senior backend developer

Golpik

Job Title: Senior Backend Developer Location: Karachi (On-site) Job Type: Full-time Timings: 3:00 PM &ndash; 12:00 AM Experience Required: 3+ years (Backend Development) Salary Range: PKR 100,000 &ndash; 200,000 per monthGolpik is expanding our team and looking for a Senior Backend Developer who has a strong technical background and a passion for building scalable, high-performance backend systems.Job DescriptionAs a Senior Backend Developer at Golpik, you will be responsible for designing and implementing efficient server-side logic, integrating APIs, and ensuring high performance and responsiveness to requests from the frontend. You will collaborate closely with frontend developers, mobile teams, and product managers to deliver high-quality solutions.Key Responsibilities<ul><li>Design and implement RESTful and GraphQL APIs with clean, modular, and maintainable architecture.</li><li>Develop and optimize databases (PostgreSQL, MongoDB, or MySQL) with a focus on query performance and indexing strategies.</li><li>Collaborate with frontend teams, mobile developers, and product managers for smooth API integration.</li><li>Implement secure authentication and authorization (JWT, OAuth2, RBAC).</li><li>Write clean, well-documented, and testable code.</li><li>Maintain and improve code quality through peer reviews and version control (Git).</li></ul>Required Skills and Experience<ul><li>3+ years of proven experience as a Backend Developer.</li><li>Strong proficiency in Node.js and TypeScript.</li><li>Hands-on experience with Express.js, Elysia.js, or similar frameworks.</li><li>Strong understanding of API design principles and security best practices.</li><li>Experience with relational and non-relational databases (PostgreSQL, MySQL, MongoDB).</li><li>Good communication and teamwork skills.</li></ul>Job Details<ul><li>Job Type: Full-time</li><li>Working Hours: 3:00 PM &ndash; 12:00 AM</li><li>Location: Karachi (On-site)</li><li>Salary: PKR 100,000 &ndash; 200,000 per month</li></ul>Job Type: Full-timePay: Rs100,000.00 - Rs200,000.00 per monthWork Location: In person

Senior Backend Developer

RMA Metering Private Limited

Job SummaryWe are looking for a skilled Backend Developer to design, develop, and maintain server-side logic, databases, and APIs that power our applications. The ideal candidate should have strong problem-solving skills, experience with modern backend technologies, and the ability to work in a collaborative team environment.Key Responsibilities<ul><li>Design and develop scalable backend systems and APIs</li><li>Write clean, maintainable, and efficient code</li><li>Integrate databases, third-party services, and APIs</li><li>Ensure application performance, security, and reliability</li><li>Debug, test, and fix backend issues</li><li>Collaborate with frontend developers, designers, and product teams</li><li>Participate in code reviews and technical discussions</li><li>Maintain proper documentation of backend architecture and processes</li></ul>Required Skills &amp; Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science or related field (or equivalent experience)</li><li>Strong knowledge of Node.js, Python, Java, or PHP</li><li>Experience with RESTful APIs and micro services architecture</li><li>Familiarity with databases (MySQL, PostgreSQL, MongoDB, etc.)</li><li>Understanding of authentication, security, and data protection</li><li>Experience with Git version control</li><li>Good communication and teamwork skills</li></ul>Preferred Skills<ul><li>Experience with cloud platforms (AWS, Azure, GCP)</li><li>Knowledge of Docker, CI/CD pipelines</li><li>Understanding of system design and scalability</li></ul>Backend Developer &ndash; Standard Operating Procedures (SOP)1. Project Understanding<ul><li>Review project requirements and technical specifications.</li><li>Clarify doubts with the product manager or team lead before development.</li></ul>2. Development Standards<ul><li>Follow coding standards and best practices.</li><li>Write modular, reusable, and well-documented code.</li><li>Use proper naming conventions and folder structures.</li></ul>3. Version Control<ul><li>Use Git for all code changes.</li><li>Create feature branches and submit pull requests.</li><li>Ensure code review approval before merging to main branch.</li></ul>4. API Development<ul><li>Design RESTful APIs with proper request/response structure.</li><li>Implement authentication and authorization.</li><li>Validate inputs and handle errors properly.</li><li>Maintain API documentation.</li></ul>5. Database Management<ul><li>Design optimized database schemas.</li><li>Use migrations for schema changes.</li><li>Ensure data security and backup procedures.</li></ul>6. Testing &amp; Debugging<ul><li>Write unit and integration tests.</li><li>Test APIs using tools like Postman.</li><li>Fix bugs before deployment.</li></ul>7. Deployment Process<ul><li>Follow CI/CD pipeline procedures.</li><li>Verify environment variables and configurations.</li><li>Monitor logs and performance after deployment.</li></ul>8. Security Practices<ul><li>Protect sensitive data and credentials.</li><li>Implement authentication, encryption, and access control.</li><li>Regularly update dependencies.</li></ul>9. Documentation<ul><li>Maintain technical documentation for APIs, database structure, and workflows.</li><li>Update documentation after major changes.</li></ul>10. Communication &amp; Reporting<ul><li>Provide daily or weekly progress updates.</li><li>Immediately report blockers or critical issues.</li><li>Participate in team meetings and sprint planning.</li></ul>Experience Levels<ul><li>Senior Level Backend Developer: 5+ years</li></ul>Education<ul><li>Bachelor&rsquo;s degree in Computer Science, IT, Software Engineering recognized university, or equivalent practical experience.</li></ul>Job Type: Full-timePay: Rs180.00 - Rs220.00 per monthWork Location: In person

