senior software engineer i - backend Jobs in Karachi

senior software engineer i - backend

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senior python developer

Viabletree

What You'll do? Design, build, and maintain scalable backend services using Python (3.8+), FastAPI, and Django REST Framework (DRF).&#9679; Develop and optimize database schemas, queries, and migrations using SQLAlchemy and PostgreSQL.&#9679; Architect and implement integrations with cloud platforms&mdash;preferably Google Cloud Platform (GCP)&mdash;to ensure reliability and scalability.&#9679; Build event-driven systems and background jobs with Celery, Redis, and message queues. &#9679; Write clean, testable, and maintainable code with PyTest unit and integration test coverage.&#9679; Collaborate cross-functionally with Frontend, DevOps, Product, and Data Science teams to deliver new features end-to-end.&#9679; Contribute to system observability and performance tuning through monitoring, profiling, and logging best practices.&#9679; Participate in code reviews, architecture discussions, and sprint planning&mdash;helping drive technical excellence across the stack.What We&rsquo;re Looking For&#9679; 5+ years of commercial backend software development experience.&#9679; 3+ years of hands-on experience with Python in production environments.&#9679; Strong proficiency with FastAPI and/or Django REST Framework (DRF).&#9679; Deep understanding of SQLAlchemy, PostgreSQL, and relational database design.&#9679; Experience building and deploying services on GCP (or AWS/Azure equivalents).&#9679; Understanding of distributed systems and event-based architectures.&#9679; Skilled in writing automated tests with PyTest and applying CI/CD best practices.&#9679; Solid experience using Docker to build and run containerized applications.Nice to Have&#9679; Experience with ClickHouse (column-oriented analytics database).&#9679; Familiarity with Celery for task orchestration and background jobs.&#9679; Experience with Redis for caching or message brokering.&#9679; Exposure to Kubernetes (K8s) for container orchestration.&#9679; Knowledge of Poetry for dependency management.&#9679; Interest or experience in prompt engineering for AI developer tools like GitHub CopilotWhat We Offer:<ul><li>Competitive salary with performance-based incentives.</li><li>Company-paid daily lunch.</li><li>Medical coverage.</li><li>Supportive and collaborative work environment.</li><li>Continuous learning and professional growth opportunities.</li></ul>Job Type: Full-timeWork Location: In person

Senior Python Developer

Enterprise64

<div>Overview 
Enterprise64 is a U.S.-based technology company that creates digital solutions for startups to Fortune 500 companies in the United States, Europe, and the United Arab Emirates. We are growing rapidly across all our global offices and have career opportunities for tech professionals who are looking to work in a fast-growing company, work in a fun environment, be challenged, grow, and fast-track their careers.
Position Overview 
We&rsquo;re seeking a Senior Python Backend Engineer with strong expertise in designing and maintaining scalable server-side APIs. The ideal candidate will have hands-on experience with modern Python frameworks, relational databases, and best practices in API development, testing, and security.
Key Responsibilities<ul><li>
Design, develop, and maintain high-performance RESTful APIs using FastAPI, Flask, or Django REST Framework.</li><li>
Collaborate with front-end developers and product teams to define API requirements and integrations.</li><li>
Write clean, efficient, and reusable Python code following industry best practices.</li><li>
Optimize backend performance, ensure scalability, and implement caching strategies.</li><li>
Manage and maintain relational databases such as PostgreSQL or MySQL.</li><li>
Ensure API security through authentication, authorization, and data protection best practices.</li><li>
Develop and maintain automated tests to ensure code quality and system reliability.</li><li>
Troubleshoot production issues and implement effective solutions.</li><li>
Stay updated on emerging backend technologies and contribute to continuous improvement.</li></ul>
Requirements<ul><li>
Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.</li><li>
3&ndash;5 years of professional experience in backend development using Python.</li><li>
Strong experience with frameworks like FastAPI, Flask, or Django REST Framework.</li><li>
Solid understanding of REST API design principles and architecture.</li><li>
Hands-on experience with relational databases (PostgreSQL or MySQL).</li><li>
Familiarity with API testing, performance optimization, and versioning best practices.</li><li>
Knowledge of authentication mechanisms (OAuth2, JWT, etc.).</li><li>
Experience with Git-based workflows and CI/CD integration.</li><li>
Strong problem-solving and debugging skills.</li><li>
Excellent collaboration and communication skills.</li></ul>
Benefits<ul><li>
Talent upskilling program.</li><li>
Provident fund.</li><li>
Health insurance.</li><li>
Eligible for US H-1 Visa.</li><li>
Project-based bonus.</li><li>
Leave encashment.</li><li>
EOBI</li><li>
Maternity leaves/ Paternal WFH</li><li>
Religious holidays</li><li>
Work from home facility.</li><li>
Referral bonus.</li><li>
Paid time off.</li><li>
Transportation service.</li><li>
Loan and advance salary.</li></ul></div>

