backend developer

The Risk Advisors

1. Role and tech stackWe are seeking a Senior Python Backend Developer to design and build a configurable management and GRC (Governance, Risk and Compliance) platform aimed at banks, financial institutions, and large enterprises. The platform is a microservices system: an API Gateway for routing and authentication, an Identity and Access Management service, and a Core service that hosts a set of generic, customer-configurable object types and dimensions, so a customer can map the platform to their own domain (risks, incidents, controls, policies, assets, and so on) without any custom development. The expected stack is Django and FastAPI (both), PostgreSQL 17 as the database, SQLAlchemy 2 async or the Django ORM for data access, Pydantic v2 for DTOs and validation, and JWT (RS256) for tokens. A thin reverse-proxy or gateway layer is required for cross-service routing and identity propagation.2. Authentication, security and gateway-trust architectureDeep authentication experience is required: RS256 JWT issuance and validation, short-lived access tokens with single-use refresh-token rotation, server-side session revocation, secure cookie handling (HttpOnly, Secure, SameSite=Strict), and gateway-trust architectures where the Gateway validates a JWT once at the edge and forwards trusted identity headers to downstream services. You must understand defense-in-depth: header-injection prevention, CR/LF sanitization on every forwarded value, optimistic concurrency via record-version checks, ORM-parameterised SQL only, fixed-window rate limiting on sensitive endpoints, constant-time secret comparisons, and structured audit logging that never leaks stack traces. Familiarity with OAuth2 / OIDC and the OWASP Top 10 is expected. The platform must be defensible to a bank auditor.3. Clean code, robust patterns and PostgreSQL expertiseClean code is non-negotiable. We expect SOLID principles, dependency-injection patterns (FastAPI Depends or Django app composition), strict separation of concerns (controller / service / repository), comprehensive type hints under Python 3.12+, Pydantic v2 for request and response DTOs, async / await throughout the request path, and tight error-handling middleware that maps exceptions to safe HTTP responses. Strong PostgreSQL expertise is required: SCD Type 2 (Slowly Changing Dimension) live + history tables, composite primary keys, sequence-generated identifiers, multi-statement transactions, advisory locks, savepoints, and full audit-trail patterns with per-change reason records. The codebase must be defensive: input validation at every boundary, explicit invariant checks (fail loudly when schema state looks corrupt rather than papering over it), and zero tolerance for SQL string concatenation or untrusted-input interpolation.4. Domain awareness, collaboration and qualityGRC domain awareness is a strong plus. Bank auditors will scrutinise the audit trail, version history, optimistic-concurrency behaviour, and compliance flows you build, so every data-changing operation must be traceable end-to-end. You will collaborate closely with a senior architect; every design decision is recorded in markdown notes, every API contract is locked before code is written, and every PR description states what changed and why. A test-driven mindset is expected: unit tests for pure logic, integration tests against a real PostgreSQL instance, and self-audits in a structured red-team style with severity-ranked findings (critical / high / medium / low). Strong written communication, ability to push back on under-specified requirements, and willingness to revisit your own code with a security-auditor mindset round out the profile.Pay: Rs200,000.00 - Rs300,000.00 per monthWork Location: In person

