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eSpark Consulting Group

<p>We are looking for a skilled Backend Developer with hands-on experience in backend development, specifically with Node.js, Java, modern DevOps practices, and Kafka. The ideal candidate will be responsible for building scalable backend systems, designing robust APIs, and contributing to high-quality architecture and deployment workflows.</p><p>Responsibilities:</p><ul><li>Develop, maintain, and enhance backend services using Node.js and Java, ensuring system reliability, scalability, and high performance.</li><li>Design, develop, test, and deploy RESTful APIs and backend endpoints supporting microservices and distributed architecture.</li><li>Architect and manage Apache Kafka&ndash;based event-driven systems, including topic creation, partition strategies, schema management, producers, consumers, and real-time streaming workflows.</li><li>Implement message serialization formats such as JSON, Avro, or Protobuf for Kafka-based systems.</li><li>Optimize event throughput and latency in Kafka clusters while ensuring proper load balancing and fault tolerance.</li><li>Collaborate in architectural planning, contributing to system design decisions, scalability strategies, and high-availability setups.</li><li>Develop microservices using Node.js and Java Spring Boot, ensuring modularity, clean structure, and efficient service communication.</li><li>Build CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI) for automated builds, testing, deployments, and environment configurations.</li><li>Manage DevOps workflows, including container build automation, environment setup, secrets management, and release processes.</li><li>Write infrastructure automation scripts (IaC tools or shell scripting) for smoother deployments and reproducible environments.</li><li>Work with SQL databases like MySQL and PostgreSQL, focusing on efficient schema design, indexing, and optimized query performance.</li><li>Manage NoSQL databases like MongoDB and Redis, ensuring proper data modeling and high-performance caching.</li><li>Integrate backend services with front-end applications, mobile clients, internal microservices, and third-party APIs.</li><li>Use Docker for containerization of services and apply Kubernetes for orchestration, scaling, deployment strategies, and cluster operations.</li><li>Implement API-level security controls, including authentication, authorization, RBAC, rate limiting, and token-based access.</li><li>Diagnose and resolve production incidents, using logs, metrics, and monitoring tools to perform root-cause analysis and preventive fixes.</li><li>Maintain code quality, documentation, code reviews, and adherence to engineering best practices and design patterns.</li><li>Monitor system performance and infrastructure health using Prometheus, Grafana, ELK Stack, or CloudWatch dashboards.</li><li>Optimize application performance, caching strategies, resource efficiency, and database query tuning for improved throughput.</li><li>Manage Git workflows, including branching strategies, pull/merge request reviews, version control hygiene, and release management</li><li>Build and integrate backend services with Odoo ERP, ensuring smooth data workflows, system configurations, and business logic execution.</li><li>Develop and maintain APIs and real time communication layers required for IoT-based connected systems and cloud operations.</li></ul><p>Requirements:</p><ul><li>Strong expertise in Node.js and Java, with hands-on experience in backend service development (experience with Spring Boot, Quarkus, or similar frameworks is a strong plus).</li><li>Hands-on experience working with Apache Kafka, including event streaming, pub/sub models, consumer groups, topic partitioning, and distributed messaging architectures.</li><li>Solid understanding of DevOps practices, including CI/CD pipelines, Git branching strategies, build automation, environment configuration, and automated deployment workflows.</li><li>Experience working with cloud platforms such as AWS, Azure, or GCP, covering compute services, storage solutions, IAM, networking basics, and cloud-native tooling.</li><li>Proficiency with SQL and NoSQL databases, including MySQL, PostgreSQL, MongoDB, and Redis, with strong skills in schema design, indexing, query optimization, and data modeling.</li><li>Strong knowledge of microservices architecture, API gateways, service discovery, inter-service communication patterns, and distributed systems concepts.</li><li>Advanced experience with Docker and Kubernetes, including containerization, orchestration, scaling strategies, cluster management, and deployment pipelines.</li><li>Strong problem-solving and debugging skills, with the ability to analyze issues across distributed systems and optimize overall application performance.</li><li>Excellent communication, collaboration, and teamwork abilities, with experience working closely with cross-functional teams such as DevOps, QA, Product, and Frontend.</li><li>Familiarity with monitoring and observability tools such as Grafana, Prometheus, ELK Stack, or CloudWatch for performance tracking and issue diagnosis.</li><li>Strong understanding of backend security best practices, including API security, authentication/authorization mechanisms, data protection, and secure coding standards.</li><li>Hands-on experience with Odoo ERP integration, backend communication, modular customization, and working with IoT/connected systems, including API interfacing and device-data handling.</li></ul><p>Nice to Have:</p><ul><li>Experience with additional messaging tools (RabbitMQ, SNS/SQS).</li><li>Knowledge of system design and high-availability architectures.</li><li>Understanding of backend security principles and API protection.</li><li>Experience with monitoring tools such as Prometheus, Grafana, ELK, or CloudWatch.</li></ul><p>Qualification: Bachelor&rsquo;s degree in Computer Science, Software Engineering, or related field.</p><p>Experience: 3&ndash;4 years of professional experience as a Backend Engineer or Software Engineer.</p><p>Benefits:</p><ul><li>Paid Time Off</li><li>Flexible Hour</li></ul><p>Job Type: Full-time</p><p>Work Location: In person</p>

