backend developer

WasteHero

<div>
 
 
 Location:
 
 From Cairo
 
 
 
 Employment:
 
 Full-time
 
 
 
 
 
 🚀 About WasteHero
 
 
 At WasteHero, we&rsquo;re revolutionizing municipal waste management through cutting-edge software. Our
 
 cloud-native SaaS platform
 
 helps cities and private operators optimize routes, automate billing, ensure compliance, and build greener communities.
 
 
 We&rsquo;re already working with municipalities and waste companies across Europe &mdash; including one of the largest public-sector transformation projects all of Europe &mdash; and we&rsquo;re just getting started.
 
 
 
 
 
 WasteHero is a mission-driven scaleup with strong product-market fit, backed by institutional investors and public contracts. Our HQ is in Aarhus, Denmark, where product and engineering
 
 
 sit at the heart of the business.
 
 
 
 
 
 🎯 The Role: Senior Backend Developer
 
 
 We&rsquo;re looking for a
 
 senior backend engineer
 
 who will strengthen our distributed engineering team and help deliver mission-critical features in the coming 12&ndash;18 months.
 
 
 
 
 
 As Senior Backend Developer, you will:
 
 <ul>
 <li>
 Build and maintain
 
 Python/Django + FastAPI services
 
 powering our SaaS ERP platform
 </li>
 <li>
 Design and implement scalable
 
 REST &amp; GraphQL APIs
 
 for integrations with municipal ERP systems
 </li>
 <li>
 Develop
 
 ETL pipelines and migration scripts
 
 (Python/SQL) to handle complex datasets from multiple sources
 </li>
 <li>
 Ensure system reliability, security, and GDPR/NIS2 compliance through robust logging, rollback, and error handling
 </li>
 <li>
 Collaborate daily with colleagues in Aarhus HQ and Finland, UK, Germany, working in an agile delivery setup
 </li>
 <li>
 Contribute to architectural decisions for performance, fault-tolerance, and long-term maintainability
 </li>
 </ul>
 
 
 
 
 🛠 Our Tech Stack
 
 <ul>
 <li>
 
 Python 3, Django, FastAPI
 
 </li>
 <li>
 
 PostgreSQL, Redis, Celery
 
 </li>
 <li>
 
 GraphQL (Graphene), REST APIs
 
 </li>
 <li>
 
 Docker, gunicorn
 
 </li>
 <li>
 
 Bitbucket Pipelines (CI/CD)
 
 </li>
 <li>
 Hosted on
 
 Hetzner
 
 with private networking &amp; load balancing
 </li>
 </ul>
 
 
 
 
 ✅ You Bring
 
 <ul>
 <li>
 5+ years of backend development experience (Python/Django preferred)
 </li>
 <li>
 Strong experience with relational databases (
 
 PostgreSQL/SQL
 
 )
 </li>
 <li>
 Track record of building
 
 production APIs
 
 and backend services at scale
 </li>
 <li>
 Experience with
 
 ETL, migrations, or integration-heavy environments
 
 </li>
 <li>
 Familiarity with Docker, CI/CD, and modern development pipelines
 </li>
 <li>
 Excellent English communication skills (Polish native a plus)
 </li>
 <li>
 Bonus: FastAPI, GraphQL, SaaS platform background, or public-sector software
 </li>
 </ul>
 
 
 
 
 🌟 Why Join WasteHero?
 
 <ul>
 <li>
 
 High-impact role
 
 : Your work directly supports public-sector digitalisation across Europe
 </li>
 <li>
 
 Ownership
 
 : Work on complex, integration-heavy challenges with real autonomy
 </li>
 <li>
 
 Growth
 
 : Be part of a fast-scaling SaaS company with ARR-focused expansion in the Nordics
 </li>
 <li>
 
 Upside
 
 : Competitive salary + stock options
 </li>
 <li>
 
 Culture
 
 : International, mission-driven team with a focus on clarity, fairness, and execution
 </li>
 <li>
 
 Purpose
 
 : Real-world environmental impact at scale
 </li>
 </ul>
</div>

Senior Backend Developer (Python)

Astek Middle East

<div>
 
 We are urgently hiring
 
 Senior Backend Developers
 
 to join our engineering team in Egypt. This role is ideal for professionals with strong backend expertise in
 
 .NET and C#
 
 , solid database design experience, and hands-on exposure to
 
 microservices and event-driven architectures
 
 . You will take ownership of backend systems, contribute to architectural decisions, and work closely with cross-functional teams to deliver scalable and high-quality solutions.
 
