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senior backend developer python

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>
 
 
 
 
 📍
 
 Hybrid- Cairo office -
 
 with occasional visits to our Aarhus HQ for onboarding and key team moments.
 
</div>

Senior Backend Developer (Python)

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)

SWATX

<div>
 Job Title: Senior Java Developer (Spring Boot)
 
 
 Job Description:
 
 
 We are looking for a highly skilled Java Developer with strong hands-on experience in Spring Boot to join our
 
 
 development team. The ideal candidate will have at least 5 years of professional experience in Java backend
 
 
 development, with a deep understanding of designing and building scalable, secure, and high-performance APIs and
 
 
 microservices using the Spring ecosystem.
 
 
 Key Responsibilities:
 
 
 <ul>
 <li>
 Design, develop, and maintain backend services and REST APIs using Java and Spring Boot
 </li>
 <li>
 Build and maintain microservices architecture with clear service boundaries and scalability in mind
 </li>
 <li>
 Integrate with databases, message brokers, and external systems using industry-standard patterns
 </li>
 <li>
 Write clean, maintainable, and well-documented code following best practices and coding standards
 </li>
 <li>
 Conduct code reviews and participate in sprint planning, daily stand-ups, and retrospectives
 </li>
 <li>
 Collaborate with frontend developers, DevOps, and QA engineers to deliver complete solutions
 </li>
 <li>
 Monitor application performance and troubleshoot issues in development and production environments
 
 
 </li>
 </ul>
 Qualifications:
 
 
 <ul>
 <li>
 Bachelor's degree in Computer Science, Engineering, or a related field
 </li>
 <li>
 5+ years of hands-on experience in Java development
 </li>
 <li>
 Solid expertise in Spring Boot, Spring MVC, Spring Data JPA, and Spring Security
 </li>
 <li>
 Proficient in building RESTful APIs and integrating with external services
 </li>
 <li>
 Strong experience with relational databases (e.g., PostgreSQL, MySQL) and JPA/Hibernate
 </li>
 <li>
 Familiarity with unit testing frameworks (JUnit, Mockito) and test-driven development
 </li>
 <li>
 Experience with Maven or Gradle, Git, and CI/CD pipelines
 </li>
 <li>
 Good understanding of microservices, containerization (Docker), and working in cloud environments
 
 
 </li>
 </ul>
 (AWS/Azure/GCP).
 
 
 Preferred Skills:
 
 
 <ul>
 <li>
 Experience with message queues (e.g., Kafka, RabbitMQ)
 </li>
 <li>
 Exposure to frontend technologies (e.g., Angular or React) is a plus
 </li>
 <li>
 Familiarity with NoSQL databases (e.g., MongoDB, Redis)
 </li>
 <li>
 Understanding of DevOps concepts and CI/CD pipelines
 </li>
 <li>
 Knowledge of security best practices in backend services
 </li>
 </ul>
</div>

Senior Java Developer

sonnen Egypt

<div>
 
 Standort
 
 
 
 Cairo, EG
 
 
 
 Stellen-ID
 
 : 4745
 
 
 Join the energy revolution with #teamsonnen!
 
 
 At sonnen, we&rsquo;re driven by a clear goal: creating a future powered by clean, affordable energy for everyone. That&rsquo;s why we make our customers independent &ndash; not only from fossil fuels, but also from rising electricity costs.
 
 
 The key to this independence is our intelligent, all-in-one energy system. It combines solar panels, battery storage, energy tariffs, and wallboxes &ndash; all developed and manufactured in Germany.
 
 
 As the first and only provider in Germany, we also connect thousands of home batteries into one shared network: the sonnenVPP, our industry-leading virtual power plant.
 
 
 In short: every day, we&rsquo;re working to shape the energy future. And we&rsquo;d be thrilled to have you join us!
 
 
 We are looking for a
 
 Senior Backend Software Engineer - Python (m/f/d)
 
 to join one of our Energy Operations teams. In this exciting position, you will contribute to a new globally scaled project, which will automate and manage the lifecycle of sonnen's consumer service products. We work in remote and agile style in cross functional teams consisting of product owner, software engineers and requirements engineers. We also emphasize a collaborative approach and we are dedicated in fostering a positive and inclusive team culture.
 
 
 
 What You Will Do To Help Drive Energy Transition
 
 
 
 <ul>
 <li>
 Collaborate within your team and across teams to design, implement, test, document and deliver scalable and reliable services for automating business processes
 </li>
 <li>
 Actively contribute to code reviews, ensuring code quality and best practices.
 </li>
 <li>
 Drive innovation by suggesting and implementing improvements in software development processes, tools, and technologies.
 </li>
 <li>
 Work closely with domain experts in your team to understand requirements and translate them into technical solutions
 </li>
 <li>
 Mentor and coach less experienced engineers in your team
 
 
 </li>
 </ul>
 
 What You Will Need For That Journey
 
 
 
