python backend developer

Intellectsoft

<div>Our customer's product is an AI-powered platform that helps businesses make better decisions and work more efficiently. It uses advanced analytics and machine learning to analyze large amounts of data and provide useful insights and predictions. The platform is widely used in various industries, including healthcare, to optimize processes, improve customer experiences, and support innovation. It integrates easily with existing systems, making it easier for teams to make quick, data-driven decisions to deliver cutting-edge solutions.
Requirements<ul>
<li>
Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science or related field;</li>
<li>4+ years of hands-on experience with Machine Learning and production LLM systems;</li>
<li>Strong ML fundamentals: transformers, prompt engineering, embeddings, vector search;
</li><li>Backend API experience with FastAPI, async patterns, and rate limiting;</li>
<li>Experience with vector databases (Pinecone, Weaviate, Chroma) and hybrid search;
</li><li>Advanced Python skills: async/await, type hints, Pydantic, SOLID principles;
</li><li>MLOps experience: MLflow, model versioning, A/B testing; Langfuse preferred;</li>
<li>NLP &amp; computer vision experience: document understanding, OCR, GPT-4 Vision;</li>
<li>Experience building feature pipelines, real-time &amp; batch inference, and model serving;</li>
<li>Familiarity with HuggingFace (required); LangChain / LlamaIndex preferred.</li></ul> 

Nice to have skills:<ul>
<li>
Understanding of DevOps, CI / CD including: Docker containerization, Azure DevOps pipelines or GitHub Actions, Kubernetes (nice to have);</li>
<li>Data security including: Multi-tenant data isolation, Secure key management (Azure Key Vault), Audit trail implementation;</li>
<li>Experience in designing on cloud platform including: Azure (strongly preferred): Azure OpenAI, Blob Storage, Key Vault, Container Registry, AWS or GCP;</li>
<li>Experience in data engineering in Big Data systems including: Large-scale data processing, ETL/ELT pipelines.</li>
</ul>
Responsibilities:<ul>
<li>
Design and build scalable backend systems, APIs, and microservices with FastAPI;</li>
<li>Write high-quality backend code using Python, SQL, async/await, and solid OOP principles;</li>
<li>Apply software best practices to ensure reliability, scalability, and on-time delivery;</li>
<li>Implement dependency injection, layered architectures, and SOLID design patterns;</li>
<li>Integrate Azure OpenAI (GPT-4, GPT-4 Vision) with robust retry and error handling;</li>
<li>Build LLM observability with Langfuse (prompts, tokens, cost, latency);</li>
<li>Develop prompt management with versioning, fallbacks, and cost optimization strategies;</li>
<li>Orchestrate async workflows using Celery for complex pipelines;</li>
<li>Design multi-tenant architectures with strict data isolation;</li>
<li>Integrate third-party APIs (Veeva Vault, Adobe PDF Services, OCR);</li>
<li>Troubleshoot systems using structured logging and distributed tracing;</li>
<li>Document APIs and changes using OpenAPI/Swagger.</li>
</ul>
Benefits<ul>
<li>
Employment-based cooperation</li>
<li>Awesome projects with an impact</li>
<li>Comprehensive insurance for you and your family (health, life, and accident)</li>
<li>Paid PTO policy (vacation, sick leaves, and public holidays)</li>
<li>Tech equipment provided</li>
<li>Udemy courses, workshops, trainings &amp; expert knowledge-sharing</li>
<li>Clear career path</li>
<li>Flexible hours &amp; work setup</li></ul></div>

Senior Python Backend Developer / ML Engineer (IR-501)

ZAPTA Technologies (Pvt.) Limited

Job Title:Python Backend Developer (Django / FastAPI)We are seeking a Python Backend Developer with strong experience in Django and FastAPIto develop, maintain, and scale backend systems for web applications. The ideal candidate willhave hands-on experience delivering multiple real-world projects and working with moderncloud-based technologies.Key Responsibilities:● Design, develop, and maintain backend applications using Python, Django, andFastAPI● Build and consume RESTful APIs with proper authentication and authorization● Work on 2&ndash;4 production-level projects using Django and FastAPI● Integrate third-party services including payment gateways, social login providers, andcloud storage (AWS S3)● Manage and optimize databases using PostgreSQL or MySQL● Containerize applications using Docker and support deployment workflows● Collaborate with frontend developers, QA, and DevOps teams● Debug, troubleshoot, and improve application performanceRequirements:● Strong proficiency in Python● Hands-on experience with Django and FastAPI● Experience with third-party API integrations● Working knowledge of PostgreSQL and/or MySQL● Experience with Docker and containerized applications● Familiarity with Git and version controlPreferred Qualifications:● Experience with AWS services (EC2, S3, RDS)● Understanding of deployment pipelines and cloud environmentsJob Type: Full-timeWork Location: In person

Backend Developer (python)

