Senior Software Engineer (Java)

🏢 Summary: Senior Software Engineer role focused on designing, building, and scaling secure enterprise web applications and high-performance SaaS platforms. The position covers backend APIs, microservices, testing, technical leadership, and Azure-based CI/CD delivery within Agile teams. 🗂️ Requirements: 6+ years of full-lifecycle software development experience, Experience developing and maintaining large-scale web applications and SaaS solutions, Strong proficiency in C#, .NET Core, and .NET Framework, Hands-on experience with Azure Cloud services, RESTful architectures, and CI/CD pipelines, Experience with NUnit, Moq, Jest, and Git, Strong problem-solving and technical communication skills 📃 Skills: C#, .NET, Azure, REST, Microservices, NUnit, Moq, Jest, Git, CI/CD, SaaS 🏢 Description: We are looking for a skilled and passionate Senior Software Engineer to join our core engineering team. In this role, you will play a key part in designing, building, and scaling enterprise-grade web applications and high-performance SaaS solutions. If you have a strong foundation in Microsoft technologies, cloud architecture, and modern engineering practices—and love solving complex technical challenges—we would love to hear from you! Key Responsibilities Architecture & Development: Design, build, and maintain scalable, secure, and resilient web applications and SaaS platforms. API & Backend Systems: Implement and optimize RESTful APIs, microservices, and Web API integrations. Quality & Testing: Drive software quality by writing comprehensive unit tests (NUnit, Moq, Jest) and advocating for test-driven practices. Technical Leadership: Participate in code reviews, architectural discussions, and technical planning to ensure clean, maintainable code. Agile Collaboration: Work closely with cross-functional teams using Agile methodologies to deliver features iteratively and efficiently. DevOps & Version Control: Utilize Git and Azure DevOps for continuous integration, project tracking, and modern deployment pipelines. Key Requirements Experience: 6+ years of hands-on experience in full-lifecycle software development. SaaS & Web Architecture: Proven track record of developing and maintaining large-scale web applications and SaaS solutions. Core Tech Stack: Strong proficiency in C# , .NET Core , and .NET Framework . Cloud & DevOps: Hands-on experience with Azure Cloud services, RESTful architectures, and CI/CD pipeline concepts. Testing & Tools: Solid experience with unit testing frameworks ( NUnit, Moq, Jest ) and version control ( Git ). Communication: Excellent problem-solving skills and the ability to articulate technical concepts clearly to team members. Nice to Have Agile Frameworks: Experience working within a SAFe (Scaled Agile Framework) environment. Mentorship: Passion for coaching junior developers and fostering team growth.

🏢 Summary: B2B contract for a Senior Software Engineer to develop and operate a JVM-based, event-driven platform remotely from Poland. The role provides end-to-end ownership of system design, delivery, production reliability, monitoring, and support, with a rate up to 140 zł/h net + VAT. 🗂️ Requirements: 5+ years of software engineering experience, End-to-end ownership of features and components, Java and Kotlin expertise, Event-driven systems experience, Distributed systems knowledge, Event-driven architecture and API gateway experience, PostgreSQL, data modelling, and query performance knowledge, Relational and non-relational database knowledge, Unit, integration, and end-to-end testing experience, Independent delivery, risk, sequencing, and dependency management, C4 model system design experience, DORA metrics, stability, SSDLC, velocity, and predictability familiarity, AI coding tools experience, Cloud platform familiarity, Docker and Kubernetes experience, Fluent Polish, Advanced English (B2/C1) 📃 Skills: Java, Kotlin, JVM, PostgreSQL, NoSQL, Docker, Kubernetes, C4, DORA, SSDLC, Claude, Codex, Cursor, Cloud 🏢 Description: Contract : B2B Rate : up to 140 zł/h net + VAT depending on skills and experience Location : Remote within Poland Start : ASAP Project : Development of a JVM-based, event-driven platform with end-to-end ownership of software design, delivery, and production reliability. Key Technologies/Areas Java, Kotlin, JVM Event-Driven and Distributed Systems PostgreSQL and NoSQL Docker, Kubernetes Cloud Platforms AI Coding Tools Project Overview We are looking for a Senior Software Engineer to join one of our client’s engineering teams. You will own features and components from refinement and system design through development, production deployment, monitoring, and post-release support. Responsibilities Own the end-to-end design and delivery of features and components. Create, maintain, and align system designs using the C4 model with the domain target architecture. Develop reliable, production-ready, and well-tested software using Java and Kotlin. Manage estimation, sequencing, delivery risks, and cross-team technical dependencies. Own monitoring, reliability, production support, and participation in on-call. Contribute to frontend development where required. Use AI coding tools as part of your daily workflow. Requirements 5+ years of professional software engineering experience , including proven ownership of features and components end to end. Solid foundation in the JVM , including Java and Kotlin . Production experience with event-driven systems. Good understanding of distributed systems, including idempotency, at-least-once vs exactly-once trade-offs, schema evolution, and partitioning. Experience with event-driven architecture, API gateways, and understanding when not to apply these patterns. Sound knowledge of relational and non-relational databases, including PostgreSQL , data modelling, and query performance. Proven experience delivering reliable software with unit, integration, and end-to-end testing. Ability to independently manage delivery, risks, sequencing, and cross-team dependencies. Experience owning system design at team scope using the C4 model. Familiarity with DORA metrics, stability, SSDLC compliance, velocity, and predictability. Experience using AI coding tools such as Claude Code, OpenAI Codex, opencode, Cursor, or similar. Familiarity with cloud service providers. Experience with Docker and Kubernetes . Fluency in Polish and advanced English (B2/C1) Nice to have Frontend experience with React, TypeScript, and Node.js. Hands-on production experience with Kafka. Experience with Microsoft Azure. Why join us? Rite NRG is a vibrant outsourcing technology company driven by the Right People. We are dedicated to empowering businesses through innovative software solutions. We focus on building strong partnerships and providing top-notch software solutions that drive real business growth. Our business model revolves around collaboration and delivering impactful results for our clients. Join us and be part of a team where great minds, Right Energy, and strong partnerships come together to shape the future of technology! Possibility of long-term cooperation on a full-time project engagement basis. Flexibility in organizing the provision of services, taking into account project requirements and agreed availability. Opportunity to contribute to technically advanced projects. Opportunity for international collaboration.

