Backend Engineer SadaPay

About SadaPay

SadaPay is transforming financial services in Pakistan with a digital-first experience that makes managing money simple transparent and hassle-free. With over three-quarters of the population still unbanked we believe financial services need a radical shift. With SadaPay all you need is a CNIC a phone number and a smartphone to get started; no paperwork no long waits. Our 2 million users have left behind their worst banking frustrations no hidden fees free local transfers and a payment experience thats actually enjoyable. Pair that with friendly customer service and a vibrant debit card and suddenly finance doesnt just work it feels fun!

Why is this role important

At SadaPay we arent just building CRUD apps; we are building the financial ledger for millions of Pakistanis. As a Backend Engineer you will solve high-stakes distributed systems problems: handling thousands of concurrent transactions without race conditions designing idempotent APIs for unreliable networks and ensuring 99.99% availability during peak traffic.

Your work will directly impact how millions of users move manage and trust their money every day.

As a Sadanaut you will:

• Design and build scalable backend systems: Build APIs microservices and event-driven workflows that power our mobile and web apps at massive scale.
  
• Ensure reliability and performance: Optimize system architecture manage concurrency and build resilient services that handle rapid growth and real-world financial use cases.
  
• Collaborate cross-functionally: Work closely with product managers designers and fellow engineers to define develop and ship features that deliver real value.
  
• Write clean maintainable testable code: Follow engineering best practices including clean architecture documentation and meaningful commit hygiene.
  
• Own deployment and monitoring: Take responsibility for services from development to production - instrumentation observability incident response and performance tuning.
  
• Continuously improve: Stay updated on backend innovations tooling patterns and best practices to ensure our systems stay modern efficient and sec

Our Tech Stack (What You Will Work With):

• Languages: Kotlin Java (17/21)
  
• Databases: PostgreSQL Redis NoSQL (where applicable)
  
• Framework: Spring
  
• Messaging: Kafka
  
• Infrastructure: AWS Kubernetes Docker Terraform
  
• Version Control & CI/CD: Git automated pipelines
  

Note: Expertise in Java or Kotlin is required for this role.

Experience with Go/ is a plus but not a substitute for deep Java/Kotlin proficiency.

What it takes to become a Sadanaut:

• Production-Grade Experience
  
  • 35 years building and shipping backend systems in Java or Kotlin
    
  • Hands-on exposure to high-traffic distributed production environments
    
• Strong Engineering Fundamentals
  
  • Solid understanding of algorithms data structures concurrency and system design
    
  • Familiarity with distributed systems concepts (idempotency retries eventual consistency)
    
• Database Expertise
  
  • Strong SQL proficiency beyond ORMs
    
  • Ability to debug slow queries using indexes query plans and profiling tools
    
• Event-Driven & Microservices Experience
  
  • Experience with REST APIs Kafka and asynchronous messaging patterns
    
• Quality-Focused Engineering
  
  • Commitment to clean architecture testing maintainability and documentation
    
• Nice to have
  
  • Experience with Go or (as secondary languages)
    
  • Familiarity with cloud platforms (AWS/GCP/Azure)
    
  • Exposure to Docker Kubernetes or Infrastructure-as-Code (Terraform)
    
  • Understanding of CI/CD pipelines and DevOps practices

Perks of being at SadaPay:

• USD-Denominated Salary: At SadaPay all salaries are pegged to USD to help protect team members from inflation. If the dollar depreciates against the PKR youll always receive a minimum payment equal to your PKR salary.
  
• Remote-First Work Culture: Were a remote-first company allowing our team to work from the office from home or anywhere they choose. Teams may coordinate internally to determine if occasional office presence is needed.
  
• Flexible Leave Policy: We offer a flexible leave policy to support a sustainable work-life balance. We trust our colleagues to manage their work and leave responsibly.
  
• Comprehensive Insurance Coverage: Every Sadanaut regardless of grade receives Life and Medical Insurance (covering both outpatient and inpatient care) including immediate family and parents.
  
• Provident Fund Contributions: Provident fund contributions are provided to all team members to support their financial growth.
  
• Technology and Resources: Each colleague receives a laptop and additional resources (relevant to their role) to ensure they can work efficiently and comfortably.

Equal Opportunity Provider:

At SadaPay we are committed to fostering an inclusive environment where everyone feels welcome and valued. We strive to make every Sadanaut feel comfortable and respected in the workplace. Discrimination of any kind has no place here; instead we promote a culture of respect and mutual support among colleagues. Our recruitment process is built on fairness and equality for all irrespective of race age gender color religion social status disability or ethnicity.