Fullstack Developer Java/Kotlin/React

🏢 Summary: Fullstack Developer role focused on building and maintaining a customer-facing B2B portal in a cross-functional Agile team. The position involves backend development in Java, frontend development with JavaScript, and collaboration on scalable, high-quality solutions. The role is hybrid in Stockholm with a long-term contract and possible extension. 🗂️ Requirements: Several years of experience as a Fullstack Developer, Strong experience with Java backend development, Strong experience with JavaScript frontend development, Experience with REST APIs and system integrations, Experience with relational databases, Experience using Git and CI/CD pipelines, Experience working in Agile environments, Fluent English communication skills 📃 Skills: Java, JavaScript, REST, SQL, Git, CI/CD, Scrum, Kanban, Spring, React, TypeScript, Docker, Kubernetes, OAuth, OIDC 🏢 Description: emagine is looking for an experienced Fullstack Developer to strengthen our client’s development team. You will be part of a cross-functional product team responsible for developing, maintaining, and enhancing our client’s customer-facing B2B portal. The role requires close collaboration with Product Owners, UX, Q&A and developers to deliver scalable, high-quality solutions that improve the customer experience. Start: 27th of July Length: 19th of February with possible extension Location: Required to be on-site in Stockholm 2-3 days per week Responsibilities • Develop, test, and maintain features across the full technology stack. • Develop backend services using Java. • Develop frontend functionality using JavaScript and modern web technologies. • Participate in solution design and technical discussions. • Ensure code quality through testing, code reviews, and adherence to development standards. • Troubleshoot and resolve production issues when needed. • Contribute to continuous improvements in development practices, performance, and security. • Participate in Agile ceremonies as part of a Scrum team. Required Competencies • Several years of experience as a Fullstack Developer. • Strong experience with Java backend development. • Strong experience with JavaScript frontend development. • Experience working with REST APIs and system integrations. • Experience with relational databases. • Experience using Git and CI/CD pipelines. • Experience working in Agile development environments (Scrum/Kanban). • Strong analytical and problem-solving skills. • Excellent communication and collaboration skills. • Fluent in English, both written and spoken. Meritorious Experience with one or more of the following is considered an advantage: • Spring Boot • React • TypeScript • Docker and Kubernetes • Microservice architecture • Identity and Access Management (SSO/OAuth/OIDC) • Customer portals or B2B digital platforms • Telecommunications industry Personal Qualities We are looking for someone who is: • Proactive and self-driven. • Solution-oriented with a strong customer focus. • Comfortable working in a fast-paced environment. • A collaborative team player who shares knowledge with colleagues. • Committed to delivering high-quality software.

🏢 Summary: Mid-level Fullstack Engineer role focused on building and enhancing customer-facing mobile and web applications within a cloud-native, data-intensive environment. The assignment involves developing backend services and event-driven microservices, integrating with AWS and messaging systems, and ensuring system reliability and observability. The position supports high-transaction, business-critical workflows in a cross-functional product team. 🗂️ Requirements: 4–6 years of software development experience, Strong experience with TypeScript, Strong experience with Node.js, Strong experience with React Native, Experience with event-driven architectures, Experience with distributed systems, Experience with PostgreSQL and/or DynamoDB, Experience with Kafka and SQS, Experience with AWS including S3, Experience with monitoring and observability tools, Experience developing mobile and web applications, Experience with data-intensive applications and complex workflows 📃 Skills: TypeScript, Node.js, React, ReactNative, Kafka, SQS, AWS, S3, PostgreSQL, DynamoDB, Datadog, Microservices 🏢 Description: emagine is looking for a Mid level Fullstack Engineer to join a product development team building and enhancing customer-facing digital services. The assignment involves developing mobile and web applications, contributing to backend services, and working with modern cloud-native technologies in a scalable and data-intensive environment. You will collaborate closely with Product Managers, Designers, and Engineers to deliver high-quality solutions that support business-critical workflows and customer experiences. Start: ASAP (within a few week) Duration: 1 year to start with Location: Stockholm, min 2-3 days/week at the office Wha you will do Develop and maintain applications using React Native, TypeScript, and Node.js. Contribute to the development of event-driven micro services and backend services. Build and maintain integrations using Kafka, SQS, and AWS services. Develop solutions that handle high transaction volumes and complex data flows. Support system reliability, monitoring, and observability initiatives. Work closely with cross-functional teams throughout the product development lifecycle. Participate in experimentation, feature flagging, and A/B testing activities. Profile: 4–6 years of experience in software development. Strong experience with TypeScript, Node.js, and React Native. Experience working with event-driven architectures and distributed systems. Experience with PostgreSQL and/or DynamoDB. Familiarity with Kafka and SQS. Experience with AWS, including S3. Experience using Datadog or similar monitoring and observability tools. Experience developing mobile and web applications. Experience working with data-intensive applications and complex workflows. Experience from fintech or another regulated industry is highly desirable. Familiarity with modern software delivery practices, including feature flags and A/B testing.

