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Fission Tech

We are looking for a passionate Backend Java Developer to join our growing engineering team. The ideal candidate should have hands-on experience with Java and Spring Boot, and a strong understanding of backend architecture, APIs, and database management.Key Responsibilities:<ul><li>Develop, test, and maintain backend services and RESTful APIs using Java (Spring Boot).</li><li>Collaborate with frontend developers and other teams to integrate user-facing elements.</li><li>Optimize applications for performance, scalability, and reliability.</li><li>Write clean, efficient, and well-documented code.</li><li>Participate in code reviews and contribute to improving coding standards.</li><li>Troubleshoot, debug, and resolve technical issues in production or staging environments.</li></ul>Requirements:<ul><li>6 months to 1 year of experience in backend development using Java and Spring Boot.</li><li>Basic understanding of REST APIs, microservices, and MVC architecture.</li><li>Experience with MySQL / PostgreSQL or any relational database.</li><li>Familiarity with Git or other version control systems.</li><li>Good understanding of OOP concepts and software development principles.</li><li>Strong problem-solving and communication skills.</li></ul>Nice to Have:<ul><li>Exposure to cloud platforms (AWS, Azure).</li><li>Familiarity with Docker or CI/CD pipelines.</li><li>Basic knowledge of frontend integration (React, Angular) is a plus.</li></ul>How to Apply:Interested candidates can share their updated resume at arhama.naseem@fissiontech.co with the subject line &ldquo;Backend Java Developer Application &rdquo;.Job Type: Full-timeWork Location: In person

Back-end Java Developer

Confiz

<div>We&rsquo;re looking for a Java Engineer with a DevOps and observability mindset to help enhance and modernize our monitoring ecosystem as we transition from Splunk to New Relic. You will play a key role in building high-performing Java applications with strong instrumentation, visibility, and automation integrated into our delivery pipelines.
This role requires hands-on experience in Java development, event-driven systems, and DevOps automation, with a focus on enabling deep system observability and performance insight.
Responsibilities
<ul><li>Design, develop, and maintain scalable backend services using Java and Spring Boot.</li>
<li>Build and manage APIs and event-driven services using Kafka, RabbitMQ, or similar technologies.</li>
<li>Implement application instrumentation for logs, metrics, and traces using New Relic and Splunk.</li>
<li>Lead or support the migration of application telemetry, dashboards, and alerts from Splunk to New Relic.</li>
<li>Collaborate with DevOps teams to embed monitoring and alerting into CI/CD pipelines.</li>
<li>Automate observability configurations and deployments using Terraform, Python, or Bash.</li>
<li>Develop dashboards, alerts, and service-level indicators to proactively monitor application health.</li>
<li>Integrate monitoring and alerting with incident management tools such as PagerDuty, Opsgenie, or Slack.</li>
<li>Deploy and manage Java workloads on AWS, Azure, or GCP.</li>
<li>Ensure consistent logging and monitoring practices across all microservices.</li>
<li>Participate in Agile or Kanban sprints, contributing to planning, reviews, and retrospectives.</li>
</ul>
Requirements
<ul><li>5&ndash;8/7-10 years of hands-on experience in Java (Java 8+) and Spring Boot development.</li>
<li>Proven experience with Splunk (search queries, dashboards, alerts) and New Relic (APM, Infrastructure, NRQL).</li>
<li>Strong understanding of observability pillars &mdash; logs, metrics, and traces.</li>
<li>Experience with event-driven systems and messaging technologies like Kafka or RabbitMQ.</li>
<li>Practical experience integrating observability into CI/CD pipelines (GitHub Actions, Jenkins, or GitLab CI).</li>
<li>Proficiency in scripting (Python, Bash, YAML) for automation and deployment workflows.</li>
<li>Working knowledge of Terraform for infrastructure provisioning and configuration management.</li>
<li>Experience deploying and monitoring applications on AWS, Azure, or GCP.</li>
<li>Familiarity with Docker and Kubernetes for containerized and microservices environments.</li>
<li>Experience with Git workflows (branching, merging, conflict resolution).</li>
<li>Strong troubleshooting, debugging, and performance optimization skills.</li>
<li>Exposure to incident management and SLO/SLI-based observability practices.</li>
<li>(Nice to have) Prior involvement in Splunk to New Relic migration initiatives.</li>
<li>(Nice to have) Knowledge of other observability tools such as Grafana, Prometheus, Datadog, or ELK stack.</li>
</ul>
We have an amazing team of 700+ individuals working on highly innovative enterprise projects &amp; products. Our customer base includes Fortune 100 retail and CPG companies, leading store chains, fast-growth fintech, and multiple Silicon Valley startups.
What makes Confiz stand out is our focus on processes and culture. Confiz is ISO 9001:2015 (QMS), ISO 27001:2022 (ISMS), ISO 20000-1:2018 (ITSM), ISO 14001:2015 (EMS), ISO 45001:2018 (OHSMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.
People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.
To know more about Confiz Limited, visit: https://www.linkedin.com/company/confiz-pakistan/</div>

