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senior software engineer i - backend

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backend engineer

dubizzle

<div>
 
 As a Backend Engineer you will liaises with the other backend and frontend engineers within your product stream, the QA team, the design team and your Tech Team Leads. As a senior member of the team, you will be responsible for advancing our development stack and ensuring scale as we grow to millions of monthly active users across many countries.
 
 
 
 In this role, you will:
 
 <ul>
 <li>
 Hit the ground running - Gather up-to-date and in-depth understanding of the dubizzle code base and technologies stack within weeks;
 </li>
 <li>
 Research and apply industry trends as part of your daily work;
 </li>
 <li>
 Create unit tests in accordance with our established standards to cover assigned work;
 </li>
 <li>
 Write and maintain exemplary code following dubizzle's programming practices;
 </li>
 <li>
 Actively contribute in post-release maintenance issues;
 </li>
 <li>
 Develop elegant solutions for complex problems;
 </li>
 <li>
 Pioneer reliability and efficiency of our current code base, platforms and/or core systems;
 </li>
 <li>
 Impact on the direction and scope of dubizzle's technical vision within your stream;
 </li>
 <li>
 Work in a mentoring capacity within a peer-programming environment and provide guidance on tasks, irrespective of complexity or scale;
 </li>
 <li>
 Code review all major pull requests, defining programming standards and providing constructive feedback
 </li>
 <li>
 Design and delivery of multiple REST based APIs and previous exposure to Service Oriented Architecture;
 </li>
 <li>
 Capacity to push back requirements when incomplete;
 </li>
 <li>
 Handle the entire software development life cycle, end to end;
 </li>
 <li>
 Lead product planning meetings and architect solutions within your stream;
 </li>
 <li>
 Liaises with the other back end engineers within your product stream, the QA team, design team and your Tech Team Lead;
 </li>
 <li>
 Liaise with other tech teams to share innovations from your stream
 
 
 </li>
 </ul>
 
 Requirements
 
 
 
 <ul>
 <li>
 2+ years of professional back-end software engineering experience; Python preferred;
 </li>
 <li>
 Experience with Cloud hosted infrastructure and Technologies; AWS preferred;
 </li>
 <li>
 Prior experience with Kubernetes &amp; Docker will earn you brownie points;
 </li>
 <li>
 Experience working on high-traffic and large-scale web products is preferred;
 </li>
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 Experience with web infrastructure, SOA, distributed systems, performance analysis, search infrastructure;
 </li>
 <li>
 Been on at least one "death march" and know exactly why some things are to be avoided;
 </li>
 <li>
 Strong understanding of design patterns including asynchronous programming, queuing, logging, security and persistence;
 </li>
 <li>
 Mastery of different caching layers and strategies including memcached;
 </li>
 <li>
 Good understanding of build process management and continuous integration;
 </li>
 <li>
 Mastery of testing methodologies (unit tests, component tests, integration tests, etc.);
 </li>
 <li>
 Excellent communication &amp; interpersonal skills; This is an absolute must, we have heated debates around complicated subjects and you will be expected to lead conversations around them
 </li>
 </ul>
</div>

