Fullstack Software Engineer Senior Level jobs in Warsaw – Page 6 | RoboApply Jobs

Fullstack Software Engineer Senior Level jobs in Warsaw· Page 6

Results 101–120 of 812 for “Fullstack Software Engineer Senior Level” in Warsaw.

812 jobs found

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Box Inc. logo
Full-time|On-site|Warsaw, Poland

Join our innovative team at Box Inc. as a Senior Staff Architect in Workflow Engineering, where your expertise will lead the design and implementation of cutting-edge workflow solutions. You will collaborate with cross-functional teams to enhance our platform, ensuring scalability, performance, and optimal user experience. This role presents a unique opportu…

Apr 1, 2026
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Satispay logo
Full-time|On-site|Poland, Warsaw

Important: This role requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for all. Our vision extends beyond payments; we aspire to redefine the future of finance. Join our movement that empowers millions, driven by a collective purpose to tackle significant challenges. We're just getting started, and we invite you to be part of this journey.We thrive on innovation, embrace bold thinking, and foster a culture of trust that encourages challenging the norm while continuously learning and evolving. If you seek more than just a job and wish to create a meaningful impact alongside a talented team, you are in the right place.Your RoleAs a Staff Software Engineer within the Consumer Wealth team, you will take on a pivotal role in shaping the financial futures of our users as they grow and manage their savings and investments. You will serve as the technical authority in the Consumer domain, spearheading initiatives that empower millions to achieve their financial well-being through our innovative savings products, invested money boxes, and investment solutions.Here’s a glimpse into your daily responsibilities:Strategic Technical Direction: Formulate the technical strategy for the Consumer Wealth domain. You will architect complex subsystems that facilitate savings and investment features, ensuring cross-product synergy while leading initiatives that impact multiple teams.Architectural Advancement: Design and construct scalable, high-quality systems that address intricate financial engineering challenges, including the management and simplification of our most complex back-end systems for savings and wealth management.Technical Leadership: Cultivate relationships across the organization to foster technical alignment, represent our technical vision both internally and externally, and remain at the forefront of emerging trends in FinTech and wealth management.Talent Development: Mentor the next generation of technical leaders and promote a culture of excellence in engineering and continuous improvement.Driving Impact: Contribute significantly to user wealth growth and help them achieve their financial aspirations through your work on the Consumer Wealth back-end infrastructure, directly advancing Satispay's mission.Expect a dynamic environment filled with challenges, collaboration, and the freedom to bring your innovative ideas to fruition. Our technology stack includes a variety of cutting-edge tools and platforms.

Feb 17, 2026
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moss logo
Full-time|On-site|Warsaw

Join Moss, where we empower finance professionals to automate their workflows and make strategic decisions.Our unique culture is centered around impact and growth, fostering an environment where each team member is encouraged to learn and succeed. Recognized by Sifted’s Rising 100 and LinkedIn's Top Startups, we aim to advance your career while making Moss a lasting success.Our Engineering teams are looking for talented Senior Backend Engineers (f/m/d) to join various teams in Warsaw. Open positions include:Sales EnablementPricing & BillingAcquisitionSpend ManagementActivation & Card SpendIn this role, you will collaborate closely with designers, product managers, and frontend engineers to bring innovative ideas to fruition, ensuring our product provides intuitive and efficient tools for business automation and simplification.

Feb 28, 2025
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Nord Security logo
Full-time|On-site|Warsaw

Join the forefront of online security technology with the world’s leading VPN provider!Are you a passionate problem-solver eager to make impactful contributions? Become a key player in the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—tools designed to restore privacy, security, and user control.Your role? Empower millions to reclaim their online security, privacy, and data integrity.As a Senior Backend Engineer on our Notification Center Team, you’ll be vital in designing and maintaining the microservices that facilitate seamless in-app notification delivery. We take pride in being the backbone of numerous features that depend on these notifications for smooth functionality. Our collaborative spirit drives us to work closely with other teams at Nord to pave the way for a scalable future.Ready to tackle the challenges of scalability, code quality, and service stability? Join our team of skilled engineers dedicated to technical excellence and help shape the future of NordVPN and its associated products!

Apr 12, 2026
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inetum2 logo
Full-time|On-site|Warsaw

Join our innovative team at inetum2 as a JVM Software Engineer / C Developer. In this role, you will leverage your expertise in Java Virtual Machine (JVM) and C programming to design, develop, and maintain high-quality software solutions.We are looking for someone passionate about technology, who thrives in a collaborative environment and is eager to tackle complex challenges. You will work closely with cross-functional teams to deliver robust applications that meet our clients' needs.

