Senior Java Engineer at N-iX | Poland

N-iX is a prominent global software development firm established in 2002, uniting over 2,400 skilled tech professionals across more than 40 countries. We specialize in delivering cutting-edge technology solutions in cloud computing, data analytics, artificial intelligence, embedded software, Internet of Things (IoT), and more, serving industry leaders and Fortune 500 companies worldwide. Join our mission to develop technology that brings significant transformation to businesses and individuals globally.We are seeking a skilled Senior Software Engineer to contribute to our AI project in Europe.Key Responsibilities:Design and implement a robust and scalable Kotlin framework and platform for configuring and managing AI agents.Develop clean, maintainable, and efficient code adhering to our coding standards.Ensure optimal performance, quality, and responsiveness of the framework/platform.Identify, troubleshoot, and resolve bottlenecks and errors.Assist in maintaining code quality, organization, and automation processes.Create and manage technical documentation for the framework/platform.

Join N-iX, a leading global software development service provider, and be part of a dynamic team that is shaping the future of technology. Established in 2002, our company comprises over 2,400 talented professionals across more than 40 countries, collaborating to deliver cutting-edge software solutions for top-tier businesses and Fortune 500 companies. Our areas of expertise include cloud computing, data analytics, artificial intelligence/machine learning, and Internet of Things (IoT), driving significant digital transformation in sectors such as finance, manufacturing, telecommunications, and healthcare.We are seeking a motivated and seasoned Senior Customer Engagement Manager to manage the complete sales lifecycle—from lead qualification to contract finalization—and act as the main point of contact during the first year of client partnerships. This role is ideal for a driven individual who enjoys taking ownership of results rather than merely performing tasks.As the end-to-end deal owner, you will lead and coordinate the presales team, craft effective sales strategies, and take personal responsibility for converting qualified leads into contractual agreements while ensuring robust client relationships from the outset.Key Responsibilities:Deal Ownership & Sales ExecutionOversee the entire sales process from initial lead qualification through to contract execution, with full accountability for outcomes at each phase.Design and implement customized sales strategies for each opportunity, adjusting your approach to align with client contexts, decision-making frameworks, and competitive landscapes.Lead and manage the deal team throughout the presales process, engaging internal stakeholders (solution architects, delivery leads, legal, finance) to create compelling, client-specific proposals.Maintain disciplined pipeline management—assess incoming opportunities, prioritize based on strategic alignment and revenue potential, and ensure an accurate, up-to-date CRM (Salesforce).Client Engagement & Relationship ManagementServe as the primary point of contact and trusted advisor for prospective clients, ensuring an exceptional onboarding experience that fosters long-term relationships.

N-iX is seeking a talented Senior Full-Stack Engineer (Spanish-Speaking) to enhance our dynamic team. Our client stands as a global leader in the fashion retail industry, with operations in over 200 markets through e-commerce platforms and thousands of physical stores worldwide. This company is dedicated to managing the entire fashion value chain—from design and manufacturing to distribution and retail—with a strong emphasis on flexibility, digital integration, and sustainability. Technology is pivotal across all sectors, including retail, e-commerce, logistics, and supply chain. Our engineering teams operate within small, autonomous product teams that oversee the complete lifecycle of the solutions they develop. We encourage our engineers to grasp the broader business context, collaborate directly with stakeholders and users, and actively influence both technical and product decisions.

N-iX is a prominent global software development company with Ukrainian roots, dedicated to assisting businesses around the world in creating successful software products. With over two decades of experience, N-iX has established partnerships with technology firms, enterprises, and startups, delivering high-quality software solutions and fostering robust engineering teams across Europe.We are seeking a Senior Automation QA Engineer to join our team, contributing to the development of a large-scale enterprise facility management platform for a leading US-based product company. In this pivotal role, you will be responsible for designing, implementing, and maintaining automated tests, enhancing test coverage, and supporting performance testing initiatives.