Backend Engineer

Confiz

<div>The ideal candidate will be a Python expert with a primary focus AI/ML. They will also be responsible for maintaining existing applications and collaborating with cross-functional teams.
Responsibilities
<ul><li>Design, develop, and optimize backend services and microservices using Python (FastAPI/Flask) following best practices for scalability, security, and maintainability.</li>
<li>Build and maintain robust RESTful APIs, including authentication/authorization, rate limiting, logging, and monitoring.</li>
<li>Architect and deploy cloud-native applications using AWS (Lambda, ECS/EKS, API Gateway, S3, CloudWatch, RDS/DynamoDB) or equivalent cloud platforms.</li>
<li>Work with Docker/Kubernetes to containerize, orchestrate, and scale backend applications in production environments.</li>
<li>Design efficient data models and integrate with relational and NoSQL databases (PostgreSQL, MySQL, DynamoDB).</li>
<li>Implement CI/CD pipelines and automated deployments using GitHub Actions, GitLab, Azure DevOps, or similar tooling.</li>
<li>Collaborate with product managers and engineering teams to integrate backend systems into enterprise workflows.</li>
<li>Monitor and evaluate deployed services, improving performance, reliability, and cost efficiency based on metrics and user feedback.</li>
<li>Document backend architecture, APIs, deployment processes, and operational guidelines for maintainability and reuse..</li>
</ul>
Required Skills &amp; Qualifications
<ul><li>Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science, Software Engineering, Data Science, or a related field.</li>
<li>5+ years of professional experience in backend engineering, with strong proficiency in Python.</li>
<li>Hands-on experience with FastAPI or Flask, including API design, validation, middleware, and performance optimization.</li>
<li>Strong understanding of AWS or similar cloud platforms, with experience deploying and running production-grade services.</li>
<li>Proficiency in Python libraries commonly used in backend and data workflows (SQLAlchemy, Pydantic, boto3, openai, pandas, numpy).</li>
<li>Familiarity with Docker, Kubernetes, and containerized deployments in cloud environments.</li>
<li>Strong understanding of distributed systems, microservices, and asynchronous programming.</li>
<li>Good problem-solving and analytical skills with a hands-on, ownership-driven mindset.</li>
<li>Strong communication skills and ability to work in cross-functional teams.</li>
</ul>
Nice to Have - AI/ML Requirements:
<ul><li>Exposure to transformers, embeddings, RAG, or LLM frameworks such as LangGraph, LangChain, or Autogen.</li>
<li>Experience integrating AI/ML inference endpoints or 3rd-party AI services into backend systems.</li>
<li>Experience with model fine-tuning or vector databases is a plus.</li>
<li>Integrate AI/LLM-based components into backend services when required.</li>
<li>Build and maintain basic RAG or vector-search pipelines that interface with text or image knowledge bases.</li>
<li>Apply prompt engineering, model fine-tuning, or data preprocessing techniques when enhancing AI-powered features.</li>
<li>Work with transformers, LLM APIs, or pretrained models as part of feature add-ons or experimental capabilities</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>

Backend Python Engineer

Xynotech

Job descriptionWe are seeking an experienced PHP Lead to join our team. The ideal candidate will have strong expertise in PHP development and the ability to work with legacy or modern PHP frameworks (e.g., Laravel, Symfony, CodeIgniter, or custom solutions). You will be responsible for maintaining, optimizing, and extending our existing PHP-based systems while collaborating with the team to drive best practices.Key Responsibilities:&middot; Develop, maintain, and optimize PHP-based applications (framework or legacy code).&middot; Analyze and improve existing codebase for performance, security, and scalability.&middot; Collaborate with frontend developers, DevOps, and product teams to deliver robust solutions.&middot; Troubleshoot and debug complex issues across the application stack.&middot; Integrate third-party APIs and services as needed.&middot; Ensure adherence to PHP best practices (PSR standards, OOP, MVC, etc.).&middot; Write clean, reusable, and well-documented code.&middot; Mentor junior developers and participate in code reviews.&middot; Assist in migrating legacy systems to modern frameworks (if applicable).Requirements:&middot; 8-10+ years of PHP development experience (with or without a framework).&middot; Strong understanding of OOP, MVC architecture, and PHP design patterns.&middot; Experience working with at least one PHP framework (Laravel, Symfony, CodeIgniter, etc.) or custom frameworks.&middot; Proficiency in MySQL/PostgreSQL and database optimization.&middot; Familiarity with RESTful APIs, Composer, Git, and Linux environments.&middot; Knowledge of frontend technologies (JavaScript, HTML5, CSS) is a plus.&middot; Experience with legacy PHP systems (if applicable) and willingness to modernize them.&middot; Strong problem-solving skills and attention to detail.Nice to Have:&middot; Experience with Docker, CI/CD pipelines, or cloud platforms (AWS/Azure).&middot; Knowledge of testing frameworks (PHPUnit, Pest).&middot; Exposure to microservices or serverless architectures.Job Type: Full-timeExperience:<ul><li>PHP Developer: 8 years (Required)</li></ul>Work Location: In person

