Senior Full-Stack Engineer

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🕒 April 27

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opinov8

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2017

🤝 B2B

🏢 Enterprise

B2B • Enterprise

opinov8 is a global digital and engineering solutions company specializing in custom software, cloud, and data services. Headquartered in London with development centers and remote teams across Ukraine, Egypt, Colombia, Portugal and the EU, opinov8 partners with businesses worldwide to accelerate digital transformation through custom engineering, cloud migrations, and data-driven solutions. The company operates as a remote-first B2B services provider serving clients across sectors such as finance, healthcare, logistics, and media.

📋 Description

• Design, develop, and maintain high-quality web applications using C# 14 / .NET 10 and ASP.NET Core Web API • Build and maintain RESTful APIs with Swagger/Swashbuckle documentation, following best practices and extensibility principles • Develop modern, responsive front-end interfaces using React, including hooks, state management, and component architecture • Work with data access patterns using Dapper • Implement clean architecture patterns using MediatR, AutoMapper, and FluentValidation • Integrate and manage caching with Redis • Implement authentication and authorization using JWT Bearer and Azure AD • Set up and maintain observability with Application Insights and Serilog • Develop file/report generation features using NPOI and custom builders • Work with the internal Refit-based SDK for API consumption • Build and maintain CI/CD pipelines via Azure Pipelines (including SonarCloud, test coverage, Docker build/push) • Containerize and deploy applications using Docker (multi-stage builds) • Collaborate with stakeholders to gather requirements, define project scope, and deliver solutions • Participate in code reviews and ensure adherence to coding standards • Continuously learn and stay current with industry trends and best practices

🎯 Requirements

• 5+ years of experience in software development using C# and .NET • Strong expertise in ASP.NET Core Web API development • Solid hands-on experience with React — including virtual DOM, lifecycle methods, hooks, and state management • Hands-on experience with Dapper, FluentMigrator, MediatR, AutoMapper, and FluentValidation • Proficiency in RESTful API design and Swagger/OpenAPI documentation • Experience with Redis caching and SQL Server • Familiarity with JWT / Azure AD authentication approaches • Experience with Azure cloud services, Application Insights, and structured logging (e.g. Serilog) • Knowledge of Docker and containerized deployments • Experience with CI/CD pipelines (Azure Pipelines or similar) • Excellent problem-solving, communication, and teamwork skills.

🏖️ Benefits

• Digital-First Approach: Great talent knows no borders! You can work from wherever you are — we hire and collaborate with professionals worldwide. • Remote Work Model: Balance your professional and personal life with our flexible working conditions, empowering you to deliver your best from anywhere. • Exciting Projects: Dive into impactful projects across industries that challenge and spark creativity. • Boost Your Expertise: Grow your career with continuous learning, development opportunities, and hands-on experience. • Join the Best Team Ever: Collaborate with our diverse and cross-cultural team of passionate technologists and creative thinkers.