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backend developer senior

Orange Business

<div>
 
 About Us
 
 
 
 Join us at Orange Business!
 
 
 We are a network and digital integrator that understands the entire value chain of the digital world, freeing our customers to focus on the strategic initiatives that shape their business.
 
 
 Every day, you will collaborate with a team dedicated to providing consistent, sustainable global solutions, no matter where our customers operate. With over 30,000 employees across Asia, the Americas, Africa, and Europe, we offer a dynamic environment to develop and perfect your skills in a field filled with exciting challenges and opportunities.
 
 
 
 About The Role
 
 
 
 The Data &amp; AI department is in charge of decision-making information systems, serving Orange Business Services different line of businesses such as marketing, pre-sales, sales, production, after-sales services, and customer-service for both France and international domains.
 
 
 In this context, the ORBIT will be accessed by OBS Project managers and the Customers&rsquo; local contact (up to 1000 user). It will be mainly used for calculating the profit and loss of different projects
 
 
 The portal will be developed in Agile SCRUM mode and it aims to bring an advanced digital / analytical features.
 
 
 
 Key Tasks And Responsibilities
 
 
 
 The developer will be working closely with the technical lead, the SCRUM master managing the project, in addition to the product IT delivery manager. He/she will be responsible of the back-end development activities.
 
 
 In an Agile context, the back-end developer is required to undertake the following responsibility:
 
 
 <ul>
 <li>
 Build efficient back-end features in Python or using Java springboot.
 </li>
 <li>
 Integrate front-end components into applications.
 </li>
 <li>
 Designing and developing of APIs on a high quality level.
 </li>
 <li>
 Managing the interchange of data between big data platform and front-end components.
 </li>
 <li>
 Collaborating with the front-end developers, UX/UI designers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
 </li>
 <li>
 Ability to understand and disseminate requirements information from requirements documents into practical work instructions such as Jira User stories.
 </li>
 <li>
 Analyze and provide suggestions to identify and improve backend performance and usability. Focus on building scalable backend solutions is a mandate.
 </li>
 <li>
 Estimate level of effort, and offer suggestions to improve processes.
 </li>
 <li>
 Implementation of security and data protection.
 </li>
 <li>
 Prepare technical documentation .
 
 
 </li>
 </ul>
 
 About You
 
 
 
 Functional Skills:
 
 
 <ul>
 <li>
 Strong ability to work in a team
 </li>
 <li>
 Adept at various technologies
 </li>
 <li>
 Excellent written and verbal communication skills
 </li>
 <li>
 Time management
 
 
 </li>
 </ul>
 Technical Skills:
 
 
 <ul>
 <li>
 Proficiency in the following skills and technologies :
 </li>
 <ul>
 <li>
 Microservices design
 </li>
 <li>
 Java SpringBoot development
 </li>
 <li>
 Python using Django as a Python framework.
 </li>
 <li>
 Hands on knowledge of Hadoop, Spark, Kafka, Hive, Impala, Sqoop, Oozie, Hbase, YARN, Zookeeper, Scala, HUE
 </li>
 <li>
 Relational Databases (MySQL/ SQL server/ PostgreSQL ).
 </li>
 <li>
 No SQL databases (MongoDB/Cassandra).
 </li>
 <li>
 Development of RESTful APIs.
 </li>
 <li>
 CI/CD Development.
 </li>
 <li>
 GIT/GITLAB.
 </li>
 <li>
 Linux and shell scripting.
 </li>
 <li>
 Implementing data security capabilities such as tokenization, encryption and anonymization
 </li>
 </ul>
 <li>
 Proficiency in one or more of the following skills and technologies :
 </li>
 <ul>
 <li>
 SOA, EDA, micorservcies and design patterns
 </li>
 <li>
 Javascript , Agular 2+ , HTML5, CSS3
 </li>
 <li>
 Bonus point Java, Node.js
 </li>
 </ul>
 <li>
 Good experience in working in Agile and DevOps is a plus
 </li>
 <li>
 ITIL foundation knowledge (certificate is a plus)
 
 </li>
 </ul>
 Educational background:
 
