Senior Backend Engineer

Backbase

The Job At Backbase, we don’t just deliver software – we redefine how people manage their finances. We are looking for a Senior AI Applied Software Engineer to join our R&D department in Kraków. You will join the team which sits at the core of Backbase platform: Entitlements. Handling complex problems related to Access Control, Approvals and Limits. By joining our team, you won’t just write code; you will design systems that impact millions of users across over 100 financial institutions worldwide. Meet the Job As a Senior AI Applied Software Engineer  you are a technical cornerstone of your squad. You will design and deliver complex features with minimal guidance, ensuring that both the "engine" (Backend) and the "experience" (Frontend) are performant, secure, and scalable. * Full SDLC Ownership: Lead the entire lifecycle of digital banking products—from initial idea and architectural design to release and maintenance. * Architectural Excellence: Improve system architecture and design components that integrate smoothly across APIs and microservices. * Technical Leadership: Act as a go-to resource for your team, mentoring junior engineers, conducting critical code reviews, and raising the bar for engineering standards. * AI & Innovation: Contribute to the evolution of LLM-based voice assistants and real-time personalization engines using OpenAI and ML models. * Security-First Mindset: Implement "Entitlements" and fraud prevention services with a focus on non-functional requirements like security, scalability, and resilience. * Collaborative Culture: Work in a Pod based model, collaborating with Architects, Product Owners, and UX Designers to align technical solutions with business needs. Who You Are * Location: You live in Kraków or nearby area and you are willing to work in a hybrid mode - twice per week from our office.  * Experience: You have 5–7+ years of professional experience building complex, high-traffic products. * Backend Mastery: Solid understanding of Java, Spring JPA/Hibernate, and Maven. Experience with Microservices (Netflix OSS is a plus) and Cloud technologies. * Frontend Expertise: Strong skills in Angular and TypeScript. You are proficient with RxJS and modern build systems (Webpack, Jenkins). Experience with Vue.js is a plus. * System Design: You have a solid grasp of Enterprise Integration Patterns and can design systems that handle complex data flows between services. * The "Senior" Edge: You don't just solve tickets; you identify gaps in tooling, reduce technical debt, and optimize CI/CD pipelines to streamline delivery. * Communication: Excellent English (spoken and written). You can confidently explain technical concepts to non-technical stakeholders and get buy-in for your architectural decisions. * Domain Knowledge: Previous experience in Fintech or Banking is highly considered an advantage. What We Offer * Growth: €1,000 annual self-development budget, a clear promotion path, and dedicated time for training. * Rewards: Competitive base salary plus an annual bonus and referral bonuses. * Hybrid Work: A flexible arrangement combining remote work with our vibrant Kraków office. * Office Perks: Daily lunches, community breakfasts on Wednesdays, and high-end hardware (MacBook). * Well-being: Private healthcare (Luxmed), Headspace app subscription, and a Work-From-Home allowance. * Culture: Integration events, flexible working hours, and a focus on healthy work-life balance.

Backbase

Backbase is on a mission to help banks re-architect around the customer and embrace the era of Engagement Banking.  We are now seeking a Senior Front End Software Engineer to join one of our development teams. This team is dedicated to enhancing our Customer Support capability, a key component of the Backbase Native AI Banking Platform. Our Customer Support capability allows banks to provide their customers with exceptionally fast and efficient support, including embedded agentic/conversational AI aspects to provide a seamless customer support experience. Meet the job ●Build responsive web applications using Angular and TypeScript that are clean, testable, scalable, and easily maintainable; ●Collaborate with cross-functional teams to analyse requirements and deliver high-quality solutions; ●Take full ownership of the Customer Support capability throughout its lifecycle, embodying a "you build it, you own it" mindset; ●We provide a flexible working model that allows employees to work both on-site and remotely. How about you ● You are a software engineer with 5+ years relevant experience, with a focus on building scalable, resilient, and accessible user-friendly web experiences; ● You possess expert knowledge of Angular, Typescript, CSS, and HTML; ● You are familiar with the objectives of modern frameworks like Angular and understand their core architectural principles; ● You have significant experience in testing frameworks including Jest, Cypress, and Playwright; ● Experience with Nx is an advantage; ● You have a strong understanding of reactive programming with RxJS; ● You have strong communication skills, enabling you to confidently engage with stakeholders at all levels and secure buy-in from both technical leads and team members; ● You are passionate about embracing AI/ML tools such as GitHub Copilot, Cursor AI, and Windsurf, and you enjoy shaping the product or platform’s functionality with AI; ● Experience with Fintech products or the banking industry is a plus; ● You have experience in areas such as security, performance, and scalability.

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.