Fullstack Software Engineer at Siena | Warsaw

Join the Innovative Team at SienaAt Siena, we are pioneering the first intelligence layer for customer experience. Our vision is to create an operating system of AI agents that seamlessly learn, remember, and act across all customer touchpoints—from support interactions to shopping experiences, including voice and social media.Siena goes beyond mere automation; we empower shopping agents, foster persistent customer memory, deliver actionable business insights, and cultivate empathetic interactions that resonate with users.We are redefining how businesses comprehend and engage with their customers, transforming every interaction into a learning opportunity for future enhancements.About Our TeamOur small, distributed team is committed to making a significant impact. Each member plays a vital role, as we emphasize efficiency and creativity in our work, making collaboration both swift and enjoyable.If you’re passionate about creating groundbreaking products, this is your chance. We are developing agents that do more than just respond to inquiries; they remember customers, learn from each engagement, and unify experiences across channels.Your RoleAs a Fullstack Software Engineer at Siena, you will manage projects from inception to completion, enhancing and optimizing features within our AI-driven customer support automation platform. Collaborating closely with the product team, you will help shape our development roadmap while constructing reliable, high-performance systems. Your contributions will facilitate millions of customer interactions with global brands, where your work's reliability and speed will directly influence business success. If you enjoy tackling real-world challenges, excel in dynamic environments, and take pride in delivering exceptional products, this role is perfect for you.Your ResponsibilitiesDesign, develop, and maintain scalable features across the entire tech stack (frontend, backend, and infrastructure).Collaborate with Product to break down project scopes into iterative, impactful releases.Integrate advanced LLM capabilities into real-world enterprise workflows.Work on an AI-first product, embedding cutting-edge LLM capabilities into customer support frameworks.Address complex engineering challenges, optimizing API performance and refining microservices architecture.Enhance and maintain our cloud infrastructure (AWS) with a DevOps mindset.Exhibit high levels of agency and ownership—taking initiative, making decisions, and propelling ideas to production.

Join SienaAt Siena, we are pioneering the future of customer experience with our innovative intelligence layer. Our mission is to create a robust operating system for AI agents that learn, remember, and engage with customers across various touchpoints—from support interactions to shopping experiences, voice, and social media.Siena goes beyond mere automation; we empower shopping agents, cultivate persistent customer memories, deliver actionable business insights, and foster empathetic interactions that resonate with human qualities.We’re revolutionizing the way businesses comprehend and connect with their customers, transforming every engagement into valuable insights that enhance future interactions.The TeamOur team is small yet impactful, operating in a distributed manner that allows us to maximize our influence. Each member contributes significantly, leveraging our philosophy to work more efficiently and enjoyably.If you’re driven by the challenge of building something groundbreaking, read on. We are developing agents that don’t just respond to customers—they remember them, learn from every interaction, and seamlessly integrate experiences across channels.About the RoleAs the Engineering Manager, you will oversee teams tasked with building and deploying sophisticated AI agents tailored for customer experiences. This role transcends traditional engineering management; you will be involved in developing platform capabilities (AI pipelines, evaluations, integrations) and managing deployments for key clients.We seek a leader with a builder’s mindset, someone who approaches this role as if they were part of a founding team. Your passion for crafting the ultimate agentic operating system for customer engagement will shine through as you ensure our clients achieve remarkable success.Your ResponsibilitiesLead AI Agent Development: You will direct a team of engineers in creating and deploying high-performance, reliable AI agents for strategic clients. These systems will manage millions of customer interactions at scale, ensuring technical excellence and operational reliability.Ensure Client Success: You will be responsible for the deployment of agents across a portfolio of strategic accounts, driving their success through improved automation, enhanced quality, and effective management of escalations and customer reviews.Enhance the Platform: Your team's insights from customer engagements will inform platform improvements, driving innovation based on real-world deployment learnings.

Join our dynamic team at Inetum2 as a Senior Fullstack Software Engineer, where you'll be at the forefront of developing innovative software solutions. In this role, you will leverage your expertise in both frontend and backend technologies to build scalable applications that enhance user experience. Collaborate with cross-functional teams to design, develop, and maintain high-quality software products.

