Fullstack Developer

Job Description

We are looking for a skilled .NET FullStack Developer with expertise in .NET , React.js and AWS/Azure to join our development team. The ideal candidate should have strong programming skills and experience building scalable web applications using modern technologies.

Key Responsibilities

• Develop and maintain scalable applications using .NET Core.
• Design and implement Microservices architecture and RESTful APIs.
• Build responsive and dynamic user interfaces using React.js.
• Integrate frontend applications with backend APIs.
• Deploy and manage applications on AWS/Azure
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Write clean, maintainable, and efficient code following best development practices.

Required Skills

• Strong experience in .NET development.
• Hands-on experience with Microservices architecture and API development.
• Experience working with React.js, including API integration and design principles.
• Experience with AWS / Azure

Securis360 is looking for experienced and passionate developers to join our growing tech team.

If you love building scalable web applications, solving real-world problems, and working with modern technologies, we’d love to connect with you.

Roles & Responsibilities

• Develop and maintain scalable web applications using the MERN stack
• Build responsive front-end interfaces using React.js
• Develop REST APIs and backend services using Node.js and Express.js
• Work with MongoDB databases and optimize queries
• Collaborate with UI/UX designers and backend teams
• Troubleshoot, debug, and improve application performance
• Write clean, reusable, and efficient code
• Participate in code reviews and project planning
• Develop robust backend applications using Node.js
• Create scalable APIs and microservices
• Integrate databases, third-party APIs, and cloud services
• Optimize application performance and server-side logic
• Ensure security and data protection standards
• Work closely with frontend developers and project managers
• Maintain and improve existing applications 
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Required Skills

• Strong knowledge of MongoDB, Express.js, React.js, and Node.js
• Good understanding of JavaScript, ES6+, HTML5, and CSS3
• Experience with REST APIs and third-party integrations
• Knowledge of Git and version control systems
• Understanding of authentication and security best practices
• Familiarity with cloud platforms and deployment processes is a plus
• Good communication and problem-solving skills
• Strong experience with Node.js and Express.js
• Good understanding of API development and backend architecture
• Experience with MongoDB/MySQL/PostgreSQL
• Knowledge of JWT authentication and API security
• Familiarity with Git, Docker, and deployment workflows
• Experience with AWS or cloud hosting platforms is an advantage
• Strong debugging and analytical skills

Why Join Securis360?

• Work on exciting cybersecurity and technology projects
• Friendly and professional work environment
• Career growth opportunities
• Competitive salary package
• Opportunity to work with modern technologies

About the Role

We are looking for a highly skilled and experienced Junior React Native Developer to join our team and take the lead on developing our cross-platform mobile application. You’ll play a critical role in building, launching, and scaling a high-performance mobile app that runs seamlessly on both iOS and Android platforms from a single codebase.

If you’re passionate about mobile technologies, have a strong command of React Native, and are excited about creating a high-quality product from the ground up, we’d love to hear from you.Responsibilities

• Lead the end-to-end development of a cross-platform mobile application using React Native.
• Collaborate with product managers, designers, and backend engineers to deliver high-quality user experiences.
• Build reusable components and front-end libraries for future use.
• Optimize app performance for speed and scalability across devices and OS versions.
• Ensure the app complies with design standards and platform-specific guidelines (Apple App Store & Google Play).
• Set up CI/CD pipelines for automated builds, testing, and deployment (e.g., using Fastlane, EAS, or similar).
• Integrate RESTful APIs and third-party services.
• Handle app store submissions and updates.
• Mentor junior developers and enforce best practices in mobile development.

Requirements

Must-Have:

• 1+ years of experience in mobile application development.
• 1+ years of hands-on experience with React Native.
• Strong understanding of JavaScript (ES6+), TypeScript, and React architecture.
• Deep knowledge of iOS and Android mobile app development lifecycle.
• Experience with mobile UI/UX best practices and performance optimization.
• Familiarity with native build tools (Xcode, Android Studio).
• Experience integrating REST APIs and handling network latency issues.
• Proficient with Git, GitHub/GitLab, and agile development practices.
• Experience with push notifications, in-app purchases, deep linking, and analytics SDKs.

Preferred:

• Experience with Expo or EAS for managed workflows.
• Familiarity with mobile CI/CD pipelines (Fastlane, Bitrise, etc.).
• Experience with native modules (Objective-C/Swift and Java/Kotlin) as needed.
• Knowledge of automated testing frameworks (Jest, Detox).
• Published apps in both the App Store and Google Play.
• Prior experience in startups or high-growth environments.

What We Offer

• Opportunity to lead and build a product from the ground up.
• Work with a dynamic and talented team in a fast-paced environment.
• Flexible working hours and remote-first culture.
• Competitive salary and equity options (if applicable).
• Learning and development budget.

Full-stack developer  - Remote position

Are you...

• Interested in working at a successful, well-funded start-up where every team member can make a huge contribution?
• Keen to make software that people will use every single day to make their lives easier?
• Excited to work on greenfield projects with responsibility and independence?
• Ready to develop and use your skills across our frontend, backend and mobile offerings?
• Meticulous about quality, and gifted with a strong desire to write beautiful code?

About the company

KeyNest solves the key exchange problem for Airbnb users. Our worldwide network of over 4,000 shops store keys so that Airbnb guests / cleaners / contractors can pick them up whenever is convenient for them. As a global partner of Airbnb we’ve checked-in over 2 million guests.

Why we need you

As the entire Airbnb ecosystem increasingly relies on KeyNest, our customers expect us to integrate additional features without reducing the ease of use that our customers love. This is why we continue to invest in beautiful, intuitive user interfaces that integrate with every tool and are used by our customers, their guests and staff, as well as our own staff.

Our product team is lead by one of the founders and complete with a director of engineering, product manager, UX designer, one mobile developer and one senior full-stack developer who will be mentoring you. We want to work with a developer who cares about the way their code impacts the people who use it.

With a genuine passion for high quality work, attention to detail and readiness to own your own projects, you will be looking for a new and exciting challenge which allows you to use your experience to drive change and maintain the high standards of our organisation.

Our Tech Stack

• C# MVC modern tech stack
• Front end web in TypeScript & Angular or Node & React
• Test Driven Development (TDD) and follow SOLID design principles.
• EF 6.0
• SQL Server 2017
• Agile experience (Scrum, Kanban)
• TFS
• Cloud hosted in Azure with micro-services architecture

Your qualities

• 2-4 years experience in C#
• Front-end web experience in Angular
• Track record of building great products
• Excited about understanding the real problems working people come up against and fixing them with technology
• You’ll love the idea of being a big part of a small team: if you come up with a great idea, you can take it all the way to production
• Motivation and ambition to succeed in a fast-paced environment
• Not afraid to take on responsibilities

What we offer

• Crucial role in a funded, dynamic & fast-growing start-up shaking up the sharing economy
• Competitive salary based on relevant experience
• Flexible working for our most committed staff
• Unparalleled opportunities to develop your career as the company develops rapidly

If you want to join the KeyNest team, please get in touch – we look forward to meeting you.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Responsibilities:

• Works on all stages of the software development life cycle (SDLC).
• Develops, codes, tests, and debugs software and applications using Java.
• Designs features and makes improvements based on user experience data.
• Completes unit testing to identify and fix programming errors.
• Uses common testing and software documentation tools.
• Writes software documentation guides.
• Collaborates with other members of the software development team.