🏢 Summary: Fullstack Developer role focused on building web solutions and backend components using .NET and modern web technologies in an on-prem and Azure-connected environment. The position involves close collaboration within a WebDev team and delivery of solutions for a Copenhagen-based client. This is a full-time, onsite assignment starting ASAP for 3 months. 🗂️ Requirements: Expertise in .NET and .NET Core, Very strong experience with Microsoft SQL (Azure), Very strong experience with React and Node.js, Experience with Azure DevOps, Experience with Microsoft Azure development, Knowledge of Terraform 📃 Skills: .NET, .NETCore, MSSQL, Azure, React, Node.js, AzureDevOps, Terraform 🏢 Description: emagine is looking for a fullstack developer for one of our clients. As the Fullstack Developer you need to be proficient in .NET and modern web technologies to join our team based in Copenhagen. Main Task: Collaborating with team members in the WebDev group Doing web solutions and some backend On-prem work and Azure connected tasks Key Requirements Expertise in .NET / .NET Core Very experienced in Microsoft SQL (Azure) Very experienced with React / Node.js Experience with Microsoft Azure DevOps Experience in Microsoft Azure (Development areas) Knowledge in Terraform Strong personal attributes: approachable, flexible, accountable, and stable Fluent in danish Start: ASAP Duration: 3 months Workload: Fulltime + onsite Location: Copenhagen

🏢 Summary: 6-month on-site contract for a Platform Software Engineer to build and operate a production-grade application platform for a global AI product. The role covers the full lifecycle from deployment to runtime, ensuring reliability, scalability, and performance of distributed systems. You will evolve infrastructure and core platform services into a modular, high-performing architecture. 🗂️ Requirements: 6+ years in software engineering or platform/infrastructure roles, Strong experience with distributed systems, Experience with platform engineering, SRE, or infrastructure operations, Experience with multitenant environments, Experience with container orchestration, Experience working with external vendors and managed services, Experience operating production systems with focus on uptime and scalability 📃 Skills: Kubernetes, AWS, GCP, Cloudflare, Go, Rust, React, TypeScript, ClickHouse, BigQuery, Firestore, Spanner, Terraform, CI/CD, DNS, SSL 🏢 Description: emagine is looking for a Platform Software Engineer to one of the most exciting AI companies in Stockholm. Start: ASAP Length: 6 months with possible extension Location: Stockholm on-site 5 days per week About the role You will play a key role in building and operating the platform that runs applications in production. This includes the full lifecycle from deployment to runtime, ensuring reliability, scalability, and performance across a global user base. The platform handles everything behind the scenes when an application is launched: infrastructure provisioning, authentication, storage, logging, usage metering, and domain management. As part of a growing team, you will help evolve this platform into a more modular, scalable, and high-performing architecture. Key responsibilities Own and improve the application hosting and deployment pipeline Build and operate the runtime that serves applications in production Manage and evolve core platform services such as storage, logging, and workflows Design and maintain infrastructure for custom domains, including DNS and SSL at scale Evaluate, onboard, and migrate third-party services as part of a move towards best-of-breed architecture Ensure operational excellence through monitoring, alerting, incident management, and capacity planning Collaborate with vendors and ensure high service quality and SLA adherence What we are looking for Strong experience building and operating distributed systems Around 6+ years of experience in software engineering or platform/infrastructure roles Background in platform engineering, SRE, or infrastructure operations Experience with multitenant environments, container orchestration (e.g. Kubernetes), or edge runtimes Experience working with external vendors and managed services Strong operational mindset with focus on uptime, performance, scalability, and cost efficiency Nice to have Experience building large-scale multitenant control planes Experience with modern edge platforms (e.g. Cloudflare ecosystem) Contributions to cloud infrastructure or CNCF-related technologies Experience with log analytics platforms such as ClickHouse Familiarity with managed database services Proven track record of cost optimization in infrastructure Tech stack (examples) Frontend: React, Typescript Backend: Go, Rust Cloud: AWS, GCP, Cloudflare Data: ClickHouse, BigQuery, Firestore, Spanner DevOps: Kubernetes, Terraform, CI/CD, observability tooling

