Senior Software Engineer, React Native, Growth Team

🏢 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: 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 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: 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 while working in a truly international, agile environment. Quick Facts • Global, remote collaboration with colleagues and stakeholders across an international product organisation • Digital platforms supporting research, clinical development, and scientific decision-making • Cloud-native development, modern frontend technologies, automation, CI/CD, and a strong focus on quality • Cross-functional agile collaboration with engineers, architects, Product Owners, and business experts 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. Responsibilities • Design and implement scalable backend services and REST APIs • Develop modern web applications and intuitive user-facing functionality • Contribute to system architecture and technical decision-making • Design and implement cloud-native solutions • Build and improve CI/CD pipelines and automated deployments • Ensure software quality through automated testing and code reviews • Work closely with Product Owners, architects, engineers, and business stakeholders • Support platform reliability, observability, and operational excellence • Contribute to an agile, collaborative engineering culture Technology stack • 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 • 5+ years of professional software development experience • Ability to take ownership of technical solutions • 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 • 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 and remotely with colleagues and stakeholders across an international product organisation • Build technology that contributes to digital platforms supporting research, clinical development, and scientific decision-making • Influence architecture, engineering practices, and technical direction • Work in a modern engineering environment with cloud-native development, frontend technologies, automation, CI/CD, and a focus on quality • Collaborate cross-functionally with experienced engineers, architects, Product Owners, and business experts in an agile setup

🏢 Summary: Senior Software Engineer role focused on building AI-powered fintech software for receivables and debt collection. The position involves developing Node.js/NestJS backend services, scalable React applications, APIs, databases, and cloud-native Docker deployments. 🗂️ Requirements: 5+ years of professional software development experience, TypeScript proficiency, Node.js and NestJS proficiency, React application development experience, REST API development experience, GraphQL API development experience, MySQL or relational database experience, Docker and containerized application experience, Cloud platform familiarity, API communication library experience, Strong problem-solving and ownership mindset, Independent and collaborative team working ability, Excellent English communication skills 📃 Skills: TypeScript, Node.js, NestJS, React, REST, GraphQL, MySQL, Docker, Axios, GoogleCloud 🏢 Description: We are looking for a Senior Software Engineer (Node/React) to join a fast-growing European fintech company building AI-powered software that transforms how businesses manage receivables and debt collection. The platform automates financial workflows, streamlines collections, and integrates seamlessly with clients' systems, helping organizations improve cash flow through modern cloud-native technology and intelligent automation. You will play a key role in developing and maintaining backend services, building modern React applications, and contributing to cloud-native deployments. The ideal candidate enjoys solving technical challenges, takes ownership of features, and is passionate about delivering high-quality software while working with modern technologies and AI-powered solutions. Requirements 5+ years of professional software development experience Strong proficiency in TypeScript, Node.js (NestJS), and React Solid experience building modern React applications Experience developing and maintaining REST and GraphQL APIs Hands-on experience with MySQL or other relational databases Experience working with Docker and containerized applications Familiarity with Google Cloud Platform or other cloud platforms Experience using Axios or similar libraries for API communication Strong problem-solving skills with an ownership-driven mindset Ability to work independently while collaborating effectively within a team Excellent English communication skills Nice to Have Experience integrating AI services such as OpenAI APIs Experience with Tailwind CSS, Material UI (MUI), or similar UI frameworks Experience building cloud-native, serverless applications Familiarity with Agile development environments Startup experience Responsibilities Develop and maintain backend services using NestJS (Node.js) and TypeScript Build and enhance modern React applications with a focus on scalability and performance Develop and maintain REST and GraphQL APIs Integrate AI-powered capabilities into the product using modern AI services Design responsive user interfaces using Tailwind CSS, Material UI, and modern frontend technologies Manage application deployment using Docker in a cloud-native environment Design, optimize, and maintain MySQL databases and application data models Collaborate with cross-functional teams to deliver features from concept through production Participate in technical discussions, code reviews, and continuous improvement initiatives Take ownership of features while contributing to product quality, engineering best practices, and ongoing platform development

