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STRABL

STRABL is looking for a Senior Java Developer to join our high-performing fintech engineering team. This role is ideal for someone who has built secure, scalable systems at a fast-moving fintech startup and is ready to help shape the future of financial infrastructure.You'll work on a modern tech stack, lead critical backend development, and play a central role in our product evolution. If you're excited by complex systems, ownership, and building things that matter &mdash; we'd love to talk.Key Responsibilities:<ul><li>Design, develop, and maintain backend services and APIs using Java (preferably Java 11 or newer) and the Spring ecosystem (Spring Boot, Spring Data, Spring Security).</li><li>Architect and manage distributed microservices using tools like Spring Cloud, Mongo, Mysql and Redis, ensuring scalability, resilience, and high performance.</li><li>Have knowledge and build the multi tenant systems</li><li>Collaborate closely with product, design, and QA teams to deliver features from concept to production in short release cycles.</li><li>Write clean, maintainable, and testable code with strong emphasis on domain-driven design, SOLID principles, and test automation (JUnit, Testcontainers, Mockito).</li><li>Integrate with third-party fintech services such as payment gateways, fraud detection systems, open banking APIs, and KYC providers.</li><li>Implement secure coding practices and ensure compliance with industry standards like PCI DSS, GDPR, and ISO 27001.</li><li>Deploy and monitor services using Docker, GitHub Actions, Prometheus, Grafana, and centralized logging tools (ELK, Loki, or Datadog).</li><li>Participate in technical design reviews and drive architectural decisions to improve codebase quality, system performance, and developer experience.</li><li>Mentor junior and mid-level engineers through code reviews, design sessions, and knowledge sharing.</li><li>Leverage cloud infrastructure (preferably AWS) to build and manage services using EC2, RDS, S3, Secrets Manager, and event-driven architecture (SQS, SNS, Lambda).</li><li>Stay up-to-date with fintech trends and challenges &mdash; prior experience at a fintech startup is a must.</li></ul>What We&rsquo;re Looking For:<ul><li>5+ years of professional experience building production-grade Java applications</li><li>Proven experience working in a fintech startup or high-growth financial product team</li><li>Strong understanding of multi-tenant, backend architecture, microservices, event-driven, and distributed systems</li><li>Deep knowledge of Java, Spring Boot, SQL/NoSQL (Mysql, MongoDB), REST APIs</li><li>Hands-on experience with secure API design, data encryption, and compliance protocols</li><li>Familiarity with DevOps practices, CI/CD pipelines, and container orchestration (Docker, K8s)</li><li>Comfortable with fast-paced environments, ambiguity, and high ownership roles</li><li>Excellent communication skills and a collaborative mindset and should be proficient in speaking/writing in English</li></ul>Nice to Have:<ul><li>Experience with event-driven systems, Kafka, or RabbitMQ</li><li>Familiarity with fintech flows like transaction reconciliation, payment orchestration, or virtual wallets</li><li>Exposure to OpenAPI, Swagger, or Postman collections</li><li>Experience with observability tools like Grafana or OpenTelemetry</li></ul>Why Join STRABL?<ul><li>Competitive salary with performance-based bonuses</li><li>Attractive equity options to share in the company&rsquo;s success</li><li>Flexible remote-first work culture</li><li>Flexible working hours to support a healthy work-life balance</li><li>Opportunity to work on cutting-edge fintech solutions that impact millions of users</li><li>A collaborative, inclusive team where your contributions make a difference</li><li>Continuous learning and professional development opportunities</li></ul>How to Apply:If this sounds like you, we&rsquo;d love to hear from you, but please take the time to read the job description carefully before applying. We&rsquo;re looking for people who are genuinely aligned with the role and excited by what we&rsquo;re building in the MENA region for the world.Apply here: https://forms.fillout.com/t/aWnSPDr9y2usJob Type: Full-timeExperience:<ul><li>Springboot: 5 years (Required)</li></ul>Language:<ul><li>English (Required)</li></ul>