🏢 Summary: Frontend/Fullstack Engineer role within a growth and activation team focused on improving user onboarding through personalized, data-driven experiences. The position involves hands-on development across frontend and backend, building interactive UI components and experimentation frameworks to drive user impact. On-site work in Stockholm with a project duration from mid-August to December 31, 2026. 🗂️ Requirements: 4+ years experience with React, 4+ years experience with TypeScript, 4+ years experience with HTML, 4+ years experience with CSS, Backend development experience with Python, Go, or Kotlin, Proven fullstack product development experience, Experience with experimentation and A/B testing, Experience with tracking and data-driven development, Ability to work on-site 4 days per week in Stockholm 📃 Skills: React, TypeScript, HTML, CSS, Python, Go, Kotlin, A/B, Experimentation, Tracking, GCP, Contentful, Optimizely, Mixpanel, Looker 🏢 Description: emagine is looking for a Frontend/Fullstack Engineer to join a growth/activation team. Start: mid-August 2026 End: December 31, 2026 Location: Required to be on-site 4 days per week in Stockholm About the role You will join a team focused on a critical stage of the user journey – onboarding and activation. The goal is to improve how new users discover value through personalized, data-driven experiences and fast iteration cycles. This is a hands-on role with both frontend and backend responsibilities, with a strong focus on delivering user impact. Key responsibilities Build onboarding flows, nudges, and interactive UI components Work fullstack with React/TypeScript and backend in Python, Go, or Kotlin Drive A/B testing and experimentation within a growth context Develop solutions based on user signals and behavior Ensure system reliability and observability Leverage AI-assisted development workflows Requirements 4+ years of experience with React, TypeScript, HTML, and CSS Experience with backend development (Python, Go, or Kotlin) Proven experience in fullstack product development Experience working with experimentation, tracking, and data-driven development Strong ownership mindset and ability to drive work forward Nice to have Strong frontend architecture and performance optimization experience Experience with server-side rendering Experience with GCP and Contentful Familiarity with tools like Optimizely, Mixpanel, Looker

🏢 Summary: Fullstack Developer role focused on building and maintaining web and backend solutions using .NET and modern web technologies in an on-prem and Azure-connected environment. The position involves collaboration within a WebDev team and delivery of full-time onsite work in Copenhagen for a 3-month engagement. The role requires strong expertise in Microsoft-based technologies and cloud development. 🗂️ Requirements: Expertise in .NET / .NET Core, Strong experience with Microsoft SQL (Azure), Strong experience with React, Strong experience with Node.js, Experience with Microsoft Azure DevOps, Experience with Microsoft Azure (development), Knowledge of Terraform, Valid MSDN subscription 📃 Skills: .NET, .NET Core, SQL, Azure, React, Node.js, Azure DevOps, Terraform, MSDN 🏢 Description: emagine is looking for a fullstack developer for one of our clients. As the Fullstack Developer you need to be proficient in .NET and modern web technologies to join our team based in Copenhagen. Main Task: Collaborating with team members in the WebDev group Doing web solutions and some backend On-prem work and Azure connected tasks Key Requirements Expertise in .NET / .NET Core Very experienced in Microsoft SQL (Azure) Very experienced with React / Node.js Experience with Microsoft Azure DevOps Experience in Microsoft Azure (Development areas) Knowledge in Terraform Strong personal attributes: approachable, flexible, accountable, and stable Fluent in danish Start: ASAP Duration: 3 months Workload: Fulltime + onsite Location: Copenhagen