 
 <ul>
 <li>
 B.Sc. in computer science or equivalent
 </li>
 <li>
 Fluent in English, French is a plus
 
 
 </li>
 </ul>
 Professional Experience:
 
 
 <ul>
 <li>
 5+ Years work Experience in software development activities
 
 
 </li>
 </ul>
 
 What We Offer
 
 
 
 <ul>
 <li>
 Global Opportunities: Work in multi-national teams with opportunity to collaborate with colleagues and customers from all over the world.
 </li>
 <li>
 Flexible Work Environment: Flexible working hours and possibility to combine work from office and home (hybrid ways of working).
 </li>
 <li>
 Professional Development: training programs and upskilling/re-skilling opportunities.
 </li>
 <li>
 Career Growth: Internal growth and mobility opportunities within Orange.
 </li>
 <li>
 Caring and Daring Culture: Health and well-being programs and benefits, diversity &amp; inclusion initiatives, CSR and employee connect events.
 </li>
 <li>
 Reward Programs: Employee Referral Program, Change Maker Awards.
 
 
 </li>
 </ul>
 
 Only Your Skills Matter
 
 
 
 Regardless of your age, gender identity, race, ethnic origin, religion/belief, sexual orientation, marital status, neuroatypia, disability, veteran status or appearance, we encourage diversity within our teams because it is a strength for the collective and a vector of innovation. Orange Group is a disabled-friendly company and equal opportunity employer: don't hesitate to tell us about your specific needs.
</div>

Backend Developer - Senior

Valify Solutions

<div>
 
 Role Description
 
 
 
 This is a full-time hybrid role for a Senior Frontend Developer ReactJS at Valify Solutions. The Senior Frontend Developer will be responsible for back-end and front-end web development, responsive web design, and software development. This role will involve collaborating with the team while also having the flexibility for some remote work.
 
 
 
 What You&rsquo;ll Do As a ReactJS Developer
 
 
 
 <ul>
 <li>
 Develop and maintain responsive web and mobile applications integrated with a Python backend.
 </li>
 <li>
 Build interactive, scalable dashboards for data visualization and management.
 </li>
 <li>
 Collaborate with the design and backend teams to deliver seamless user experiences.
 </li>
 <li>
 Optimize application performance for smooth user interaction
 </li>
 </ul>
</div>

Frontend Developer

Tahaluf Al Emarat Technical Solutions تحالف الإمارات للحلول التقنية

<div>
 
 We are looking to hire a
 
 Senior .NET Developer
 
 with
 
 strong hands‑on experience in Node.js
 
 to join our team on a
 
 remote basis from Egypt
 
 . This role is ideal for someone who is comfortable working across modern backend technologies and contributing to scalable, high‑performance applications.
 
 
 🔧 Key Responsibilities
 
 <ul>
 <li>
 Design, develop, and maintain backend services using
 
 .NET (.NET Core / ASP.NET Core)
 
 </li>
 <li>
 Build and support server‑side applications and APIs using
 
 Node.js
 
 </li>
 <li>
 Develop and consume
 
 RESTful APIs
 
 and integrate with third‑party services
 </li>
 <li>
 Collaborate with frontend developers, architects, and product teams
 </li>
 <li>
 Write clean, secure, and well‑documented code
 </li>
 <li>
 Participate in code reviews and contribute to technical design decisions
 </li>
 <li>
 Troubleshoot, debug, and optimize application performance
 </li>
 <li>
 Follow best practices for security, scalability, and maintainability
 </li>
 </ul>
 
 ✅ Required Skills &amp; Experience
 
 <ul>
 <li>
 
 5&ndash;7+ years of professional experience
 
 in backend development
 </li>
 <li>
 Strong expertise in
 
 .NET / ASP.NET Core
 
 </li>
 <li>
 
 Solid hands‑on experience with Node.js
 
 (Express, NestJS, or similar frameworks)
 </li>
 <li>
 Good knowledge of
 
 JavaScript / TypeScript
 
 </li>
 <li>
 Experience with SQL databases (SQL Server, PostgreSQL, or MySQL)
 </li>
 <li>
 Familiarity with API design, authentication, and authorization mechanisms
 </li>
 <li>
 Experience working with Git and modern development workflows
 </li>
 <li>
 Strong problem‑solving and communication skills
 </li>
 <li>
 Ability to work independently in a
 
 remote environment
 
 </li>
 </ul>
 
 
</div>

Senior .NET Developer (Node.js)

Systems Limited - Egypt

<div>
 
 
 Job Summary
 
 
 
 We are looking for a
 
 Senior .NET Developer
 
 with experience in
 
 FinTech systems
 
 to design and develop secure, scalable, and high-performance backend services for financial applications.
 