<div>Overview 
Enterprise64 is a U.S.-based technology company that creates digital solutions for startups to Fortune 500 companies in the United States, Europe, and the United Arab Emirates. We are growing rapidly across all our global offices and have career opportunities for tech professionals who are looking to work in a fast-growing company, work in a fun environment, be challenged, grow, and fast-track their careers.
Job Overview 
We are hiring a Senior Python Backend Developer to join our dynamic team (Contract Role). The ideal candidate will have strong expertise in backend development, API design, and database optimization, ensuring high-performance, scalable, and secure applications. You will collaborate with cross-functional teams to build efficient, maintainable, and reliable backend solutions that drive our innovative products.
Key Responsibilities<ul><li>
Design, develop, and maintain ETL pipelines for large-scale data processing and integration.</li><li>
Work with AWS Glue, PySpark, and Apache Spark to process structured and unstructured data efficiently.</li><li>
Build and optimize data ingestion workflows from multiple sources into data lakes and warehouses.</li><li>
Ensure data quality, consistency, and reliability through validation and monitoring.</li><li>
Collaborate with cross-functional teams, including data scientists, analysts, and backend engineers, to deliver scalable data solutions.</li><li>
Implement and manage data transformation and schema evolution using AWS services (Glue, S3, Lambda, Redshift, etc.).</li><li>
Optimize Spark jobs for performance and cost efficiency.</li><li>
Develop and maintain metadata management and data cataloging in AWS Glue.</li><li>
Ensure adherence to data security, compliance, and governance best practices.</li><li>
Use Python for automation, data manipulation, and integration tasks.</li><li>
Implement CI/CD pipelines for data workflows and maintain infrastructure-as-code (IaC) using tools like Terraform or CloudFormation (a plus).</li></ul> 
Preferred Qualifications<ul><li>
Strong expertise in Python and PySpark for large-scale data processing.</li><li>
Hands-on experience with AWS Glue, AWS Lambda, S3, and Redshift.</li><li>
Solid understanding of ETL frameworks, data modeling, and data warehousing concepts.</li><li>
Experience with Apache Spark and distributed computing principles.</li><li>
Familiarity with workflow orchestration tools (e.g., Airflow, Step Functions).</li><li>
Knowledge of SQL and NoSQL databases for data querying and optimization.</li><li>
Strong problem-solving and debugging skills for data-intensive applications.</li><li>
Experience working in agile environments and collaborating with cross-functional teams.</li></ul></div>