 <ul>
 <li>
 At least 5 years experience building, testing and maintaining cloud-based services with (at least partly) Python, ideally with FastAPI
 </li>
 <li>
 Proficiency in cloud services such as AWS (e.g., Lambda, S3, RDS, API Gateway, EC2, etc.).
 </li>
 <li>
 Experience with REST-ful as well as event-based architectures
 </li>
 <li>
 Solid understanding and practical experience with infrastructure-as-code tools like Terraform.
 </li>
 <li>
 Familiarity with monitoring tools such as Sentry, Datadog and CloudWatch.
 </li>
 <li>
 Strong knowledge of database systems, particularly PostgreSQL.
 </li>
 <li>
 Knowledge of CI/CD pipelines and associated tools like Github or GitLab
 </li>
 <li>
 Hands-on experience with designing scalable and maintainable systems from scratch
 </li>
 <li>
 A strong appreciation for creating high-quality and documented solutions
 </li>
 <li>
 You take an active part in the process of translating business requirements into solutions and are able to explain technical feasibility and limitations to non-technical colleagues
 
 
 </li>
 </ul>
 You feel we are a match? Apply now and help us to shape the energy transition together. We look forward to welcoming you to
 
 #teamsonnen
 
 !
 
 
 
 sonnen - energy is yours!
 
 
 
 
 Stellensegment:
 
 Testing, Cloud, Database, Developer, Technology
</div>

Senior Backend Software Engineer - Python (m/f/d)

Swisstech

<div>
 
 
 About Swisstech
 
 
 
 
 Swisstech
 
 is a Fintech infrastructure company delivering scalable, secure software platforms to licensed financial institutions. From white-label digital banking systems to modular onboarding and transaction tools, we support clients in launching and managing reliable Fintech operations globally.
 
 
 We develop full-cycle solutions that are performance-driven, compliant, and production-ready.
 
 
 &nbsp;
 
 
 
 Role Overview
 
 
 
 We&rsquo;re looking for a motivated and detail-oriented
 
 frontend developer
 
 with solid experience in
 
 React and Next.js
 
 .
 
 
 
 
 
 You will work closely with senior engineers, backend developers, and UI/UX designers to deliver secure, scalable, and performance-optimized interfaces for fintech platforms.
 
 
 This role is ideal for someone who:
 
 <ul>
 <li>
 Writes clean, maintainable code
 </li>
 <li>
 Understands modern frontend architecture
 </li>
 <li>
 Is comfortable working in structured Agile environments
 </li>
 <li>
 Wants to grow into a senior-level engineer
 </li>
 </ul>
 
 
 
 
 
 Responsibilities
 
 
 <ul>
 <li>
 Develop responsive and scalable frontend applications using
 
 React and Next.js
 
 </li>
 <li>
 Implement UI designs accurately and efficiently
 </li>
 <li>
 Integrate frontend applications with RESTful APIs
 </li>
 <li>
 Contribute to component libraries and reusable UI systems
 </li>
 <li>
 Optimize performance and ensure cross-browser compatibility
 </li>
 <li>
 Participate in code reviews and follow team standards
 </li>
 <li>
 Collaborate in sprint planning and technical discussions
 </li>
 <li>
 Debug and resolve frontend issues in staging and production environments
 </li>
 </ul>
 
 
 
 
 
 Qualifications
 
 
 <ul>
 <li>
 +3 years of professional frontend development experience
 </li>
 <li>
 Strong proficiency in
 
 JavaScript (ES6+), React, and Next.js
 
 </li>
 <li>
 Good understanding of SSR concepts and routing in Next.js
 </li>
 <li>
 Experience with state management (Context API, Redux, or similar)
 </li>
 <li>
 Experience integrating with backend APIs
 </li>
 <li>
 Solid understanding of HTML5, CSS3, and responsive design
 </li>
 <li>
 Familiarity with Git and Agile workflows
 </li>
 <li>
 Good problem-solving and communication skills
 </li>
 </ul>
 
 
 
 
 
 Nice to Have
 
 
 <ul>
 <li>
 Experience with TypeScript
 </li>
 <li>
 Familiarity with frontend testing tools (Jest, Cypress)
 </li>
 <li>
 Exposure to fintech, SaaS, or multi-tenant systems
 </li>
 <li>
 Basic understanding of CI/CD workflows
 </li>
 <li>
 English proficiency
 </li>
 </ul>
 
 
 
 
 
 Why join Swisstech
 
 
 <ul>
 <li>
 High-Impact Engineering Role: Shape the foundation of a mission-critical platform
 </li>
 <li>
 Remote Flexibility: Work hybridly
 </li>
 <li>
 Autonomy &amp; Ownership: Architect, build, and lead critical systems
 </li>
 <li>
 Real Impact: Ship code that powers global financial platforms
 </li>
 <li>
 Cutting-Edge Stack: Work with modern tools on real challenges
 </li>
 <li>
 Competitive Compensation: Your experience is recognized and rewarded
 </li>
 <li>
 Cutting-Edge Projects: Build tech for modern FinTech institutions
 </li>
 <li>
 Wellness Support: Internet, fitness allowances and other benefits
 </li>
 <li>
 Team Culture: Join a collaborative and innovative environment shaping the future of finance
 </li>
 </ul>
 