🏢 Summary: Senior Software Engineer role on a global product team building enterprise platforms for research, clinical development, and scientific decision-making. The position focuses on scalable backend services, modern web applications, cloud-native architecture, CI/CD, testing, reliability, and collaboration in an agile environment. 🗂️ Requirements: 5+ years of software development experience, ASP.NET Core and Vue 3 with TypeScript, Python or .NET backend experience, REST API development, Azure or AWS cloud experience, GitHub Actions CI/CD experience, Automated testing and DevOps practices, English fluency 📃 Skills: ASP.NET, Core, .NET, Vue, TypeScript, Python, REST, Azure, AWS, GitHub, Actions, Vitest, Allure, MSAL 🏢 Description: Job Title: Senior Software Engineer Position can be worked Remote About the role Are you an experienced Software Developer looking to build digital products that deliver real business value? Join a global product team developing enterprise-grade platforms that support research, clinical development, and scientific decision-making. You will work closely with Product Owners, architects, business stakeholders, and fellow engineers to design, build, and evolve modern software solutions used by thousands of users worldwide. What you will be doing Design and implement scalable solutions with backend services and APIs Develop modern web applications and user-facing functionality Contribute to system architecture and technical decision-making Participate in cloud-native solution design and implementation Build and improve CI/CD pipelines and automated deployment processes Ensure high quality through automated testing and code reviews Collaborate with cross-functional teams in an agile setup Support platform reliability, observability, and operational excellence What we are looking for 5+ years of software development experience: Frameworks: ASP.NET Core (.NET 10), Vue 3 (Composition API) + TypeScript UI library: internal design system Auth: Azure MSAL Browser (Microsoft identity) Testing: Vitest + Vue Test Utils, Allure reporting Hands-on experience with at least one backend technology stack such as: Python, .NET Experience developing REST APIs Experience with cloud platforms such as Azure or AWS Experience with CI/CD (GitHub Actions), automated testing, and DevOps practices Strong communication and stakeholder management skills Experience from regulated environments is considered an advantage Fluency in English, both written and spoken, is expected.

🏢 Summary: Senior Software Engineer role building enterprise digital platforms for the pharmaceutical and life sciences sector. The position covers full-stack, cloud-native development, architecture influence, API design, CI/CD, quality automation, and platform reliability in an international agile team. 🗂️ Requirements: 5+ years of professional software development experience, Strong .NET/ASP.NET Core and/or Python experience, REST API development experience, Vue 3 and TypeScript experience, Azure or AWS cloud platform experience, CI/CD, automated testing, and DevOps knowledge, Software architecture and scalable solution design knowledge, Fluent written and spoken English 📃 Skills: .NET, ASP.NET, Python, Vue, TypeScript, REST, Azure, AWS, GitHub, Vitest, Allure, MSAL, CI/CD, DevOps 🏢 Description: We’re looking for an experienced Senior Software Engineer to join a global product team within the pharmaceutical and life sciences industry . This is a chance to work on modern, enterprise-grade digital platforms where software engineering meets science and real-world business impact . You’ll have the opportunity to influence architecture, contribute to technical decisions, and build solutions that matter — all while working in a truly international, agile environment. What you’ll work on As a Senior Software Engineer, you’ll be involved across the full software development lifecycle — from designing scalable solutions and APIs to delivering modern user-facing functionality. Your responsibilities will include: Designing and implementing scalable backend services and REST APIs Developing modern web applications and intuitive user-facing functionality Contributing to system architecture and technical decision-making Designing and implementing cloud-native solutions Building and improving CI/CD pipelines and automated deployments Ensuring software quality through automated testing and code reviews Working closely with Product Owners, architects, engineers and business stakeholders Supporting platform reliability, observability and operational excellence Contributing to an agile, collaborative engineering culture Your technology playground You’ll work with a modern technology stack including: ASP.NET Core / .NET 10 Vue 3 – Composition API TypeScript REST APIs Python and/or .NET Azure / AWS GitHub Actions & CI/CD Vitest & Vue Test Utils Allure reporting Microsoft Identity / Azure MSAL Browser What we’re looking for We’re looking for someone who brings 5+ years of professional software development experience and is comfortable taking ownership of technical solutions. You’ll ideally have: Strong experience with .NET / ASP.NET Core and/or Python Hands-on experience building REST APIs Solid frontend experience with Vue 3 and TypeScript Experience with cloud platforms , preferably Azure or AWS Practical knowledge of CI/CD, automated testing and DevOps practices A strong understanding of software architecture and scalable solution design Excellent communication and stakeholder management skills Experience working in regulated environments is a strong advantage Fluent English , both written and spoken Why this opportunity? Work globally, remotely – collaborate with colleagues and stakeholders across an international product organisation. Build technology with purpose – your work will contribute to digital platforms supporting research, clinical development and scientific decision-making. Have a technical voice – this isn’t just about writing code. You’ll influence architecture, engineering practices and technical direction. Modern engineering environment – cloud-native development, modern frontend technologies, automation, CI/CD and a strong focus on quality. Cross-functional collaboration – work alongside experienced engineers, architects, Product Owners and business experts in an agile setup. Ready to build software where technology meets science? Apply now and let’s talk.