Senior Frontend 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

The Job in short Backbase is on a mission to help banks re-architect around the customer and embrace the era of Engagement Banking. We are looking for a Senior Backend Engineer to strengthen our team. As a Backend Engineer you will join a Product team in our Business Banking value stream within the R&D department and you will focus on creating a solution that allows banks to seamlessly service customers and employees by crafting memorable and engaging banking experiences. By joining Business Banking Tribe in Poland you will have the opportunity to work on Entitlements which provide a set of web journeys designed to control user access and limit what financial institution employees and customers can do with the resources they have access to. Positive Pay, a fraud prevention service enables bank customers to set multiple ACH rules for their accounts and forbid transactions that do not comply with the defined rules. And many more capabilities designed and built in Krakow.     Meet the Job As part of the team, you will contribute to new and existing functionalities, proof of concepts, and technical improvements that will be implemented in the Digital Banking Platform. Your autonomous team is responsible for the entire software development life cycle for the digital banking product suite: from idea to release. You are expected to take ownership of what you build and proactively collaborate with architects, QA engineers and other team members to ensure implementation is done according to our technical vision and best practices. R&D way of working is inspired by the Spotify Model. We are organized in Value Streams (e.g. Business Banking), Tribes, Guilds and Chapters where engineers can exchange knowledge and share new ideas. Business Banking squads follow Scrum with two-week sprints, delivering product increment in monthly releases. We offer a hybrid working model which is a location-flexible arrangement that allows people to combine on-site and off-site work.     How about you ● You have a solid background in software development including design; ● You are able to communicate clearly and confidently across all levels to get buy-ins from technical stakeholders as well as from your team members; ● Experience in the banking domain or Fintech products will be considered an advantage; ● You have excellent communication skills in English, spoken and written; ● You have a solid understanding of Java, Maven, CI and CD; ● You have experience with relational databases and Spring JPA / Hibernate; ● You have experience with microservices (Netflix OSS is a plus); Cloud and Apache Tomcat; ● You have experience with non-functionals such as security, performance, scalability etc.; ● You have a solid understanding of Enterprise Integration Patterns. Why Backbase? At Backbase, you’ll work in an environment that values innovation over bureaucracy. You will have the opportunity to own the AI lifecycle from ideation to global deployment, impacting millions of banking customers worldwide.

Lendo AB

At Lendo, we’re driven by a clear mission: to empower people to make smarter financial decisions. Our work directly impacts how users understand and navigate complex financial journeys, and we take that responsibility seriously. We’re looking for a Senior Frontend Engineer who wants real ownership, meaningful technical influence, and the opportunity to shape business critical user experiences used daily. THE ROLE You’ll join a cross-functional product team responsible for building and evolving Lendo’s core digital experience. You’ll work on user flows that are central to how our users interact with and benefit from our platform. You won’t just deliver features. You’ll help shape how we build them and take responsibility for how they evolve over time. As a Senior Frontend Engineer, you will: • Take end-to-end ownership of components and frontend architecture within your product area • Drive performance, scalability, and long term maintainability• Translate complex requirements into intuitive, high quality user experiences• Build reusable and well structured components• Contribute to technical standards and frontend best practices• Collaborate closely with product and design to navigate trade-offs and priorities• Influence technical decisions and participate in architectural discussions• Ensure quality through testing, observability, and continuous improvement We value engineers who go beyond their immediate tasks, proactively identify improvements, raise the technical bar, and follow through on outcomes. Our frontend stack centers around React in a mixed TypeScript/JavaScript codebase, integrated with Go-based backend services via REST API’s in a cloud-native environment using Kubernetes on GCP. We continuously evolve our architecture with a strong focus on performance, maintainability, and developer experience. WHAT WE’RE LOOKING FOR • 5+ years of professional frontend experience, including building and maintaining production systems• Strong React and TypeScript skills• Experience building and maintaining scalable frontend applications• Solid hands-on experience working with REST APIs, 3rd-party integrations, and CI/CD• Hands-on experience with Sentry and Playwright• Familiarity with tools such as GitHub Actions, Docker, Kubernetes, Git, and Yarn• A quality mindset where testing, reviews, and clean code are natural to you• Pragmatic decision-making, you understand trade-offs• A strong sense of ownership and accountability• Comfortable contributing to technical direction and architectural discussions Nice to have:• React Native• Next.js• Experience improving frontend performance• Experience contributing to design systems• Experience in A/B testing Skapa skillnad tillsammans med oss på Lendo 💚 På Lendo är kulturen lika viktig som de produkter och tjänster vi utvecklar. Vi tror på en vardag där tillit, transparens och lärande går hand i hand med driv, nyfikenhet och en vilja att få saker att hända. Tillsammans skapar vi en arbetsplats som inte bara levererar resultat - utan också lämnar ett positivt och hållbart avtryck. Vår framgång handlar inte om individer, den bygger på gemenskap. Vi vinner som ett lag, firar tillsammans och lär oss av det som inte gick som vi tänkt oss. Med energi och fokus på det som verkligen gör skillnad för våra kunder, jobbar vi varje dag för att hjälpa människor fatta smarta ekonomiska beslut som påverkar deras liv på riktigt. Vi tror på att ta ansvar men också på att ha varandras rygg längs vägen. Hos oss får du utrymme att växa, påverka och bidra med nya perspektiv, oavsett om du vill ta nästa steg i karriären eller förbättra hur vi hjälper vårakunder. För hos oss kommer kunden alltid först. Vi är stolta över att vara en del av Lendo Group och ännu mer stolta över det vi bygger tillsammans, varje dag.Vill du vara med på resan? 🚀