Nov 26, 2025
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Box, Inc. logo
Full-time|On-site|Warsaw

We are seeking a talented and motivated Staff Software Engineer specializing in React Native to join our dynamic team at Box, Inc. In this role, you will be instrumental in developing innovative mobile applications that enhance user experience and drive engagement.Your responsibilities will include collaborating with cross-functional teams to define and design new features, maintaining existing applications, and ensuring code quality through best practices and testing.

Apr 3, 2026
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Satispay logo
Full-time|On-site|Poland, Warsaw

Please be aware that this position requires relocation to our Milan office.About SatispaySatispay aims to transform everyday payments, making them straightforward, equitable, and accessible to all. Our mission has evolved to shape the future of finance.We are a movement empowering millions, united by a common goal to address significant challenges. We act swiftly, think innovatively, and trust one another to question the status quo, continuously learning and evolving.Joining the Core Team, you will be engaged with critical systems that manage interactions with external banks, orchestrate payments, and establish essential infrastructures for Identity and Access Management (IAM). The team also handles risk services, specifically credit risk management and fraud detection.If you're eager to contribute to something impactful that underpins our product teams, you've found the right place.Your ResponsibilitiesAs a Senior Backend Software Engineer on the Core Team, you will play a vital role in architecting the backbone of our payment platform. You will ensure the technical quality and timely delivery of complex systems that have a significant impact across various services and product teams.Your daily tasks will include:Engineering core platform domains: Contributing to the design and development of our most critical systems, including the Transaction Ledger, Identity & Access Management (IAM), and Payment Orchestration. You will ensure these systems remain high-performing, scalable, and functional for seamless integration by our product teams.Scaling risk & financial engines: Optimizing and implementing services dedicated to bank integrations, credit risk, and real-time fraud detection, building robust logic that safeguards our financial ecosystem.Cross-team technical leadership: Leading technical analysis for projects across multiple services, facilitating discussions, and producing high-quality documentation (Smart Papers) that ensure clarity and robustness in your designs for stakeholders and other engineering teams.

Mar 18, 2026
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Nearmap logo
Full-time|On-site|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.

Mar 2, 2026
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Point72 Asset Management logo
Full-time|On-site|Warsaw

Join Point72 as a Software Engineer focused on Enterprise Systems, where you will play a crucial role in developing and maintaining innovative software solutions that drive our business operations. Collaborate with cross-functional teams to design, implement, and optimize software applications that enhance the efficiency and effectiveness of our enterprise systems.

Mar 26, 2026
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Box, Inc. logo
Full-time|On-site|Warsaw, Poland

Role overview Box, Inc. is looking for a Software Engineer III in Warsaw, Poland to focus on governance. This position involves building and maintaining frameworks that help Box’s software solutions meet compliance needs and support efficient operations. What you will do Develop and improve governance frameworks that strengthen product compliance and effectiveness. Collaborate with teams from various disciplines to design systems that move governance initiatives forward. Support alignment of software solutions with internal standards and regulatory requirements.

Apr 23, 2026
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Moss logo
Full-time|On-site|Warsaw

Join Moss, where we empower finance professionals to automate their daily tasks and make strategic decisions.Our unique culture is driven by impact and growth, with every team member dedicated to learning and excelling. Recognized by Sifted’s Rising 100 and LinkedIn's Top Startups, we are committed to propelling your career and achieving lasting success together.We are looking for talented **Mid-Level Backend Engineers (f/m/d)** to join various teams in our Warsaw office, including:Sales EnablementPricing & BillingAcquisitionSpend ManagementActivation & Card SpendIn this role, you will collaborate closely with designers, product managers, and frontend engineers to bring innovative ideas to life. Your goal will be to ensure that our product simplifies and automates everyday tasks through intuitive and efficient tools.

Apr 29, 2025
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42dot logo
Full-time|On-site|Warsaw, Poland

Join 42dot as an Operating System Tool Software Engineer in Warsaw, Poland. We are looking for talented engineers to help us develop state-of-the-art software tools that enhance operating system functionalities. The ideal candidate will have a passion for technology and a keen eye for detail.