Join Box Inc. as a Senior Fullstack Software Engineer and take the next step in your career! We are looking for an experienced engineer who is passionate about building scalable web applications and innovative solutions. In this role, you will work collaboratively with cross-functional teams to design, develop, and maintain high-quality software that meets the needs of our clients.

About the Role nearmap is hiring a Software Engineer in Warsaw. This team focuses on developing solutions for aerial imagery, working together to solve technical challenges and improve products. What to Expect Contribute to projects that advance aerial imagery technology Work closely with colleagues in a collaborative setting Engage with complex problems and help build practical solutions Who We’re Looking For Experience in software engineering Comfort working as part of a team Interest in tackling technical challenges This position is based in Warsaw.

Join our dynamic API team as a Software Engineer, where you'll address the exciting challenges of delivering high-resolution aerial imagery and geolocation data at scale. Your responsibilities will encompass designing robust data pipelines and enhancing response times for intricate geospatial queries. In this role, you'll work closely with the Product team to transform ideas into reality, navigating various technology stacks to overcome complex technical obstacles. Whether you're scaling APIs, architecting innovative microservices, or refining developer integrations with our platform, your contributions will significantly influence how businesses leverage location intelligence to drive impactful decisions.

Join CreatorIQ, the leading operating system for creator-led growth, trusted by over 1,300 global brands and agencies. Our mission is to humanize businesses and empower individuals to make a significant impact. Our core values — being intentional, striving for excellence, embracing the journey together, and acting as good humans — guide us every day.Recognized as one of the best companies to work for by BuiltIn LA and NY, and featured on the Deloitte Technology Fast 500™ for four consecutive years, CreatorIQ has solidified its position as a leader in the influencer marketing space, as noted in the IDC MarketScape and The Forrester New Wave™. With a flexible work model that encourages collaboration and innovation, we adapt to the unique work styles of our team members.We are looking for passionate and innovative individuals to join our vibrant team and help us transform the industry!Your Role as a Software Engineer:As a Software Engineer, you will design, develop, and maintain scalable, high-performance software applications. Your strong technical skills and problem-solving abilities will enable you to collaborate effectively with cross-functional teams. You will take ownership of moderately complex tasks, contribute to system architecture discussions, and continuously enhance development practices while aligning with our business objectives.Key Responsibilities:Design, develop, test, and maintain software applications that fulfill both business and technical requirements.Write clean, efficient, and maintainable code, adhering to best practices and coding standards.Engage in code reviews, offering and accepting constructive feedback to maintain high-quality software.Develop and execute unit and integration tests to ensure system reliability.Debug and resolve software issues to guarantee system stability and performance.Contribute to discussions on software architecture, focusing on scalability, maintainability, and security.Leverage AI-powered tools to enhance coding efficiency, debugging, and performance analysis.

Join our dynamic team at Asana as a Junior Software Engineer, where you will play a pivotal role in shaping the future of work. We are seeking a candidate with foundational experience in software engineering. Whether your passion lies in web and desktop product development or mobile applications (Android), this position offers a remarkable pathway for professional growth, supported by our tailored boot camps and mentorship programs.Your contributions will be part of a world-class engineering team dedicated to developing innovative software solutions. We value creativity and forward-thinking, inviting you to tackle challenges and provide elegant solutions.This position is located in our Warsaw office with a hybrid work schedule. Standard in-office days are Monday, Tuesday, and Thursday, with the flexibility to work from home on Wednesdays. Working from home on Fridays may vary based on your specific role and team collaboration. If you proceed to the interview stage, your recruiter will provide detailed information regarding in-office expectations.Employees in Poland are employed under a contract of employment.