🏢 Summary: Fullstack .NET Developer role for a Nordic banking client, focused on developing and maintaining C#/.NET APIs and modern Angular-based SPAs in a cloud-native environment. The position involves working with OpenShift, containers, and CI/CD pipelines in an agile setup, with a hybrid work model in Stockholm. The assignment runs from June 2026 to June 2027. 🗂️ Requirements: Extensive experience with C# and .NET / .NET Framework (8–10), Experience developing C# .NET SPAs running on OpenShift, Experience building C# .NET APIs, including composite APIs, Strong experience with modern Angular (not AngularJS), Solid knowledge of JavaScript and TypeScript, Experience in both backend and frontend development, Hands-on experience with Docker, Kubernetes, OpenShift, Experience with GitHub and GitHub Actions, Experience with CI/CD pipelines, Experience working in agile development environments, Understanding of modern software engineering principles 📃 Skills: C#, .NET, Angular, JavaScript, TypeScript, Docker, Kubernetes, OpenShift, GitHub, GitHubActions, CI/CD, SPA, API 🏢 Description: emagine is looking for a Fullstack .NET Developer to one of our nordic banking clients. Start: 2026-06-17 End: 2027-06-30 Location: Stockholm (3 days onsite, 2 days remote) Required Skills & Experience Extensive experience in C# and .NET / .NET Framework (versions 8–10)Developer experience in C# .NET Frontend Single-Page Applications (SPA) running on OpenShift Developer experience in C# .NET APIs, preferably within composite APIs consuming other APIs Strong experience from projects involving changes in both Frontend SPAs and APIs Strong experience with Angular (preferably modern Angular frameworks, not legacy AngularJS) Solid knowledge of JavaScript and TypeScript Experience in both back-end and front-end development Hands-on experience with: Docker Kubernetes OpenShift Experience using: GitHub GitHub Actions CI/CD pipelines Experience working in agile development environment. Strong understanding of modern software engineering principles and best practices Meritorious Experience from development projects within banking or financial services Experience working in regulated or large enterprise environments Experience with scalable API architectures and integrations

🏢 Summary: 6-month on-site contract for a Platform Software Engineer focused on building frontend interfaces and control planes for an AI-driven application platform. The role centers on creating scalable UIs and abstractions that expose complex infrastructure capabilities such as deployments, authentication, and observability. You will collaborate with backend and infrastructure teams to deliver intuitive, reliable developer-facing tools. 🗂️ Requirements: Strong experience with React and TypeScript, Experience building complex frontend applications, Experience working with backend or infrastructure systems, Understanding of cloud platforms and deployment concepts, Ability to design APIs and data models with backend teams, Experience designing developer-facing or technical user interfaces, Ability to reason about data flow and system boundaries 📃 Skills: React, TypeScript, Golang, Rust, AWS, GCP, Cloudflare, ClickHouse, BigQuery, Firestore, Spanner, Kubernetes, Terraform, CI/CD 🏢 Description: emagine is looking for a Platform Software Engineer ( Frontend-focused with Golang experience ) to join one of the most exciting AI companies in Stockholm. Start: ASAP Length: 6 months, with possible extension Location: Stockholm, on-site 5 days per week About the role You will work on the frontend-facing surfaces of a large-scale application platform that runs AI-generated applications in production. This role focuses on building the interfaces, control planes, and developer experiences that sit on top of complex infrastructure systems. The platform handles everything required to run applications in production — deployment, authentication, storage, logging, usage metering, and domain management. Your focus will be to make these capabilities accessible, understandable, and safe to use through well-designed UIs, APIs, and abstractions. You will collaborate closely with backend and infrastructure engineers, translating platform capabilities into intuitive tools that enable rapid development, configuration, and operational insight. Key responsibilities Build and evolve frontend applications and control panels used to manage applications, environments, and deployments Design and implement user interfaces for platform configuration, observability, and usage insights Collaborate with backend and infra engineers to define APIs and data models for platform features Ensure frontend solutions scale with platform growth and increasing system complexity Improve developer experience by making infrastructure capabilities easy to understand and hard to misuse Contribute to platform reliability by surfacing health, status, and operational signals through UI Take part in platform design discussions, balancing usability, security, and system constraints What we are looking