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Senior Backend Developer - C# and .NET 10 (Remote, Contractual), PK [AS239]

Posted about 1 month ago

RemotePakistanSE
About Smart Working
At Smart Working, we believe your job should not only look right on paper but also feel right every day. This isn’t just another remote opportunity - it’s about finding where you truly belong, no matter where you are. From day one, you’re welcomed into a genuine community that values your growth and well-being.

Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you’re empowered to grow personally and professionally.

Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world.

About the Role
We are looking for a Senior Backend Developer to join a collaborative product engineering team building and scaling a modern accommodation booking platform used by corporate travellers worldwide.

This role is focused on developing and evolving scalable backend services and APIs using C# and .NET 10, helping power critical booking, quoting, integration, and search functionality across the platform.

You will work closely with Product Managers, QA Engineers, Data teams, and other Engineers to deliver reliable, maintainable, and high-performing backend systems. The role involves a strong focus on API integrations, observability, CI/CD, and backend reliability in a fast-paced product environment.
 
The team is currently focused on scaling and enhancing an internal accommodation booking engine, including:
  • Accommodation search optimisation and advanced filtering
  • AI-enhanced quoting and booking experiences
  • Real-time integrations with third-party systems for booking management and synchronisation
  • Platform scalability, observability, and reliability improvements
  • This is a collaborative, backend-focused role suited to someone who enjoys solving complex integration and API challenges while contributing to engineering quality and platform evolution.
### Responsibilities
  • Design, develop, and maintain scalable backend services and APIs using C# and .NET 10
  • Build and maintain secure, reliable integrations with third-party systems and external APIs
  • Define and implement resilient and fault-tolerant API communication patterns
  • Troubleshoot and resolve complex backend and API issues, including connectivity and data consistency problems
  • Ensure systems are observability-first through effective logging, metrics, monitoring, and alerting
  • Create and maintain clear API integration documentation for internal and external stakeholders
  • Collaborate closely with Product Managers, QA Engineers, Designers, and Data teams to deliver high-quality features
  • Champion engineering best practices across testing, CI/CD, secure coding, and maintainability
  • Mentor junior developers and contribute to overall engineering excellence
  • Support ongoing platform scalability, integration, and performance improvement initiatives
  • Contribute to the evolution of the company’s API platform and backend architecture
  • ### Requirements
  • Strong proficiency in C# and .NET 10, with experience building scalable and maintainable backend systems
  • Strong experience designing, developing, and maintaining production APIs and backend services
  • Experience diagnosing and resolving complex backend and API issues
  • Experience working with CI/CD pipelines and deployment automation
  • Strong understanding of API design, backend reliability, and maintainable system architecture
  • Strong interpersonal and collaboration skills across cross-functional teams
  • Experience writing clear and maintainable API integration documentation
  • Pragmatic problem-solving mindset with strong attention to reliability and simplicity
  • Commitment to delivering high-quality, performant, and supportable solutions
  • Ability to work effectively in a collaborative, fast-moving engineering environment
  • ### Nice to Have
  • Experience with Azure Functions and serverless architectures
  • Experience working with multi-tenant or multi-organisation systems at scale
  • Familiarity with multicurrency implementations and internationalisation (i18n)
  • Familiarity with OpenAPI 3.0 / 3.1 standards
  • Experience using AI-assisted development tools such as Claude Code
  • Knowledge of Infrastructure-as-Code tools such as Terraform
  • Previous experience working on booking, marketplace, or travel-related platforms
  • At Smart Working, you’ll never be just another remote hire.

    Be a Smart Worker - valued, empowered, and part of a culture that celebrates integrity, excellence, and ambition.

    If that sounds like your kind of place, we’d love to hear your story. 

    Job details
    Workplace
    Remote
    Location
    Pakistan
    Experience
    SE
    Smart Working Solutions logo
    Smart Working Solutions
    View company page

    Smart Working is Tech Talent as a Service - building high-performance global engineering teams without the friction, risk, or overhead of legacy hiring models. A low-churn model that ensures you get exactly the right talent you need - on time, every time... with long-term support. 🌍 We hire exceptional engineers locally and offer stable, remote, and impactful roles helping build meaningful technology. Our fully-embedded teams help 60+ clients in the UK and USA build serious products and solutions. 🔁 Long-term support - we manage talent across the full lifecycle, from vetting to payroll, so you can focus on what matters most: building your business. ✨ What makes Smart Working different: ✅ Top 1% rigorously vetted global talent ✅ Fully embedded, culturally aligned teams working your hours ✅ Full support across performance, payroll, compliance, and HR operations ✅ Continuous AI training - future-proofed, super-efficient teams We don’t just fill seats. We build great tech teams that last - and deliver.

    Employees
    576
    Industry
    IT Services and IT Consulting
    Headquarters
    London
    Specialties
    Software Development Custom Software Solutions Product Engineering End-to-End Software Delivery Scalable Application Development Cloud-Native Development Web Application Development Backend & API Development Frontend Engineering Full-Stack Development Technology Consulting Digital Product Development System Architecture & Design Platform Engineering Agile Software Delivery DevOps & CI/CD Enablement Quality Engineering & Automation Data-Driven Applications Secure & Compliant Software Systems Long-Term Technology Partnerships

    Key team members

    Geetika Nandwani

    Geetika Nandwani

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