back end engineer

Stormfiber

Job description:We&rsquo;re Hiring: Software Engineer (Backend /Laravel/PHP/JS) - KarachiJoin our dynamic team and contribute to building high-quality web applications! We are seeking a passionate and detail-oriented Software Engineer to play a key role in our development processes.Responsibilities<ul><li>Develop medium to large scale web applications using PHP (MVC frameworks, such as Laravel, Yii2, CodeIgniter), HTML5, CSS3, Bootstrap and MySQL.</li><li>Work in distributed system environment and implement transaction management, queuing system and state tracking.</li><li>Ensure compliance with policies, procedures and controls of Information security.</li><li>Assist the team lead in designing the application and database architecture.</li></ul>Requirements<ul><li>Masters / Bachelors in Computer Science with minimum 3.0 CGPA.</li><li>Strong Object Oriented Programming concepts.</li><li>1-5 years of relevant experience in web application development in PHP using MVC framework.</li><li>Experience of working with relational databases.</li><li>Experience / understanding of version control system (GIT/GitLab).</li></ul>Job Types: Full-time, FresherPay: Up to Rs110,000.00 per monthApplication Question(s):<ul><li>What is Your Current Salary</li><li>What is Your Expected Salary</li><li>What is Your CGPA</li><li>What is Your Graduation Year</li></ul>Work Location: In person

Software Engineer (Backend /Laravel/PHP/JS)

Avanza Solutions

Senior Backend Engineer (Node.js / Next.js)Lendverse &ndash; AI-Embedded Credit Decisioning PlatformLendverse is building an AI-driven credit decisioning and lending infrastructure for banks and fintechs. We&rsquo;re looking for a Senior Backend Engineer to help scale our core backend systems and financial data pipelines.Responsibilities<ul><li>Build and scale backend microservices using Node.js &amp; Next.js</li><li>Design secure, high-performance REST/GraphQL APIs</li><li>Work on credit scoring, lending, and financial data pipelines</li><li>Integrate with banks, credit bureaus, KYC/AML providers, and payment gateways</li><li>Ensure system reliability, security, and compliance</li><li>Collaborate with product, data, and engineering teams</li></ul>Requirements<ul><li>5+ years backend engineering experience</li><li>Strong hands-on experience with Node.js (NestJS/Express) and Python (FastAPI/Flask/Django)</li><li>Fintech domain experience (lending, payments, banking, credit systems)</li><li>Experience with microservices, PostgreSQL, and cloud platforms</li><li>Familiarity with Docker, CI/CD, and scalable architectures</li></ul>Nice to Have<ul><li>Event-driven systems (Kafka, RabbitMQ)</li><li>AI/ML model integration</li><li>Security, compliance, or regulatory exposure</li></ul>Job Type: Full-timePay: Rs250,000.00 - Rs350,000.00 per monthWork Location: In person

