefront of innovation we work together in interdisciplinary teams in a positive, fun and energetic atmosphere. Our customers and partners are at the center of everything we do. Founded in 2019 we have grown organically winning large customers and partners delivering compelling, reliable, high-performance software. We are proud of being a privately held company focusing on long-term relations to our customers and team members. YOUR MISSION As Senior Software Engineer at Isarsoft you will be at the heart of the product development. You will be closely working together with our international engineering team including Isarsoft's CTO and Co-Founder. It is within your responsibilities to develop and maintain our core product Isarsoft Perception and related tools and services. YOUR PROFILE * Extensive expertise in designing and developing robust software utilizing TypeScript, Python, and C++. * Strong foundation in software architecture and design patterns, version control systems (Git) and hands-on experience with CI/CD pipelines. * Strong background in containerization and orchestration technologies, specifically Docker, Docker Compose, and Kubernetes. * Deep understanding of Linux environments, demonstrating native fluency with the command-line interface (CLI) and OS-level operations. * Fullstack versatility, with the expectation to confidently navigate and contribute across the entire stack utilizing AI assistance; prior experience with React is advantageous. * Solid experience working with relational databases, writing complex SQL queries, and utilizing Object-Relational Mapping (ORM) frameworks. * Hands-on experience developing for and deploying to embedded systems and hardware AI accelerators, particularly within the NVIDIA Jetson ecosystem. * Proven ability to architect and optimize video processing pipelines, with practical experience using multimedia frameworks such as GStreamer. * Modern development workflow proficiency, including the confident and reliable use of AI coding assistants (e.g., Claude Code, Cursor) to accelerate development while applying strict quality control to ensure high-grade, production-ready code. * Familiarity with Computer Vision and Deep Learning concepts, architectures, and applications is considered a strong plus. ADDITIONAL ASSETS * Excellent communication skills, featuring full professional fluency in English (both written and verbal); proficiency in German is a strong plus. * Deep technical curiosity and a passion for understanding the internal workings and underlying mechanics of complex systems. * Highly collaborative approach, demonstrating an enthusiasm for building great software within a team of skilled and motivated peers. * Visible open-source contributions, demonstrated through a public profile (e.g., GitHub) or shared personal projects, are highly valued and considered a significant asset. BENEFITS * An experienced, highly motivated and international team to learn and grow * A high-impact work environment with flat hierarchies and short decision-making processes * Have the flexibility to work from anywhere: A great office in Munich, from home or the English-Garden * Free lunch, coffee, drinks and snacks at our office Sounds good? We are just getting started. Let's build a great company together. HIRING PROCESS We are committed to a transparent and fair hiring process. We aim for concluding the interview process in no longer than 3 weeks. The following three stages are typical for any position at Isarsoft. * Video Interview with HR * Technical Deep Dive / Challenge * A personal meeting with the founders We deeply believe that a great product only can be built by a great team. That's why sharing our values, being a team-player and having a energetic attitude is as important as bringing the right technical skills.

STARK

ABOUT US STARK is a new kind of defence technology company revolutionising the way autonomous systems are deployed across multiple domains. We design, develop, and manufacture high-performance unmanned systems that are software-defined, mass-scalable, and cost-effective - providing operators with a decisive edge in contested environments. We are focused on delivering deployable, high-performance systems - not future promises. In a time of rising threats, STARK is bolstering the technological edge of NATO Allies and their Partners to deter aggression and defend Europe, today. YOUR MISSION As a Manufacturing Engineer (Generalist & MTM Specialist), you will focus on maximizing production efficiency, line balancing, and labor optimization. While you support broad manufacturing engineering topics, your superpower is using Methods-Time Measurement (MTM) to analyze manual operations, eliminate waste, and establish accurate standard times. You will ensure our shop floor operations are highly efficient, safe, and ergonomically sound. RESPONSIBILITIES EARLY-STAGE R&D COLLABORATION & MANUAL ASSEMBLY SOLUTIONS  * Pre-Production Design Input: Partner with R&D during the initial prototyping and design phases to review manual assembly steps. Propose design modifications that simplify manual handling, reduce component orientation complexity, and minimize assembly errors. * Predictive Labor Costing: Utilize MTM methodologies on early-stage CAD models and prototypes to estimate standard assembly times, helping R&D evaluate the labor-cost impact of different design variations. * Mistake-Proofing (Poka-Yoke): Work with R&D to define physical design features (e.g., asymmetrical alignment pins, keyed slots) that make incorrect manual assembly physically impossible. * Ergonomic Design Guidance: Ensure R&D designs avoid requiring excessive physical force, awkward hand postures, or specialized dexterity, protecting operators from repetitive strain injuries once the product hits mass production. WORK MEASUREMENT & MTM * Time & Motion Analysis: Apply MTM methodologies (MTM-1, MTM-2, or UAS) to analyze manual assembly operations, establish precise standard times, and eliminate waste. * Line Balancing & Layout: Design and continuously optimize production line balancing to eliminate bottlenecks, distribute workloads evenly, and maximize throughput. QUALIFICATIONS * Bachelor’s degree in Industrial Engineering, Manufacturing Engineering, or a related field. * Certified MTM practitioner (strongly preferred) with proven experience applying time-study and work-measurement methodologies on a live production floor. * Strong background in Lean Manufacturing, workplace ergonomics, and facility layout design. For further information please reach out to talent@stark-defence.com.