PakWheels

<div>As a Senior Backend Developer at PakWheels.com, you&rsquo;ll play a key role in designing and building scalable, high-performance systems that drive our platform&rsquo;s growth. You&rsquo;ll work with an agile, cross-functional team of developers. Your expertise in backend technologies, distributed systems, and cloud platforms will help shape the future of PakWheels.com.
Responsibilities:
<ul><li>Collaborate with several cross functional teams to design and document scalable solutions.</li>
<li>Write secure, maintainable code that powers the platform that provides real time visibility into company&rsquo;s assets.</li>
<li>Build and make scalable design choices for API interfaces to work across internal and external applications and services Build appropriate monitoring, logging, debugging for the health of the system</li>
<li>Actively work on our AWS cloud infrastructure</li>
<li>Mentor and learn from the developers within the engineering organization</li>
</ul>
Qualifications:
<ul><li>B.S. or M.S. in Computer Science or related field</li>
<li>4+ years software development experience</li>
<li>An affinity for creating software that is extensible, performant, and easy to read</li>
<li>Experience building product infrastructure, distributed systems and data models</li>
<li>Experience in Ruby on Rails, Go Lang, Java, or similar language</li>
<li>Solid understanding of relational databases preferably Postgres or MySQL</li>
<li>Experience building for Cloud Infrastructure such as AWS, GCP, Azure or private clouds</li>
</ul>
At PakWheels, we take pride in fostering a dynamic and innovative workplace culture that values collaboration and growth. Since 2003, PakWheels.com has transformed the automobile industry in Pakistan, helping millions of Pakistanis buy, sell, and maintain their vehicles. By joining PakWheels, you'll be part of a mission to revolutionize the automobile landscape. Our environment thrives on creativity, teamwork, and forward-thinking ideas.</div>

VoPay International Inc.

Senior Backend DeveloperLocation: Doha Full-Time In Office RoleAbout VoPay International Inc.VoPay&rsquo;s Fintech-as-a-Service platform enables any business to embed financial services and payment capabilities into their existing applications, products, or services through a single, scalable API. Our integrated technology gives product managers and developers the flexibility and speed to build innovative financial solutions in a rapidly evolving industry.Role OverviewYou'll play a vital role in developing and maintaining the infrastructure that powers our innovative payment platform. Collaborate with a talented, cross-functional agile team to build scalable, performant, and secure solutions that directly impact our clients' success. If you're a problem-solver who thrives in a fast-paced environment and are excited about the future of fintech, we want to hear from you!Key Responsibilities:<ul><li>Design, develop, test, deploy, maintain, and improve robust and scalable software applications.</li><li>Architect and implement high-performance APIs that power our platform.</li><li>Proactively identify and resolve code inefficiencies, proposing and implementing effective solutions.</li><li>Contribute to technology evaluations and rapid prototyping of new solutions.</li><li>Develop maintainable, scalable, and performant systems, adhering to best practices in security, accessibility, and design.</li><li>Troubleshoot and resolve application issues, ensuring a seamless client experience.</li><li>Collaborate closely with team members in an agile environment, fostering a culture of shared learning and innovation.</li><li>Manage server and database infrastructure to ensure optimal performance and reliability.</li><li>See projects through from conception to completion, taking ownership and driving results.</li></ul>Qualifications:<ul><li>Bachelor's degree in Computer Science or equivalent practical experience.</li><li>7+ years of experience in back-end development.</li><li>Strong proficiency in PHP (preferred) or other server-side languages (Python, Ruby, Java, .NET).</li><li>Solid understanding of relational databases (MySQL or similar).</li><li>Experience with AWS services (EC2, S3, RDS, Aurora) is a significant advantage.</li><li>Proven ability to design and develop APIs.</li><li>Excellent verbal and written communication skills.</li><li>Strong problem-solving abilities and attention to detail.</li><li>A passion for innovation and a desire to contribute to a dynamic team.</li></ul>Nice to have:<ul><li>Experience with payment processing or fintech.</li><li>Familiarity with microservices architecture.</li><li>Contributions to open-source projects.</li></ul>Vopay International Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.Job Type: Full-time

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)