Backend Developer

Jami Partners

<p>The developer will be responsible for designing, implementing, and maintaining interfaces that integrate different internal and external systems. They will participate in requirements analysis, backend component development, unit testing, and continuous integration, ensuring that interfaces meet quality and security standards.</p><p>This profile is aimed at a professional with experience in Java development, familiar with integration architectures and messaging flows, capable of collaborating in multidisciplinary teams.</p><p><b>Technical Requirements (Hard Skills):</b></p><p><b>Languages &amp; Frameworks</b></p><ul><li>Strong proficiency in <b>Java SE/EE (8 or higher)</b></li><li>Experience with <b>Spring Framework</b> and/or <b>Spring Boot</b> for REST services and microservices</li><li>Knowledge of <b>Maven</b> or <b>Gradle</b> as build tools</li></ul><p><b>Integration &amp; APIs</b></p><ul><li>Development of <b>REST and SOAP APIs</b> (exposure and consumption)</li><li>Handling data exchange formats: <b>JSON, XML</b></li><li>Experience with <b>JMS, Kafka</b>, or other messaging platforms for asynchronous integration</li><li>Knowledge of <b>batch services</b> and/or processing queues</li></ul><p><b>Databases</b></p><ul><li>Experience with <b>relational databases</b> (Oracle, MySQL, PostgreSQL) and <b>JPA/Hibernate</b></li><li>Strong <b>SQL knowledge</b> and query optimization</li></ul><p><b>Development Tools &amp; Version Control</b></p><ul><li><b>Git</b> (GitLab, GitHub, or Bitbucket)</li><li>Familiarity with <b>CI/CD</b> (Jenkins, GitLab CI, Bamboo, etc.)</li><li>Experience with <b>JUnit</b> and testing frameworks (Mockito, AssertJ)</li></ul><p><b>Architecture &amp; Security</b></p><ul><li>Understanding of <b>SOA</b> and <b>microservices architectures</b></li><li>Basic knowledge of <b>OAuth2, OpenID Connect, SSL/TLS</b>, and token-based authentication</li></ul><p><b>Additional Competencies</b></p><ul><li>Experience designing <b>system integration interfaces</b> in complex enterprise environments</li><li>Ability to <b>analyze logs and troubleshoot</b> integration failures</li><li>Knowledge of <b>Enterprise Integration Patterns (EIP)</b>: message routing, pub/sub, transformations</li><li><b>Desirable:</b> FX market or financial products experience, including <b>FIX protocol</b> and basic understanding of trading and settlement concepts</li></ul><p><b>Soft Skills:</b></p><ul><li><b>Analytical thinking:</b> ability to understand complex data flows and propose efficient solutions</li><li><b>Teamwork:</b> experience in collaborative environments and Agile methodologies (Scrum/Kanban)</li><li><b>Effective communication:</b> ability to document processes, present findings, and work with business and technology areas</li><li><b>Autonomy:</b> proactivity in researching and resolving integration issues</li></ul><p><b>Education:</b></p><ul><li>Courses or certifications in <b>Java, Spring, Systems Integration, or APIs</b> are desirable</li><li>Experience in <b>financial markets (FX)</b> are a plus</li></ul><p><b>Languages:</b></p><ul><li><b>Technical English</b> (able to read documentation and communicate with international teams).</li></ul><p><b>Years of Experience: </b></p><ul><li>6+ years of experience is required.</li></ul><p>Job Type: Full-time</p><p>Pay: Rs300,000.00 - Rs450,000.00 per month</p><p>Work Location: In person</p>

