Senior Full Stack Engineer (Java, Angular)

🏢 Summary: The role involves designing and building high-quality backend applications in a microservices environment, working closely with product and engineering teams throughout the full development lifecycle. You will develop scalable systems, contribute to architecture decisions, and deploy production-ready code within an Agile environment. 🗂️ Requirements: 4+ years experience in backend development, Strong knowledge of Java 21, Experience in microservices architecture, Experience with Spring framework (Core, Data JPA, MVC, Boot, Security), Solid understanding of Object Oriented Design and Analysis, Experience designing and implementing scalable systems, Hands-on experience with SQL and REST APIs, Experience with Continuous Integration, Familiarity with Docker and Kubernetes, Understanding of distributed systems and SOA, Experience working in Agile environment 📃 Skills: Java, Spring, JPA, MVC, Boot, Security, Spock, SQL, REST, Docker, Kubernetes, AWS, SAML, OAuth, CQRS, EventSourcing, Microservices, SOA 🏢 Description: Senior Backend Engineer Background Ziflow is the leading creative collaboration platform helping agencies and brands streamline feedback and approval for creative assets — from concept to delivery. Our customers include Toyota, McCann Worldgroup, AWS, Doordash, Williams Sonoma, and Bark. Founded in 2016, Ziflow serves thousands of customers globally, with team members in the US, UK, Poland, Canada, and South Africa. Our executive team has a proven track record of building, scaling, and successfully exiting SaaS businesses — and we’re just getting started. Join us to help build a world-class team that creates world-class work. The Role You will work closely with our CTO and Product Team to produce a high quality product. You will be involved in every aspect of the product development process, from the conception of new features, collaborating with the Design and SysOps teams, to successfully running your code in production. You will be working in a formal Agile environment to develop high quality applications based on requirements and designs. Qualifications Work experience in similar role 4+ years Strong knowledge of Java 21, preferably in a microservices environment. Solid experience with Object Oriented Design & Analysis Hands-on experience with frameworks and technologies such as Spring (Core, Data JPA, MVC, Boot, Security), Spock, SQL, REST, and related tools. Experience in designing and implementing highly scalable systems and frameworks Desirable Skills SOA, and distributed systems understanding, experience in Continuous Integration Familiarity with containerization with Docker & Kubernetes SAML, Dropbox API, Google API, OAuth, etc. Some experience with Event Sourcing + CQRS Familiarity with AWS services Excellent communication skills, able to collaborate effectively with other Scrum team members Experience in Agile software development practices

🏢 Summary: Remote Senior QA Engineer role focused on ensuring high-quality delivery of web applications through automated and manual testing across the full software development lifecycle. The position involves owning QA processes, solving complex technical challenges, and contributing to CI/CD and test strategy within cross-functional teams. The role also includes guiding technical decisions and supporting implementation of new technologies. 🗂️ Requirements: Minimum 7 years of QA or relevant experience, Minimum 3 years testing web applications, Experience creating automated tests for web applications and APIs, Experience with parallel test execution and CI/CD pipelines, Ability to design test strategies and perform manual and exploratory testing, Working knowledge of Java, Proficiency with Git, Experience with test management and bug-tracking tools, Experience across full software development lifecycle 📃 Skills: Java, CI/CD, Docker, Git, API, Selenium, JUnit, TestNG, REST, Agile 🏢 Description: Senior QA Engineer Software Development | Remote Background Ziflow is the leading creative collaboration platform helping agencies and brands streamline feedback and approval for creative assets — from concept to delivery. Our customers include Toyota, McCann Worldgroup, AWS, Doordash, Williams Sonoma, and Bark. Founded in 2016, Ziflow serves thousands of customers globally, with team members in the US, UK, Poland, Canada, and South Africa. Our executive team has a proven track record of building, scaling, and successfully exiting SaaS businesses — and we’re just getting started. Join us to help build a world-class team that creates world-class work. The role As a Senior QA Engineer, you will work in a cross-functional team of senior engineers, developers, and architects, taking ownership of QA across all project stages. You will solve complex technical challenges, influence project outcomes, and ensure high-quality delivery. You will take substantial features from concept to shipping, provide guidance to junior engineers, and contribute to proposals and project planning. Your work will span both automated and manual testing, with opportunities to shape processes and influence multiple projects. You will also play a key role in implementing new technologies, guiding teams on complex components, and providing technical expertise where needed. Qualifications Minimum 7 years of relevant experience Minimum of 3 years of experience testing web applications. Working knowledge of Java. Proven experience in creating automated tests for web applications and APIs. Experience with parallel test executions and distribution options (CI/CD, Docker). Ability to design test approaches and actively participate in manual testing, including creation, review, execution, and exploratory testing. Proficiency with version control systems, particularly Git. Experience with test management tools, bug-tracking systems, and exposure to all aspects of the software development lifecycle. Desirable Skills Recognized as a technical expert with deep expertise in at least one programming environment and basic proficiency in another. Ability to lead complex projects, influence project direction, and contribute to strategic decision-making. Experience in high-impact feature development affecting customers and users. System-wide responsibility for complex components or multiple projects. Capability to provide guidance and mentorship to junior team members. Routine reporting to Scrum Masters and authority to make project-related decisions. Extensive domain knowledge and experience in improving strategic processes.