Mar 27, 2026
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Bolt logo
Full-time|On-site|Warsaw, Poland

Bolt is looking for a Senior Full Stack Engineer in Warsaw to help shape and expand an internal task management platform. This role centers on building systems that support real-time decision-making and optimize workflows for agents. What you will do Develop and enhance features for the internal platform, focusing on dynamic task distribution and intelligent workforce management. Create efficient user interfaces that enable agents to work effectively and access actionable insights. Lead frontend architecture decisions and guide the technical direction of the team. Work across the full technology stack, collaborating with engineers and stakeholders. Role overview This position involves tackling product and engineering challenges, from designing scalable interfaces to implementing systems that streamline internal operations. The Senior Full Stack Engineer will play a key part in both technical leadership and hands-on development.

Apr 22, 2026
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Nord Security logo
Full-time|On-site|Warsaw

Join the NordPass Team to Revolutionize Password Security!At NordPass, we strive to make online password management effortless and secure. With over 7 million users and 10,000+ companies relying on us, we are committed to providing a premium password manager that safeguards credentials, cards, and sensitive information.Your Contribution: Play a pivotal role in enhancing digital security for millions by developing innovative and secure login solutions.Key ResponsibilitiesCollaborate with cross-functional teams to integrate and optimize microservices across NordSecurity's product ecosystem, ensuring a seamless user experience.Prioritize the delivery of high-quality, scalable, and secure code.Engage in key technical and architectural decisions, refining development processes and shaping the strategic direction of our products.Demonstrate strong ownership over product development, maintenance, and quality assurance.Facilitate effective communication and collaboration among engineering, product, and design teams.Essential QualificationsExtensive experience with PHP (3+ years).Hands-on experience with AI tools to enhance engineering (e.g., code generation, test creation, performance optimization, and debugging), demonstrating accountability for outcomes.Proficient in system design, with a clear understanding of design patterns and their applications.Solid grasp of Object-Oriented Programming (OOP), asynchronous programming, and design patterns.A genuine passion for architecture and technology; we want to hear from those who can create scalable and robust code.Familiarity with core CI/CD principles, unit testing, and integration testing.Preferred QualificationsKnowledge of cryptography.

Apr 12, 2026
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Nordsec logo
Full-time|On-site|Warsaw

We are seeking a highly skilled Senior Automation Quality Assurance Engineer to join our dynamic team at Saily. In this role, you will lead the development and execution of automated testing strategies to ensure the highest quality of our applications. You will collaborate closely with cross-functional teams to identify quality issues and drive improvements.

Mar 16, 2026
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Telemedi logo
Full-time|Remote|Remote — Warsaw, Masovian Voivodeship, Poland

Telemedi is at the forefront of healthcare innovation, dedicated to employing talented developers and medical professionals to create modern solutions that simplify life for both patients and healthcare providers. Our mission is to leverage technology to ensure that everyone has convenient and immediate access to medical care.We are seeking an experienced Head of Software Engineering to lead our PHP development team and collaborate with us in creating cutting-edge technological solutions.Your Responsibilities:Manage the development team and coordinate their workParticipate actively in the programming process with a hands-on approachIntroduce and advocate for new technologies and AI tools to enhance programming effortsEstablish and monitor code quality standardsOptimize software development processesCollaborate with other departments in product creation and developmentMentor and develop the skills of team membersParticipate in strategic technology planning for the companyOversee timely project delivery in alignment with established goals

Apr 8, 2025
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Tietoevry logo
Full-time|On-site|Warsaw

Join Tietoevry as a Junior Software Engineer specializing in C language, where you'll contribute to innovative telecommunications solutions. Be part of a dynamic team that pushes the boundaries of technology and drives growth.

Apr 2, 2026
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CreatorIQ logo
Full-time|Hybrid|Warsaw

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.

Apr 1, 2026
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Box logo
On-site|On-site|Warsaw, Poland

Join Box as a Senior Software Engineer specializing in File Systems and play a pivotal role in enhancing our innovative content management platform. At Box, we empower organizations to thrive in the AI-first era by optimizing collaboration and workflow management. As part of the Content Capabilities team, you'll contribute to our ambitious goal of supporting the Box Content Cloud's exponential growth by developing new platform features that enable intuitive user experiences. Collaborate with a talented team to tackle complex challenges in content management and make a significant impact on productivity for millions of users at leading enterprises.

Feb 2, 2026
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SKELAR logo
Full-time|On-site|Warsaw

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.

Feb 18, 2026

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