N-iX is a global software development company with more than 2,400 professionals across over 40 countries. Since 2002, N-iX teams have delivered software solutions for clients in industries such as finance, manufacturing, telecommunications, and healthcare. Areas of expertise include cloud computing, data management, AI and machine learning, embedded software, and IoT. Role overview The Gen AI Adoption Lead in Engineering Productivity will join a team focused on helping engineering groups explore and integrate generative AI into daily workflows. The role centers on hands-on experimentation, learning through trials, and sharing practical insights as generative AI adoption expands within N-iX. What you will do Test generative AI tools and approaches within real engineering processes Document outcomes from hands-on trials, noting both successes and challenges Share practical guidance and findings with engineering teams Support colleagues as they begin using new AI-powered tools and methods Who will succeed Engineers who are curious and open to trying new approaches Individuals comfortable learning through experimentation and occasional setbacks Those who enjoy supporting others as they learn and adapt Experience with tools such as Copilot, Claude, Cursor, or prompt engineering is a plus Location This position is based in Poland.

N-iX stands as a leading global software development firm, established in 2002, boasting a vibrant community of over 2,400 technology experts across more than 40 countries. We specialize in delivering cutting-edge technology solutions encompassing cloud computing, data analytics, artificial intelligence, embedded software, IoT, and other domains, serving prominent industry leaders and Fortune 500 companies. Become a part of our mission to innovate technology that instigates real transformation for businesses and individuals around the globe. Our client, a renowned UK-based financial services and investment banking entity, is pioneering an AI-driven document processing and automation platform utilized across various sectors of the broader banking group. This platform harnesses state-of-the-art cloud and AI technologies to revolutionize outdated workflows, elevate data integrity, and expedite digital decision-making. Position Overview: We are in search of a Tech Lead Full Stack Engineer who possesses robust hands-on engineering proficiency and is adept at leading agile software development teams. The ideal candidate will be responsible for defining and steering the technical strategy of the platform, mentoring engineers in the delivery of scalable and secure systems, and actively participating in architectural decisions and solution design. This position demands a mix of profound technical knowledge and leadership skills, especially in environments utilizing Google Cloud, microservices, APIs, Python, and data-heavy processing. The Tech Lead will collaborate closely with product, architecture, data science, and engineering teams to guarantee superior delivery and alignment with business objectives. Join Our Team & Earn Exciting Bonuses!We are thrilled to offer a Welcome Bonus of $3,000 USD for new hires. Additionally, if you refer a friend who is successfully hired, you will receive a Referral Bonus of $2,000 USD! Key Responsibilities: Articulate and communicate the technical vision, architecture, and engineering roadmap for the team and platform. Guide engineers, perform code reviews, offer architectural guidance, and ensure compliance with engineering standards. Steer the technical delivery lifecycle from design through development to deployment and maintenance. Create scalable, high-performance microservices, UIs, and APIs utilizing modern frameworks and cloud-native design principles. Oversee the integration of AI components (e.g., Google Cloud, Vertex AI, Gemini models, and LLM evaluation frameworks). Encourage test-driven development and promote best practices within the team.

N-iX is seeking a skilled Lead Azure DevOps Engineer to join our team and contribute to the success of our client’s projects. In this pivotal role, you will focus on designing, implementing, and maintaining a robust Azure-based cloud infrastructure. This infrastructure is essential for driving connected safety systems, enabling secure data ingestion from mobile and embedded devices, and managing scalable storage solutions for telemetry and crash data. Your collaborative efforts with mobile, embedded, and algorithm teams will ensure seamless integrations, and you will play a key role in deploying machine learning models for crash detection while adhering to cybersecurity and data privacy standards.

N-iX is a global software development company founded in 2002, with over 2,400 technology professionals working across more than 40 countries. The company delivers solutions in cloud computing, data analytics, artificial intelligence, embedded software, IoT, and more, supporting industry leaders and Fortune 500 clients. Role Overview The Lead Observability Engineer will shape and advance the observability platform at N-iX, with a focus on ClickHouse as the core telemetry storage. This role leads the migration from a custom Cosmos telemetry system to ClickHouse, ensuring strong alerting, notification, and telemetry features. The position is remote, based in Poland, and follows a 15:00 - 23:00 CET schedule. As an individual contributor, this engineer reports directly to the Senior Manager. About the Team The Cloud Engineering team values collaboration and curiosity. Team members build and maintain mission-critical cloud solutions that support millions of users worldwide. Agile methodologies, DevOps, and infrastructure as code guide the team's approach, with a focus on reliability, scalability, and security. What You Will Do Lead the migration of telemetry storage from custom Cosmos DB solutions to ClickHouse, building a scalable observability platform. Architect, implement, and maintain alerting and notification systems integrated with ClickHouse for critical applications and services. Develop, deploy, and operate high-throughput telemetry pipelines to support accurate monitoring in cloud environments. Work with engineering and product teams to promote observability best practices. Design and build dashboards and visualization tools for proactive monitoring and incident detection. Partner with DevOps and development teams to automate log, metric, and trace collection, ingestion, and retention policies. Drive ongoing improvements in system performance, stability, and reliability through observability. Participate in on-call rotations, incident response, and root cause analysis to strengthen monitoring and alerting. Work Culture N-iX values transparency and open communication. Team members are encouraged to share ideas and insights, contributing to a workplace that aims to benefit employees, customers, and communities globally.