🏢 Summary: Senior Full Stack Engineer role focused on leading the delivery of scalable, business-critical web applications. The position combines React/Remix front-end development with Python REST APIs, Azure cloud deployment, automated testing, and DevSecOps practices while providing technical leadership in an Agile team. 🗂️ Requirements: Senior full-stack engineering experience, TypeScript, React, Python, RESTful API development, MongoDB, SQL databases, Microsoft Azure, Azure Kubernetes Service, Clean, testable code, Test-driven development, Vitest, Pytest, DevSecOps practices, GitHub workflows, GitHub Actions CI/CD, Kubernetes, ArgoCD, Problem-solving, Technical communication, Bachelor’s degree or equivalent professional experience 📃 Skills: TypeScript, React, Remix, Python, MongoDB, SQL, Azure, AKS, Vitest, Pytest, GitHub, GitHubActions, Kubernetes, ArgoCD, DevSecOps, TDD, GitOps, ES6 🏢 Description: We are seeking an experienced Senior Full Stack Engineer to join a high-performing engineering team responsible for building and enhancing innovative web-based platforms. This role offers the opportunity to work on complex, business-critical applications while driving technical excellence, engineering best practices, and scalable software solutions. As a Senior Engineer, you will take ownership of advanced development initiatives, contribute to architectural decisions, and help shape the future direction of modern web applications. You will work across both front-end and back-end technologies , combining expertise in React-based user interfaces and Python API development to deliver secure, scalable, and maintainable solutions. The ideal candidate will have strong full-stack engineering experience, a passion for clean code and automation, and the ability to solve complex technical challenges within a collaborative, agile environment. Key Responsibilities Lead the design, development, and delivery of complex software engineering initiatives from concept through to production. Architect and build scalable Python RESTful APIs and modern React/Remix-based web applications using service-oriented architecture principles. Develop reusable components, integrations, and technical solutions that improve application scalability and maintainability. Investigate, troubleshoot, and resolve complex technical issues, providing effective solutions and long-term improvements. Establish and promote engineering best practices across development, testing, security, and deployment processes. Champion a DevOps-first mindset , supporting automation, continuous delivery, and operational excellence. Define and address non-functional requirements including performance, accessibility, reliability, and security. Collaborate closely with Product Owners, architects, engineers, and business stakeholders to translate requirements into innovative technical solutions. Provide technical guidance and mentorship to other engineers, encouraging knowledge sharing and continuous improvement. Contribute to Agile delivery practices, supporting effective planning, estimation, and iterative development. Essential Skills & Experience Proven experience as a Senior Full Stack Engineer or similar technical leadership role, delivering complex software solutions. Strong proficiency in TypeScript , including modern ES6+ features and best practices. Extensive experience building dynamic, responsive front-end applications using React , with experience in Remix or similar frameworks preferred. Strong backend development experience using Python , including the design and implementation of RESTful APIs. Solid understanding of database technologies, including MongoDB and relational SQL databases. Hands-on experience with Microsoft Azure , particularly Azure Kubernetes Service (AKS) and cloud-native application deployment. Strong commitment to writing clean, maintainable, and highly testable code. Experience with Test Driven Development (TDD) and automated testing frameworks, including: Unit testing with Vitest and Pytest Functional testing exposure with Playwright is desirable. Strong understanding of modern DevSecOps practices , including: GitHub version control workflows CI/CD automation using GitHub Actions Containerised application deployment using Kubernetes GitOps practices with ArgoCD Excellent problem-solving skills with strong attention to technical detail and quality. Strong communication skills with the ability to collaborate effectively with both technical and non-technical stakeholders. Bachelor’s degree in Computer Science, Engineering, or a related discipline, or equivalent professional experience. Desirable Skills Azure Developer certification, particularly AZ-204 . Experience working with Databricks or modern data platforms. Experience working in Scrum-based Agile environments . Previous experience working with large-scale enterprise applications and distributed systems.