VIRTUAL SECURITY LAB CYBER RISK MANAGEMENT SERVICES L.L.C

We are seeking a Senior Backend Developer with deep expertise in Golang and experience building secure, high-performance distributed systems. The role involves hands-on development of scalable backend services with a strong focus on concurrency, secure networking, caching, and real-time event streaming. You will contribute to designing, building, and optimizing systems deployed on AWS and on-premise infrastructure, ensuring they meet enterprise requirements for scalability, reliability, and security.Key Responsibilities<ul><li>Design and implement backend services in Golang, focusing on concurrency, performance, and reliability.</li><li>Develop components that integrate WireGuard protocol for secure communication and advanced networking.</li><li>Build APIs and services for real-time workloads and secure data flows.</li><li>Use Redis for caching, session management, distributed coordination, and Pub/Sub messaging.</li><li>Build streaming and data processing pipelines with Kafka to support real-time events and analytics.</li><li>Deploy and operate services on AWS (EKS, EC2, ElastiCache, MSK) and on-prem Kubernetes clusters.</li><li>Contribute to infrastructure automation using Terraform, Ansible, and CI/CD pipelines.</li><li>Implement monitoring and observability with Prometheus, Grafana, and OpenTelemetry.</li><li>Write clean, maintainable, and testable code with automated unit and integration tests.</li><li>Conduct performance benchmarking, profiling, and optimization for low-latency, high-throughput systems.</li><li>Participate in load testing, failover simulations, and incident response improvements.</li><li>Work closely with Tech Leads, and DevOps engineers to deliver end-to-end solutions.</li><li>Participate in code reviews, design discussions, and contribute to improving engineering standards.</li></ul>Your Skills and ExperienceMust-Have<ul><li>Strong proficiency in Golang (concurrency, networking, memory management, performance tuning).</li><li>Hands-on experience with WireGuard protocol or similar secure networking technologies.</li><li>Proficiency with Redis (cache strategies, Pub/Sub, clustering).</li><li>Solid understanding of Kafka (consumer groups, partitions, streaming pipelines).</li><li>Experience with Kubernetes (EKS, on-prem clusters), containers, and microservices.</li><li>Strong working knowledge of AWS services (VPC, EC2, IAM, CloudWatch, MSK, ElastiCache).</li><li>Experience in building high-concurrency systems with focus on throughput and low latency.</li><li>Familiarity with CI/CD pipelines and infrastructure as code (Terraform, Ansible).</li></ul>Nice-to-Have<ul><li>Knowledge of Linux networking (iptables, nftables, routing).</li><li>Experience with additional messaging systems (RabbitMQ, NATS).</li><li>Familiarity with distributed tracing and debugging in large systems.</li><li>Security-focused development (TLS/mTLS, secrets management, cryptography).</li></ul>Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or equivalent experience.</li><li>7+ years of backend engineering experience, with at least 5+ years in Golang.</li></ul>Job Type: Full-timePay: Up to AED25,000.00 per month

Senior Backend Developer (Golang)

Cell Tech

<div>Who are we?

Cell Tech Inc. is one of the largest service providers for the K-12 sector in the US. Our commitment to innovation drives us to develop cutting-edge solutions that empower our clients. To achieve this, we build and utilize proprietary software focused on automation and user-friendliness. As our company grows, so does our development team! 
About the Role

We are seeking an experienced Backend Developer with strong PHP and Laravel expertise to join our remote engineering team. You will work closely with our Principal Architect to build and maintain robust backend systems that seamlessly support our frontend applications.

The ideal candidate has strong architectural thinking, deep API knowledge, and a passion for building secure, scalable backend services. 
Key Responsibilities
<ul>
<li>Design, develop, and maintain backend systems using PHP and Laravel framework. 
</li>
<li>Build scalable, secure RESTful APIs and microservices. 
</li>
<li>Develop backend functionalities with clean architecture and optimized performance. 
</li>
<li>Coordinate with frontend teams to ensure smooth integration of APIs and services. 
</li>
<li>Implement unit tests and maintain high code quality standards. 
</li>
<li>Troubleshoot performance issues and optimize server-side logic. 
</li>
<li>Manage SQL databases, including writing queries and optimizing data structures. 
</li>
<li>Integrate third-party APIs (Google, Microsoft, etc.). 
</li>
<li>Document backend modules, workflows, and technical specifications. 
</li>
<li>Participate in code reviews and contribute to improving development processes. 
</li>
<li>Work with version control tools (Git) and project management platforms like ClickUp.</li></ul> 


Required Qualifications
<ul>
<li>Bachelor&rsquo;s degree in Computer Science or related field. 
</li>
<li>Minimum 10 years of total industry experience in service-based or SaaS environments. 
</li>
<li>Strong proficiency in PHP and Laravel (required). 
</li>
<li>Solid understanding of SQL databases and query optimization. 
</li>
<li>Experience designing and implementing RESTful APIs. 
</li>
<li>Familiarity with microservices architecture and agile development methodologies. 
</li>
<li>Good understanding of unit testing tools and backend QA practices. 
</li>
<li>Experience working with collaborative tools and CI/CD workflows is a plus. 
</li>
<li>Excellent written and verbal English communication skills. 
</li>
<li>Ability to work independently and manage multiple tasks efficiently. 
</li>
<li>Strong problem-solving skills and eagerness to adopt new technologies.</li></ul> 


If you are a dedicated developer looking to make a significant impact and work with a dynamic team, we'd love to hear from you. Apply now to be a part of Cell Tech Inc.'s exciting journey!</div>

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