Senior Java Developer

Avanza Solutions

We're Hiring: Java Developer (Karachi, Lahore &amp; Islamabad)Experience: 5 to 8 Years Locations: KHI, LHR &amp; ISB Position Type: Full-TimeAre you a skilled Java Developer passionate about building robust applications? Join our dynamic team and work on exciting projects using modern frameworks and technologies!Key Responsibilities:<ul><li>Develop and maintain scalable applications using Java and Spring Boot.</li><li>Collaborate with cross-functional teams to define, design, and ship new features.</li><li>Optimize application performance and troubleshoot production issues.</li><li>Participate in code reviews and follow best practices.</li></ul>Required Skills &amp; Qualifications:<ul><li>3&ndash;8 years of hands-on experience in Java development.</li><li>Strong knowledge of Spring Boot framework.</li><li>Good understanding of RESTful APIs and microservices architecture.</li><li>Excellent problem-solving and debugging skills.</li><li>Bachelor's degree in Computer Science or a related field.</li></ul>Apply now abdul.basit@avanzasolutions.comJob Type: Full-timePay: Up to Rs600,000.00 per monthWork Location: In person

Confiz

<div>We at Confiz are hiring for a Java Developer with 5+ years of experience. The ideal candidate will be a Java expert with a primary focus on building secure, scalable applications. They will also be responsible for maintaining existing systems, mentoring junior developers, and collaborating with cross-functional teams.
Responsibilities
<ul><li>Design, develop, and maintain secure, scalable applications using Java (11+) and Spring Boot.</li>
<li>Build robust RESTful and SOAP APIs as well as microservices for seamless integration.</li>
<li>Ensure best practices in design, architecture, and coding standards.</li>
<li>Work with JSON and XML for data interchange and handle serialization/deserialization.</li>
<li>Implement and manage encryption/decryption mechanisms (AES, RSA, TLS) for secure storage and communication.</li>
<li>Oversee production deployments, ensuring zero downtime and rollback mechanisms.</li>
<li>Manage CI/CD pipelines using Jenkins, GitLab CI, or GitHub Actions with automated testing and configuration management.</li>
<li>Develop database schemas, write optimized queries, and manage integrations with relational databases (MySQL, PostgreSQL, Oracle).</li>
<li>Familiarity with NoSQL databases such as MongoDB, Redis, or Cassandra is a plus.</li>
<li>Strong understanding of HTTP/HTTPS protocols, methods, and secure communication standards.</li>
<li>Implement unit, integration, and functional testing using frameworks like JUnit and Mockito.</li>
<li>Write and maintain thorough test cases to ensure quality and functionality.</li>
<li>Work closely with Product, QA, and DevOps teams to achieve project goals.</li>
<li>Mentor junior developers on coding, documentation, and testing best practices.</li>
</ul>
Required Skills
<ul><li>A strong candidate will have a bachelor&rsquo;s degree in computer science (or related discipline) with a minimum of 5 years of hands-on experience in Java.</li>
<li>Experience: 5+ years of hands-on experience in Java (preferably Java 11 or later).</li>
<li>Education: Bachelor&rsquo;s degree in computer science or related field.</li>
<li>Core Skills: Java, Spring Boot, Spring Security, Spring Data, Spring Cloud, REST/SOAP APIs, JSON/XML, Microservices, HTTP/HTTPS protocols, Encryption/Decryption (AES, RSA, TLS), JUnit, Mockito, Git.</li>
<li>Database: MySQL, PostgreSQL, Oracle; familiarity with NoSQL databases (MongoDB, Redis, Cassandra).</li>
<li>CI/CD Tools: Jenkins, GitLab CI, GitHub Actions.</li>
<li>Cloud: AWS experience is highly desirable.</li>
<li>Tools: Git, JIRA, Confluence, or similar collaboration tools.</li>
<li>Containerization with Docker and orchestration with Kubernetes.</li>
<li>Exposure to Agile/Scrum methodologies.</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, 27001:2013 &amp; 20000-1:2018 certified. We have a vibrant culture of learning via collaboration and making the workplace fun. People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.</div>