Java Developer- Splunk/New Relic

INNOVATIVE PVT LTD

Education: B.CS / BSCS / MCSExperience: Fresh to 3 years of experienceKey Responsibilities<ul><li>ASP.Net development using framework(MVC)</li><li>Java Web development using frame work(Struts 2)</li><li>Windows Forms Application development</li><li>C#</li><li>Java</li><li>Reports Development</li><li>Crystal Report</li><li>Jasper Reports</li><li>Database management</li><li>Store Procedures</li><li>Scalar Valued Functions</li><li>Views</li><li>Indexing</li><li>Joins</li><li>API Development</li><li>Rest</li><li>Soap</li><li>Script Writing</li><li>Java Script</li><li>AJAX</li><li>Jquery</li><li>CSS,HTML</li></ul>Specific Tools, Technologies or Equipment Skills:<ul><li>MVC ASP.net, Java, Angular 4, React</li><li>HTML, DB Oracle and Sql Server , JASPER reports , Eclipse , SQL Developer , Visual Studio.</li></ul><ul><li>HTML, DB Oracle and Sql Server , JASPER reports , Eclipse , SQL Developer , Visual Studio.</li></ul>Job Type: Full-timePay: Rs85,000.00 - Rs120,000.00 per monthWork Location: In person

Software Engineer

INNOVATIVE PRIVATE LIMITED

Experience:Fresh to 1 year of experienceEducation: BCS / BSCS / MCSSpecific Tools, Technologies, or Equipment Skills:<ul><li>MVC ASP.NET, Java, Angular 4, React</li><li>HTML, DB Oracle and SQL Server, JASPER Reports, Eclipse, SQL Developer, Visual Studio</li></ul>Primary Responsibilities:<ul><li>JavaScript and jQuery development</li><li>Crystal Reports and Jasper Reports</li><li>API and RESTful service development</li><li>SOAP-based integrations</li><li>Database management and optimization</li><li>C# and Java Reports Development</li><li>Understanding of Linux Platform</li><li>Windows Forms Application Development</li><li>Java Web Development using frameworks such as Struts 2</li><li>Store Procedures, Scalar-Valued Functions, Views, Indexing, and Joins</li><li>AJAX, CSS, and HTML scripting</li><li>Script writing and debugging</li></ul>Job Type: Full-timeWork Location: In person

Avanza Solutions

Position: Android Developer Location: Karachi Industry: Fintech / Mobile Application DevelopmentRole Overview: We are looking for a skilled Android Developer with hands-on experience in Java and Kotlin, and a strong understanding of UI/UX design principles. The ideal candidate will be responsible for building high-quality mobile applications, ensuring performance, responsiveness, and excellent user experience.Key Responsibilities:<ul><li>Design, build, and maintain advanced Android applications using Java and Kotlin.</li><li>Collaborate with UI/UX designers to implement intuitive and engaging user interfaces.</li><li>Integrate RESTful APIs and third-party services.</li><li>Work closely with cross-functional teams to define, design, and ship new features.</li><li>Troubleshoot, debug, and optimize app performance.</li><li>Ensure code quality through proper testing and documentation.</li><li>Stay up to date with the latest Android development trends and best practices.</li></ul>Requirements:<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or related field.</li><li>2&ndash;3 years of hands-on experience in Android development.</li><li>Strong knowledge of Java, Kotlin, and Android SDK.</li><li>Experience with UI/UX design implementation, Material Design, and responsive layouts.</li><li>Understanding of MVVM/MVC architecture, Firebase, and RESTful APIs.</li><li>Familiarity with Git, Play Store publishing, and third-party libraries.</li><li>Strong analytical, problem-solving, and communication skills.</li></ul>Nice to Have:<ul><li>Experience in fintech or banking applications.</li><li>Knowledge of Jetpack Compose</li></ul>Interested candidates may also apply at sana.naz@avanzasolutions.comJob Type: Full-timePay: Rs120,000.00 - Rs150,000.00 per monthWork Location: In person