 
 
 
 
 
 Key Responsibilities
 
 
 
 Technical Responsibilities
 
 <ul>
 <li>
 Design, develop, and maintain backend applications using
 
 .NET (MVC Razor)
 
 and backend services.
 </li>
 <li>
 Build and optimize
 
 efficient, scalable databases
 
 with strong performance and reliability.
 </li>
 <li>
 Contribute to frontend development when needed, with
 
 React
 
 as a plus.
 </li>
 <li>
 Design and implement
 
 microservices architectures
 
 .
 </li>
 <li>
 Apply
 
 event-driven design patterns
 
 in distributed systems.
 </li>
 <li>
 Develop high-quality, testable code using
 
 Test-Driven Development (TDD)
 
 .
 </li>
 <li>
 Apply
 
 SOLID principles
 
 ,
 
 Clean Architecture
 
 , and
 
 Clean Coding practices
 
 in C#.
 </li>
 <li>
 Design and document APIs following
 
 OpenAPI v3 standards
 
 .
 </li>
 <li>
 Ensure code quality through unit testing, reviews, and best practices.
 </li>
 </ul>
 
 Behavioral &amp; Ownership Responsibilities
 
 <ul>
 <li>
 Take full
 
 ownership of applications
 
 and technical components.
 </li>
 <li>
 Apply
 
 design thinking and critical analysis
 
 to problem solving.
 </li>
 <li>
 Continuously research and stay up to date with new technologies and practices.
 </li>
 <li>
 Challenge existing solutions and propose improvements.
 </li>
 <li>
 Actively participate in
 
 knowledge-sharing sessions
 
 with the team.
 </li>
 </ul>
 
 
 
 
 Requirements
 
 
 Technical Requirements
 
 <ul>
 <li>
 
 5+ years of professional experience
 
 in
 
 .NET and C# backend development
 
 .
 </li>
 <li>
 
 3+ years of experience
 
 in
 
 database design and development
 
 .
 </li>
 <li>
 
 2+ years of experience
 
 working with
 
 microservices architectures
 
 .
 </li>
 <li>
 
 2+ years of experience
 
 with
 
 event-driven systems
 
 .
 </li>
 <li>
 
 3+ years of hands-on experience
 
 applying
 
 Test-Driven Development (TDD)
 
 and unit testing in .NET.
 </li>
 <li>
 Strong practical experience with:
 </li>
 <li>
 
 SOLID principles
 
 </li>
 <li>
 
 Clean Architecture
 
 </li>
 <li>
 
 Clean Coding practices in C#
 
 </li>
 <li>
 
 OpenAPI v3 standards
 
 </li>
 <li>
 Exposure to
 
 React
 
 or frontend development is a plus.
 </li>
 </ul>
 
 Education
 
 <ul>
 <li>
 Bachelor&rsquo;s degree in
 
 Computer Science, Software Engineering
 
 , or a related field (or equivalent experience).
 </li>
 </ul>
 
 
</div>

Senior Backend Developer (.NET / C# / Microservices / SQL / React)

Capgemini

<div>
 Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of 350,000 team members in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms. The Group reported in 2022 global revenues of &euro;22 billion.
 
 
 
 Job Description
 
 
 
 Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of 350,000 team members in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms. The Group reported in 2022 global revenues of &euro;22 billion.
 