Senior Java/Spring Boot Developer

Careem

<div><div>Careem is building the Everything App for the greater Middle East, making it easier than ever to move around, order food and groceries, manage payments, and more. Careem is led by a powerful purpose to simplify and improve the lives of people and build an awesome organisation that inspires. Since 2012, Careem has created earnings for over 2.5 million Captains, simplified the lives of over 70 million customers, and built a platform for the region&rsquo;s best talent to thrive and for entrepreneurs to scale their businesses. Careem operates in over 70 cities across 10 countries, from Morocco to Pakistan.</div><div>

What you'll do
<ul>
<li>Work closely with other engineers on the team to build highly scalable and robust backend applications and services.</li>
<li>Write high quality, performant and reliable code while working on defined tasks/bugs independently.</li>
<li>Work independently to understand functional specifications and deliver complete features.</li>
<li>Participate in the on-call rotation and be willing to jump in and help resolve any incidents within the defined SLA.</li>
<li>Participate in team agile and engineering practices and contribute to their continuous evolution.</li>
</ul>
What you'll need
<ul>
<li>4+ years of professional software development experience.</li>
<li>Bachelor's Degree in Computer Science or other related technical field.</li>
<li>Working experience with either Java OR Golang.</li>
<li>Working knowledge of Computer Science fundamentals including: object-oriented design, data structures and algorithms.</li>
<li>Experience operating online systems reliably including deploying changes to production in live systems.</li>
</ul>
Preferred skills &amp; qualifications
<ul>
<li>Master's Degree in Computer Science or other related technical field.</li>
<li>Experience with Cloud platforms such as Azure, Google Cloud Platform and AWS.</li>
<li>Experience working with container technology including Docker and Kubernetes.</li>
<li>Experience working with relational and non-relational database systems.</li>
<li>Experience applying professional software engineering best practices, including coding standards, code reviews, source control management, build processes, testing, and operations.</li>
</ul>
What we&rsquo;ll provide you

We offer colleagues the opportunity to drive impact in the region while they learn and grow. As a full time Careem colleague, you will be able to:
<ul>
<li>Work and learn from great minds by joining a community of inspiring colleagues.</li>
<li>Put your passion to work in a purposeful organisation dedicated to creating impact in a region with a lot of untapped potential.</li>
<li>Explore new opportunities to learn and grow every day.</li>
<li>Work 4 days a week in office &amp; 1 day from home, and remotely from any country in the world for 30 days a year with unlimited vacation days per year. (If you are in an individual contributor role in tech, you will have 2 office days a week and 3 to work from home.)</li>
<li>Access to healthcare benefits and fitness reimbursements for health activities including gym, health club, and training classes.</li></ul></div></div>

Senior Software Engineer I

<div><div>Careem is building the Everything App for the greater Middle East, making it easier than ever to move around, order food and groceries, manage payments, and more. Careem is led by a powerful purpose to simplify and improve the lives of people and build an awesome organisation that inspires. Since 2012, Careem has created earnings for over 2.5 million Captains, simplified the lives of over 70 million customers, and built a platform for the region&rsquo;s best talent to thrive and for entrepreneurs to scale their businesses. Careem operates in over 70 cities across 10 countries, from Morocco to Pakistan.</div><div>
About the Team

The Careem Data Platform team&rsquo;s mission is to provide a platform to abstract big data complexities and enable fast, reliable and secure access to data. As a member of this team, you will be at the forefront of fulfilling this mission. You will be working with the top talent of the region, leveraging modern big data tools and techniques to solve the region&rsquo;s day to day problems, on top of our own in-house data platform, serving users in real-time.

This role will be part of the Data processing and computation platform team. We are heavily invested in open source technologies like Apache Spark, Apache Kafka, Apache Trino etc. You would also have an opportunity to contribute and collaborate with the open source community.