Join Turnitin as a Senior Fullstack/Backend Software Engineer, where your expertise in backend development, particularly with Java and serverless architectures, will be pivotal. We are seeking engineers who are enthusiastic about creating scalable distributed systems and delivering robust software solutions for our acclaimed educational platform.As an integral member of our shared services team, you'll spearhead the development and enhancement of the core systems supporting both our existing and upcoming applications.Key Responsibilities:Architect, develop, and optimize scalable backend services utilizing Java and serverless technologies (AWS Lambda).Design and implement RESTful APIs and event-driven architectures.Contribute to frontend component development as required.Enhance performance and cost-effectiveness of existing services.Collaborate with cross-functional teams, including Architects, Product Managers, and engineering leads, to deliver innovative solutions.Mentor junior developers and promote best practices.Establish and manage CI/CD pipelines.Maintain high-quality coding standards through peer reviews, automated testing, and compliance with development best practices.Document shared components comprehensively, providing usage guidelines and examples.

N-iX seeks a Senior Mobile App Product Manager in Poland to advance the online car marketplace experience for a major European client. This platform connects over 30 million users monthly across 18 countries. The role will shape how buyers and sellers interact with mobile solutions in the automotive industry. Role overview This position focuses on leading the mobile app product roadmap, balancing business goals with user needs. The Senior Product Manager will guide the product through every stage, from early discovery and definition to launch and ongoing updates. Collaboration with engineering, design, data, and marketing teams is central to delivering new features and refining existing ones. Key responsibilities Drive the mobile app roadmap, aligning with business priorities and user expectations. Oversee the full product lifecycle, from concept to delivery and iteration. Partner with cross-functional teams to launch features and improvements. Use data analytics, user research, and A/B testing to inform decisions and enhance app performance. Develop strategies to increase user acquisition, engagement, retention, and conversion. Define and monitor KPIs and success metrics for ongoing improvement. Ensure a consistent, high-quality user experience across iOS and Android. About N-iX Founded in 2002, N-iX is a global software development provider with over 2,400 professionals in more than 40 countries. Teams support digital transformation for sectors such as finance, manufacturing, telecom, and healthcare. Creativity and initiative are valued, and work in this role will have a direct impact on client outcomes.

N-iX is a prominent global software development service provider that empowers businesses worldwide to develop cutting-edge software products. Established in 2002, we bring together over 2,400 skilled professionals across more than 40 countries, collaborating on transformative projects for industry leaders and Fortune 500 companies. Our areas of expertise include cloud computing, data analytics, artificial intelligence/machine learning (AI/ML), embedded software, the Internet of Things (IoT), and much more, facilitating digital transformation in sectors such as finance, manufacturing, telecommunications, healthcare, and beyond. Join N-iX and be part of a team where your contributions truly matter.

Join Fairmarkit as a Senior Software Engineer, where you will be instrumental in developing innovative software solutions that drive efficiency and improvement across our platform. You'll collaborate with cross-functional teams to design, develop, and implement new features, ensuring high performance and responsiveness. If you are passionate about technology and eager to tackle complex challenges, we would love to hear from you!

Role Overview Endava is looking for a Senior Java Developer in Gdansk. This role focuses on building and refining software solutions for clients. The position involves designing, implementing, and improving complex Java applications. What You Will Do Design and develop Java-based applications Optimize existing systems for better performance and reliability Work closely with colleagues from different disciplines to integrate solutions

Role Overview Housecall Pro is seeking a Senior Staff Engineer based in Poland. This role involves guiding the direction of our software solutions and supporting the growth of our engineering team. Senior Staff Engineers at Housecall Pro help set technical vision, drive complex projects, and share knowledge across the organization. What You Will Do Lead major engineering projects from concept to delivery Mentor and support junior engineers, sharing technical expertise and feedback Work closely with peers to improve our products and processes Contribute ideas that strengthen our technology and bring value to customers Location This position is based in Poland.