Esyacode Software

Job Description Role: Python Backend Developer Experience: Min 8 Years - 14 Years Location: Whitefield, Bangalore (Hybrid)We are looking for an experienced Python Backend Developer with strong expertise in building scalable web applications and RESTful APIs using Flask/FastAPI. The ideal candidate should have a solid background in backend development, basic exposure to Microsoft Azure, and a good understanding of web application architecture.Key Responsibilities Design, develop, and maintain RESTful APIs using Python frameworks such as Flask and FastAPI Build scalable, secure, and high-performance backend services Collaborate with frontend developers, DevOps, and product teams to deliver end-to-end solutions Implement business logic, data validation, and API integrations Optimize application performance and ensure high availability Participate in architecture discussions and contribute to system design decisions Write clean, reusable, testable, and well-documented code Troubleshoot, debug, and resolve production issues Required Skills &amp;Qualifications 8 years of experience with min. 5+ years of relevant experience in Python backend/web development Strong experience with Flask and/or FastAPI Solid understanding of REST API design principles Experience with relational and/or NoSQL databases (PostgreSQL, MySQL, MongoDB, etc.) Knowledge of authentication and authorization mechanisms (JWT, OAuth, etc.) Familiarity with Git and CI/CD workflowsRequired SkillsPython MongoDB RESTful APIs PostgreSQL MySQL GIT SQL/NoSQL databases FastAPI CI/CD JWT Flask Backend development OAuth Web Application Architecture Relational DatabasesExperience 8 - 14 yearsBudget 20 LPA - 34 LPANotice Period Immediate - Serving NoticeJob Types: Full-time, PermanentPay: ₹1,592,781.59 - ₹3,380,228.33 per yearWork Location: In person

Senior Python Developer

AppedologyPK Recruitment

Role: Django DeveloperLocation: DHA Phase 5, Tauheed Commercial Area, Karachi - PakistanShift Nature: MorningShift Type: Full-TimeDays: Mon - FriJob Description:2 years of experience as Python Backend Developer with solid, hands-on expertise in Django and FastAPI to help build, enhance, &amp; scale backend services for modern web applications.Strong command of Python.Proven experience with Django and FastAPI.Practical experience integrating third-party APIs.Good understanding of PostgreSQL.Experience with Docker and container-based development.Familiarity with Git and version control practices.Preferred Qualifications:Exposure to AWS / Google CloudUnderstanding of CI/CD, deployment pipelines, and cloud infrastructure basicsJob Type: Full-timeWork Location: In person

Python Developer (Django)

Experts Helping Businesses

Job description:We are looking for a passionate and skilled Python developer (backend) to join our growing development team. The ideal candidate should have 1+ years of experience in backend development or strong project work for fresh graduates. You will be responsible for building efficient backend systems, developing APIs, and integrating data-driven solutions that power modern web applications.This is an excellent opportunity for someone who is proactive, eager to learn, and wants to grow in a fast-paced technical environment.Key Responsibilities:<ul><li>Develop, test, and maintain backend applications using Python.</li><li>Build and integrate RESTful APIs for web and mobile platforms.</li><li>Design and manage relational databases such as PostgreSQL or MySQL.</li><li>Write clean, efficient, and well-documented code following best practices.</li><li>Collaborate with team members to plan and deliver high-quality solutions.</li><li>Use Git for version control and team collaboration.</li></ul>Requirements:<ul><li>Experience: 1+ years in backend development or a strong project portfolio for fresh graduates.</li><li>Languages: Proficient in Python.</li><li>Frameworks: Hands-on experience with Django, FastAPI, or Flask.</li><li>APIs: Solid understanding of RESTful API design principles.</li><li>Databases: Experience with SQL and relational databases (PostgreSQL, MySQL).</li><li>Tools: Familiar with Git and version control systems.</li><li>Fundamentals: Strong grasp of computer science fundamentals, data structures, and algorithms.</li><li>Attitude: Proactive, responsible, and eager to learn new technologies and frameworks.</li></ul>Job Type: Full-timePay: Rs40,000.00 - Rs80,000.00 per monthWork Location: In person

