Lead Software Architect - High-Transaction Systems

TW Group LLC

$120K — $160K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8+ years of backend development experience, specializing in Java (Spring Boot, JDK 11+)
  • Proven history of architecting scalable systems for high-throughput environments
  • Strong expertise with Kubernetes, containerization, and cloud-native deployments (GCP, AWS, or Azure)
  • Solid understanding of microservice architectures and event-driven systems
  • Familiarity with full-stack development and modern front-end frameworks is advantageous
  • Expertise in scaling distributed systems, including load balancing and redundancy

Responsibilities

  • Architect and lead the design of scalable, high-availability microservices for payment and transaction systems
  • Collaborate with engineering leads and DevOps teams to implement containerized solutions
  • Ensure robust performance and fault tolerance in high-transaction environments
  • Drive architectural decisions for backend performance and user experience
  • Mentor teams and enforce software engineering best practices
  • Align system architecture with business goals through stakeholder collaboration

Benefits

  • Opportunity to build mission-critical systems for millions of users
  • Lead architectural decisions in a rapidly scaling company
  • Collaborative environment with a passionate engineering team
  • Flexible working arrangements including onsite, hybrid, or remote options
  • Performance-based bonus opportunities
Full Job Description
About the Role

We're seeking a Lead Software Architect with deep expertise in backend development and building scalable, high-performance systems. This role is perfect for someone who thrives in fast-paced, high-scale environments-where milliseconds matter-and can architect solutions capable of handling thousands of transactions per second with reliability and speed.

Key Responsibilities
  • Architect and lead the design of scalable, high-availability microservices for payment and transaction systems.
  • Collaborate with engineering leads and DevOps teams to implement containerized solutions using Kubernetes.
  • Ensure robust performance in high-transaction environments, optimizing systems for speed and fault tolerance.
  • Drive full-stack architectural decisions, balancing backend performance with seamless user experiences.
  • Mentor development teams and enforce software engineering best practices.
  • Partner with stakeholders across security, product, and infrastructure to align system architecture with business goals.

Technical Requirements
  • 8+ years of backend development experience with deep expertise in Java (Spring Boot, JDK 11+).
  • Proven track record of architecting and scaling systems in high-throughput environments (e.g., payment gateways, fintech, eCommerce).
  • Strong experience with Kubernetes, containerization, and cloud-native deployments (GCP, AWS, or Azure).
  • Solid understanding of microservice architectures, service mesh, and event-driven systems.
  • Familiarity with full-stack development-experience with modern front-end frameworks a plus.
  • Expertise in scaling distributed systems, managing load balancing, caching, and redundancy.

Nice to Have
  • Experience with PCI compliance or secure payment systems.
  • Knowledge of real-time monitoring and observability tools (Prometheus, Grafana, ELK).
  • Prior work in scale-up or startup environments.

Why Join Us
  • Build mission-critical systems used by millions.
  • Lead architectural decisions at a company scaling fast.
  • Work with a passionate, collaborative, high-caliber engineering team.
  • Onsite/Hybrid/Remote
  • Bonus based upon performance

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