 
 
 Key Responsibilities
 
 
 <ul>
 <li>
 Develop and maintain backend services using
 
 C#, .NET Core, ASP.NET Core
 
 </li>
 <li>
 Build and integrate
 
 RESTful APIs and microservices
 
 </li>
 <li>
 Ensure
 
 data security, integrity, and compliance
 
 </li>
 <li>
 Design and optimize
 
 database structures and queries
 
 </li>
 <li>
 Participate in
 
 code reviews and mentor junior developers
 
 </li>
 <li>
 Troubleshoot production issues and improve system performance
 </li>
 </ul>
 
 
 Requirements
 
 
 <ul>
 <li>
 
 4+ years
 
 of software development experience
 </li>
 <li>
 Strong experience in
 
 C#, .NET / .NET Core / ASP.NET Core
 
 </li>
 <li>
 Experience in
 
 FinTech or financial systems
 
 </li>
 <li>
 Knowledge of
 
 SQL Server / PostgreSQL
 
 </li>
 <li>
 Experience with
 
 Entity Framework or Dapper
 
 </li>
 <li>
 Understanding of
 
 Microservices architecture and API security
 
 </li>
 <li>
 Familiarity with
 
 CI/CD and DevOps practices
 
 </li>
 </ul>
 
 
 Preferred
 
 
 <ul>
 <li>
 Experience with
 
 Azure / AWS
 
 </li>
 <li>
 Knowledge of
 
 Kafka or RabbitMQ
 
 </li>
 <li>
 Experience with
 
 Docker / Kubernetes
 
 </li>
 <li>
 Familiarity with
 
 PCI-DSS or ISO 27001
 
 standards
 </li>
 </ul>
 
 
 Education
 
 
 
 Bachelor&rsquo;s degree in
 
 Computer Science, Engineering, or related field
 
 .
 
</div>

Dotnet Developer

QNBeyond Plus

<div>
 
 About the Role
 
 
 We are looking for a
 
 Senior Java Backend Developer
 
 to join our engineering team and contribute to building scalable, high-performance backend services for our digital banking platform.
 
 
 The ideal candidate will have strong experience in
 
 Java and Spring Boot
 
 , designing
 
 microservices-based architectures
 
 , and developing secure, scalable APIs. In this role, you will also contribute to
 
 technical architecture decisions
 
 , mentor junior developers, and help drive engineering best practices.
 
 
 You will work closely with product managers, architects, and frontend engineers to deliver reliable and efficient backend systems that power modern digital banking solutions.
 
 
 Key Responsibilities
 
 
 Backend Development
 
 <ul>
 <li>
 Design, develop, and maintain backend services using
 
 Java and Spring Boot
 
 .
 </li>
 <li>
 Build scalable
 
 microservices architectures
 
 supporting high-volume digital platforms.
 </li>
 <li>
 Develop and maintain
 
 RESTful APIs
 
 for internal and external integrations.
 </li>
 </ul>
 
 System Architecture
 
 <ul>
 <li>
 Contribute to system design and backend architecture decisions.
 </li>
 <li>
 Ensure
 
 high availability, performance, and scalability
 
 of backend services.
 </li>
 <li>
 Implement
 
 secure coding practices
 
 aligned with enterprise security standards.
 </li>
 </ul>
 
 Integration
 
 <ul>
 <li>
 Integrate backend services with
 
 internal systems and third-party platforms
 
 .
 </li>
 <li>
 Work with messaging systems such as
 
 Kafka or other event-driven technologies
 
 .
 </li>
 </ul>
 
 Collaboration
 
 <ul>
 <li>
 Collaborate closely with
 
 frontend developers, product managers, and QA teams
 
 .
 </li>
 <li>
 Participate in
 
 Agile/Scrum development processes
 
 .
 </li>
 <li>
 Mentor junior developers and contribute to knowledge sharing.
 </li>
 </ul>
 
