Staff / Principal Design Engineer

Heartaerospace

At Heart Aerospace we develop the ES-30, a regional hybrid-electric airplane with a capacity of 30 passengers, an electric zero-emission range of 200 km and an extended hybrid range of 400 km. Heart is targeting type certification of the ES-30 by the end of the decade. Your mission As part of the Flight Mechanisms team, you will be responsible for design, development, validation, and eventually certification of components including primary and secondary flight control actuators, propulsion and landing gear components, and environmental control (ECS) components. You will work with electrical, software, and mechanical engineers across teams to build and fly complex systems. Key responsibilities include but are not limited * The opportunity to exercise full ownership over the design, fabrication and test of novel flight components. * You will lead the design of crucial subcomponents including gears, bearings, seals. * Design, build and test components to environmental qualification standards such as DO-160G, MIL-STD-810, or similar. * Work will a cross-functional team developing electronic and software control systems. (This position can be hired as a Staff Mechanical Design Engineer or Principal Mechanical Design Engineer ) Skills & Requirements: You'll Bring These Qualifications for Staff Mechanical Design Engineer, Mechanisms * 8+ years experience using CAD software in a professional environment (e.g., NX, CATIA, SolidWorks or similar). * Strong mechanical engineering fundamentals, including design (CAD), analysis (FEA/hand calcs), and fabrication (machine shop) * Experience with pneumatic, hydraulic, and/or electromechanical (motorized) systems. * Passion for aircraft and electrification of the aviation industry. You'll Bring These Qualifications for Principal Mechanical Design Engineer, Mechanisms * 12+ years experience using CAD software in a professional environment (e.g., NX, CATIA, SolidWorks or similar). * Strong mechanical engineering fundamentals, including design (CAD), analysis (FEA/hand calcs), and fabrication (machine shop) * Experience with pneumatic, hydraulic, and/or electromechanical (motorized) systems. * Passion for aircraft and electrification of the aviation industry. These Qualifications Would Be Nice to Have: * Thorough familiarity with aerospace design and regulatory standards (e.g., FAA, EASA) such as DO-160G, MIL-STD-810, or similar. * Demonstrated experience with hand-calculation methods for preliminary and verification analysis of complex mechanical systems. * Strong understanding of mechanical manufacturing fundamentals, including advanced GD&T concepts and application for mechanisms. * Proven capability to take designs from concept through to analysis and production, working independently and collaboratively with cross-functional teams. Education * Bachelor's in mechanical engineering, computer science, electrical engineering, or similar engineering discipline. Base Pay Range:  $173,000—$257,000 USD

Lovable Labs Sweden AB

TL;DR - We’re seeking exceptional experienced product designers to help shape Lovable. You’ll lead projects end-to-end, collaborating closely with engineering. We expect a broad range of design skills, and exceptional taste. You’ll join a team at the forefront of AI, enabling anyone to create software. Why Lovable? Lovable lets anyone and everyone build software with any language. From solopreneurs to Fortune 100 teams, millions of people use Lovable to transform raw ideas into real products - fast. We are at the forefront of a foundational shift in software creation, which means you have an unprecedented opportunity to change the way the digital world works. Lovable-built applications and websites are visited hundreds of millions of times a month, and our enterprise footprint is compounding fast. And we’re just getting started. We’re a small, talent-dense team building a generation-defining company from Stockholm. We value extreme ownership, high velocity, and low-ego collaboration. We seek out people who care deeply, ship fast, and are eager to make a dent in the world. What we’re looking for 10+ years experience working in high performing, fast-paced startup environments A portfolio showcasing successful product work loved by users and produced in high-velocity teams Talent for simplifying complicated user journeys into intuitive experiences Strong prototyping abilities with emphasis on clear visual communication Fluency with design systems and technical implementations Outstanding command of visual design, UI patterns, and interaction principles High aptitude for shipping and learning extraordinarily quickly Bonus: You ship to production, perhaps with a little help from AI Bonus: Experience designing AI products What you’ll do In one sentence: Design Lovable, making it the most Lovable piece of software ever. Craft detailed user flows and high-fidelity mockups for new features Own design projects from conception to delivery, collaborating with engineering or ideally implementing yourself with AI (we'll train you) Be scrappy and hands on with any design assets needed Establish scalable design processes that uphold quality standards Champion quick wins and impactful improvements Contribute to improving the design quality of Lovable's AI Help set the bar for design quality and the culture for how design works at Lovable Reinvent how teams work How we hire Fill in a short form then jump on an initial exploratory call. We'll send you a quick take-home asking to present your best work over a loom video presentation. Join us for a round of interviews to discuss your experience in more depth Join us for trial work lasting 1-2 days remote or on-site. We'll see how you tick and you get to meet the team and explore whether joining Lovable feels right for you. Important Note: Please submit your application in English. It’s our company language so you’ll be speaking lots of it if you join. We treat all candidates equally - if you’re interested please apply through our careers portal.