 
 We're looking for a passionate and experienced Java Developer Lead to join our vibrant team
 
 
 Experience &amp; Qualification
 
 
 <ul>
 <li>
 Bachelor's degree in Engineering, or a related field (preferred).
 </li>
 <li>
 Minimum 7-10 years experience developing Java/Spring/Spring boot microservices.
 </li>
 <li>
 Excellent communication, interpersonal, and problem-solving skills.
 </li>
 <li>
 Fluency in written and spoken English.
 </li>
 <li>
 Strong analytical and reporting skills.
 </li>
 <li>
 Broad/Deep knowledge of java Spring Spring MVC ,Spring Data JPA / Hibernate and Spring Security
 </li>
 <li>
 Experience building microservices in a k8s environment
 </li>
 <li>
 Capable of leading a team
 </li>
 <li>
 Works well within a globally dispersed team
 </li>
 <li>
 Self starter &amp; self self-motivated
 </li>
 <li>
 Experience in a customer &amp; management facing positions (explaining technology solutions) where required.
 </li>
 <li>
 Experience with building rich live-data applications
 </li>
 <li>
 Capable of design and rapid change
 
 
 </li>
 </ul>
 Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of 350,000 team members in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms. The Group reported in 2022 global revenues of &euro;22 billion.
 
 
 Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you&rsquo;d like, where you&rsquo;ll be supported and inspired by a collaborative community of colleagues around the world, and where you&rsquo;ll be able to reimagine what&rsquo;s possible. Join us and help the world&rsquo;s leading organizations unlock the value of technology and build a more sustainable, more inclusive world.
</div>

Backend Lead Developer

LeadInTop

<div>
 We are looking for a talented Python Developer to help build scalable tools, automation systems, and data pipelines.
 
 
 In this role, you will develop backend services, integrate external APIs, and build data extraction workflows that power intelligent applications and internal tools.
 
 
 Responsibilities
 
 
 Develop backend services and applications using Python
 
 
 Build web scraping and data extraction pipelines
 
 
 Integrate third-party APIs and services
 
 
 Develop automation scripts and internal tools
 
 
 Work with data processing and system integrations
 
 
 
 Requirements
 
 
 <ul>
 <li>
 Strong proficiency in Python
 
 </li>
 <li>
 
 </li>
 <li>
 Experience with REST APIs and backend development
 
 </li>
 <li>
 
 </li>
 <li>
 Experience with web scraping or data extraction
 
 </li>
 <li>
 
 </li>
 <li>
 Ability to build automation scripts and scalable systems
 
 </li>
 <li>
 
 </li>
 <li>
 Nice to Have
 
 </li>
 <li>
 
 </li>
 <li>
 Experience with tools such as:
 
 </li>
 </ul>
 <li>
 Apify
 
 </li>
 <li>
 n8n
 
 </li>
 <li>
 OpenAI Whisper
 
 </li>
 <li>
 Claude Code
 
 </li>
 <li>
 Cursor
 
 </li>
</div>

Python Developer

Beltone

<div>
 
 
 
 Job Purpose :
 
 
 
 <ul>
 <li>
 Responsible for designing, developing, and maintaining high-performance web applications using Oracle APEX. The Oracle APEX Developer manages the full development lifecycle&mdash;from database schema design and PL/SQL backend logic to building intuitive and responsive user interfaces using APEX Universal Theme.
 </li>
 <li>
 The role focuses on delivering scalable, secure, and efficient enterprise applications while ensuring performance optimization, system integration, and user satisfaction.
 </li>
 </ul>
 
 
 
 Job Responsibilities :
 
 
 
 <ul>
 <li>
 Design, develop, and deploy scalable web applications using Oracle APEX
 </li>
 <li>
 Develop complex SQL queries and backend logic using PL / SQL (packages, procedures, functions, triggers)
 </li>
 <li>
 Customize and enhance user interfaces using HTML5, CSS3, JavaScript, jQuery, and AJAX
 </li>
 <li>
 Build and consume RESTful APIs using ORDS (Oracle Rest Data Services) for system integrations
 </li>
 <li>
 Implement secure authentication and authorization mechanisms
 </li>
 <li>
 Ensure applications are protected against SQL injections, XSS, and other vulnerabilities
 </li>
 <li>
 Debug, troubleshoot, and resolve technical issues in existing systems
 </li>
 <li>
 Provide technical support and enhancements based on user feedback
 </li>
 <li>
 Optimize application performance and ensure database efficiency
 </li>
 <li>
 Collaborate with Business Analysts and stakeholders to translate business requirements into technical solutions.
 </li>
 </ul>
 