Role Overview oscilar is hiring a Senior Backend Engineer with a focus on Java. This remote position is open to candidates based in Poland. The role centers on building and maintaining backend systems that support oscilar’s products and services. What You Will Do Work closely with teams across disciplines to design, implement, and support backend applications Develop scalable, reliable backend systems using Java Contribute to the ongoing improvement of code quality and system performance Location This is a remote role available to candidates located in Poland.

About Sezzle: At Sezzle, we are dedicated to empowering the next generation financially. Our innovative approach is redefining the shopping experience by combining state-of-the-art technology with flexible, interest-free installment plans, making shopping more intelligent and accessible. We are not only changing the payment landscape but are also transforming how customers discover, engage with, and acquire their favorite products, significantly boosting merchant sales through enhanced conversions and elevated order values. Join us in shaping the future of fintech and retail as we build a forward-thinking team that is passionate about creating a unique shopping experience rather than just a transaction. If you are eager to break new ground in technology and provide a transformative experience for both consumers and merchants, we invite you to be part of Sezzle's journey in revolutionizing shopping! About the Role: We are on the lookout for a highly skilled and driven Senior Software Engineer who embodies both intelligence and emotional insight. This role offers an exhilarating chance to excel in a fast-paced environment within a rapidly expanding team, with extensive opportunities for career progression.As a Senior Software Engineer at Sezzle, you will collaborate with a motivated team to solve engaging and complex challenges across various organizational domains. Your expertise will not only propel your own growth but also elevate the skills of your colleagues. In this backend-centric position, you will closely interact with stakeholders from Product, Support, and the broader business. Additionally, you will collaborate with other engineering teams to deliver high-quality, scalable, and innovative solutions that address both internal and customer challenges. Daily tasks will include designing, developing, and deploying new features, as well as mentoring and unblocking your teammates. Your contributions will have a profound impact on the daily operations of your peers at Sezzle, enhancing their capacity to support our business and customers, while also allowing for iterative feedback and improvement. Interview Process At Sezzle, we prioritize transparency. We regularly provide feedback and set expectations throughout our interview process, as we believe this is essential to our culture. Progression through each stage is not guaranteed.

About GliaGlia stands at the forefront of AI-driven customer service solutions tailored for banks and credit unions. Our innovative platform seamlessly integrates AI with human customer service representatives across all voice and digital interactions, thanks to our unique ChannelLess® Architecture. With our AI for All™ initiative, businesses can enhance efficiency without compromising customer experience by leveraging AI to automate conversations and streamline service operations.Valued at over $1 billion, Glia has earned recognition as a Deloitte Technology Fast 500™ company for five consecutive years, empowering over 700 financial institutions while boasting an impressive NPS score of 72. We are also proud to be certified as a Great Place to Work, with an astounding 98% employee satisfaction rate.Your RoleAs a Senior Software Engineer, you will become a vital member of the Media Essentials team (codename Ether). Your mission will be to develop exceptional rich media solutions that facilitate profound interactions for Glia’s clientele. You will significantly influence the successful realization of our ambitious Voice+AI roadmap.Team DynamicsThis position is designed to accommodate hybrid or remote work styles, although we highly value face-to-face interactions. For team members based in Estonia, working from the office is strongly encouraged. Additionally, we gather our engineering teams with remote members at least twice a year to foster collaboration, innovation, and relationship building. Travel for these gatherings may be required, which could also include final interview stages.Our team is distributed across Estonia (Tartu, Tallinn), Portugal, and Spain, and our processes are tailored for remote collaboration. While we are remote-first, we offer physical office locations in both Tallinn and Tartu, providing the option to work from these sites for those based in Estonia. Our operational hours align with the Eastern European time zone (EET/EEST), and we are hiring for this role in Estonia and Poland.Current Tech StackBackend: Go, Elixir, Ruby, PythonFrontend: React, JavaScript, TypeScriptInfrastructure: AWS, Kubernetes (EKS), Docker, TerraformDatabases & Persistence: PostgreSQL (RDS), DynamoDB, RedisEvent Streaming & Messaging: Apache Kafka, RabbitMQAI: Amazon Bedrock, Claude Code, Google Gemini

