Senior Java AWS Developer

Lynqa AB

Ett techbolag som bygger högpresterande, molnbaserade system för spel- och bettingindustrin. Från kontoret i centrala Stockholm driver de utvecklingen av transaktionsintensiva plattformar där innovation och prestanda står i centrum – system som måste leverera dygnet runt, i realtid. Bolaget grundades av branschveteraner från några av spelindustrins största aktörer, med ambitionen att göra saker annorlunda. Teamet består av cirka 50 personer fördelade mellan Stockholm och Malta. Här bygger du inte bara features – du är med och formar hur en modern, event-driven mikrotjänstarkitektur utvecklas vidare. Om rollen Vi söker en Senior Java Backend Developer som vill ta en nyckelroll i utvecklingsteamet. Du arbetar nära andra utvecklare, DevOps och produktteam för att vidareutveckla en komplex och affärskritisk plattform. Rollen passar dig som trivs i en senior, hands-on roll med stort tekniskt ansvar. Du designar och bygger backend-tjänster i Java och Spring Boot, arbetar med event-driven kommunikation via Kafka och bidrar till arkitekturbeslut i nära samarbete med teamet. Du blir en del av ett utvecklingsteam på 16 personer med låg byråkrati, hög teknisk höjd och stark kultur – "frihet under ansvar" i praktiken. Vad du kommer göra Designa och utveckla backend-tjänster i Java med Spring Boot Bygga och förbättra en event-driven mikrotjänstarkitektur med Kafka Bidra till arkitektur- och designbeslut kring modularitet, prestanda och skalbarhet Arbeta med hela utvecklingscykeln – från design till deploy i AWS Säkerställa kodkvalitet genom code reviews, testning och kontinuerlig förbättring Samarbeta med utvecklare, DevOps och produktteam i ett tight, tvärfunktionellt team Vem vi söker Must-haves: Minst 5 års professionell erfarenhet av Java-backend Djup erfarenhet av Spring / Spring Boot Praktisk vana vid mikrotjänster och event-driven arkitektur (Kafka eller liknande) Avancerad backend-bakgrund – du har löst svårare problem än middleware mot databaser Erfarenhet från mindre eller medelstora bolag där du haft brett ägarskap Flytande svenska och engelska EU-medborgarskap eller giltigt arbetstillstånd inom EU Personlighet: Självgående, tar ägarskap, trivs med teknisk komplexitet Meriterande: Erfarenhet från spel- eller bettingbranschen Kunskap om distribuerade system, hög tillgänglighet och prestandaoptimering Erfarenhet av AWS och Linux-baserade miljöer Erfarenhet av CI/CD-processer och containerisering Vad vi erbjuder Nyckelroll i ett tekniskt utmanande och växande bolag Konkurrenskraftig lön Friskvårdsbidrag och regelbundna hälsoundersökningar Pensionsavsättningar Möjligheter till kompetensutveckling – både tekniskt och personligt Platt organisation med korta beslutsvägar och startup-atmosfär Kollegor som genuint bryr sig om teknik och kvalitet Praktisk info Plats: Centrala Stockholm Anställningsform: Tillsvidareanställning Arbetsmodell: Office-first – fyra dagar på plats Start: Enligt överenskommelse Språk: Svenska och engelska (krav) Rekryteringsprocess Första samtal med Lynqa Intervju med teamet – teknik och kultur Fördjupad teknisk intervju Referenstagning Erbjudande Om anställningen Omfattning: Heltid, tillsvidareanställning Start: Enligt överenskommelse Placering: Centrala Stockholm Detta är en direktrekrytering. Lynqa ansvarar för rekryteringsprocessen. Om Lynqa Lynqa är din karriärpartner inom tech. Vi arbetar med utvalda produktbolag och techteam i framkant – roller du sällan ser på vanliga jobbsajter. Hos oss får du snabb återkoppling, en personlig kontakt och tillgång till möjligheter innan de annonseras. Nyfiken på vad som finns? Hör av dig till mischell@lynqa.se Lynqa – we connect people

Qbtech AB

Would you like to take part in transforming healthcare? Qbtech is the global market leader in professional ADHD tests, providing tests that are both CE marked and FDA cleared for use as an aid in the assessment and treatment evaluation of ADHD for people age 6-60. Our vision is to transform healthcare by providing a complete system of leading objective tests, products and services that empowers clinical and financial decision-makers to improve outcomes and support patients to better understand their symptoms and treatment. Qbtech is present in 14 countries with offices in Stockholm, London and Houston. Over the next years, Qbtech will make significant investments into new products, technologies and people to further strengthen their services and product offerings with the aim of building an ecosystem with solutions for providers, clinicians and patients. About the role We are looking for a Senior Software Engineer (SSE) for backend works in our product engineering team with systems / services development for the Qbtech platform. Primary implementation languages are Java & Kotlin. The main focus of the work is coding (development) but an SSE works with the entire software delivery lifecycle. The role is based in Stockholm, Sweden and will report to Engineering Manager.  There is no possibility of a complete remote role. This is Hybrid with at least 3 days a week from office. Essential Duties and responsibilities Qbtech’s development of products and services are controlled by Qbtech Quality Management Systems, international standards and certificates as well as specific laws. In accordance with those, essential duties and responsibilities are: Develop and document new product features & stories. Code reviews for peers. Maintain and improve legacy code. Manage DevOps and cloud infrastructure provisioning. Manage software deployment. Troubleshooting/investigation of incidents and bug fixing. We are looking for someone who has Extensive development skills using Java and Kotlin. Strong problem-solving mentality. Knowledge of the Ktor framework. Knowledge of at least one well known test framework such as Junit. Good knowledge of network infrastructure related to web application (examples: load balancer, firewall, security groups, CDN etc.). Experience of working with service provisioning for at least one of the following cloud services platforms (AWS, Google Cloud, Microsoft Azure). Experience of an infrastructure as code (Terraform). Experience with containerization (Docker). Experience from working with Agile development methodologies. Excellent written and verbal skills. At least 6-8 years documented experience. Qualifications Required for Position: Bachelors / Master’s degree in Computer Science or related field. Fluent in English. What can Qbtech offer you? At Qbtech you will have the opportunity to work with something meaningful that helps people understand ADHD while transforming healthcare. You will work in an international environment together with some of the leading experts in the world. You will lead the development of best in class as well as first in class products and services – globally. There are plenty of opportunities to learn and grow and to expand into other technologies within the company. Qbtech also offers education and certifications in fields that are relevant to the technology used within the company.