SKELAR is a pioneering Ukrainian venture builder dedicated to establishing international tech businesses. We collaborate with co-founders to assemble top-notch teams that excel in global markets.Currently, SKELAR operates a range of businesses across various niches, from EdTech to marketplaces. These companies consistently rank among the top startups and product firms in Ukraine, achieving high rankings in the App Store and creating platforms that millions use daily. Major media outlets like TechCrunch and Wired have featured SKELAR's businesses.We take pride in a robust team of over 1,000 specialists who possess remarkable expertise and ambitious goals. Our people are the most valuable asset of the company, and we strive to build businesses with the best talents available in the market.RiseGuide is an expert-driven microlearning mobile application designed around the principles and examples of exceptional role models. Our users are guided by insights from Andrew Huberman and Simon Sinek to break harmful habits, enhance their social media presence with strategies from Alex Hormozi and MrBeast, and develop charisma inspired by Robert Downey Jr. and Steve Jobs.Key Facts about RiseGuide:Achieved unit economics in just 6 weeks and have been actively scaling since (we had an incredible Q5 and grew fivefold last year).Over 200,000 paid users, with ratings of 4.6/5 on the App Store and 4.4/5 on TrustPilot.A team of over 60 individuals from successful tech businesses and top management programs worldwide.We aim to redefine the self-improvement industry, granting users access to expert knowledge on demand. To achieve this, we are seeking a Software Engineer (Golang) to help develop our product's backend and turn our ambitious goals into tangible achievements.What We Offer:Opportunity to make architectural decisions and build systems from the ground up.Minimal bureaucracy and maximum speed to market. A small team focused on results and rapid deployment.Fast feedback loops — your solutions will immediately impact production and influence hundreds of thousands of users.The chance to join the team early and define your area of responsibility.Pure Tech: modern stack with Zero Legacy.

Join Complexio, where our innovative AI platform revolutionizes business processes by efficiently managing and comprehending extensive enterprise data—both structured and unstructured. Utilizing proprietary models, knowledge graphs, and orchestration layers, we streamline human-computer interactions and autonomously execute intricate workflows on a large scale.As a joint venture between Hafnia and Símbolo, alongside partners such as Marfin Management, C Transport Maritime, BW Epic Kosan, and Trans Sea Transport, Complexio is at the forefront of redefining enterprise productivity through context-aware, privacy-first automation.This project is dedicated to enhancing business operations through cutting-edge artificial intelligence and advanced technologies, enabling intelligent data handling and automated decision-making. Our solutions are built with modern, high-performance architectures to guarantee efficiency, security, and scalability.

At Veeam Software, we pride ourselves on being the experts in Data and AI Trust, dedicated to empowering organizations to fully understand, secure, and ensure the resilience of their data and AI systems. Recognized as the market leader in data resilience and security posture management, we are perfectly positioned to navigate the convergence of identity, data, security, and AI risk. With our headquarters in Seattle and a presence in over 30 countries, we protect the operations of more than 550,000 customers globally, who rely on us to keep their businesses running smoothly. Embark on this exciting journey with us as we continue to innovate, learn, and create significant impacts for some of the world’s largest brands.About the RoleJoin us as we lead the charge in Kubernetes Backup and Disaster Recovery. Our Veeam Kasten platform is specifically designed for Kubernetes data management, providing enterprise operations teams with a seamless, scalable, and secure solution for backup, restore, disaster recovery, and application mobility. With our commitment to continuous optimization and enhancement, we are integrating our tools with SaaS services and expanding support for virtual machines hosted in Kubernetes, ensuring that we meet the evolving needs of our customers.

Role overview Alarm.com is looking for a Software Engineer skilled in C# and .NET to join the team at the EBS Warsaw office. The group focuses on building technology that enhances security and automation for both residential and commercial settings. What you will do Develop and maintain software using C# and .NET frameworks Create and support solutions that enable security and automation features Participate in all phases of the software development lifecycle, from design and coding to testing and deployment Location This role is based onsite in Warsaw, Poland, at the EBS office.

Dołącz do naszego zespołu jako Fullstack Developer (.NET + Angular) i pracuj z wiodącym klientem w branży ubezpieczeniowej. Będziesz odpowiedzialny za projektowanie oraz rozwijanie nowoczesnych aplikacji, które spełniają potrzeby naszych klientów. Jeśli posiadasz doświadczenie w .NET oraz Angular, ta oferta jest dla Ciebie!