 Performance &amp; Quality
 
 <ul>
 <li>
 Write
 
 clean, maintainable, and testable code
 
 .
 </li>
 <li>
 Troubleshoot and optimize
 
 application performance
 
 .
 </li>
 <li>
 Ensure code quality through
 
 testing, code reviews, and CI/CD pipelines
 
 .
 </li>
 </ul>
 
 Required Qualifications
 
 
 Experience
 
 <ul>
 <li>
 
 5&ndash;10 years of experience in Java backend development
 
 </li>
 <li>
 Strong experience with
 
 Spring Boot and microservices architecture
 
 </li>
 <li>
 Proven experience building
 
 REST APIs
 
 </li>
 </ul>
 
 Technical Skills
 
 <ul>
 <li>
 Java
 </li>
 <li>
 Spring Boot
 </li>
 <li>
 Microservices architecture
 </li>
 <li>
 RESTful API development
 </li>
 <li>
 SQL and relational databases (PostgreSQL, MySQL, or similar)
 </li>
 <li>
 Git version control
 </li>
 <li>
 Docker / containerization
 </li>
 <li>
 CI/CD pipelines
 </li>
 </ul>
 
 Security &amp; Integration
 
 <ul>
 <li>
 Authentication and authorization frameworks (
 
 OAuth2, JWT
 
 )
 </li>
 <li>
 API security best practices
 </li>
 </ul>
 
 Professional Skills
 
 <ul>
 <li>
 Strong problem-solving and analytical skills
 </li>
 <li>
 Ability to work in
 
 Agile environments
 
 </li>
 <li>
 Strong communication and collaboration skills
 </li>
 </ul>
 
 Preferred Qualifications
 
 <ul>
 <li>
 Experience with
 
 event-driven architectures (Kafka or similar)
 
 </li>
 <li>
 Experience with
 
 cloud platforms or container orchestration (Kubernetes)
 
 </li>
 <li>
 Experience building
 
 high-availability enterprise systems
 
 </li>
 <li>
 Experience in
 
 digital banking, fintech, or financial services platforms
 
 </li>
 </ul>
</div>

Senior Java Backend Developer

Siemens Digital Industries Software

<div>
 Siemens Digital Industries Software is a leading provider of solutions for the design, simulation, and manufacture of products across many different industries. Formula 1 cars, skyscrapers, ships, space exploration vehicles, and many of the objects we see in our daily lives are being conceived and manufactured using our Product Lifecycle Management (PLM) software and hardware emulation.
 
 
 This role provides a unique opportunity for a full-stack developer skilled in enterprise infrastructure operations. You will work as part of our global Platform Engineering team, simplifying self-service and operations for our global engineering infrastructure.
 
 
 
 Key Responsibilities:
 
 
 
 <ul>
 <li>
 As Senior Software Engineer with 8+ year, your responsibilities will include:
 </li>
 <li>
 Backend services: Design, implement, and operate platform components with an emphasis on reliability, performance, and long-term maintainability
 </li>
 <li>
 APIs: Build and evolve and control-plane services using TypeScript and Go for internal and external consumers
 </li>
 <li>
 Product owner: Own features end-to-end, from technical design and implementation through production rollout, monitoring, and iterative improvement
 </li>
 <li>
 System design: Contribute to discussions, evaluating trade-offs between simplicity, scalability, and operational complexity
 </li>
 <li>
 Monitoring, Logging &amp; Alerting: Improve system operability by enhancing logging, metrics, alerting, and deployment workflows
 </li>
 <li>
 Code quality: Participate in code reviews and design discussions, maintaining high standards for code quality, testing, and documentation
 </li>
 <li>
 Infrastructure Design &amp; Implementation: Design, provisioning, and management of highly available, scalable, and secure cloud infrastructure (e.g., AWS, Azure, GCP, OpenStack) using Infrastructure as Code (IaC) principles.
 </li>
 <li>
 Automation &amp; CI/CD: Develop, maintain, and optimize robust CI/CD pipelines (e.g., Jenkins, GitLab CI, Azure DevOps, Argo CD) to automate software delivery, testing, and deployment processes.
 </li>
 <li>
 Containerization &amp; Orchestration: Design, implement, and manage containerized application platforms using Docker and Kubernetes, ensuring efficient resource utilization and operational stability.
 