Lead Backend Engineer – PHP

ABS INTERNATIONAL

Backend Architect | Lead Scalable Systems | Earn up to 120k+ABS International (Gulshan-e-Iqbal Branch) is hiring a Backend Software Engineer for our In-House US Product Team. We are looking for a Strong Engineer (2+ Years Exp) who can build scalable, high-performance systems and is ready to level up to an Architect role.&#9888; REALITY CHECK: This is not a CRUD job. If you are stuck in basic web development, this is your breakout opportunity.THE OFFER:<ul><li>Salary Range: PKR 80,000 &ndash; PKR 120,000+ (Based on Technical Code Test).</li><li>Fixed Base: Competitive and based on experience.</li><li>Growth: Path to System Architect within 12-18 months.</li><li>Tech: Full access to Laracasts, AWS, and Docker environments.</li><li>Shift: Night (5:00 PM &ndash; 1:00 AM). Avoid the traffic.</li></ul>THE STACK (Real Engineering):<ul><li>Core: PHP 8.2+, Laravel 10/11.</li><li>Optimization: Redis Caching &amp; Queue Management.</li><li>DevOps: Docker, AWS (EC2/S3), CI/CD.</li></ul>REQUIREMENTS (Non-Negotiable):<ul><li>Experience: 2+ Years in Laravel/PHP (Proven professional experience).</li><li>Database: You must know Raw SQL and complex Schema Design.</li><li>Portfolio: A GitHub Link with actual code is MANDATORY.</li></ul>HOW TO APPLY: Click &quot;Apply Now&quot;. Mandatory: Paste your GitHub profile link in the screening question.Job Type: Full-timePay: From Rs80,000.00 per monthApplication Question(s):<ul><li>How many years of Laravel Backend experience do you have?</li><li>Please paste your GitHub Profile Link here:</li><li>Are you comfortable working Night Shift at Gulshan-e-Iqbal?</li></ul>Work Location: In person

Backend Software Engineer (Laravel / API) - Night Shift

Code CureAI

We are looking for a highly skilled Java Engineer with strong expertise in modern backend technologies, cloud platforms, and scalable system design. The role requires proficiency in .NET, Java, Spring frameworks, microservices, and containerized deployments, with exposure to frontend frameworks as a secondary skill set.What You&rsquo;ll DoThis position is ideal for a driven engineer passionate about building robust backend systems, cloud-native applications, and contributing to high-performing software solutions.Backend Development &amp; Cloud Engineering<ul><li>Design, develop, and maintain backend services using .NET / C# and Java (J2EE/Jakarta EE 9.0+).</li><li>Build microservices and enterprise applications using Spring Framework (5.x+), Spring Boot (2.6+), and Spring Cloud.</li><li>Deploy and manage applications in Docker / Kubernetes environments.</li><li>Implement cloud-native solutions with hands-on AWS Cloud services.</li><li>Apply unit and integration testing frameworks such as JUnit, Mockito, AssertJ, SpringTest, TestContainers, and WireMock.</li><li>Collaborate using GitHub, Jira, and CI/CD pipelines for development and project management.</li></ul>Collaboration &amp; Continuous Improvement<ul><li>Work closely with cross-functional teams to deliver scalable backend architectures.</li><li>Ensure code quality by following clean code, OOP principles, and design patterns.</li><li>Optimize performance, monitor bottlenecks, and maintain security best practices.</li><li>Write and maintain documentation, unit tests, and integration tests for reliability.</li></ul>What You Know<ul><li>3+ years of expertise in Java (J2EE/Jakarta EE 9.0+).</li><li>Hands-on experience with Spring Framework (5.x+), Spring Boot (2.6+), and Spring Cloud.</li><li>Proficiency with Docker, Kubernetes, and AWS Cloud.</li><li>Familiarity with testing frameworks: JUnit, Mockito, AssertJ, SpringTest, TestContainers, WireMock (at least one or two).</li><li>Knowledge of version control (GitHub) and project tracking tools (Jira).</li><li>Secondary exposure to frontend frameworks such as React or Angular.</li><li>Strong problem-solving, debugging, and analytical skills.</li></ul>Education<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.</li></ul>Job Type: Full-timeWork Location: In person