Python Developer Full Time | Night Shift

Lab23 Technology

Job Title: Junior Backend Engineer (Node.js + FastAPI)Experience: 1 &ndash; 1.5 Years Location: Bahria Town Lahore Company: LAB23 TechnologiesAbout LAB23 TechnologiesLAB23 Technologies is an AI-driven product development company building scalable SaaS platforms and AI Agents across E-commerce (Zanderio AI), Real Estate, FinTech, and Energy Systems.We specialize in designing intelligent backend systems that power AI agents, automation workflows, predictive engines, and conversational systems.We are looking for a driven Junior Backend Engineer who is comfortable working with both Node.js and Python (FastAPI) and is eager to contribute to AI-powered system architecture.Role OverviewAs a Junior Backend Engineer, you will:<ul><li>Build scalable backend systems</li><li>Work on AI Agent workflows and orchestration</li><li>Handle complex data structures and system logic</li><li>Contribute to multi-language backend architecture (Node.js + FastAPI)</li></ul>This role is ideal for someone who understands backend fundamentals deeply and wants exposure to AI infrastructure and intelligent systems.Key Responsibilities<ul><li>Develop and maintain backend services using Node.js</li><li>Build lightweight AI-related microservices using Python (FastAPI)</li><li>Design scalable RESTful APIs for SaaS and AI-driven applications</li><li>Work on AI Agent workflows (state management, memory, orchestration)</li><li>Manage structured and unstructured data pipelines</li><li>Integrate LLM APIs (OpenAI, Claude, etc.) with backend systems</li><li>Optimize backend performance and ensure production stability</li><li>Contribute to backend architecture planning and documentation</li><li>Debug and resolve system-level issues in staging/production</li><li>Collaborate with AI Engineers and Frontend teams</li></ul>Technical Requirements Must Have:<ul><li>1 &ndash; 1.5 years of backend experience</li><li>Strong proficiency in Node.js</li><li>Good working knowledge of Python</li><li>Experience building APIs using:</li><li>Express.js / Node frameworks</li><li>FastAPI (or similar Python framework)</li><li>Strong understanding of:</li><li>Async programming</li><li>Middleware architecture</li><li>JWT authentication</li><li>API security best practices</li><li>Experience with databases:</li><li>MongoDB (preferred)</li><li>OR PostgreSQL / MySQL</li><li>Understanding of system design basics</li><li>Experience with Git and version control</li></ul>Good to Have:<ul><li>Experience integrating AI APIs (OpenAI, Anthropic, etc.)</li><li>Understanding of vector databases (Pinecone, Weaviate, etc.)</li><li>Knowledge of Redis / caching</li><li>Experience with Docker</li><li>Exposure to microservices architecture</li><li>Experience building SaaS backend systems</li></ul>What We&rsquo;re Looking For<ul><li>Strong logical and analytical mindset</li><li>Ability to understand complex workflows</li><li>Comfort working with data-heavy systems</li><li>Clean coding standards and modular design approach</li><li>Ownership mentality</li><li>Ability to work in a fast-paced startup environment</li></ul>Growth OpportunityAt LAB23, you will:<ul><li>Work on real AI Agent systems</li><li>Contribute to scalable SaaS platforms</li><li>Learn advanced backend and system architecture</li><li>Gain hands-on exposure to AI integrations</li><li>Grow into Mid-Level Backend or AI Systems Engineer</li></ul>High performers can move toward:<ul><li>AI Backend Specialist</li><li>System Architect</li><li>Technical Lead (Long-term path)</li></ul>CompensationCompetitive salary based on skill and performance. Performance-based growth opportunities available.Job Type: Full-timePay: From Rs50,000.00 per monthAbility to commute/relocate:<ul><li>Lahore: Reliably commute or planning to relocate before starting work (Preferred)</li></ul>Work Location: In person

Junior Backend Engineer (Node.js + FastAPI)

Binary Brix 

Job Title: Backend Developer / Backend EngineerExperience: 3&ndash;4 Years Location: Onsite &ndash; Lahore / Hybrid / Remote Job Type: Full-TimeAbout the RoleWe are looking for a skilled Backend Developer to design, build, and maintain scalable server-side applications and APIs. You will work closely with frontend engineers, DevOps, and product teams to deliver secure, high-performance systems.Key Responsibilities<ul><li>Design, develop, and maintain RESTful / GraphQL APIs.</li><li>Build scalable backend services using Node.js / Python / Java / .NET.</li><li>Work with databases: PostgreSQL, MySQL, MongoDB.</li><li>Implement authentication, authorization, and security best practices.</li><li>Optimize application performance and scalability.</li><li>Write clean, maintainable, and well-documented code.</li><li>Integrate third-party services and APIs.</li><li>Implement logging, monitoring, and error handling.</li><li>Participate in code reviews and Agile ceremonies.</li></ul>Required Skills &amp; Qualifications<ul><li>3&ndash;4 years of experience as a Backend Developer / Software Engineer.</li><li>Strong proficiency in at least one backend language:</li><li>Node.js (Express/NestJS) / Python (Django/FastAPI) / Java (Spring Boot) / .NET</li><li>.</li><li>Solid understanding of API design and microservices architecture.</li></ul><ul><li>Experience with SQL and NoSQL databases.</li><li>Knowledge of Git / version control systems.</li><li>Understanding of cloud platforms (AWS / Azure / GCP).</li><li>Familiarity with Docker &amp; containerization.</li><li>Good problem-solving and communication skills.Nice to Have (Plus Points)</li><li>Experience with event-driven systems (Kafka, RabbitMQ).</li><li>Knowledge of CI/CD pipelines.</li><li>Experience with caching (Redis).</li><li>Exposure to DevOps / infrastructure concepts.</li><li>Experience in high-traffic SaaS or fintech systems.</li></ul>What We Offer<ul><li>Competitive salary package.</li><li>Work on scalable backend systems.</li><li>Learning and certification support.</li><li>Flexible work culture.</li><li>Career growth into Senior Backend / Tech Lead / Architect.</li></ul>Job Type: Full-timePay: Rs200,000.00 - Rs250,000.00 per monthWork Location: In person

Backend Developer / Backend Engineer

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