At ClickUp, we are not merely developing software; we are revolutionizing the future of work! In a landscape cluttered with work sprawl, we envisioned a more efficient approach. This vision led to the creation of the first truly unified AI workspace, seamlessly integrating tasks, documents, chat, calendar, and enterprise search, all powered by context-driven AI. Our platform empowers millions of teams to overcome silos, reclaim their time, and boost productivity. Joining ClickUp means you will not only learn and utilize AI but also help shape our product and the future of work itself. Become a part of our dynamic and innovative team that is redefining the boundaries of possibility! Collaboration and teamwork are essential to ClickUp's operations. A significant part of your role will involve close collaboration with our backend and integrations teams to develop features together. As an engineer at ClickUp, you will also be accountable for the quality of your code, working alongside a QA counterpart to ensure comprehensive testing of all edge cases. Given our rapid scaling, we are seeking individuals who resonate with our core values, are results-driven, and contribute to our vibrant culture. Proficiency in one or more modern JavaScript frameworks (Angular, Vue, etc.) and a solid understanding of building reusable components while optimizing performance are required.Key Responsibilities:Develop features using Angular 2+ in collaboration with designers, engineers, and product teams.Design efficient and reusable front-end code to enhance the ClickUp user experience.Manage project priorities, deadlines, and deliverables effectively.Identify and address performance and scalability challenges.Create and uphold unit and integration tests.Quickly resolve bugs and implement robust solutions for complex problems.Adhere to established practices for maintaining application state within ClickUp.Required Qualifications:A minimum of 5 years of experience with JavaScript and at least one modern framework (Angular 2+ is mandatory).Familiarity with Redux-style state management, NgRx, TypeScript, and RxJS.Proficient in HTML/CSS, including layout, specificity, cross-browser compatibility, and accessibility principles.Self-motivated, operationally-focused, and a strong problem-solver.Exceptional interpersonal, written, and verbal communication skills.

Why Join Housecall Pro?At Housecall Pro, we are on a mission to create solutions that enhance the lives of home service professionals across the United States. Our commitment is to assist these professionals in optimizing their operations, growing their businesses, and ultimately enjoying more time with their families. We believe in the Pro, and every day, we strive to make a significant impact in their lives.Although our headquarters is located in Denver, Colorado, our diverse team stretches across the globe, including talented individuals from Brazil, Poland, the Philippines, Mexico, and more. We prioritize our customers and cultivate a work culture where our company, our team members, and our Pros can thrive together, regardless of their location. Our leadership is deeply invested in the career growth of each team member, expecting them to contribute innovatively to our mission.We also provide:Generous paid holidays and flexible time off policiesA culture that champions innovation and welcomes big ideas from everyoneA MacBook setup ready from day one, plus a $500 stipend to create your ideal workspaceWork hours aligned with Central European Time (CET) for a balanced scheduleEquity in a fast-growing startup supported by leading venture capitalistsAbout the RoleAs a Senior Fullstack Software Engineer, you will leverage your strong engineering fundamentals and problem-solving skills to navigate complex systems effectively. Your focus will be on systems thinking, scalable architecture, and writing clean, maintainable code that provides genuine value to our customers. In this position, you will lead technical decision-making processes, drive projects from conception through to production, and collaborate closely with product, design, and engineering teams to create impactful user experiences.You will play a pivotal role in defining and advocating for technical best practices, enhancing the quality of our systems, and mentoring other engineers as our team expands. Our engineering culture is characterized by passion, empathy, and a collective mission of improving the lives of our service professionals. Your contributions will be vital in enabling their success and fortifying the foundation of our product for years to come.Compensation: $6,500 - $8,000 USD per month (B2B)What You Will Do

Addepar is looking for a Senior Site Reliability Engineer based in Poland. This position focuses on maintaining and improving the reliability and performance of our platforms. Role overview As a Senior Site Reliability Engineer, collaboration with cross-functional teams is central to the work. The role involves designing and implementing infrastructure solutions that support our systems. Addressing and resolving complex technical issues is also a key part of daily responsibilities. What you will do Work with multiple teams to build and refine infrastructure for our platforms Troubleshoot and resolve challenging issues to maintain system reliability Enhance systems to support optimal performance Location This role is based in Poland.