Senior Java SpringBoot Developer

GE Solucions Pvt Ltd

<p>GE Solucions is seeking a highly skilled Mid-Level .NET Developer with strong backend expertise and the ability to work independently. The ideal candidate should have experience with ERP systems, E-Commerce platforms, and API integrations, along with a solid understanding of system architecture and scalable application design.</p><p><b>Key Responsibilities:</b></p><ul><li>Develop, enhance, and maintain RESTful Web APIs using .NET.</li><li>Build backend modules for ERP systems, eCommerce platforms, and other business applications.</li><li>Integrate internal and third-party APIs to enable seamless data flow between systems.</li><li>Design modular, scalable, and secure application architectures.</li><li>Translate business requirements into technical solutions with minimal supervision.</li><li>Optimize database structures, queries, and stored procedures (SQL Server).</li><li>Participate in code reviews and enforce coding standards and best practices.</li><li>Troubleshoot production issues and provide long-term, stable fixes.</li><li>Collaborate with cross-functional teams (Frontend, QA, DevOps) as required.</li></ul><p><b>Required Skills &amp; Qualifications:</b></p><ul><li>Strong proficiency in C# and .NET Core / .NET 6+.</li><li>Hands-on experience building Web APIs, microservices, and backend modules.</li><li>Experience working with ERP systems, eCommerce platforms, and API integrations.</li><li>Solid understanding of software architecture, design patterns, and application layering.</li><li>Strong knowledge of SQL Server, query optimization, and relational database design.</li><li>Experience with Entity Framework Core, LINQ, and dependency injection.</li><li>Familiarity with version control (Git), CI/CD practices, and cloud deployments (Azure/AWS) is a plus.</li><li>Strong problem-solving, analytical thinking, and debugging skills.</li><li>Ability to work independently and deliver high-quality results on time.</li></ul><p><b>Work Days &amp; Hours:</b><br/>Monday &ndash; Friday (12PM-9PM)</p><p><b>What We Offer:</b></p><ul><li>Market-competitive salary package</li><li>Growth and learning opportunities</li><li>Health insurance &amp; performance recognition</li><li>Friendly and professional work culture</li></ul><p><b>Location:</b><br/>PECHS, Block 6, Karachi</p><p><b>Interested?</b><br/>Send your CV to <b>rafia.safdar@gesolucions.com</b></p><p>Job Type: Full-time</p><p>Work Location: In person</p>

.NET Developer (Backend / Web API)