for Strong experience building complex frontend applications using React and TypeScript Experience working close to backend, platform, or infrastructure systems Understanding of how cloud platforms, deployments, and environments work at a conceptual level Experience designing frontend solutions for technical or developer-facing users Ability to reason about data flow, APIs, and system boundaries Product-minded approach with attention to usability, clarity, and long-term maintainability Nice to have Experience building internal tools, admin panels, or control planes Familiarity with platform concepts such as environments, deployments, observability, or feature flags Experience visualizing metrics, logs, or system state in frontend applications Exposure to cloud platforms or DevOps tooling Previous experience working in platform, infrastructure, or developer tooling teams Tech stack (examples) frontend: React, TypeScript backend: Go, Rust cloud: AWS, GCP, Cloudflare data: ClickHouse, BigQuery, Firestore, Spanner devops: Kubernetes, Terraform, CI/CD, observability tooling

🏢 Summary: Senior Full Stack Developer role in Financial Crime Prevention focused on building and operating cloud-native, secure, and scalable banking applications using Java and React. The position involves developing microservices, event-driven systems, AI-enabled solutions, and enterprise integrations in a regulated environment. The consultant will contribute across the full software development lifecycle, including design, deployment, operations, and continuous improvement. 🗂️ Requirements: Strong Java development with Spring Boot and Spring Cloud, Experience with microservice-based architectures, Frontend development using React and TypeScript, Containerization with Docker and Kubernetes, Knowledge of Apache Kafka and event-driven architectures, Experience with Redis and in-memory data platforms, Building RESTful APIs and enterprise integrations, Cloud-native development and CI/CD pipelines, Automated testing, code reviews, and DevSecOps practices, Experience in regulated environments with security and compliance requirements, Knowledge of ITIL processes, Understanding of SSDLC principles, Understanding of AI-enabled applications and ML integrations, Knowledge of LLMs, RAG, AI agents, and secure AI integration, Understanding of IT risk management, AI governance, and regulatory compliance, Ability to collaborate with cross-functional teams and stakeholders, Strong communication and technical solution design skills 📃 Skills: Java, Spring, SpringBoot, SpringCloud, React, TypeScript, Docker, Kubernetes, Kafka, Redis, REST, CI/CD, DevSecOps, ITIL, SSDLC, AI, LLM, RAG, LangChain, LangGraph, SemanticKernel, GCP, Azure, AWS, GitOps 🏢 Description: emagine is looking for a Fullstack Developer Java/React to one of our banking clients for their FCP domain. Start date: ASAP End date: 2027-07-16 Location: Stockholm (3 days onsite, 2 days remote) Description Senior Full Stack Developer – Financial Crime Prevention We are looking for a highly skilled Senior Full Stack Developer with extensive experience in designing, developing, and operating modern cloud-native applications within the Financial Crime Prevention (FCP) domain. The consultant should have a proven track record of building scalable, resilient, and secure distributed systems supporting fraud detection, anti-money laundering (AML), sanctions screening, or other financial crime prevention capabilities. The ideal candidate combines strong software engineering expertise with a deep understanding of enterprise architecture, operational excellence, security, and risk management, ensuring solutions are scalable, maintainable, and compliant with regulatory and organizational requirements. Required competencies -Strong experience in Java development using modern frameworks such as Spring Boot and Spring Cloud. -Proven experience designing and developing microservice-based architectures. -Hands-on experience with modern frontend development using React and TypeScript. -Experience developing and operating containerized applications using Docker and Kubernetes. -Strong knowledge of Apache Kafka, including topics, partitions, producers, consumers, Kafka Connect, and event-driven architectures. -Experience working with Redis and other in-memory data platforms for high-performance, low-latency applications. -Experience building RESTful APIs and integrating with enterprise systems. -Experience working with cloud-native platforms and CI/CD pipelines. Solid understanding of software quality practices, including automated testing, code reviews, and