 
 
 Job Qualifications:
 
 
 
 <ul>
 <li>
 Bachelor&rsquo;s degree in Computer Science, Information Technology, or a related field.
 </li>
 <li>
 Minimum of 3 years major APEX projects from start to finish.
 </li>
 <li>
 Strong ability to translate complex business requirements into technical specifications .
 </li>
 <li>
 Ability to explain technical concepts to non-technical stakeholders (e.g., Business Analysts or departments heads)
 </li>
 <li>
 Oracle APEX Cloud Developer Professional or Oracle PL/SQL Developer Certified Associate
 </li>
 <li>
 Experience with Oracle EBS (E-Business Suite) or Cloud Infrastructure (OCI) &ndash; Preferred
 </li>
 <li>
 Knowledge of DevOps practices (CI/CD pipelines for APEX) is a Plus
 </li>
 <li>
 Familiarity with modern JavaScript frameworks or Oracle JET
 </li>
 <li>
 Strong Command of English
 </li>
 </ul>
</div>

Oracle APEX Developer

Arrow Components

<div>
 
 Position
 
 
 
 Senior Java Software Engineer
 
 
 
 Job Description
 
 
 
 
 Senior Java Software Engineer
 
 
 
 
 Job Summary
 
 
 
 We are looking for a Senior Java Software Engineer to build, enhance, and maintain scalable backend systems. You will work across the software development lifecycle, contribute to solution design, and deliver reliable, high-quality software that directly impacts business outcomes.
 
 
 This role focuses on strong Java engineering fundamentals, with exposure to modern cloud, DevOps, data, and AI-enabled integrations.
 
 
 
 Core Responsibilities
 
 
 
 <ul>
 <li>
 Design, develop, and maintain Java-based backend services across multiple releases.
 </li>
 <li>
 Implement new features, handle change requests, and resolve production defects.
 </li>
 <li>
 Estimate tasks accurately and deliver within agreed timelines.
 </li>
 <li>
 Write clean, maintainable, and well-documented code following clean code principles.
 </li>
 <li>
 Debug and troubleshoot complex issues to identify root causes efficiently.
 </li>
 <li>
 Write unit tests using JUnit and follow test-driven development (TDD) practices.
 </li>
 <li>
 Participate in solution and technical design discussions, applying appropriate design patterns.
 </li>
 <li>
 Develop and maintain RESTful APIs.
 </li>
 <li>
 Collaborate closely with team members and cross-functional teams (QA, DevOps).
 </li>
 <li>
 Contribute to CI/CD pipelines and deployment processes using existing DevOps tooling.
 </li>
 <li>
 Continuously learn and adopt new technologies relevant to backend engineering.
 
 
 </li>
 </ul>
 
 DevOps &amp; Deployment (Expected Exposure, Not Ownership)
 
 
 
 <ul>
 <li>
 Work with Docker-based deployments across different environments.
 </li>
 <li>
 Integrate applications into existing CI/CD pipelines (Jenkins, Kubernetes).
 </li>
 <li>
 Support smooth releases and environment stability in collaboration with DevOps teams.
 
 
 </li>
 </ul>
 
 Security &amp; Quality
 
 
 
 <ul>
 <li>
 Apply secure coding practices and follow OWASP Top 10 guidelines.
 </li>
 <li>
 Implement authentication and authorization using JWT / OAuth2.
 </li>
 <li>
 Ensure high code quality through reviews, testing, and automation.
 
 
 </li>
 </ul>
 
 Required Qualifications
 
 
 
 
 Experience &amp; Education
 
 
 
 <ul>
 <li>
 5+ years of professional experience in Java software development.
 </li>
 <li>
 Bachelor&rsquo;s degree in Computer Science or equivalent practical experience.
 