Teresol Pvt. Ltd

<p>Teresol Pvt. Ltd. is a software development company based in Kar&#257;chi. This is a full-time on-site role for a Java Software Engineer at Teresol Pvt. Ltd. located in Kar&#257;chi. As a Java Software Engineer, you will be responsible for the day-to-day tasks related to software development, microservices design and implementation, programming, and using the Spring Framework. You will be working with Java to develop and maintain software solutions for our clients' needs.</p><p><b>Experience:</b></p><ul><li>6 months to 1 year of strong experience in Java, Spring, Hibernate.</li><li>Extensive hand on experience in Java Enterprise Edition</li><li>Extensive Knowledge of Spring Integration and Spring Microservices framework</li><li>Experience with Docker</li><li>Experience in Continuous Integration/Continues Deployments tools</li><li>Experience in development using AOP (Aspect Oriented Programming) and TDD (Test Driven Development)</li><li>Experience in monitoring frameworks like ELK Stack (Elasticsearch, Logstash, Kibana)</li><li>Knowledge of open-source tools like Apache Kafka.</li></ul><p><b>Qualifications</b></p><ul><li>Bachelor's degree in Computer Science or related field</li></ul><p>Location - Karachi</p><p>Job Type: Full-time</p><p>Education:</p><ul><li>Bachelor's (Preferred)</li></ul><p>Experience:</p><ul><li>Java development : 1 year (Preferred)</li></ul><p>Location:</p><ul><li>Karachi Gpo (Required)</li></ul><p>Work Location: In person</p>

Software Engineer (Java)