🏢 Summary: Oferta dotyczy rozwoju globalnej, wielomodułowej platformy mobilnej dla sektora paliwowo-detalicznego, obsługującej miliony użytkowników i usługi cyfrowe oraz programy lojalnościowe. Senior React Native Developer będzie projektować, rozwijać i optymalizować aplikacje, podejmować decyzje architektoniczne oraz wspierać zespół poprzez code review i mentoring. 🗂️ Requirements: Minimum 5 lat komercyjnego doświadczenia w tworzeniu oprogramowania, Minimum 4 lata doświadczenia z React Native, Ekspercka znajomość TypeScript, Zaawansowana znajomość nowoczesnego JavaScript, Rozległe doświadczenie z MobX, Znajomość React Query/TanStack Query, synchronizacji danych i React Hooks, Doświadczenie w tworzeniu i utrzymaniu modułów natywnych iOS oraz Android, Doświadczenie z REST API, GraphQL i procesami CI/CD, Język angielski na poziomie minimum C1 📃 Skills: ReactNative, TypeScript, JavaScript, MobX, ReactQuery, TanStackQuery, ReactHooks, iOS, Android, REST, GraphQL, CI/CD 🏢 Description: Wspólnie z naszym Partnerem z sektora paliwowo-detalicznego poszukujemy doświadczonej osoby na stanowisko Senior React Native Developer . Projekt to globalna platforma mobilna z usługami cyfrowymi i programami lojalnościowymi, z której korzystają miliony użytkowników. Jej wielomodułowa architektura pozwala na ponowne wykorzystanie kodu i szybkie wdrażanie nowych funkcji. 💡 TWOJA ROLA: Projektowanie, rozwój i utrzymanie złożonych aplikacji mobilnych w oparciu o React Native oraz TypeScript . Prowadzenie przeglądów kodu, mentoring zespołu oraz promowanie dobrych praktyk inżynierskich. Podejmowanie decyzji architektonicznych i rozwój wielomodułowej platformy mobilnej. Doskonalenie wydajności, niezawodności, skalowalności i utrzymywalności aplikacji. Prowadzenie dyskusji technicznych oraz współtworzenie projektów rozwiązań. Identyfikacja długu technologicznego i inicjowanie usprawnień w bazie kodu. Integracja natywnych funkcji mobilnych oraz usług zewnętrznych. 🔍 CZEGO OCZEKUJEMY OD CIEBIE? Co najmniej 5-letnie komercyjne doświadczenie w wytwarzaniu oprogramowania, w tym minimum 4 lata praktyki z React Native . Ekspercka znajomość TypeScript i nowoczesnego JavaScript oraz rozległe doświadczenie z MobX . Dobra znajomość React Query/TanStack Query , strategii synchronizacji danych oraz React Hooks Doświadczenie w tworzeniu i utrzymaniu modułów natywnych dla iOS oraz Android .. Doświadczenie z REST API , GraphQL oraz procesami CI/CD . Znajomość języka angielskiego na poziomie co najmniej C1 . ✨ OFERUJEMY Nowoczesny proces rekrutacji z AI Rekruterem (AIR) - podczas aplikacji możesz odbyć rozmowę z wirtualnym rekruterem 24/7, bez czekania na telefon. Dostajesz natychmiastowy feedback, a finalną decyzję zawsze podejmuje Rekruter Connectis. Uczestnictwo w spotkaniach integracyjnych oraz meetupach technologicznych, umożliwiających dzielenie się wiedzą i doświadczeniem. Wsparcie dedykowanej osoby kontaktowej z Connectis, dostępnej w celu pomocy w sprawach związanych z projektem. Rozwój kariery i długofalową współpracę w firmie o ugruntowanej pozycji na rynku. Dostęp do najnowszych technologii i narzędzi pracy. 5000 PLN za polecenie znajomego do projektów. Szybki i zdalny proces. Dziękujemy za wszystkie zgłoszenia. Informujemy, że skontaktujemy się wyłącznie z wybranymi osobami. 13286/MP