 
 </li>
 </ul>
 
 Technical Experience
 
 
 
 <ul>
 <li>
 Backend &amp; Systems
 </li>
 <li>
 Hands-on experience building backend services in Python/Go and TypeScript, including APIs, background workers, and internal platform tooling
 </li>
 <li>
 Practical understanding of distributed systems concepts such as failure handling, retries, idempotency, and eventual consistency
 </li>
 <li>
 Frontend &amp; Full-Stack
 </li>
 <li>
 Advanced TypeScript experience building and maintaining production-grade applications
 </li>
 <li>
 Experience with React and Next.js, including server-side rendering, API routes, and modern frontend architecture patterns
 </li>
 <li>
 Strong focus on developer experience and maintainable, scalable frontend codebases
 </li>
 <li>
 APIs &amp; Developer Experience
 </li>
 <li>
 Design and implementation of well-structured REST APIs with clear versioning, consistent error handling, and thorough documentation
 </li>
 <li>
 Development of internal tools, SDKs, and CLIs that improve developer productivity and reduce operational friction
 
 
 </li>
 </ul>
 
 Qualifications:
 
 
 
 <ul>
 <li>
 8+ years of professional, enterprise software engineering experience shipping and operating production systems
 </li>
 <li>
 Strong proficiency in TypeScript and Go in real-world production environments
 </li>
 <li>
 Experience building and maintaining applications with Next.js
 </li>
 <li>
 Solid understanding of distributed systems and cloud-native architectures
 </li>
 <li>
 Proven ability to own and deliver complex features from design through production
 </li>
 <li>
 Strong verbal and written communication skills, with the ability to articulate complex technical concepts clearly.
 </li>
 <li>
 Ability to work effectively in a collaborative, global, agile environment.
 
 
 </li>
 </ul>
 Why us?
 
 
 Working at Siemens Software means flexibility - Choosing between working at home and the office at other times is the norm here. We offer great benefits and rewards, as you'd expect from a world leader in industrial software. A collection of over 377,000 minds building the future, one day at a time in over 200 countries. We're dedicated to equality, and we welcome applications that reflect the diversity of the communities we work in. All Employment decisions at Siemens are based on qualifications, merit, and business need. Bring your curiosity and Creativity and help us shape tomorrow!
 
 
 Siemens Software. Transform the Everyday
 
 
 #SWSaaS
 
 
</div>

Infrastructure Tools Engineer - PE (Full Stack)

Crossworkers-Egypt

<div>
 
 Title:
 
 Senior C# / .NET Core Developer
 
 
 
 Industry:
 
 IT Software
 
 
 
 Reporting Line:
 
 Engineering Manager/ Service Delivery Manager
 
 
 
 Position Type:
 
 Full Time
 
 
 
 Location:
 
 Cairo
 
 
 We are looking for a highly skilled and driven Senior C# / .NET Core Developer to build and evolve modern backend systems within a complex, service-based architecture. This role involves working on high-performance services, including edge and IoT scenarios, while leveraging modern development practices and AI-enhanced workflows.
 