Andriod Developer

<div>We are hiring a Principal Full Stack Architect (Java + React) with 7+ years of experience to design, develop, and maintain scalable software solutions for Supply Chain and warehouse management. The ideal candidate will have strong expertise in Java, Spring Boot, and React, along with cloud technologies, and the flexibility to work from 2 PM to 11 PM PKT to collaborate with global teams.
Responsibilities:
<ul><li>Develop full-stack software systems to support Supply Chain services and warehouse management.
</li><li>Design, architect, and implement frontend (React) and backend (Java/Spring Boot) solutions for complex business problems.
</li><li>Ensure the delivery of high-quality, scalable, and maintainable code with proper testing.
</li><li>Document system designs and technical specifications.
</li><li>Provide on-call support for production systems owned by the team.
</li></ul>Requirements:
<ul><li>5+ years of professional experience in full-stack development (Java + React).
</li><li>Strong proficiency in Backend: Java, Spring Boot, Microservices, REST APIs and Frontend: React.js, JavaScript/TypeScript, modern UI frameworks
</li><li>Experience with distributed systems and large-scale applications.
</li><li>Expertise in incident management, debugging, and root cause analysis.
</li><li>Hands-on experience with messaging systems (Kafka) and databases (SQL/NoSQL).
</li><li>Proficiency in cloud platforms (AWS, Kubernetes); GCP is a plus.
</li><li>Familiarity with CI/CD pipelines (GitLab, Terraform), logging (New Relic, Splunk), and observability tools.
</li><li>Ability to design and articulate scalable system architectures.
</li><li>Flexibility to work from 2 PM to 11 PM PKT for team collaboration.
</li><li>Prior experience in Supply Chain is a plus.
</li></ul>We have an amazing team of 700+ individuals working on highly innovative enterprise projects &amp; products. Our customer base includes Fortune 100 retail and CPG companies, leading store chains, fast-growth fintech, and multiple Silicon Valley startups.
What makes Confiz stand out is our focus on processes and culture. Confiz is ISO 9001:2015 (QMS), ISO 27001:2022 (ISMS), ISO 20000-1:2018 (ITSM), ISO 14001:2015 (EMS), ISO 45001:2018 (OHSMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.
People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.
To know more about Confiz Limited, visit: https://www.linkedin.com/company/confiz-pakistan/</div>

Principal Full-Stack Architect (Java + React)

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> 
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> 
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> 
The Division</div><div>
At <div>CSIPay</div>, a Jonas company, we are dedicated to empowering Constellation&rsquo;s six operating groups in the USA and Canada with seamless payment processing solutions. Our goal is to give you greater control over your revenue, enhance your market potential, and improve customer satisfaction, fostering success for all within the Constellation family.</div><div></div><div>
Constellation Payment Processing is a modern Payment Facilitator (PayFac) empowering SaaS businesses to grow revenue through seamless, embedded payments. As part of Constellation Software Inc. (TSE: CSU) &mdash; a global Canadian-based software leader at a $96B market cap and the 7th largest software company in the world &mdash; we combine the agility of a specialized payments company with the strength and stability of an established global powerhouse.</div><div> 
About the Role</div><div>
We are seeking a Senior Software Engineer with strong experience in Java development and modern cloud-native architectures. This role will focus on designing, building, and maintaining scalable APIs and backend services, collaborating closely with Product, QA, and Project Management to deliver reliable, high-quality software solutions.</div><div> 
Key Responsibilities</div><ul><li>
Design, develop, and maintain backend systems and RESTful APIs using Java (Maven-based projects).</li><li>
Architect and implement scalable, maintainable, and secure application designs.</li><li>
Write comprehensive unit and integration tests and participate in peer code reviews.</li><li>
Containerize and deploy applications using Docker and related CI/CD pipelines.</li><li>
Collaborate with product teams to refine requirements and ensure technical feasibility.</li><li>
Partner with QA engineers to establish effective testing strategies and automation.</li><li>
Work with project management to plan, estimate, and deliver features on time.</li><li>
Utilize and optimize AWS services namely S3, Lambda, and EC2 for distributed systems and data handling.</li><li>
Contribute to internal technical discussions, documentation, and design reviews.</li><li>
Mentor junior developers and advocate for engineering best practices and code quality.</li><li>
Familiar with Agile methodologies and processes.</li></ul><div> 
Required Qualifications</div><ul><li>
8+ years of professional experience in software engineering.</li><li>
Strong proficiency in Java with hands-on experience in Maven build systems.</li><li>
Solid understanding of API design principles, microservice architecture, and software lifecycle management.</li><li>
Experience with Docker for local development and production deployments.</li><li>
Proficiency in Java testing frameworks.</li><li>
Demonstrated experience with AWS cloud infrastructure (S3, Lambda, EC2, IAM, etc.).</li><li>
Excellent problem-solving, communication, and cross-team collaboration skills.</li><li>
Familiar with Agile methodologies and processes.</li></ul><div> 
Nice-to-Have Skills</div><ul><li>
Familiarity with TypeScript or Python for tooling, scripting, or microservices.</li><li>
Experience with serverless architectures and event-driven design patterns.</li><li>
Exposure to CI/CD pipelines (GitHub Actions, Jenkins, or similar).</li><li>
Understanding of distributed systems, observability, and monitoring tools</li></ul><div></div><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>
Disclaimer: 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.</div><div></div><div>
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.</div></div><div></div>

Senior Software Developer (Java)

Explore 231+ Java developer in Karachi this November. Find roles across top companies and apply now to boost your career.

231 java developer jobs IN Karachi

Back-end Java Developer

Java Developer- Splunk/New Relic

Software Engineer

Software Engineer

Andriod Developer

Principal Full-Stack Architect (Java + React)

Senior Software Developer (Java)