 
 
</div>

Mid-Level Frontend Developer (React & Next.js)

ABMEGYPT

<div>
 
 
 Type: Full-Time [Hybrid]
 
 
 
 Location: New Cairo
 
 
 
 
 Key Responsibilities:
 
 <ul>
 <li>
 Build Python automation scripts that interact with web pages (using Playwright or similar frameworks).
 </li>
 <li>
 Parse and process dynamic web content.
 </li>
 <li>
 Handle image extraction and basic image processing tasks.
 </li>
 <li>
 Design and maintain backend services (e.g., FastAPI) to receive and process uploaded data.
 </li>
 <li>
 Implement reliable communication between automation scripts and backend endpoints.
 </li>
 <li>
 Write clean, testable, and maintainable code with proper error handling and logging.
 </li>
 <li>
 Ensure reliable automation workflows that can handle asynchronous or concurrent tasks.
 </li>
 <li>
 Collaborate on improving system performance, deployment, and monitoring on Ubuntu/Linux servers.
 </li>
 </ul>
 
 Requirements:
 
 
 Core Must-Haves:
 
 <ul>
 <li>
 Professional Python development experience.
 </li>
 <li>
 Experience with browser automation tools (Playwright, Selenium, or Puppeteer).
 </li>
 <li>
 Strong knowledge of HTTP/HTTPS fundamentals, including requests, headers, cookies, and redirects.
 </li>
 <li>
 Ability to parse and work with HTML (e.g., using BeautifulSoup, lxml, or Playwright locators).
 </li>
 <li>
 Familiarity with image processing in Python (PIL/Pillow, NumPy, OpenCV).
 </li>
 <li>
 Experience building and consuming REST APIs (preferably with *FastAPI* or Flask).
 </li>
 <li>
 Proficiency in Linux/Ubuntu: running services, handling logs, basic networking.
 </li>
 <li>
 Solid understanding of Git and collaborative workflows (PRs, code reviews).
 </li>
 </ul>
 
 Nice-to-Have:
 
 <ul>
 <li>
 Experience with asynchronous programming (asyncio, Celery).
 </li>
 <li>
 Familiarity with Docker and container-based deployments.
 </li>
 <li>
 Knowledge of Redis, PostgreSQL, or MongoDB.
 </li>
 <li>
 Exposure to basic web security concepts (CORS, CSRF, authentication).
 </li>
 <li>
 Understanding of simple machine learning or computer vision approaches for classification tasks.
 </li>
 </ul>
 
 
 
</div>

Python Developer (Automation, Scraping & Web-Crawling)

BairesDev

<div>
 
 At BairesDev&reg;, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley.
 
 
 
 
 
 Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive significant impact worldwide.
 
 
 
 
 
 When you apply for this position, you're taking the first step in a process that goes beyond the ordinary. We aim to align your passions and skills with our vacancies, setting you on a path to exceptional career development and success.
 
 
 
 
 
 Semi Senior React Developer at BairesDev
 
 
 
 
 
 Join our development team as a Semi Senior React Developer to build complex web applications. You'll collaborate on challenging projects, optimize application performance, and implement advanced features.
 
 
 
 
 
 What you will do
 
 
 
 
 
 - Devise practical and efficient React-based solutions for complex web application problems, focusing on optimization and user experience.
 
 
 - Debug complex application issues, implement robust testing strategies to maintain code quality, and mentor junior developers in these areas.
 
 
 - Conduct and participate in detailed code reviews, setting standards for code quality and best practices within the team.
 
 
 - Implement and maintain rigorous testing procedures to enhance code reliability.
 
 
 - Collaborate closely with cross-functional teams, including designers, product managers, and backend developers, to deliver cohesive and integrated solutions.
 
 
 - Employ Agile methodologies to meet project deadlines and deliverables effectively.
 
 
 
 
 
 What we are looking for
 
 
 
 
 
 - 3+ years of experience with React.
 
 
 - Proven experience with APIs and Web Services.
 
 
 - Experience with database technologies
 
 
 - Advanced knowledge of algorithms and data structures.
 
 
 - Basic IT infrastructure knowledge.
 
 
 - Experience in designing and implementing software modules for real-world applications.
 
 
 - Proficient in writing and implementing unit tests.
 
 
 - Familiarity with CI/CD pipelines.
 
 
 - Advanced level of English.
 
 
 
 
 
 How we do make your work (and your life) easier:
 
 
 
 
 
 - 100% remote work (from anywhere).
 
 
 - Excellent compensation in USD or your local currency if preferred
 
 
 - Hardware and software setup for you to work from home.
 
 
 - Flexible hours: create your own schedule.
 
 
 - Paid parental leaves, vacations, and national holidays.
 
 
 - Innovative and multicultural work environment: collaborate and learn from the global Top 1% of talent.
 
 
 - Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities.
 
 
 
 
 
 Apply now and become part of a global team where your unique talents can truly thrive!
 
</div>

Semi Senior React Developer - Remote Work

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