Rebtel Networks AB

Global migration is a 21st-century reality. Whether people are fleeing from something or racing towards better opportunity, following love or seeking new experiences, more and more are living in different environments and in new ways. We celebrate the power of people coming together. That’s why we connect ambitious people abroad with their families and friends back home so they can support each other emotionally and financially, and lead more enriched lives. Why Rebtel? When you join Rebtel, you become part of a global team, bringing together diverse minds from every corner of the world. Our headquarter is nestled in Stockholm and here we strike a balance between dedicated work and more relaxed activities. Every Friday the unmistakable aroma of freshly popped popcorn fills the air, but our celebrations encompass everything from minor and major common accomplishments to cinnamon bun day. What will you do? As a Staff .NET Developer at Rebtel you will serve as the technical guardian and principal individual contributor for the entire Backend (BE) architecture and ecosystem. This role is crucial for ensuring the technical excellence, scalability, reliability, and security of all backend systems that power our core products and services. The Staff Software Engineer will operate at a high level of abstraction, influencing engineering practices across multiple teams while remaining hands-on in critical areas. You’ll be actively involved in architectural decisions, contribute to technical discussions, and inspire your team to deliver clean, robust code. Responsibilities and Tasks: Lead the design, development, and deployment of complex, high-throughput backend services and APIs, ensuring best-in-class performance and maintainability. Drive architectural decisions and serve as the ultimate technical escalation point for BE-related challenges. Establish and articulate a clear, ambitious long-term vision and technical roadmap for the evolution of the BE systems. This includes planning for future growth, anticipating technological shifts, and driving the adoption of new technologies and patterns to maintain a competitive edge. Act as the primary architect for major system initiatives, defining microservices boundaries, data models, integration patterns, and deployment strategies. Proactively identify and resolve technical debt and architectural risks before they impact the business. Mentor engineers, elevating the technical expertise and quality of engineering output across the organization. Influence engineering standards and best practices for testing, performance tuning, and security across different development teams. Requirements: Exceptional and proven proficiency in the .NET area, including extensive experience with C#, .NET Core/8+, and related frameworks (e.g., ASP. NET Core, Entity Framework Core). Must demonstrate the ability to architect and build high-performance, fault-tolerant systems using the .NET stack. Demonstrable architecting skills with a strong background in designing and implementing large-scale, distributed systems (e.g., microservices, event-driven architectures, serverless). Expert knowledge of design patterns, domain-driven design (DDD), and SOLID principles. Extensive experience with at least one major cloud platform (AWS, Azure, or GCP) and related services (e.g., managed databases, message queues, containerization). Deep understanding of various database technologies (SQL and NoSQL) and data modeling best practices for scalable applications. System-Level Thinking: Ability to decompose complex problems into manageable components and evaluate trade-offs between different technical solutions (e.g., speed vs. stability, buy vs. build). Excellent verbal and written communication skills, with the ability to present complex technical ideas clearly to both technical and non-technical stakeholders, driving consensus on critical architectural decisions. Our Offer To You At Rebtel, you are the most important asset and we strive to provide a comprehensive package of benefits and perks that enhance your well-being and work experience. Here are some of the things you can expect from us: Pension Plan Health Checkups, Influenza shots and Private Medical Insurance Occupational insurance Wellness allowance (5,000 SEK) Discount on gym memberships Bonus program Extra parental pay 30 days annual vacation Monday breakfasts, dinner if staying in the office past regular working hours Relocation Support, if you're joining us from afar, we'll assist you in making a smooth transition. Rebtel is an international workplace, and at the office, we speak English; therefore, high English proficiency is required. We are Rebtel. We come from all around the world to create products for anyone who has crossed a border. We believe in equal opportunity and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.