Join our innovative team as a Senior Software Engineer focused on transforming business processes through cutting-edge artificial intelligence and advanced technologies. This project is dedicated to optimizing intelligent data handling and facilitating automated decision-making, utilizing modern, high-performance solutions that guarantee efficiency, security, and scalability.

Join Complexio, a pioneering joint venture at the forefront of AI innovation, dedicated to streamlining business processes through advanced automation. Our Foundational AI platform leverages comprehensive enterprise data—both structured and unstructured—to enhance productivity and drive intelligent decision-making.With a collaborative team of experts from diverse fields, we utilize proprietary models and knowledge graphs to optimize human-computer interactions and execute complex workflows autonomously at scale. Our mission is to redefine enterprise efficiency through context-aware, privacy-first automation.If you are passionate about harnessing AI and advanced technologies to transform business processes and are eager to contribute to a dynamic project, we invite you to apply!

Join Complexio, a pioneering company at the forefront of AI-driven business automation. Our Foundational AI platform revolutionizes enterprise productivity by efficiently managing both structured and unstructured data. Leveraging proprietary models, knowledge graphs, and orchestration layers, we empower organizations to enhance human-computer interactions and automate complex workflows seamlessly.As a joint venture established between Hafnia and Símbolo, and supported by esteemed partners including Marfin Management, C Transport Maritime, BW Epic Kosan, and Trans Sea Transport, Complexio is on a mission to redefine the landscape of business operations through privacy-first automation.Your role will focus on optimizing business processes using advanced AI technologies, facilitating intelligent data management, and enabling automated decision-making. Our solutions are designed for high performance, ensuring security and scalability in modern enterprises.

Join us at capital, a premier trading platform expanding globally. Our award-winning products, recognized for their advanced technology and exceptional client experience, set the standard in the industry. We are on the lookout for top-tier talent to join our dynamic engineering team.We are currently enhancing our Backend Team and seeking passionate Java Software Engineers with a keen interest in trading! Our engineering team is crucial in maintaining the performance, security, and reliability of our products. With a focus on delivering superior performance, ensuring compliance, and protecting client data, your contributions will significantly enhance the trading experience for our clients.We value engineers who not only write exceptional code but also embody our core values. We are searching for individuals who are ready to move quickly, willing to innovate and develop, who understand the importance of listening, respecting, and supporting, strive to exceed client expectations, and take full ownership for achieving real impact.

Join our dynamic team at Alter Solutions as a Senior Java Fullstack Developer, where you will leverage your expertise in Java and full-stack development to create innovative solutions. You will work collaboratively within a talented team, contributing to both frontend and backend development, and enhancing our software architecture.

Box creates Intelligent Content Management solutions that support collaboration, content lifecycle management, and information security for organizations worldwide. Since its founding in 2005, Box has worked with companies such as JLL, Morgan Stanley, and Nationwide. Headquartered in Redwood City, California, Box also maintains offices across the United States, Europe, and Asia. Every day, Box manages millions of files and data exchanges, including contracts and HR documents. The company’s mission centers on bringing intelligence to content management, enabling customers to streamline business workflows. Engineers at Box play a key role in applying AI to real-world collaboration challenges. Role overview The Relay Experience team in Warsaw focuses on improving workflow automation for Box users. Relay automates routine tasks for many large enterprises, helping users save time and maintain consistency across processes. This team is seeking a Senior Software Engineer who will take ownership of major system components, contribute independently, and help refine the experience for millions of Relay users each day.

Join our client, a leading international technology company, as a Senior Software Engineer and play a pivotal role in enhancing a sophisticated platform that champions supply chain transparency and product provenance. This innovative solution employs cutting-edge technologies, including distributed ledger systems, artificial intelligence, and 3D data matching, to deliver secure and verifiable information about products from their origin to the end consumer. By collaborating with producers, manufacturers, distributors, and retailers, the company fosters trust, authenticity, and ethical standards throughout intricate global supply chains. Their advanced blockchain technology is currently tracking millions of products globally, showcasing a significant achievement in real-world industry applications.