 
 </li>
 </ul>
 
 Core Technical Skills (Must-Have)
 
 
 
 <ul>
 <li>
 Java: Java 17 or Java 21
 </li>
 <li>
 Spring Ecosystem: Spring, Spring Boot, Spring Data, Spring Security, Spring Cloud
 </li>
 <li>
 Architecture: OOP principles, design patterns, clean code
 </li>
 <li>
 Databases: Oracle or MySQL, database design, ERD
 </li>
 <li>
 ORM: JPA / Hibernate
 </li>
 <li>
 Testing: JUnit and unit testing practices
 </li>
 <li>
 APIs: RESTful web services
 </li>
 <li>
 Messaging: Apache Kafka
 </li>
 <li>
 Build &amp; Version Control: Maven, Git
 </li>
 <li>
 Developer Productivity Tools: Windsurf
 </li>
 <li>
 Experience integrating Generative AI or LLM APIs into backend systems.
 </li>
 <li>
 Interest in applying AI to improve automation, data processing, or developer productivity is highly valued.
 
 
 </li>
 </ul>
 
 Nice-to-Have
 
 
 
 
 
 (Experience in these areas is a plus, not a requirement)
 
 
 
 
 <ul>
 <li>
 Search &amp; Indexing: Elasticsearch
 </li>
 <li>
 Monitoring &amp; Observability: Prometheus, Grafana
 </li>
 <li>
 Big Data: Apache Spark.
 </li>
 <li>
 Cloud Platforms: AWS
 
 
 </li>
 </ul>
 
 What We Offer
 
 
 
 <ul>
 <li>
 Opportunity to work on impactful systems with real business value.
 </li>
 <li>
 Exposure to modern backend architecture, cloud-native tools, and AI-enabled solutions.
 </li>
 <li>
 Collaborative engineering culture with strong technical ownership.
 </li>
 <li>
 Continuous learning and professional growth.
 
 
 </li>
 </ul>
 
 Location:
 
 
 
 EG-Cairo, Egypt (Al Emdad &amp; Al Tamween)
 
 
 
 Time Type
 
 
 
 Full time
 
 
 
 Job Category
 
 
 
 Information Technology
</div>

Senior Java Software Engineer

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:
 
 
 
 As Senior Software Engineer with 5+ year, your responsibilities will include:
 
 
 
 Backend services
 
 : Design, implement, and operate platform components with an emphasis on reliability, performance, and long-term maintainability
 
 
 
 APIs
 
 : Build and evolve and control-plane services using TypeScript and Go for internal and external consumers
 
 
 
 Product owner
 
 : Own features end-to-end, from technical design and implementation through production rollout, monitoring, and iterative improvement
 
 
 
 System design
 
 : Contribute to discussions, evaluating trade-offs between simplicity, scalability, and operational complexity
 
 
 
 Monitoring, Logging &amp; Alerting
 
 : Improve system operability by enhancing logging, metrics, alerting, and deployment workflows
 
 
 
 Code quality
 
 : Participate in code reviews and design discussions, maintaining high standards for code quality, testing, and documentation
 
 
 
 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.
 
 
 
 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.
 
 
 
 Containerization &amp; Orchestration:
 
 Design, implement, and manage containerized application platforms using Docker and Kubernetes, ensuring efficient resource utilization and operational stability.
 
 
 
 Technical Experience
 
 
 
 
 Backend &amp; Systems
 
 
 
 Hands-on experience building backend services in Python/Go and TypeScript, including APIs, background workers, and internal platform tooling
 
 
 Practical understanding of distributed systems concepts such as failure handling, retries, idempotency, and eventual consistency
 
 
 
 Frontend &amp; Full-Stack
 
 
 
 Advanced TypeScript experience building and maintaining production-grade applications
 
 
 Experience with React and Next.js, including server-side rendering, API routes, and modern frontend architecture patterns
 
 
 Strong focus on developer experience and maintainable, scalable frontend codebases
 
 
 
 APIs &amp; Developer Experience
 
 
 
 <ul>
 <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:
 
 
 
 6+ years of professional, enterprise software engineering experience shipping and operating production systems
 
 
 Strong proficiency in TypeScript and Go in real-world production environments
 
 
 Experience building and maintaining applications with Next.js
 
 
 Solid understanding of distributed systems and cloud-native architectures
 
 
 Proven ability to own and deliver complex features from design through production
 
 
 Strong verbal and written communication skills, with the ability to articulate complex technical concepts clearly.
 
 
 Ability to work effectively in a collaborative, global, agile environment.
 
 
 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)

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