What you'll do
<ul>
<li>Bringing an innovative and creative mindset to data engineering challenges to develop a modern data platform with efficient reusable components</li>
<li>Design, architect, solutioning, implement and test rapid prototypes that demonstrate value of the data and present them to diverse audiences</li>
<li>Your focus will be on making code more efficient to run, optimizing resources across the cluster, and speeding up the compute workloads we face</li>
<li>Continuously improve our engineering processes, tests, and systems that allow us to scale the code base and productivity of the team</li>
<li>Collaborate with teams globally and operate in a fast paced environment</li>
<li>Responsible for creating reusable and scalable data pipelines</li>
</ul>
What you&rsquo;ll need
<ul>
<li>5+ years of hands-on experience in software development</li>
<li>Bachelor's degree in Computer Science or a related technical field</li>
<li>Strong expertise in Scala, Java, Python or similar programming languages</li>
<li>Proven track record of building distributed systems or working on comparable large-scale projects</li>
<li>Deep understanding of cloud-native Big Data technologies</li>
<li>Solid foundation in software engineering principles and design best practices</li>
<li>Passion for developing high-quality, maintainable, and performant software within a collaborative, high-performing global team</li>
<li>Experience with cloud control planes (AWS, GCP, etc.) or database internals, including query optimization</li>
<li>Contributions to open-source projects will be preferred</li>
<li>Experience with Docker and Kubernetes is a plus</li></ul></div></div>

Adal Fintech (Pvt) Ltd.

<div>&quot;AdalFi is Going Global&quot;
Position Overview
At AdalFi, we&rsquo;re building technology that transforms the future of digital lending, and quality is at the heart of everything we do. We are looking for a Senior QA Engineers to join our growing team in Karachi &amp; Islamabad. This is an exciting opportunity for someone who is passionate about ensuring software excellence, driving automation, and raising the bar for quality across complex, high-impact systems. As a Senior QA Engineer, you&rsquo;ll collaborate closely with developers, product managers, and business stakeholders to design, execute, and automate test strategies/ cases that guarantee reliability and scalability for our cutting-edge fintech solutions.
What You&rsquo;ll Do:<ul><li>Design, develop, and maintain robust and scalable automation test frameworks and test scripts using industry-standard tools and technologies (preferably Cucumber, Selenium, Java, Jmeter)</li><li>Identify and prioritize test automation opportunities based on risk, business impact, and feasibility.</li><li>Execute automated test suites, analyze test results, and report defects effectively.</li><li>Collaborate with development teams to understand software design and identify potential quality issues early in the development process.</li><li>Contribute to the continuous improvement of our testing processes and methodologies.</li><li>Integrate automated tests into the CI/CD pipeline for continuous testing.</li><li>Develop and maintain test data and test environments for automation purposes.</li><li>Participate in code reviews to ensure testability and adherence to quality standards.</li><li>Troubleshoot and resolve issues related to test automation frameworks and scripts.</li><li>Stay up-to-date with the latest trends and technologies in test automation.</li><li>Document test plans, test cases, and test results clearly and concisely.</li></ul>
What We&rsquo;re Looking For:<ul><li>Bachelor's degree in Computer Science, Engineering, or a related field.</li><li>3-5 years of proven experience in software quality assurance with a strong focus on test automation.</li><li>Solid understanding of software development lifecycle (SDLC) and testing methodologies (Agile, Waterfall).</li><li>Hands-on experience with at least one popular test automation framework (e.g., Selenium WebDriver, Cypress, Playwright).</li><li>Proficiency in at least one programming language commonly used for test automation (e.g., Java, Python, JavaScript).</li><li>Experience with test management tools (e.g., Jira, TestRail, Zephyr).</li><li>Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI, CircleCI).</li><li>Strong analytical and problem-solving skills.</li></ul></div>