Senior Python Developer - Contractor

Quentis Pvt Ltd

We&rsquo;re Hiring: Backend Python DeveloperLocation: Shahrah-e-Faisal, Karachi Shift Timings: 12:00 PM &ndash; 09:00 PM (Monday to Friday) Employment Type:Full-TimeKey Responsibilities:Develop and maintain web applications using Python frameworks like Django or Flask.Collaborate with front-end teams to integrate server-side logic with user interfaces.Design, implement, and manage SQL/NoSQL databases to support web applications.Build and integrate RESTful APIs for efficient data exchange between services.Test and debug applications to ensure optimal functionality and performance.Write clean, modular, and well-documented code to support maintainability and scalability.Optimize web applications for speed, performance, and scalability.Work closely with cross-functional teams to deliver features on time and meet project goals.Stay updated on Python and web development trends to continuously enhance technical skills.Requirements:Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.Proven experience as a Backend Python Developer.Strong understanding of RESTful API design, database systems (SQL/NoSQL), and ORM tools.Hands-on experience with Git, Docker, or cloud-based deployments is a plus.Problem-solving mindset with strong analytical and debugging skills.Job Type: Full-timePay: Rs1.00 - Rs170.00 per monthApplication Question(s):<ul><li>How many years of experience do you have working with Python in backend development?</li><li>Which Python framework(s) have you worked with professionally?</li><li>How familiar are you with RESTful API development and integration?</li><li>Do you have hands-on experience with databases such as MySQL, PostgreSQL, or MongoDB?</li><li>Are you comfortable working on-site at our office on Shahrah-e-Faisal, Karachi during the 12:00 PM &ndash; 09:00 PM shift (Monday to Friday)?</li><li>What is your current monthly salary (PKR)?</li><li>What is your expected monthly salary (PKR)?</li><li>When can you join if selected?</li></ul>Work Location: In person

Backend Python Developer

Key Responsibilities:&middot; Assist in developing and maintaining Python-based applications and scripts.&middot; Write clean, efficient, and well-documented code under the guidance of senior developers.&middot; Support in debugging, testing, and performance optimization.&middot; Participate in code reviews and team discussions.&middot; Collaborate with the team to implement backend logic and integrate APIs.&middot; Stay updated on emerging technologies and best practices in Python development.Requirements:&middot; Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.&middot; Basic understanding of Python programming language and OOP concepts.&middot; Familiarity with frameworks such as Django or Flask is a plus.&middot; Knowledge of REST APIs, SQL, or data handling is an advantage.&middot; Strong analytical and problem-solving skills.&middot; Eagerness to learn new technologies and contribute to real-world projects.&middot; Good communication and teamwork skills.Timings: 10 am to 7pmLocation: Gulshan e iqbal, karachi.Job Type: Full-timeWork Location: In person

Python Intern

Teamficient

Position Title: Senior Web DeveloperLocation: RemoteEmployment Type: Full-TimeExperience Level: 5+ YearsCompany: Teamficient - www.teamficient.comSalary Range: $800 - $1000 (Negotiable for highly experienced candidates)Work Schedule:<ul><li>Time Range: Between 7 AM &ndash; 7 PM CST</li><li>Working Hours: 9 hours per day (8 working hours + 1-hour break)</li><li>Days Off: TBD (2 days per week)</li></ul>Job Overview: Join our team as a Senior Web Developer, leading security initiatives while developing cutting-edge web applications. This remote position combines cybersecurity expertise with full-stack development skills.Key Responsibilities:<ul><li>Conduct penetration testing, vulnerability assessments, and incident response.</li><li>Perform digital forensics investigations and blue team operations.</li><li>Develop secure web applications using Next.js, Django, and Python.</li><li>Lead client-facing meetings and technical presentations.</li><li>Mentor development teams and coordinate security projects.</li></ul>Required Skills:<ul><li>Cybersecurity: Penetration testing, blue team operations, digital forensics, incident response, security frameworks (NIST, CIS Controls)</li><li>Web Development: Next.js, React, Django, Python, JavaScript/TypeScript, cloud platforms (Azure), API development</li><li>Leadership: Team management, client communication, project coordination, technical mentoring</li></ul>Qualifications:<ul><li>Proficiency in modern web technologies (Next.js, Django, Python).</li><li>Excellent communication and leadership skills.</li><li>Pentesting, forensics, and security operations.</li><li>Security certifications preferred (CISSP, CEH, OSCP).</li></ul>System Requirements:<ul><li>Desktop/Laptop</li><li>Intel Core i5</li><li>8GB RAM for multitasking requirements</li><li>Workstation free from any Noise and Distractions</li><li>Backup Internet Connection</li><li>USB Headset with Noise Cancelling</li><li>Backup for Power Outage: Generator/UPS or Alternative Location</li></ul>This is a long-term opportunity with an amazing team that will support you in your work-from-home career!Job Type: Full-timeWork Location: Remote