Contour Software

<div><div>About Contour</div><div></div><div><div>
Contour Software</div> has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years.</div><div><br>
As a subsidiary of Constellation Software Inc., we are proud to be part of a global enterprise software conglomerate that has grown to become one of the top 10 software companies in the world, with employees and customers in 100+ countries. With a broad-based and ever-growing portfolio of market-leading, vertical-market enterprise solutions covering more than 100 industry domains in predominantly mature markets, CSI's recipe creates the perfect environment for professionals to build fulfilling, long-term careers.</div><div><br>
What started as an R&amp;D &amp; Accounting back-office, has progressed into a full-service Global Centre serving all functions and departments, at the divisional as well as operating group/corporate level. Today Contour employees, located in Karachi, Lahore &amp; Islamabad, are serving CSI divisions located in time zones spanning the globe, from Sydney to Vancouver. With the global growth of Constellation as the wind in our sails, we are only just getting started!</div><div></div><div>
About Division:</div><div>
Versatile Software Engineer with extensive experience building distributed systems and cloud-native applications. Specialized in designing scalable backend services, modern frontend solutions, and real-time data pipelines. Proven track record of taking projects from architecture through deployment and collaborating with cross-functional teams to deliver high-impact products.</div><div></div><div>
Key Responsibilities</div><ul><li><div>
Design, develop, and maintain backend microservices in Python and Node.js/TypeScript using AWS Lambda, Cloud Run, Cloud Functions, Dataflow, S3, QuickSight, and Athena.</div></li><li><div>
Implement REST APIs to enable high-performance, secure integrations with internal and external systems.</div></li><li><div>
Build and maintain frontend features using modern component libraries such as React.</div></li><li><div>
Design and optimize data pipelines leveraging Kafka/MSK, Airflow, and cloud data lakes for real-time and batch processing.</div></li><li><div>
Collaborate with QA, Product, and cross-functional teams to troubleshoot, resolve, and prevent production issues.</div></li><li><div>
Write unit and integration tests, enforce coding standards, and refactor code to follow DRY and scalable architecture principles.</div></li><li><div>
Mentor junior developers on engineering best practices, cloud computing, and microservice design.</div></li><li><div>
Peer review commits and pull requests, ensuring code quality and adherence to architecture standards.</div></li><li><div>
Document systems, workflows, and technical designs in Confluence for organizational knowledge sharing.</div></li><li><div>
Contribute to scaling initiatives by building ledger-driven financial workflows, transaction monitoring systems, and automated reporting pipelines.</div></li><li><div>
Experience working in Agile development environments, including Scrum or Kanban, collaborating closely with cross-functional teams to deliver iterative, high[1]quality software.</div></li></ul><div></div><div>
Required Skills and Qualifications:</div><ul><li><div>
Python, JavaScript/TypeScript, Java, React</div></li><li><div>
Cloud &amp; Infrastructure: AWS (Lambda, S3, EKS, QuickSight), GCP (Cloud Functions, Cloud Run)</div></li><li><div>
Databases: PostgreSQL, MongoDB, AWS Athena</div></li><li><div>
Data &amp; Messaging: Kafka/MSK, Airflow, SQS</div></li><li><div>
DevOps &amp; Tools: Docker, Git, Confluence, Jira, CloudWatch Other: API Design, Distributed Systems, Microservices, Event-Driven Architecture</div></li></ul><div></div><div>
Nice-to-Have Qualifications</div><ul><li><div>
Experience with financial systems, payment processing, or ledger-based architectures.</div></li><li><div>
Familiarity with infrastructure-as-code (Terraform, CloudFormation).</div></li><li><div>
Exposure to container orchestration (Kubernetes, ECS).</div></li><li><div>
Hands-on experience with CI/CD pipelines (GitHub Actions, CodePipeline).</div></li><li><div>
Knowledge of data visualization and reporting tools (QuickSight, Tableau, or Looker).</div></li><li><div>
Understanding of observability tools (Prometheus, Grafana, Datadog).</div></li><li><div>
Interest in mentorship, technical leadership, and architecture design reviews.</div></li><li><div>
Familiarity with machine learning and/or AI systems.</div></li><li><div>
Passion for continuous improvement, clean architecture, and developer experience.</div></li></ul><div>
Exciting Benefits we offer:</div><ul><li><div>
Market-leading Salary</div></li><li><div>
Medical Coverage &ndash; Self &amp; Dependents</div></li><li><div>
Parents Medical Coverage</div></li><li><div>
Provident Fund</div></li><li><div>
Employee Performance-based bonuses</div></li><li><div>
Home Internet Subsidy</div></li><li><div>
Conveyance Allowance</div></li><li><div>
Profit Sharing Plan [Tenured Employees Only]</div></li><li><div>
Life Benefit</div></li><li><div>
Child Care Facility</div></li><li><div>
Company Provided Lunch/Dinner</div></li><li><div>
Professional Development Budget</div></li><li><div>
Recreational area for in-house games</div></li><li><div>
Sporadic On-shore training opportunities</div></li><li><div>
Friendly work environment</div></li><li><div>
Leave Encashment</div></li></ul><div></div><div><i>
Disclaimer:</i><i> At Contour, we attribute our success to the unique contributions of our diverse staff. We&rsquo;re committed to fostering a culture of respect that thrives on the varied perspectives and experiences of all individuals we recruit, employ, promote, and compensate. Since day one, we&rsquo;ve adhered to a policy that champions a work environment honoring the worth and dignity of each person while being free from all forms of employment discrimination.</i></div><div></div><div><i>
In our continuous effort to promote inclusivity, we extend our commitment to individuals with special needs by providing reasonable accommodations. We actively encourage qualified individuals with special needs to apply for the various openings within our company. Should you require assistance in completing the application process or have any inquiries regarding special facilities, please do not hesitate to contact our HR team. Your unique talents and abilities are welcomed and valued here.</i></div></div><div></div>