🏢 Summary: Senior Full Stack Engineer role focused on building scalable web applications, solving complex technical challenges, and contributing to architecture decisions in a modern product environment. The position involves full-stack development across frontend, backend, and cloud systems using modern technologies. The offer includes remote work, flexible hours, modern equipment, and growth opportunities in a collaborative team. 🗂️ Requirements: 5+ years of Full Stack Software Engineering experience, Strong algorithmic thinking, Knowledge of data structures, Understanding of software design principles, Performance optimization skills, Experience with TypeScript, Experience with React, Experience with Node.js, Experience with SQL databases, Experience across frontend, backend, and cloud environments, Ability to learn new technologies quickly, Fluent English, Strong communication skills 📃 Skills: TypeScript, React, Node.js, SQL, JavaScript, Cloud 🏢 Description: Senior Full Stack Engineer We are looking for a Senior Full Stack Engineer with strong software engineering fundamentals and excellent algorithmic and problem-solving skills . You'll play a key role in designing scalable applications, solving complex technical challenges and driving architectural decisions in a modern product environment. Responsibilities Design, develop and maintain high-performance web applications. Translate complex business requirements into efficient technical solutions. Build scalable frontend and backend services using modern technologies. Contribute to system architecture, code quality and technical improvements. Collaborate with cross-functional teams and take ownership of features from design to deployment. Requirements 5+ years of experience in Full Stack Software Engineering. Strong algorithmic thinking and solid understanding of data structures, software design principles and performance optimization. Experience with TypeScript, React, Node.js and SQL databases. Ability to quickly learn new technologies and solve complex technical problems. Experience working across frontend, backend and cloud environments. Excellent communication skills and fluent English. What We Offer Remote work model with flexible working hours. Opportunity to work with modern technologies and influence technical decisions. High-quality equipment provided. Fast-paced environment with multiple innovative projects and excellent growth opportunities. Collaborative team where ownership, initiative and continuous learning are highly valued.