Senior Backend Engineer

Confiz

<div>We at Confiz are hiring an Principal Backend Engineer with strong expertise in backend technologies, system architecture, and performance optimization. Join our team to design and build scalable, secure, and high-performing backend systems that power exceptional digital experiences for global enterprises..
Responsibilities
<ul><li>Own microservices in NestJS (TypeScript): define module boundaries, version APIs, and ship resilient, well-tested services.</li>
<li>Design internal communication: implement REST/gRPC/event-driven patterns (e.g., request/response, pub/sub), handle retries, timeouts, backoff, and circuit breakers.</li>
<li>Implement secure JWT auth: access/refresh lifecycles, rotation, audience/issuer validation, revocation/blacklisting, and token storage best practices.</li>
<li>Deliver payment integrations: integrate with gateways (e.g., Stripe/Adyen/Braintree), implement idempotent operations, handle captures/refunds/disputes, and reconcile via signed webhooks.</li>
<li>Build and consume webhooks: define payload contracts, verify signatures/HMAC, ensure idempotency, and implement robust retry and DLQ strategies.</li>
<li>Enable real-time features with WebSockets: use NestJS Gateways/Socket.IO or ws for presence, notifications, and fan-out at scale; secure and rate-limit connections.</li>
<li>Use Redis/Valkey effectively: design cache keys/TTLs, apply cache-aside/write-through, implement distributed locks, queues/streams, pub/sub, and mitigate hot keys.</li>
<li>Containerize and run locally: craft efficient multi-stage Docker builds, add healthchecks, and orchestrate multi-service dev stacks with docker-compose.</li>
<li>Quality &amp; reliability: write unit/integration/e2e tests (Jest/Supertest), add schema validation (class-validator/OpenAPI), and instrument with logs/metrics/traces.</li>
<li>Collaborate across teams: review PRs, write concise design docs, and partner with product, frontend, and data to deliver measurable outcomes.</li>
</ul>
Requirements
<ul><li>5+ years building backend systems; 5+ years NestJS + TypeScript in production.</li>
<li>Strong Docker and docker-compose skills (multi-stage builds, image slimming, healthchecks).</li>
<li>Solid microservice design: domain boundaries, API versioning, idempotency, saga/choreography, and eventual consistency (outbox/inbox).</li>
<li>Hands-on JWT implementation in distributed systems.</li>
<li>Demonstrated payment experience (idempotency keys, reconciliation jobs) and webhooks (HMAC/signatures, replay protection, retries).</li>
<li>Built and scaled WebSockets features in production.</li>
<li>Proficiency with Redis/Valkey for caching and real-time patterns; strong SQL fundamentals (PostgreSQL/MySQL) and practical ORM experience (TypeORM/Prisma).</li>
<li>Testing mindset with meaningful coverage and CI checks; working knowledge of security best practices (OWASP, secrets management, least privilege).</li>
<li>Comfortable with telemetry (structured logs, metrics, tracing) and on-call ownership.</li>
<li>Kong Gateway (or similar API gateway) for routing, auth, rate limiting, and observability.</li>
<li>Kubernetes/Helm; service meshes (Istio/Linkerd).</li>
<li>Event platforms (NATS/Kafka/RabbitMQ) and streaming patterns.</li>
<li>GraphQL (Apollo/NestJS) including subscriptions.</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>

Principal Backend Engineer (NestJS / TypeScript / Microservices)

Key Responsibilities:<ul><li>Design and develop RESTful (and/or GraphQL) APIs and backend services</li><li>Build and maintain backend systems using modern backend frameworks (e.g., Django, FastAPI, Node.js frameworks, or similar)</li><li>Work with Docker and containerization for local development and deployments</li><li>Collaborate with frontend, product, and quality processes to deliver features</li><li>Integrate third-party services and APIs</li><li>Optimize application performance, security, and scalability</li><li>Participate in code reviews and mentor junior developers</li></ul>Required Skills &amp; Qualifications:<ul><li>3&ndash;5 years of professional backend development experience</li><li>Strong proficiency in at least one backend language (Python, Node.js, or similar)</li><li>Hands-on experience with one or more backend frameworks (Django, FastAPI, Express)</li><li>Experience with Docker and containerized applications</li><li>Exposure to at least one cloud platform (AWS, GCP, Azure, etc.)</li><li>Solid understanding of REST APIs, relational databases, and authentication/authorization mechanisms.</li><li>Familiarity with Git and collaborative development workflows</li></ul>Nice to Have:<ul><li>Experience with background jobs, task queues, or async processing</li><li>Knowledge of system design and scalable architectures</li><li>Experience working on multi-product or SaaS platforms</li></ul>Job Type: Full-timeWork Location: In person

Backend Engineer

Risk Associates Pty Ltd

Requirements<ul><li>Strong backend development experience</li><li>Expertise in API development, integration, and performance optimization</li><li>Solid understanding of software architecture &amp; clean code principles</li><li>.NET Core experience is a big plus!</li><li>Strong experience with relational databases: SQL Server, MySQL, PostgreSQL</li><li>Hands-on experience writing unit tests and integration tests to ensure code reliability and maintainability</li><li>3-4 years of relevent experience is required.</li></ul>What we Offer:<ul><li>Competitive salary and benefits package.</li><li>Opportunities for professional development and advancement.</li><li>A dynamic and inclusive work environment.</li></ul>Apply at: career@riskassociates.comJob Type: Full-timeWork Location: In person