 
 
 
 Key Responsibilities:
 
 
 
 Backend Development:
 
 
 
 <ul>
 <li>
 Design, build, and maintain backend and background services using modern .NET
 </li>
 <li>
 Develop and maintain REST and gRPC APIs
 </li>
 <li>
 Work within a large, mature codebase by extending, refactoring, and modernizing services
 </li>
 <li>
 Design efficient data access layers using relational databases
 
 
 </li>
 </ul>
 
 System Architecture &amp; Performance:
 
 
 
 <ul>
 <li>
 Build and operate distributed and event-driven systems
 </li>
 <li>
 Ensure high performance and resource efficiency, especially in edge/IoT environments
 </li>
 <li>
 Apply spike-driven development to validate new features and approaches
 
 
 </li>
 </ul>
 
 AI &amp; Modern Practices:
 
 
 
 <ul>
 <li>
 Leverage AI tools and adapt to agentic workflows to enhance development efficiency
 </li>
 <li>
 Continuously explore and adopt modern technologies and practices
 
 
 </li>
 </ul>
 
 Collaboration &amp; DevOps:
 
 
 
 <ul>
 <li>
 Collaborate with cross-functional teams and contribute to shared architecture standards
 </li>
 <li>
 Use Docker and Azure DevOps (CI/CD pipelines) to support development workflows
 
 
 </li>
 </ul>
 
 
 Desired Skills:
 
 
 
 
 <ul>
 <li>
 Strong expertise in C# and modern .NET (latest versions)
 </li>
 <li>
 Experience with ORMs (e.g., Entity Framework) and relational databases (SQL Server, PostgreSQL, Azure SQL)
 </li>
 <li>
 Solid understanding of asynchronous programming, multithreading, and concurrency
 </li>
 <li>
 Experience building REST APIs and gRPC services
 </li>
 <li>
 Strong experience in unit testing and writing clean, maintainable code
 </li>
 <li>
 Experience with distributed systems and service-based architectures
 </li>
 <li>
 Familiarity with event-driven architectures and messaging patterns
 </li>
 <li>
 Hands-on experience with Docker and CI/CD pipelines (Azure DevOps)
 </li>
 <li>
 Experience working within complex, existing codebases
 </li>
 <li>
 Strong problem-solving and critical thinking skills
 </li>
 <li>
 Experience or interest in AI tools and agentic workflows
 </li>
 <li>
 Very good English communication skills
 
 
 </li>
 </ul>
 
 
 Nice to Have:
 
 
 
 
 <ul>
 <li>
 Experience with Azure services (APIM, AGW, AKS, IoT Edge, Functions, Blob Storage)
 </li>
 <li>
 Experience with time-series databases (InfluxDB, TimescaleDB)
 </li>
 <li>
 Experience with MQTT or similar messaging systems
 </li>
 <li>
 General cloud architecture knowledge
 </li>
 <li>
 Interest in experimenting with new technologies
 </li>
 <li>
 Knowledge sharing and mentoring mindset
 
 
 </li>
 </ul>
 
 
 What We Value:
 
 
 
 
 <ul>
 <li>
 Ownership and a self-driven mindset
 </li>
 <li>
 Clean code, maintainability, and strong documentation practices
 </li>
 <li>
 Pragmatic approach to evolving and modernizing systems
 </li>
 <li>
 Willingness to understand systems end-to-end
 </li>
 <li>
 Proactive adoption of new technologies, especially AI-driven approaches
 </li>
 <li>
 Strong collaboration and knowledge-sharing culture
 
 
 </li>
 </ul>
 
 
 What We Offer:
 
 
 
 
 <ul>
 <li>
 Competitive salary
 </li>
 <li>
 Social &amp; Medical insurance
 </li>
 <li>
 Flexible working environment
 </li>
 <li>
 Professional and supportive work environment
 </li>
 <li>
 Access to modern tools and technologies
 </li>
 <li>
 Continuous learning and development opportunities
 </li>
 <li>
 Clear career growth path
 
 
 </li>
 </ul>
 
 
 About
 
 
 CrossWorkers
 
 
 We are a Danish-owned software offshoring company providing European clients with professional Egyptian developers.
 
 
 We have been in business since 2009, delivering high-quality software development services and building long-term partnerships.
 
 
 Our headquarters are in Copenhagen, Denmark, and our Offshore Development Center is located in the Fifth Settlement, New Cairo.
 
 
 We also have a growing presence across Sweden, Norway, Finland, Switzerland, the UK, Germany, and Bahrain.
</div>

Senior C# / .NET Core Developer

Explore 337+ Backend developer senior in Cairo this May. Find roles across top companies and apply now to boost your career.