🏢 Summary: Senior Full Stack Engineer role in a healthcare SaaS environment focused on building and scaling a cloud-based platform for medical practices. The position involves leading end-to-end feature development, driving architecture decisions, mentoring engineers, and contributing to secure, scalable product delivery in a fully remote EU team. The role includes collaboration across product and design teams, with strong emphasis on quality, testing, and CI/CD practices. 🗂️ Requirements: 6+ years of professional engineering experience, 2+ years in a senior engineering role, Experience with Symfony, Experience with Doctrine ORM, Knowledge of Symfony Security and Event Dispatchers, Experience with Domain-Driven Design, Ability to write and maintain unit and integration tests, Experience with React.js, Strong MySQL experience, Experience with Docker, Familiarity with GitLab CI/CD, Understanding of frontend and backend security, Strong problem-solving skills, Clear communication skills 📃 Skills: Symfony, Doctrine, DDD, React, MySQL, Docker, GitLab, CI/CD, PHP, Security 🏢 Description: About the Role A healthcare SaaS company is looking for a Senior Full Stack Engineer to join their core product team. Their cloud-based platform transforms the daily operations of medical practices - streamlining practice management and patient relationships across thousands of healthcare providers. This is a high-ownership role. You'll lead end-to-end feature development, drive architecture decisions, and mentor junior engineers - all in a fully remote, cross-functional team that ships fast and takes quality seriously. What You'll Do Lead full stack feature development from concept to deployment, with a strong focus on security and scalability Drive architecture and design decisions to ensure solutions meet healthcare industry standards Collaborate with product managers, designers, and stakeholders to align technical solutions with business goals Mentor junior developers, promoting continuous learning and innovation within the team Implement automated testing, continuous integration, and continuous deployment to uphold code quality Contribute to roadmap planning with insights on technical feasibility, timelines, and resources Stay up-to-date with industry trends and apply new knowledge to enhance the product What We're Looking For 6+ years of professional experience, with at least 2 years in a senior engineering role Extensive experience with Symfony , including Doctrine ORM and key components (Security, Event Dispatchers) Advanced understanding and practical experience with Domain-Driven Design (DDD) Proficient in writing and maintaining unit and integration tests Solid understanding of React.js , with the ability to improve frontend as needed Strong experience with MySQL - design, optimisation, and management Experience with Docker for managing development environments Familiarity with GitLab CI/CD pipelines for automated build, test, and deployment Security awareness for frontend and backend development, particularly when handling sensitive data Strong problem-solving skills and clear communication across technical and non-technical stakeholders Nice to Have Experience with SaaS products and/or the healthcare industry Working Model Fully remote (EU) Full-time: Monday-Friday, 09:00-18:00 with 1-hour lunch break 1-week onboarding at the Munich HQ to meet the team Benefits Full equipment provided (laptop, headphones, keyboard, mouse, smartphone with unlimited data, monitor) Bonus for paid English or German language courses Training courses, books, workshops, and team-building activities Partnership with an online psychotherapy platform - three sessions provided if needed Regular company meetups and a yearly Christmas dinner

🏢 Summary: Senior Full Stack Developer role focused on building scalable, secure cloud-native applications across the full stack. The position involves backend and frontend development, as well as deploying and managing solutions on Microsoft Azure using containerization technologies. Hybrid work model with 3 days per week on-site in Wroclaw. 🗂️ Requirements: Expert-level experience in at least 3 of: Java, Python, Hands-on experience with Azure, Hands-on experience with Kubernetes, Hands-on experience with TypeScript, Hands-on experience with React, Hands-on experience with Rust or Node.js, Extensive experience with Microsoft Azure cloud platform, Strong proficiency in multiple programming languages and frameworks, Experience working in agile development environments 📃 Skills: Java, Python, Rust, Node.js, React, TypeScript, Azure, Kubernetes, Cloud, DevOps 🏢 Description: We are seeking a versatile and experienced Senior Full Stack Developer to join our dynamic team working on cutting-edge cloud-native applications. This role involves developing scalable, secure, and high-performance solutions using modern technologies across the full technology stack. You will work on innovative projects that leverage cloud platforms and containerization technologies to deliver exceptional user experiences Our client is a leading technology company focused on building next-generation digital solutions. They are committed to innovation and excellence in delivering cloud-based applications that serve millions of users worldwide. This role offers a hybrid model with 3 days per week working from the client's office in Wroclaw, Poland Ready to launch your career in cloud engineering? Apply now and join our global team. Responsibilities Design and develop robust backend services using Java, Python, Rust or Node.js Build responsive and intuitive front-end interfaces with React and TypeScript Architect and deploy cloud-native