Senior Python Backend Developer

Consecutive Bytes

Consecutive Bytes is looking for a motivated and skilled Python Backend &amp; AI Developer to join our growing team. The ideal candidate should have hands-on experience in backend development using Python, FastAPI, and/or Django, along with experience in building APIs, web scraping, data processing workflows, and automation solutions.About the RoleThis position is ideal for a backend developer with a strong passion for AI, automation, and data-driven systems. We are looking beyond prompt engineering and the use of existing AI tools. Our goal is to build and operate our own AI capabilities using open-source LLMs and self-hosted infrastructure.The ideal candidate will be excited about working with open-source models, AI agents, RAG architectures, vector databases, model fine-tuning, and deploying AI solutions on private servers. You will play a key role in helping us build in-house AI systems tailored to our business needs rather than relying solely on third-party AI platforms.Key Responsibilities<ul><li>Design, develop, and maintain scalable backend applications using Python, FastAPI, and/or Django.</li><li>Build, integrate, and maintain RESTful APIs for web and mobile applications.</li><li>Develop and maintain web scrapers to collect, process, and manage data from various online sources.</li><li>Handle data extraction, transformation, cleaning, and storage processes efficiently.</li><li>Work with databases such as PostgreSQL, MySQL, MongoDB, or similar technologies.</li><li>Collaborate with frontend developers to integrate backend services with React.js and Next.js applications.</li><li>Create automation scripts and backend tools to improve internal workflows.</li><li>Assist in building in-house AI and LLM-based solutions, including internal knowledge systems, data processing pipelines, and AI-powered automation.</li><li>Research, evaluate, and implement open-source AI technologies, embeddings, vector databases, RAG systems, and AI agent workflows.</li><li>Deploy and maintain self-hosted AI infrastructure and services.</li><li>Optimize backend systems for performance, reliability, scalability, and security.</li><li>Debug, troubleshoot, and resolve backend and data-related issues.</li><li>Write clean, maintainable, and well-documented code following industry best practices.</li><li>Participate in code reviews and contribute to improving development standards and processes.</li></ul>Required Skills &amp; Qualifications<ul><li>BS in Computer Science, Software Engineering, IT, Data Science, or a related field.</li><li>1&ndash;2 years of professional experience in Python development.</li><li>Hands-on experience with FastAPI and/or Django.</li><li>Good understanding of backend development and RESTful API architecture.</li><li>Experience with web scraping and data extraction.</li><li>Familiarity with scraping tools/frameworks such as BeautifulSoup, Scrapy, Selenium, or Playwright.</li><li>Basic understanding of databases such as PostgreSQL, MySQL, or MongoDB.</li><li>Familiarity with Git or other version control systems.</li><li>Understanding of frontend-backend integration.</li><li>Basic knowledge of deployment processes and cloud platforms.</li><li>Knowledge of Docker and containerized applications.</li><li>Strong problem-solving skills and willingness to learn new technologies.</li><li>Interest in AI, LLMs, automation, data processing, and building internal AI-powered systems.</li></ul>How to ApplyInterested candidates are requested to share their updated CV/Resume via WhatsApp for quick communication.WhatsApp HR: +92 342 4833424Please mention the position title &ldquo;Python Backend &amp; AI Developer&rdquo; while applying.Work Location: In person

Python Backend & AI Developer

EcoEnergy Systems

We are seeking a skilled and experienced .NET Developer with 4&ndash;5 years of hands-on experience in ASP.NET MVC to join our development team. The ideal candidate will be responsible for designing, developing, and maintaining web applications, collaborating with cross-functional teams, and writing clean, scalable, and well-tested code.Key Responsibilities<ul><li>Design, develop, and maintain web applications using ASP.NET MVC, .NET Framework, and/or .NET Core.</li><li>Write clean, reusable, efficient, and maintainable code following industry best practices and coding standards.</li><li>Build, consume, and integrate RESTful APIs and third-party services.</li><li>Develop, optimize, and maintain SQL Server databases, queries, stored procedures, and schemas.</li><li>Participate in the complete software development lifecycle, including requirements analysis, design, development, testing, deployment, and support.</li><li>Debug, troubleshoot, and resolve application issues, defects, and performance bottlenecks.</li><li>Collaborate closely with front-end developers, QA engineers, and product teams to deliver high-quality solutions.</li><li>Participate in code reviews and contribute to the continuous improvement of development processes and coding practices.</li></ul>Required Skills &amp; Qualifications<ul><li>4&ndash;5 years of professional experience in .NET application development.</li><li>Strong hands-on experience with ASP.NET MVC.</li><li>Proficiency in C#, .NET Framework, and/or .NET Core.</li><li>Solid understanding of Object-Oriented Programming (OOP) principles and design patterns.</li><li>Experience with Entity Framework and/or ADO.NET for data access.</li><li>Strong knowledge of SQL Server, including query writing, stored procedures, and performance optimization.</li><li>Working knowledge of front-end technologies, including HTML5, CSS3, JavaScript, jQuery, and Bootstrap.</li><li>Experience with Git or other version control systems.</li><li>Strong analytical, problem-solving, debugging, and troubleshooting skills.</li><li>Good communication and teamwork abilities.</li></ul>Preferred Qualifications<ul><li>Experience with .NET Core / ASP.NET Core.</li><li>Exposure to Web APIs, Microservices Architecture, and cloud platforms such as Azure or AWS.</li><li>Familiarity with modern front-end frameworks such as Angular or React.</li><li>Knowledge of CI/CD pipelines and Agile/Scrum development methodologies.</li><li>Experience writing and maintaining unit tests.</li></ul>Pay: Rs250,000.00 - Rs350,000.00 per monthApplication Question(s):<ul><li>How many years of professional experience do you have in ASP.NET MVC development?</li><li>Have you independently developed and deployed web applications using ASP.NET MVC?</li><li>How many years of experience do you have working with C# and .NET Framework/.NET Core?</li><li>What is your level of experience with SQL Server, including Stored Procedures, Query Optimization, and Database Design?</li><li>Have you worked on .NET Core / ASP.NET Core projects in a production environment?</li><li>Which front-end technologies have you worked with professionally? </li><li>Do you have experience using Git for version control in a team environment?</li><li>What is your current salary?</li><li>Are you comfortable working onsite in Johar Town from 2 PM to 11 PM? or 5 working days in a week?</li></ul>Work Location: In person