ASSA ABLOY AB

Build technology that protects people, places, and everyday life. Your work won’t sit quietly in a backlog. It will shape secure, connected solutions used around the world — and you’ll have the trust and freedom to do your best work along the way. Why this role matters At Assa Abloy, technology plays a direct role in creating a safer, more open world. As a Senior Backend Engineer, you’ll be part of teams building secure, scalable digital platforms that power smart access solutions globally. This is a role for someone who wants to own meaningful problems, contribute to technical direction, and work in an environment where quality, balance, and long-term thinking genuinely matter. The role You’ll work as part of a small, cross-functional team with shared end-to-end responsibility, collaborating closely to drive work from idea to delivery and continuous improvement. The team owns both the direction and execution, with a strong focus on improving our customers’ hospitality experience. In this role, you’re expected to take initiative and help move work forward, ensuring progress and alignment across disciplines. You’ll challenge assumptions, surface risks early, and contribute to sound technical decisions by bringing clarity, pragmatism and focus to complex discussions while helping the team deliver meaningful, high-quality outcomes. What you’ll work on Deliver meaningful features end-to-end — design, build, test, deploy, and evolve backend-focused services with a strong sense of ownership and quality. Build modern, scalable systems — develop primarily in Java, Kotlin, Golang, collaborating with frontend engineers and contributing where needed to React/TypeScript applications. Shape architecture and technical direction — apply Domain-Driven Design, Test-Driven Development, microservice and event-driven patterns to solve complex problems and raise the bar across the team. Lead cloud-native development — design and operate services on AWS, using containers, orchestration platforms, and serverless patterns to build resilient, future-proof solutions. Design data and system behaviour at scale — model data across NoSQL and relational systems, ensuring performance, reliability, and secure operation in distributed environments. Strengthen delivery and operational excellence — improve CI/CD pipelines, support production systems, and continuously refine engineering practices for long-term sustainability. What will help you succeed Solid senior experience (5+ years) building backend systems in cloud-native, distributed environments. Strong ownership mindset — you’re comfortable taking a feature from idea to production and standing behind your decisions. Architectural judgement — you know when and how to apply DDD, TDD, microservices, and event-driven design pragmatically. Hands-on cloud and DevOps experience — particularly with AWS, containerisation, CI/CD, and modern deployment models. Experience leveraging AI-assisted development tools and methods to enhance productivity, code quality, and system design. Clear, thoughtful communication and a willingness to mentor others. Why Assa Abloy At Assa Abloy, you’ll join a global organisation with a distinctly Scandinavian approach to work: trust over control, clarity over noise, and people over process. Meaningful mission — Your software helps protect homes, businesses, and communities around the world, contributing to solutions people rely on every day Innovation at scale — Work with modern cloud platforms, event-driven architectures, and evolving technologies in a global environment Autonomy and trust — You’re trusted to make decisions, influence design, and own your work from idea to impact Growth and development — Learn continuously, deepen your technical expertise, and explore opportunities across teams and borders Work–life balance — Flexible working, hybrid options, and a culture that supports sustainable performance Ready to build something that matters? If you’re looking for a senior developer role where your skills, judgement, and wellbeing are genuinely valued, we’d love to hear from you. Apply today and bring your expertise to a role where your decisions truly shape the future of smart access. We review applications continuously, so don’t wait. We’re committed to building diverse, inclusive teams and encourage applications from all who see themselves thriving here. To make sure your personal data stays protected, we do not review applications sent via email or post. If you have questions about the role or process, contact Léa Rein, Senior Talent Acquisition Business Partner. Let’s create a safer and more open world — together. We are the ASSA ABLOY Group Our people have made us the global leader in access solutions. In return, we open doors for them wherever they go. With nearly 63,000 colleagues in more than 70 different countries, we help billions of people experience a more open world. Our innovations make all sorts of spaces – physical and virtual – safer, more secure, and easier to access. As an employer, we value results – not titles, or backgrounds. We empower our people to build their career around their aspirations and our ambitions – supporting them with regular feedback, training, and development opportunities. Our colleagues think broadly about where they can make the most impact, and we encourage them to grow their role locally, regionally, or even internationally. As we welcome new people on board, it’s important to us to have diverse, inclusive teams, and we value different perspectives and experiences.