Java Developer

eSpark Consulting Group

We are looking for a skilled Backend Developer with hands-on experience in backend development, specifically with Node.js, Java, modern DevOps practices, and Kafka. The ideal candidate will be responsible for building scalable backend systems, designing robust APIs, and contributing to high-quality architecture and deployment workflows.Responsibilities:<ul><li>Develop, maintain, and enhance backend services using Node.js and Java, ensuring system reliability, scalability, and high performance.</li><li>Design, develop, test, and deploy RESTful APIs and backend endpoints supporting microservices and distributed architecture.</li><li>Architect and manage Apache Kafka&ndash;based event-driven systems, including topic creation, partition strategies, schema management, producers, consumers, and real-time streaming workflows.</li><li>Implement message serialization formats such as JSON, Avro, or Protobuf for Kafka-based systems.</li><li>Optimize event throughput and latency in Kafka clusters while ensuring proper load balancing and fault tolerance.</li><li>Collaborate in architectural planning, contributing to system design decisions, scalability strategies, and high-availability setups.</li><li>Develop microservices using Node.js and Java Spring Boot, ensuring modularity, clean structure, and efficient service communication.</li><li>Build CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI) for automated builds, testing, deployments, and environment configurations.</li><li>Manage DevOps workflows, including container build automation, environment setup, secrets management, and release processes.</li><li>Write infrastructure automation scripts (IaC tools or shell scripting) for smoother deployments and reproducible environments.</li><li>Work with SQL databases like MySQL and PostgreSQL, focusing on efficient schema design, indexing, and optimized query performance.</li><li>Manage NoSQL databases like MongoDB and Redis, ensuring proper data modeling and high-performance caching.</li><li>Integrate backend services with front-end applications, mobile clients, internal microservices, and third-party APIs.</li><li>Use Docker for containerization of services and apply Kubernetes for orchestration, scaling, deployment strategies, and cluster operations.</li><li>Implement API-level security controls, including authentication, authorization, RBAC, rate limiting, and token-based access.</li><li>Diagnose and resolve production incidents, using logs, metrics, and monitoring tools to perform root-cause analysis and preventive fixes.</li><li>Maintain code quality, documentation, code reviews, and adherence to engineering best practices and design patterns.</li><li>Monitor system performance and infrastructure health using Prometheus, Grafana, ELK Stack, or CloudWatch dashboards.</li><li>Optimize application performance, caching strategies, resource efficiency, and database query tuning for improved throughput.</li><li>Manage Git workflows, including branching strategies, pull/merge request reviews, version control hygiene, and release management</li><li>Build and integrate backend services with Odoo ERP, ensuring smooth data workflows, system configurations, and business logic execution.</li><li>Develop and maintain APIs and real time communication layers required for IoT-based connected systems and cloud operations.</li></ul>Requirements:<ul><li>Strong expertise in Node.js and Java, with hands-on experience in backend service development (experience with Spring Boot, Quarkus, or similar frameworks is a strong plus).</li><li>Hands-on experience working with Apache Kafka, including event streaming, pub/sub models, consumer groups, topic partitioning, and distributed messaging architectures.</li><li>Solid understanding of DevOps practices, including CI/CD pipelines, Git branching strategies, build automation, environment configuration, and automated deployment workflows.</li><li>Experience working with cloud platforms such as AWS, Azure, or GCP, covering compute services, storage solutions, IAM, networking basics, and cloud-native tooling.</li><li>Proficiency with SQL and NoSQL databases, including MySQL, PostgreSQL, MongoDB, and Redis, with strong skills in schema design, indexing, query optimization, and data modeling.</li><li>Strong knowledge of microservices architecture, API gateways, service discovery, inter-service communication patterns, and distributed systems concepts.</li><li>Advanced experience with Docker and Kubernetes, including containerization, orchestration, scaling strategies, cluster management, and deployment pipelines.</li><li>Strong problem-solving and debugging skills, with the ability to analyze issues across distributed systems and optimize overall application performance.</li><li>Excellent communication, collaboration, and teamwork abilities, with experience working closely with cross-functional teams such as DevOps, QA, Product, and Frontend.</li><li>Familiarity with monitoring and observability tools such as Grafana, Prometheus, ELK Stack, or CloudWatch for performance tracking and issue diagnosis.</li><li>Strong understanding of backend security best practices, including API security, authentication/authorization mechanisms, data protection, and secure coding standards.</li><li>Hands-on experience with Odoo ERP integration, backend communication, modular customization, and working with IoT/connected systems, including API interfacing and device-data handling.</li></ul>Nice to Have:<ul><li>Experience with additional messaging tools (RabbitMQ, SNS/SQS).</li><li>Knowledge of system design and high-availability architectures.</li><li>Understanding of backend security principles and API protection.</li><li>Experience with monitoring tools such as Prometheus, Grafana, ELK, or CloudWatch.</li></ul>Qualification: Bachelor&rsquo;s degree in Computer Science, Software Engineering, or related field.Experience: 3&ndash;4 years of professional experience as a Backend Engineer or Software Engineer.Benefits:<ul><li>Paid Time Off</li><li>Flexible Hour</li></ul>Job Type: Full-timeWork Location: In person