.NET Developer

NorthBay Solutions

<div>Job Description: Android Developer (Keyboard Development Experience) 
Position: Android Developer 
Experience Required: 5+ Years 
Location: Pakistan (Hybrid) 
Contract Duration: 2 Months 
Timings: 5 pm - 2 am 
 
Job Overview 
We are looking for an experienced Android Developer with strong expertise in custom keyboard development to join our team for a short-term contract project. The ideal candidate should have hands-on experience building, optimizing, and maintaining Android keyboard applications, with a strong understanding of Android input methods and performance optimization. 
Key Responsibilities<ul><li>
Design, develop, and maintain Android keyboard applications using modern Android development practices.
</li><li>Work extensively with Android Input Method Framework (IME) and custom keyboard implementations.
</li><li>Develop features such as custom layouts, themes, language support, suggestions, autocorrection, and user interactions.
</li><li>Optimize keyboard performance, responsiveness, memory usage, and overall user experience.
</li><li>Integrate APIs, third-party libraries, and backend services when required.
</li><li>Debug and resolve complex Android application issues.
</li><li>Ensure compatibility across different Android versions and device configurations.
</li><li>Collaborate with product and engineering teams to deliver high-quality solutions within project timelines.
</li></ul>Required Skills &amp; Experience<ul><li>
5+ years of professional experience in Android application development.
</li><li>Strong experience in developing Android keyboards / IME applications.
</li><li>Strong proficiency in Kotlin and/or Java.
</li><li>Deep understanding of Android SDK, Android lifecycle, UI components, and performance optimization.
</li><li>Experience with custom views, UI rendering, and responsive layouts.
</li><li>Knowledge of Android security, permissions, and background processing.
</li><li>Experience working with APIs, Git, and modern Android development tools.
</li><li>Strong problem-solving and debugging skills.
</li></ul>Preferred Qualifications<ul><li>
Experience building keyboard apps similar to custom typing solutions, productivity keyboards, or language keyboards.
</li><li>Experience with multilingual keyboard support.
</li><li>Familiarity with Jetpack libraries and modern Android architecture patterns.
</li><li>Experience publishing and maintaining apps on Google Play Store.
</li></ul>We are looking for someone who can quickly understand the requirements and contribute effectively to the development of a high-quality Android keyboard solution. 

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Senior Android Developer

AHU Technologies PVT Ltd

Job Title: Junior Web Developer (with Graphic Design Experience)Location: DHA 8,EX-PARK VIEW,LAHORE Employment Type: Night shift (7pm-4am) Department: IT / Digital MediaContact: 03454902977Job SummaryWe are seeking a creative and motivated Junior Web Developer with graphic design experience to join our team. The ideal candidate will be responsible for developing, maintaining, and improving websites while also contributing to the creation of visually appealing graphics and digital content. This role is perfect for someone who combines technical web development skills with a strong eye for design and user experience.Key Responsibilities<ul><li>Develop, maintain, and update company websites and web applications.</li><li>Convert design concepts into responsive and user-friendly web pages.</li><li>Collaborate with marketing and design teams to create engaging digital experiences.</li><li>Design graphics, banners, social media creatives, and website assets.</li><li>Ensure websites are optimized for performance, usability, and SEO.</li><li>Test and troubleshoot website issues across different browsers and devices.</li><li>Assist in website content management and updates.</li><li>Maintain consistency in branding across all digital platforms.</li><li>Stay updated with the latest web development and design trends.</li></ul>Required Qualifications<ul><li>Bachelor's degree or Diploma in Computer Science, Software Engineering, IT, Graphic Design, or a related field.</li><li>1&ndash;2 years of experience in web development and graphic design (fresh graduates with strong portfolios may also apply).</li><li>Proficiency in:</li><li>HTML5, CSS3, JavaScript,</li><li>Bootstrap or other responsive frameworks</li><li>WordPress or other CMS platforms</li><li>Adobe Photoshop, Illustrator, Canva, or similar design tools</li><li>Basic understanding of UI/UX design principles.</li><li>Knowledge of website hosting, domains, and website maintenance.</li><li>Strong problem-solving and communication skills.</li></ul>Preferred Skills<ul><li>Experience with PHP, MySQL, or other backend technologies.</li><li>Familiarity with React.js, Vue.js, or similar frontend frameworks.</li><li>Basic knowledge of SEO best practices.</li><li>Experience creating motion graphics or video editing content.</li><li>Understanding of version control systems such as Git.</li></ul>Key Competencies<ul><li>Creativity and attention to detail.</li><li>Strong visual design sense.</li><li>Ability to manage multiple projects and meet deadlines.</li><li>Team-oriented with a positive attitude.</li><li>Willingness to learn and adapt to new technologies.</li></ul>Pay: Rs50,000.00 - Rs70,000.00 per monthWork Location: In person