applications on the Microsoft Azure platform Manage infrastructure as code using Terraform and modern DevOps practices Orchestrate and maintain containerized applications with Kubernetes Collaborate with cross-functional teams to deliver comprehensive end-to-end solutions Requirements Expert-level experience in at least 3 of the following technologies: Java and/or Python Hands-on experience with: Azure, Kubernetes, TypeScript, React, Rust, Node.js Strong proficiency in multiple programming languages and frameworks Extensive experience with cloud platforms, particularly Microsoft Azure Proven ability to work effectively in fast-paced agile development environments Strong problem-solving skills and attention to detail Excellent communication and collaboration abilities Nice to have Experience with infrastructure as code tools like Terraform Knowledge of DevOps practices and CI/CD pipelines Understanding of microservices architecture patterns Experience with containerization and orchestration technologies Familiarity with modern software development methodologies and best practices Previous experience working in cross-functional international teams We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Full Stack Engineer role focused on building and scaling core platform functionalities within a cross-functional product team. The position involves end-to-end ownership of features, from design to deployment, using a modern TypeScript-based stack on AWS. The engineer will develop scalable microservices and frontend components that support millions of global users. 🗂️ Requirements: 7+ years of professional software engineering experience, Strong hands-on experience with TypeScript, Node.js, and React, Proven experience with AWS services: API Gateway, Lambda, ECS, SQS, SNS, Experience designing event-driven and microservices architectures, Proficiency with NoSQL and relational databases, Experience with CI/CD pipelines and Docker, Experience with observability and monitoring tools 📃 Skills: TypeScript, Node.js, React, AWS, APIGateway, Lambda, ECS, SQS, SNS, MongoDB, DynamoDB, PostgreSQL, Jenkins, GitLabCI, GitHubActions, Docker, CloudWatch, Datadog, REST, Microservices, NoSQL, CICD 🏢 Description: Salary range: B2B - up to 43 E/h + VAT 💰 Ciklum is looking for a Senior Full Stack Engineer to join our team and work directly with our partner, Trustpilot, in Poland. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the client: Trustpilot is on an incredible journey to become the universal symbol of trust. As the world’s largest independent consumer review platform, they bring consumers and businesses together to foster transparency and improvement. With over 300 million reviews and 64 million monthly active users, the work we do together has a massive global impact, helping millions of people make better choices every day. About the role: As a Senior Full Stack Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. As the world’s largest independent consumer review platform, they bring consumers and businesses together to foster transparency and improvement. With over 300 million reviews and 64 million monthly active users, the work we do together has a massive global impact, helping millions of people make better choices every day. In this role - you are fully integrated into feature teams. You will work on core platform functionalities that drive product-led growth, managing the critical customer lifecycle including sign-up, onboarding, sales, and retention. Your work will influence the experience of over 60 million monthly Trustpilot users globally! You will join a cross-functional "full ownership" team where you have a say in the direction of projects and technological choices. Responsibilities: Collaborative Development: Work alongside Product, Design, and Data Science in a team that owns its product and codebase from end-to-end End-to-End Ownership: Participate in every stage of the lifecycle—from ideation and design to architecture, implementation, deployment, and maintenance System Design: Drive technical decision-making and build scalable backend services and clean, reusable frontend components using TypeScript Scale & Innovation: Build and maintain RESTful APIs and distributed cloud services within an event-driven microservices architecture Team Leadership: Support and inspire your colleagues with your technical expertise and a problem-solving mindset Requirements: Experience: 7+ years of professional experience in software engineering Core Tech: Strong, hands-on expertise with TypeScript, Node.js, and React AWS Infrastructure: Proven experience with API Gateway, Lambda, ECS, SQS, SNS Architecture: Deep understanding of event-driven and microservice architectures Databases: Proficiency with NoSQL (MongoDB, DynamoDB) and Relational databases (PostgreSQL) DevOps & Tooling: Experience with CI/CD (Jenkins, GitLab CI, GitHub Actions), Docker, and observability tools like CloudWatch or Datadog What`s in it for you? Remote Collaboration: Enjoy the flexibility of remote work or join us in our offices across Europe Human Connection: We value a great atmosphere and host team F2F workshops a few times a year to brainstorm and bond in person Continuous Growth: Benefit from a tailored education path, including internal meetups, a Udemy license, and company-paid certifications Comprehensive Care: We offer medical insurance, mental health programs, and a welcoming, open culture Global Reach: Your work will build solutions used by millions to promote trust and transparency online Be bold, not bored! If you're ready to build the heart of trust with a world-class engineering team, we’d love to see your application.