Backend Developer

10Pearls

<div>About 10Pearls
10Pearls is an end-to-end digital technology services partner helping businesses utilize technology as a competitive advantage. We help our customers digitalize their existing business, build innovative new products, and augment their existing teams with high-performance team members.
Our broad expertise in product management, user experience/design, cloud architecture, software development, data insights and intelligence, cyber security, emerging tech, and quality assurance ensures that we are delivering solutions that address business needs.
10Pearls is proud to have diverse clientele, including large enterprises, SMBs, and high-growth startups. We work with clients across industries including healthcare/life sciences, education, energy, communications/media, financial services, and hi-tech. Our many long-term, successful partnerships are built upon trust, integrity, and successful delivery and execution.
Role Overview
We are seeking a highly skilled Backend Engineer with strong expertise in real-time media streaming, low-latency communication, and distributed backend systems using C++ or Golang. The ideal candidate must have deep hands-on experience with streaming protocols, real-time communication frameworks, and high-performance backend engineering. This role involves designing and building backend microservices that power real-time audio/video communication, streaming pipelines, and low-latency data flows across distributed systems.
Responsibilities<ul><li>
Design, develop, and maintain high-performance backend services using Go or C++.</li><li>
Build and optimize real-time microservices that support low-latency communication across a distributed architecture.</li><li>
Develop and enhance WebSocket, REST, and real-time APIs used by client-facing applications.</li><li>
Work extensively with media streaming technologies, including RTP, SRTP, WebRTC, and related protocols.</li><li>
Implement and optimize WebRTC SFUs (Selective Forwarding Units) for scalable audio/video streaming.</li><li>
Integrate and optimize media workflows using tools and libraries such as FFmpeg and GStreamer.</li><li>
Work with databases such as MySQL, Redis, MongoDB, and design efficient data models for real-time workloads.</li><li>
Ensure backend services meet high standards of security, reliability, and performance using modern DevOps and SRE practices.</li><li>
Collaborate closely with Frontend, DevOps, and Product teams to deliver end-to-end features.</li><li>
Write clean, well-documented, and maintainable code following best engineering practices.</li><li>
Diagnose performance bottlenecks and optimize backend systems for scalability and speed.</li></ul>
Requirements<ul><li>
5+ years of hands-on backend development experience using Go and/or C++.</li><li>
Strong expertise in real-time media streaming, including one or more of the following:</li><li>
RTP / SRTP</li><li>
WebRTC (MUST-HAVE)</li><li>
WebRTC SFU implementation</li><li>
Deep understanding of video/audio processing, with experience using FFmpeg, GStreamer, or similar frameworks.</li><li>
Understanding of networking concepts, including TCP, UDP, ICE, STUN/TURN, and WebSockets.</li><li>
Strong understanding of concurrency, asynchronous programming, and performance tuning.</li><li>
Experience building and consuming RESTful and WebSocket APIs.</li><li>
Hands-on experience with message queues such as Kafka, NATS, or RabbitMQ.</li><li>
Experience working with cloud platforms (AWS, GCP, Azure).</li><li>
Strong problem-solving skills and the ability to work on low-latency, high-throughput systems.</li><li>
Proficient in C++ or Go for media streaming</li><li>
Familiarity with monitoring, logging, and tracing tools (e.g., Prometheus, Grafana, OpenTelemetry) is a plus.</li><li>
A good understanding of containerization and orchestration using Docker and Kubernetes is preferred.</li><li>
Experience working with real-time communication platforms is an added advantage.</li></ul>
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Senior/Staff Software Consultant - Golang/C++

Explore 355+ Backend engineer in Karachi Pakistan this December. Find roles across top companies and apply now to boost your career.