WEB DEVELOPER PLUS GRAPHIC DESIGNER

Code Expedition

Requirements:<ul><li>2&ndash;3 years of professional experience in Python development.</li><li>Strong hands-on experience with Python frameworks, including Django, FastAPI, and Tornado.</li><li>Experience designing and developing applications using Microservices Architecture.</li><li>Proficiency in PostgreSQL, including database design, query optimization, and performance tuning.</li><li>Solid understanding of Multithreading, Asynchronous Programming, and scalable application development.</li><li>Experience with frontend technologies such as React.js or Vue.js.</li><li>Hands-on experience with CI/CD pipelines and deploying applications on AWS.</li><li>Strong written communication skills with the ability to collaborate effectively with clients and stakeholders.</li><li>Ability to work independently, manage priorities, and deliver results in a fast-paced environment.</li><li>Experience working closely with UI/UX designers to develop responsive, user-friendly, and visually appealing web applications.</li></ul>Preferred Qualifications<ul><li>Experience with containerization technologies such as Docker.</li><li>Familiarity with Agile/Scrum development methodologies.</li><li>Knowledge of cloud-native application development and deployment best practices.</li></ul>Pay: Rs100,000.00 - Rs150,000.00 per monthWork Location: In person

Python-Fullstack Developer

HR POD Careers

<div>
 
 
 Requirements:
 
 
 
 
 <ul>
 <li>
 Strong software engineering background with hands-on coding experience.
 </li>
 <li>
 Proven experience remediating security vulnerabilities in production environments.
 </li>
 <li>
 Solid understanding of the OWASP Top 10 and secure software development principles.
 </li>
 <li>
 Experience with backend development using technologies such as Node.js, Python, Go, Java, or similar.
 </li>
 <li>
 Knowledge of authentication, session management, authorization, and API security.
 </li>
 <li>
 Experience reviewing, debugging, and refactoring existing codebases.
 </li>
 <li>
 Familiarity with Bug Bounty Programs and vulnerability disclosure workflows (e.g., HackerOne, Bugcrowd).
 </li>
 <li>
 Experience with static and dynamic application security testing (SAST/DAST) tools.
 </li>
 <li>
 Understanding of DevSecOps practices and CI/CD security integrations.
 </li>
 <li>
 Experience with cloud security and secure infrastructure practices.
 </li>
 <li>
 Knowledge of automated security testing and security monitoring tools.
 </li>
 <li>
 Familiarity with threat modeling and secure architecture design.
 
 
 
 </li>
 </ul>
 
 
 Responsibilities:
 
 
 
 
 <ul>
 <li>
 Analyze, prioritize, and remediate security vulnerabilities identified through internal assessments and Bug Bounty Program reports.
 </li>
 <li>
 Develop secure, scalable, and production-ready backend and application code.
 </li>
 <li>
 Review and refactor existing code to address security weaknesses.
 </li>
 <li>
 Implement security best practices across authentication, authorization, APIs, encryption, and data protection.
 </li>
 <li>
 Conduct secure code reviews and recommend security-focused architectural improvements.
 </li>
 <li>
 Collaborate with Engineering, DevOps, and QA teams to enhance application security.
 </li>
 <li>
 Support the integration of security controls within the SDLC and CI/CD pipelines.
 </li>
 <li>
 Document vulnerability findings, remediation activities, and preventive measures.
 
 </li>
 </ul>
</div>

Security Software Engineer (Onsite, Lahore, PKR Salary)

Explore 23+ Backend developer in Lahore this July. Find roles across top companies and apply now to boost your career.