🏢 Summary: Senior Full-Stack Engineer role with a 50/50 backend and frontend focus, building scalable microservices-based applications using ASP.NET (C#) and React with TypeScript in a cloud-native environment. The position involves designing and maintaining REST APIs, developing responsive user interfaces, ensuring high test coverage, and contributing to architectural decisions with strong technical ownership. Poland-based employment (Umowa o Pracę) with remote flexibility and quarterly in-person collaboration. 🗂️ Requirements: MSc+ in Computer Science or equivalent, Minimum 5 years experience with ASP.NET and C#, Minimum 5 years experience building REST APIs, Minimum 5 years experience with React, Experience with TypeScript, Strong knowledge of microservices architecture, Knowledge of cloud design patterns, Experience with unit, integration, and end-to-end testing, High level of technical ownership, Fluent English (minimum B2), Poland residency 📃 Skills: ASP.NET, C#, REST, React, TypeScript, Microservices, AWS, Agile, DDD, UnitTesting, IntegrationTesting, E2ETesting, Cloud 🏢 Description: We’re looking for a Senior Full-Stack Engineer who brings deep technical expertise and a collaborative mindset to our product development team. You will work with a modern microservices architecture, building scalable backend services using the ASP.NET Web API with C#, and intuitive frontend interfaces using mainly React and TypeScript. This is a hands-on engineering role with a 50/50 front-/backend focus, ideal for someone who likes to take ownership, thrives in a dynamic product team, and enjoys mentoring others. This role could easily become a Tech Lead role in a foreseeable future. If you're passionate about designing high-impact software in a cloud-native environment, we’d love to hear from you. This Poland-based role offers remote flexibility, but we value in-person collaboration. Our team meets in Poland for at least one week each quarter, so we request all applicants to be located in Poland. This is not a globally remote role. Poland residency is required. The contract form is Umowa o Pracę (only, no B2B). What you will be responsible for Collaborate proactively in refinement sessions with product and tech teams to ensure clarity and feasibility of features. Design, implement, and maintain scalable web APIs using ASP.NET and microservices architecture principles. Develop responsive user interfaces with React and TypeScript that enhance usability and performance. Work closely with Product Owners to clarify feature requirements and ensure business context is well-understood. Define, design and align feature architecture with the Head of Engineering to ensure consistency and scalability. Ensure features meet Definition of Done, with state-of-the-art unit, integration, and end-to-end test coverage. Support incident response and production issue resolution as per team standards. Actively contribute to team knowledge sharing and coach colleagues in technical best practices. What makes you a match Essential Qualifications: MSc+ in Computer Science or equivalent 5 years of proven experience in building secure REST APIs using ASP.NET , as well as developing solid front-end applications with React are non-negotiable must haves. Comprehensive knowledge of contemporary web application architectures, with a focus on microservices and cloud design patterns. Demonstrated ability of high technical Ownership and Tech Leadership are a requirement for this role. Bonus Skills: Hands-on experience with AWS infrastructure. Experience working in cross-functional product teams using Agile practices and following Domain-Driven Design (DDD). Collaboration and Interpersonal Skills: Clear and adaptive communication with both technical and non-technical stakeholders. Strong sense of ownership, accountability, and proactive problem-solving. Languages: English: B2 - (No certificate required, but Fluency) German, Polish, Ukrainian: desired, not required What you can expect A dynamic, ambitious team where your voice is heard, and your contributions truly matter. You’ll have real ownership over your decisions in a trusted, cross-functional environment within a Swiss product company that puts people first. We offer fair compensation, flexible working hours, a hybrid work setup, and a culture that supports both personal and professional growth, fostering a healthy work-life balance. Employer of Record: For this role, we offer employment through our trusted Employer of Record provider Remote.com , ensuring full legal compliance and a seamless experience for our team members in Poland. ID Verification: To maintain a fair and secure hiring process, candidates may be asked to verify their identity their identity before speaking with our Recruiter. This step helps us prevent fraud and focus our resources on genuine applicants. About us Who we are esurance is a Swiss InsurTech offering a SaaS platform that connects SMEs, insurance providers, brokers, and business application providers. Founded in 2013, we're on a mission to make health insurance for small businesses truly hassle-free. What makes us unique You'll be part of a connected, forward-thinking team built on trust, openness, and mutual respect — working hybrid from Zürich or remotely across Europe. We invest in your growth through agile practices, real ownership, and a transparent Grading System that ensures fair pay and clear career paths. Our core values We are connected. We are ahead. We are clear. We are approachable. Do these resonate with you? → Come join us. Our Recruitment Process & Principles We keep our process transparent and respect your time: Application Review — You hear from us within 5 business days. Always. Recruiter Screen — A relaxed Get2Know call to explore mutual fit. Four Interviews — Two Role Knowledge interviews (peer + supervisor), one Culture Match, one Leadership conversation. Batched into two days wherever possible. Hiring Decision — Thoughtful, timely. You'll know within 1–2 weeks. Use of Artificial Intelligence (AI) We use AI to increase productivity and you're welcome to use it to polish your CV or Coverletter. Interviews and assessments should reflect your genuine self, though. Recruiting Agencies: We don't work with unsolicited agency submissions. Thanks for respecting this.