Senior Full Stack Developer

Hbox Digital

<p>Job description:</p><p><b>Urgent Hiring</b>: Full Stack Developer<br/><b>Location</b>: Bahria Town Tower, Main Tariq Rd, Block 2 PECHS, Karachi, Pakistan<br/><b>Type:</b> Full-time<br/><b>Salary: </b>Competitive Start Date: ASAP<br/><b>Education: </b>BSCS, Software Engineering, or a related field.</p><p>We are looking for a highly skilled Full Stack Developer with strong expertise in Node.js, React.js, Next.js, and database technologies (MongoDB, MySQL, PostgreSQL). The ideal candidate will have hands-on experience in building scalable web applications, integrating APIs, and working across the full software development lifecycle.Responsibilities:Develop, test, and deploy scalable web applications using Node.js, React.js, and Next.js.Design and manage relational and non-relational databases (MongoDB, MySQL, PostgreSQL).Collaborate with UI/UX designers to implement user-friendly and responsive interfaces.Write clean, maintainable, and efficient code following best practices.Integrate third-party APIs and create RESTful/GraphQL APIs as needed.Troubleshoot, debug, and optimize application performance.Participate in code reviews, sprint planning, and team discussions.Ensure application security, scalability, and performance standards are met.Requirements:2+ years of professional experience as a Full Stack Developer.Proficiency in JavaScript/TypeScript, Node.js, React.js, and Next.js.Strong knowledge of databases: MongoDB, MySQL, and PostgreSQL.Experience with Git/GitHub, CI/CD pipelines, and cloud platforms (AWS/DigitalOcean/Azure) is a plus.Solid understanding of RESTful APIs, GraphQL, and modern software architecture.Ability to work independently as well as in a collaborative team environment.Excellent problem-solving, analytical, and communication skills.Preferred Skills (Nice to Have)Knowledge of containerization (Docker, Kubernetes).Experience with microservices architecture.Familiarity with Agile methodologies (Scrum/Kanban).</p><p>Job Type: Full-time</p><p>Work Location: In person</p><p>Job Type: Full-time</p><p>Work Location: In person</p>

Full Stack Developer

Launch Box

<p><b>Senior Backend Developer &ndash; Join Our Growing Team!</b></p><p><b>Location:</b> Emarah Suites, Main Shahra-e-Faisal, Karachi<br/><b>Timings:</b> 12:00 PM &ndash; 9:00 PM<br/><b>Employment Type:</b> Full-time | On-site</p><p><b>About Us:</b><br/>We are a dynamic and fast-growing tech company dedicated to delivering high-quality, scalable, and innovative solutions for our global clients. We value creativity, problem-solving, and a passion for technology.</p><p><b>Position Overview:</b><br/>We&rsquo;re looking for a <b>Senior Backend Developer</b> with strong expertise in <b>Node.js</b> and proficiency in multiple backend technologies. You will architect, develop, and maintain scalable APIs, databases, and backend systems, ensuring optimal performance and security.</p><p><b>Key Responsibilities:</b><br/><b>Design, develop, and maintain robust backend systems and APIs, primarily using </b>Node.js<b>.</b><br/>Work with multiple backend languages and frameworks such as <b>Python, PHP, Java, Go, or .NET</b> when required.<br/><b>Collaborate with frontend developers, mobile engineers, and DevOps teams to deliver end-to-end solutions.</b><br/>Optimize applications for maximum speed, scalability, and security.<br/><b>Manage and maintain databases (SQL &amp; NoSQL) including </b>PostgreSQL, MySQL, MongoDB<b>.</b><br/>Implement best practices for code quality, testing, and deployment.<br/><b>Troubleshoot and debug applications, ensuring smooth performance.</b><br/>Mentor junior developers and lead code reviews.</p><p><b>Requirements:</b><br/>3+ years <b>of backend development experience.</b><br/>Strong expertise in <b>Node.js</b> (Express.js, NestJS, or similar frameworks).<br/><b>Experience with RESTful APIs, GraphQL, and microservices architecture.</b><br/>Familiarity with cloud platforms (AWS, Azure, or GCP).<br/><b>Strong understanding of </b>SQL &amp; NoSQL databases<b>.</b><br/>Proficiency in other backend languages such as <b>Python, PHP, Java, Go, or .NET</b>.<br/><b>Knowledge of authentication, authorization, and security best practices (OAuth, JWT, etc.).</b><br/>Experience with Git and CI/CD pipelines.<br/><b>Strong problem-solving skills and attention to detail.</b></p><p><b>Nice to Have:</b><br/><b>Experience with Docker, Kubernetes, and container orchestration.</b><br/>Knowledge of serverless architectures.<br/><b>Exposure to real-time systems (WebSockets, Socket.io).</b></p><p>Job Type: Full-time</p><p>Work Location: In person</p>

Senior Backend Developer (Node.js)

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