(REMOTE) Senior Web Developer

9D Technologies & Imagination AI

<div>9D Technologies and ImaginationAI are at the forefront of mobile applications and game publishing, delivering innovative and engaging experiences to users worldwide. Our mission is to create extraordinary digital experiences that captivate and entertain, and we are committed to pushing the boundaries of creativity and technology utilizing AI. 
 
We are seeking a highly ambitious and tech-savvy Social Media Manager to own the social presence for our portfolio of innovative, AI-first products. You will be a key driver of our growth, using a cutting-edge AI tool stack to create content that not only captivates but converts. Your mission is to build a direct line from social media activity to our bottom line. 
Responsibilities:<ul>
<li>
Design, implement, and maintain backend services and APIs using Python(Flask) or Golang.
</li><li>Build scalable, reliable, and high-performance systems for large-scale data processing and transactions.
</li><li>Apply design patterns and best practices to ensure maintainability, testability, and reusability of code.
</li><li>Work with relational and non-relational database systems (e.g., PostgreSQL, MySQL, MongoDB, Redis) for data modeling, optimization, and query performance tuning.
</li><li>Collaborate with frontend engineers, DevOps, and product managers to deliver end-to-end solutions.
</li><li>Ensure system security, performance, and availability through monitoring, logging, and troubleshooting.
</li>Participate in code reviews, mentor team members, and contribute to continuous improvement of development practices. 
<li>
</li>
</ul>Requirements<ul>
<li>
Bachelor&rsquo;s degree in Computer Science, Engineering, or related field (or equivalent experience).
</li><li>6+ years of professional backend development experience.
</li><li>Strong proficiency in Python or Golang (knowledge of both is a plus).
</li><li>Solid understanding of database systems (SQL and NoSQL).
</li><li>Strong grasp of software engineering principles, design patterns, and system architecture.
</li><li>Experience with RESTful APIs, gRPC, or GraphQL.
</li><li>Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).
</li><li>Knowledge of CI/CD pipelines, testing frameworks, and monitoring tools.
</li><li>Excellent problem-solving, communication, and teamwork skills.</li>
</ul>
Why you'll love it here 
 
You won't just be scheduling posts. You will be at the forefront of defining how AI products are marketed. You will have the autonomy to experiment, the budget to test your ideas, and a direct impact on the growth of a leading-edge product portfolio. 
 
Our Commitment to Diversity &amp; Inclusion 
 
We are an equal opportunity employer and value diversity at our organization. We believe that an inclusive workplace drives innovation, creativity, and success. We welcome applicants from all backgrounds, experiences, and perspectives.
Benefits<ul>
<li>
Competitive pay that matches your skills and experience</li>
<li>Family Health Insurance</li>
<li>Paid Time Off to recharge and relax</li>
<li>Work-Life Balance and a supportive environment</li>
<li>Delicious meals provided to keep you fueled</li>
<li>Stay active with convenient, on-site fitness facilities</li></ul></div>

Senior Backend Engineer - (Python/Go)

Explore 598+ Senior python developer in Karachi this November. Find roles across top companies and apply now to boost your career.

598 senior python developer jobs IN Karachi

Senior Python Developer

Senior Python Developer

Senior Python Developer - Contractor

Backend Python Developer

Python Intern

(REMOTE) Senior Web Developer

Senior Backend Engineer - (Python/Go)