🏢 Summary: Senior Full-Stack Engineer role focused on designing and developing full-stack cloud solutions for a high-traffic online marketplace. The position involves building and maintaining scalable web applications, leveraging AI-driven development practices, and working with event-driven microservices architectures. The role includes CI/CD management, cloud migrations, and performance optimization within a distributed agile team. 🗂️ Requirements: Canadian timezone work hours (EDT), 4+ years experience with C# or .NET for web development, 4+ years experience with React for web development, Experience with Azure and Azure to AWS migration, Expert proficiency in GenAI-driven development and GitHub Copilot/Codex integration, Deep understanding of AI agents and autonomous task orchestration, Mastery of prompt engineering techniques (CoT, Few-Shot, prompt optimization), Experience with Kafka and SQL, Strong knowledge of event-driven and microservices architecture, Experience with Application Insights, Experience with unit, component, and integration testing, Experience with Azure DevOps and JIRA, Experience working with agile methodologies (ScrumBan/Kanban, Gitflow) 📃 Skills: C#, .NET, React, Azure, AWS, GenAI, GitHub, Copilot, Codex, Kafka, SQL, ApplicationInsights, Microservices, CI/CD, AzureDevOps, JIRA, Gitflow, ScrumBan, Kanban 🏢 Description: We are looking for a Senior Full-Stack Engineer to join our team, Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Fullstack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Design and develop full-stack cloud solutions from technical analysis to integration testing. Support existing systems Mentor junior engineers on design patterns, code reviews, testing practices, and scalable architecture. Establish documentation standards across teams. Conduct root cause analysis and collaborate with production support to resolve issues. Evaluate third-party software with business and engineering teams. Maintain CI/CD pipelines for applications. Requirements: Canadian timezone work hours (EDT) 4+ years of experience with C# or .NET  for web application development 4+ years of experience with React for web application development Experience with Azure, including migration from Azure to AWS Expert proficiency in GenAI-driven development, GitHub Copilot/Codex integration, rapid prototyping, automated refactoring, and AI-accelerated debugging Deep understanding of AI agents, autonomous task orchestration, reasoning engines, tool-use integration, and multi-step workflow automation Mastery of iterative prompting. Chain-of-Thought (CoT), Few-Shot prompting, output validation, and prompt optimization for production-grade code Familiarity with Kafka, SQL, and performance optimization Strong understanding of event-driven and microservices architecture Experience, Application Insights, and responsive front-end design using React Background in high-traffic websites, performance tuning, and security Ability to communicate technical solutions effectively Expertise in unit, component, and integration testing Experience with Azure DevOps, and JIRA in distributed teams Solid grasp of agile methodologies, including ScrumBan/Kanban and Gitflow Nice to Have : Previous DevOps Experience is a great advantage Experience with Java and Scala Experience with observability tools like Datadog Proficiency with  Java/Spring Boot for building APIs and web applications - nice to have Experience with AWS Previous experience with GitHub This job opportunity for Canadian time zone.

