{"schemaVersion":"jobsearcher.job.v1","id":"3db1a35273880430fb734d70","url":"https://jobsearcher.com/jobs/3db1a35273880430fb734d70","canonicalUrl":"https://jobsearcher.com/jobs/3db1a35273880430fb734d70","title":"Fullstack Developer Intern","description":"Engineering Internship – Gothenburg / Stockholm\r\nLocation: Gothenburg / Stockholm | Seniority: Junior / Mid-Level | Employment type: Internship (Full-time) | Compensation: No Compensation\r\nAbout This Role\r\nAre you looking for a full-time internship (4-6 months) where you'll actually build real stuff, learn a ton, and have fun doing it?\r\nAt Sid, we're transforming how B2B SaaS companies reach decision-makers through ultra-targeted advertising, and we're looking for a full-stack intern to help us level up our internal tools and platform. If you're curious, eager to code, and want to be part of a fast-moving, collaborative team—this one's for you.\r\nAbout the Role\r\nAs a Fullstack Intern, you'll collaborate directly with the product and tech team to deliver internal tools and features that impact our day-to-day operations and client campaigns. You'll work on building user interfaces, developing APIs, and designing backend logic in a real production environment from day one. This role isn't just about writing code—you'll also act like a product engineer, thinking critically about what we build and why.\r\nWhat You'll Do\r\nBuild Frontends: Design and develop functional and beautiful UIs using modern frontend frameworks.\r\nDevelop Backends: Create clean, scalable APIs and server-side logic to support new tools and services.\r\nIntegrate Systems: Connect third-party platforms, marketing tools, and databases to streamline operations.\r\nImprove UX: Continuously iterate on product design based on internal feedback and real usage.\r\nShip Code: Contribute to real sprints with support from senior developers, product managers, and users.\r\nAbout You\r\nYou don't need 5 years of experience. We're looking for someone smart, curious, and ready to learn. You're probably studying computer science, design, or a related field (or you're self-taught and love building stuff).\r\nBuilt or contributed to full-stack projects on your own or in school.\r\nUnderstanding how APIs and databases work together in modern web apps.\r\nA concern for building usable, well-structured, clean code—not just getting it to work.\r\nEnjoy working in a tight-knit, collaborative team with quick feedback loops.\r\nLooking for a full-time internship where you'll do meaningful work that ships.\r\nNice-to-Haves\r\nExperience with tools like Next.js, React, TypeScript, Node.js, or similar.\r\nUnderstanding of Git, CI/CD, and collaborative development practices.\r\nFamiliarity with databases (SQL or NoSQL), ORMs, and auth workflows.\r\nInterest in UI/UX, system design, or performance optimization.\r\nWhat We Offer You\r\nHands-On Learning: Work with modern tools and frameworks in a real production environment.\r\nMentorship & Feedback: Learn directly from a CTO who has scaled a startup to acquisition by Mastercard and knows what it takes to build resilient, large-scale systems.\r\nOwnership: Your work will ship. Your decisions will matter.\r\nStartup Energy: Fast-moving, high-learning environment where you'll never be bored.\r\nHybrid Flexibility: We're remote-first but love co-working when it makes sense.\r\nAbout Sid\r\nFounded in 2024, Hey Sid is a next-generation, person-targeted advertising platform that helps B2B companies reach decision-makers with precision. We bring together audience identification, creativity, and campaign management into one streamlined flow, ensuring that every ad dollar reaches the right person.\r\nAs a young and fast-growing company, we're building an ambitious team that values ownership, creativity, and results. Joining us means the opportunity to have a real impact on both the business and your career growth.\r\nJ-18808-Ljbffr","company":"Sid Marketing","rawCompany":"sid marketing","city":"Brockport","state":"NY","isRemote":false,"isActive":false,"createdAt":"2026-07-04T02:42:39.649Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Fullstack Developer Intern","description":"Engineering Internship – Gothenburg / Stockholm\r\nLocation: Gothenburg / Stockholm | Seniority: Junior / Mid-Level | Employment type: Internship (Full-time) | Compensation: No Compensation\r\nAbout This Role\r\nAre you looking for a full-time internship (4-6 months) where you'll actually build real stuff, learn a ton, and have fun doing it?\r\nAt Sid, we're transforming how B2B SaaS companies reach decision-makers through ultra-targeted advertising, and we're looking for a full-stack intern to help us level up our internal tools and platform. If you're curious, eager to code, and want to be part of a fast-moving, collaborative team—this one's for you.\r\nAbout the Role\r\nAs a Fullstack Intern, you'll collaborate directly with the product and tech team to deliver internal tools and features that impact our day-to-day operations and client campaigns. You'll work on building user interfaces, developing APIs, and designing backend logic in a real production environment from day one. This role isn't just about writing code—you'll also act like a product engineer, thinking critically about what we build and why.\r\nWhat You'll Do\r\nBuild Frontends: Design and develop functional and beautiful UIs using modern frontend frameworks.\r\nDevelop Backends: Create clean, scalable APIs and server-side logic to support new tools and services.\r\nIntegrate Systems: Connect third-party platforms, marketing tools, and databases to streamline operations.\r\nImprove UX: Continuously iterate on product design based on internal feedback and real usage.\r\nShip Code: Contribute to real sprints with support from senior developers, product managers, and users.\r\nAbout You\r\nYou don't need 5 years of experience. We're looking for someone smart, curious, and ready to learn. You're probably studying computer science, design, or a related field (or you're self-taught and love building stuff).\r\nBuilt or contributed to full-stack projects on your own or in school.\r\nUnderstanding how APIs and databases work together in modern web apps.\r\nA concern for building usable, well-structured, clean code—not just getting it to work.\r\nEnjoy working in a tight-knit, collaborative team with quick feedback loops.\r\nLooking for a full-time internship where you'll do meaningful work that ships.\r\nNice-to-Haves\r\nExperience with tools like Next.js, React, TypeScript, Node.js, or similar.\r\nUnderstanding of Git, CI/CD, and collaborative development practices.\r\nFamiliarity with databases (SQL or NoSQL), ORMs, and auth workflows.\r\nInterest in UI/UX, system design, or performance optimization.\r\nWhat We Offer You\r\nHands-On Learning: Work with modern tools and frameworks in a real production environment.\r\nMentorship & Feedback: Learn directly from a CTO who has scaled a startup to acquisition by Mastercard and knows what it takes to build resilient, large-scale systems.\r\nOwnership: Your work will ship. Your decisions will matter.\r\nStartup Energy: Fast-moving, high-learning environment where you'll never be bored.\r\nHybrid Flexibility: We're remote-first but love co-working when it makes sense.\r\nAbout Sid\r\nFounded in 2024, Hey Sid is a next-generation, person-targeted advertising platform that helps B2B companies reach decision-makers with precision. We bring together audience identification, creativity, and campaign management into one streamlined flow, ensuring that every ad dollar reaches the right person.\r\nAs a young and fast-growing company, we're building an ambitious team that values ownership, creativity, and results. Joining us means the opportunity to have a real impact on both the business and your career growth.\r\nJ-18808-Ljbffr","datePosted":"2026-07-04T02:42:39.649Z","dateModified":"2026-07-04T02:42:39.649Z","hiringOrganization":{"@type":"Organization","name":"Sid Marketing","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Brockport","addressRegion":"NY","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"3db1a35273880430fb734d70"},"url":"https://jobsearcher.com/jobs/3db1a35273880430fb734d70"}}