SSE / SE - Backend

VIDIZMO LLC

<div>We're seeking passionate, driven, and self-motivated individuals to join our team. If you're eager to grow in a dynamic environment and be part of a company that&rsquo;s at the forefront of AI innovation, this is your chance to hit the ground running. 
VIDIZMO is a USA-based technology company headquartered in Tysons, Virginia, and a Microsoft Solutions Partner in Data &amp; AI, Infrastructure, and Digital &amp; App Innovation. Offering a AI-Powered Intelligence Hub, we empower Fortune 500 companies, large enterprises, governments, and the public sector to securely manage, analyze, and govern their data with complete control and compliance. 
Our Multimodal AI Data Intelligence Platform leverages Large Language Models (LLMs) and RAG (Retrieval-Augmented Generation) to deliver powerful capabilities such as auto-tagging, redaction, content summarization, OCR, translation, subtitle creation, object detection and tracking, content search, sentiment and emotion analysis, topic extraction, document classification, and facial attribute detection. 
Role Overview

As a Full Stack Engineer, you will design, develop, and maintain both front-end and back-end components of our video streaming and processing platforms. You will collaborate closely with product managers, UI/UX designers, and other engineers to deliver seamless, scalable, and secure user experiences. 
Key Responsibilities
<ul>
<li>Design and build end-to-end web applications using .NET (C#, ASP.NET Core) for the backend and Angular for the frontend.</li>
<li>Develop and maintain RESTful APIs to power web and mobile applications.</li>
<li>Implement front-end components, ensuring responsiveness, usability, and optimal performance.</li>
<li>Enhance and optimize back-end processing pipelines for scalability and efficiency.</li>
<li>Work with cloud platforms (Azure/AWS) for deployments, storage, and integrations.</li>
<li>Ensure applications are secure, elastic, and capable of handling millions of concurrent users.</li>
<li>Write clean, maintainable, and testable code; conduct unit and integration testing.</li>
<li>Participate in peer code reviews to ensure code quality and consistency.</li>
<li>Collaborate with cross-functional teams in an Agile/SCRUM environment.</li>
<li>Stay updated with emerging technologies and propose improvements to existing systems.</li></ul> 


Required Skills &amp; Experience
<ul>
<li>Minimum 3 years of relevant experience in full stack or backend development.</li>
<li>Strong proficiency in .NET / ASP.NET Core and C#.</li>
<li>Hands-on experience with Angular (latest versions) and TypeScript.</li>
<li>Solid understanding of Web API design, RESTful architecture, and middleware development.</li>
<li>Experience in building scalable, distributed systems and implementing design patterns.</li>
<li>Proficient in SQL databases (SQL Server, PostgreSQL, etc.).</li>
<li>Familiarity with cloud services (Azure/AWS/Google Cloud).</li>
<li>Strong problem-solving and analytical skills.</li>
<li>Excellent communication and collaboration skills.</li></ul> 


Preferred Skills
<ul>
<li>Experience with SignalR, gRPC, or WebSockets.</li>
<li>Exposure to video streaming technologies, encoders/decoders, or multimedia processing.</li>
<li>Familiarity with CI/CD pipelines, Docker, or Kubernetes.</li>
<li>Experience with system-level programming (multi-threading, sockets, distributed systems).</li>
<li>Knowledge of AI/ML integrations for video/audio analysis is a plus.</li></ul> 


Qualifications
<ul>
<li>Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science or a related field.</li>
<li>Independent, proactive, and go-getter attitude.</li>
<li>Proficient in written and verbal English communication.</li>
<li>Legally authorized to work in the relevant location.</li></ul> 


Essential Skills:

The ideal candidate demonstrates strong business acumen, can translate objectives into impactful solutions, and is proficient in leveraging AI tools&mdash;including mandatory use of platforms like ChatGPT&mdash;to enhance efficiency. An ownership mindset and the ability to drive outcomes with minimal task-level direction are essential. 
Benefits: Health Insurance (OPD/IPD), Separate Maternity Cover, Leave encashment, Car Support Program, Referral Bonus, EOBI, Bi-Annual Increment. Provident Fund, Career Growth, Bonus 
Multiple Locations: 
USA, Pakistan, India, UAE, Australia, Canada (benefits vary based on location)</div>

Senior .NET & Angular Developer

Lead Full Stack (Angular & .Net) Engineer

Explore 519+ Back end engineer in Karachi Pakistan this January. Find roles across top companies and apply now to boost your career.