DevSecOps. -Experience implementing solutions in highly regulated environments with strong security and compliance requirements. -Knowledge of ITIL processes, including Incident, Problem, Change, and Service Management. -Experience applying Secure Software Development Lifecycle (SSDLC) principles throughout the software development lifecycle. -Good understanding of AI-enabled applications, including integration with machine learning models, Generative AI services, and Agentic AI frameworks and orchestration patterns. -Familiarity with AI agents, Large Language Models (LLMs), retrieval-augmented generation (RAG), tool/function calling, and secure AI integration within enterprise environments. -Good understanding of IT Risk Management frameworks, security controls, audit requirements, AI governance, and regulatory compliance. -Ability to collaborate effectively with business stakeholders, solution architects, security teams, compliance functions, and cross-functional engineering teams. -Strong communication skills and the ability to translate business requirements into robust, scalable technical solutions. Preferred qualifications -Experience within banking or financial services. -Experience developing high-volume, low-latency transaction processing systems. -Experience with observability tools, logging, monitoring, and performance optimization. -Experience working in agile product teams. -Experience building AI-powered applications using modern frameworks such as LangChain, LangGraph, Semantic Kernel, or similar -Agentic AI orchestration frameworks. -Familiarity with cloud platforms such as Google Cloud Platform (GCP), Microsoft Azure, or Amazon Web Services (AWS). -Experience with Infrastructure as GitOps, and modern deployment practices. The consultant is expected to contribute across the full software development lifecycle, from solution design and implementation to deployment, operations, and continuous improvement, while ensuring that solutions align with enterprise architecture, security standards, operational excellence, and Financial Crime Prevention objectives. The consultant should also be able to identify and implement opportunities where Generative AI and Agentic AI can enhance developer productivity, automation, operational efficiency, and fraud detection capabilities while adhering to enterprise AI governance and security requirements.

🏢 Summary: Senior Platform Developer role (Android or iOS) focused on building and scaling a shared mobile platform foundation. The position centers on developing reusable components, implementing RBAC, and defining cross‑platform architecture standards to support feature teams. It also emphasizes improving developer experience through better tools, pipelines, and workflows. 🗂️ Requirements: Senior-level experience in Android or iOS development, Proficiency in Swift, Kotlin or Kotlin Multiplatform, Experience building and maintaining shared libraries, Experience implementing RBAC and permissions models, Strong knowledge of mobile architecture and state management, Experience improving developer tools, pipelines and workflows 📃 Skills: Android, iOS, Swift, Kotlin, KotlinMultiplatform, RBAC, Architecture, DevEx, Libraries, CICD 🏢 Description: emagine is looking for two Senior Platform Developers – one focused on Android and one on iOS – to help scale our client’s growing Platform team. Start: ASAP Length: 6 months with possible extension Location: Hybrid in Stockholm or Gothenburg About the role As a Platform Developer, you will not primarily work on end‑user features. Instead, you will collaborate closely with our internal customers: the feature development teams. Your mission is to build the foundation they rely on by creating a robust, scalable architecture and continuously improving our developer experience. Your responsibilities • Build shared components: Develop and maintain libraries used across all mobile teams. • Implement permissions‑based roles: Design and integrate RBAC (role‑based access control) into the platform for secure, seamless rights management in the apps. • Improve DevEx: Enhance tools, pipelines and workflows to make feature development faster, safer and more efficient. • Lead architecture standards: Define how data and state should be handled consistently across both Android and iOS. You are a great fit if you • Are a senior developer within your respective platform: Swift, Kotlin or Kotlin Multiplatform. • Are passionate about Developer Experience and platform architecture. • Enjoy enabling others by creating the infrastructure and tools they rely on rather than building individual features.