🏢 Summary: Senior Full-stack Engineer role focused on building and scaling a modern B2B SaaS platform for subscription-based e-commerce. The position involves end-to-end feature delivery, architectural decisions, and improving system scalability and reliability. High-impact role with strong ownership over technical direction and product evolution. 🗂️ Requirements: 7+ years engineering experience in complex systems, Strong system design skills, Experience designing scalable architectures, Full-stack development experience, Experience building SaaS platforms, Experience with e-commerce systems 📃 Skills: JavaScript, TypeScript, SaaS, Architecture, Scalability, Reliability, APIs, Ecommerce, Payments, Cloud 🏢 Description: Senior Full-stack Engineer Our client is building a modern B2B SaaS platform that enables businesses to launch and scale subscription-based models for physical and digital products. The product sits at the intersection of e-commerce, payments, and developer tooling, with a strong focus on extensibility and developer experience. The team is lean, senior, and highly experienced, backed by strong investors and industry advisors. They operate with high autonomy, fast execution, and strong ownership culture. Role We are looking for a Senior Full-stack Engineer to help shape the next evolution of the platform. You will work across architecture, product, and infrastructure, focusing on scalability, reliability, and developer experience. This is a high-impact role where you will influence both technical direction and product decisions. Responsibilities Build and evolve a scalable SaaS platform Design and deliver new features end-to-end Improve performance, reliability, and system architecture Collaborate with product, design, and growth teams Requirements 7+ years of engineering experience in complex systems Strong architectural and system design skills Ability to choose appropriate technologies per problem Experience working in cross-functional teams Strong communication in Polish and English Startup mindset: ownership, speed, adaptability Experience with e-commerce platforms is a plus Offer High-impact role in a senior engineering team with real product ownership and influence. Competitive salary plus ESOP, fully remote work (Poland), regular team offsites, and modern tooling including MacBook Pro and AI credits. Direct access to founders, investors, and advisors.

🏢 Summary: Senior Full Stack Developer role focused on building and maintaining cloud-native applications for the offshore wind industry using .NET Core, Angular, and AWS. The position involves developing scalable microservices and REST APIs, improving reliability and DevOps processes, and contributing to architecture and technical decisions. The role includes mentoring developers and collaborating with cross-functional teams in a hybrid work model. 🗂️ Requirements: Commercial experience with .NET Core, Commercial experience with C#, Commercial experience with Angular, Knowledge of object-oriented programming, Understanding of SOLID principles, Experience with clean code practices, Experience with software architecture, Experience building REST APIs, Experience with microservices, Experience with Docker, Experience with Kubernetes, Experience with Kafka or AMQ, Experience with SQL databases, Experience with NoSQL databases, Hands-on experience with AWS, Experience with EKS, Experience with cloud storage, Experience with AWS Secrets Manager, Experience with infrastructure automation, Experience with monitoring and production deployments, Experience with DevOps, Experience with CI/CD, Experience with release automation, Experience with test automation, Proficiency with Git, Experience with Azure DevOps or GitHub Actions, Communication and collaboration skills, Experience mentoring developers 📃 Skills: .NET, C#, Angular, AWS, EKS, REST, Microservices, Docker, Kubernetes, Kafka, AMQ, SQL, NoSQL, DevOps, CI/CD, Git, Azure, GitHub, OOP, SOLID 🏢 Description: We are looking for an experienced Senior Full Stack Developer to join a team developing a business-critical platform supporting the offshore wind industry . In this role, you will design, build, and maintain modern cloud-native applications while influencing technical direction and collaborating with cross-functional teams to deliver scalable, secure, and high-performing solutions. Your responsibilities: Design, develop, and maintain scalable applications using .NET Core, C#, and Angular . Build and enhance secure cloud-native solutions on AWS . Develop and maintain REST APIs , microservices, and distributed applications. Improve application reliability, performance, and operational excellence. Implement and maintain CI/CD pipelines and DevOps best practices. Design resilient integrations using messaging technologies such as Kafka . Participate in architecture discussions, code reviews, and technical decision-making. Mentor junior developers and promote engineering best practices across the team. We are looking for you, if you have: Proven commercial experience with .NET Core, C#, and Angular . Strong knowledge of object-oriented programming, SOLID principles , clean code, and software architecture. Experience building REST APIs , microservices, and working with Docker, Kubernetes, Kafka (or AMQ), and SQL/NoSQL databases . Solid hands-on experience with AWS , including EKS, cloud storage, AWS Secrets Manager, infrastructure automation, monitoring, and production deployments. Experience with DevOps , CI/CD, release automation, and test automation. Proficiency with Git , Azure DevOps, or GitHub Actions. Excellent communication and collaboration skills, with experience mentoring developers and working closely with technical and business stakeholders. Location: Hybrid (Warsaw) – 2–3 days per week from the office We offer: Participation in interesting and demanding projects. Flexible working hours. A great, non-corporate atmosphere. Possibility to work remote or hybrid (2 days per week from the office). Opportunities for development and promotion. Attractive package of benefits. We reserve the right to contact the selected candidates.