Senior QA Engineer

MeezoTech

Position Information:Job Title: Senior Full Stack EngineerDepartment: TechnologyReporting to: Head of TechnologyRole Overview:The Senior Full Stack Engineer is responsible for architecting, developing, and maintaining both server-side logic and user-facing components of complex web applications. This role requires deep expertise in designing scalable, high-performing, and secure systems across the stack, as well as mentoring team members and driving best practices. The Senior Full Stack Engineer collaborates closely with cross-functional teams, influences technical direction, and ensures the delivery of robust, maintainable, and innovative solutions that align with business objectives.Key Responsibilities:&#9679; Architect, design, and develop scalable and maintainable frontend and backend systems for web applications.&#9679; Lead the design and implementation of RESTful APIs and backend services, ensuring best practices in security, performance, and scalability.&#9679; Drive the adoption of modern frontend frameworks (such as React, Angular, Next.js, or Vue.js) and ensure the delivery of accessible, responsive, and high-quality user experiences.&#9679; Optimize application performance at both the code and infrastructure levels, proactively identifying and resolving bottlenecks.&#9679; Champion code quality by implementing and enforcing robust testing strategies (unit, integration, and end-to-end), TDD, and code review processes.&#9679; Mentor and support junior engineers, fostering a culture of continuous learning, technical excellence, and knowledge sharing.&#9679; Collaborate with product managers, designers, and other stakeholders to translate business requirements into technical solutions.&#9679; Ensure seamless data flow and integration between frontend and backend systems, including third-party services.&#9679; Implement and maintain security best practices, data protection, and compliance measures across the stack.&#9679; Troubleshoot and resolve complex technical issues, providing guidance and support to the engineering team.&#9679; Contribute to technical documentation, architectural decisions, and process improvements.Requirements &amp; Qualifications:&#9679; Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science, Engineering, or a related field.&#9679; Extensive experience as a Full Stack Engineer, with a proven track record of delivering complex, high-impact projects.&#9679; Advanced proficiency in programming languages such as Python, TypeScript, Go, or Java, as well as frontend technologies (HTML, CSS, JavaScript).&#9679; Deep expertise in backend frameworks (e.g., Django, Node.js, Fastify, Flask) and modern frontend frameworks (e.g., React, Angular, Next.js, Vue.js).&#9679; Strong experience with relational and NoSQL databases (e.g., PostgreSQL, MongoDB), including schema design and query optimization.&#9679; In-depth knowledge of RESTful API design, microservices architecture, and cloud platforms (AWS, Google Cloud).&#9679; Demonstrated experience optimizing web applications for performance, scalability, and reliability.&#9679; Strong understanding of browser rendering, performance tuning, and security best practices.&#9679; Proficiency with version control systems (Git) and CI/CD pipelines.&#9679; Experience with automated testing frameworks and tools, and a commitment to test-driven development.&#9679; Excellent debugging, troubleshooting, and analytical skills.&#9679; Experience mentoring engineers and leading technical initiatives is highly desirable.Competencies:&#9679; Time Management: Skilled at managing multiple priorities and delivering results in a fast-paced environment.&#9679; Communication: Exceptional ability to communicate complex technical concepts to both technical and non-technical stakeholders.&#9679; Problem Solving: Expert at diagnosing and resolving complex issues across the stack, with a focus on performance and scalability.&#9679; Collaboration: Proven track record of working effectively with cross-functional teams to achieve business goals.&#9679; Adaptability: Comfortable navigating ambiguity and adapting to evolving requirements and technologies.&#9679; Attention to Detail: Commitment to delivering high-quality, maintainable, and user-centric solutions.&#9679; Continuous Learning: Proactive in staying up-to-date with new technologies and industry best practices.Working Hours &amp; Schedule:<ul><li>Monday to Thursday: 11:00 AM &ndash; 8:00 PM (On-site)</li><li>Friday &amp; Saturday: Off</li><li>Sunday: Work from Home</li></ul>Job Type: Full-timePay: Rs130,000.00 - Rs200,000.00 per monthWork Location: In person

Senior Full stack developer

Explore 548+ Senior java engineer in Karachi this October. Find roles across top companies and apply now to boost your career.

548 senior java engineer jobs IN Karachi

Senior Java Developer

Senior Java Developer

Senior Java/Spring Boot Developer

Senior Software Engineer I

Senior Software Engineer I

Senior QA Engineer

Senior Full stack developer