Senior Software Engineer (Backend)

Title: Senior Software Engineer (Backend)
Job Type: Contract
Contract Length: 4 Months
Pay Range: $100/hr – $125/hr
Start Date: ASAP
Location: Hybrid - San Jose, CA

About the Opportunity:

Our client, a leader in FinTech and cloud-based payment solutions, is looking for a skilled Senior Software Engineer (Backend) to join their team for a 4-month engagement. This project involves enhancing capabilities for card issuing and processing within Accounts Payables and Accounts Receivables platforms to grow and scale card payments. This is a high-impact role that requires a self-motivated professional who can hit the ground running and deliver results quickly.

Key Responsibilities & Deliverables:

This role is focused on the successful completion of specific tasks and deliverables. Your responsibilities will include:

• Designing, building, and supporting highly reliable, low-latency payment systems and REST APIs.
• Developing robust integrations with third-party payment providers leveraging messaging queues and events.
• Implementing secure, compliant, and fraud-resistant payment solutions, with a strong focus on security and encryption.
• Automating deployment, testing, and infrastructure management using Infrastructure-as-Code (IaC) tools and CI/CD pipelines.
• Diagnosing and troubleshooting issues quickly in live production environments, taking full ownership of critical systems.

Required Skills & Experience:

We are looking for someone with a proven track record of successful contract engagements. The ideal candidate will have:

• 5+ years of experience designing, developing, and operating distributed systems and microservices.
• Deep expertise in Java, Spring Boot, and AWS cloud services (EC2, RDS, Lambda, API Gateway), as well as expertise in SQL/NoSQL databases. This isn't a learning role—you need to be a subject matter expert.
• Demonstrated ability to work autonomously and manage your own time effectively to meet project goals.
• Experience with scalable architectures leveraging containers (Kubernetes), messaging, event streaming, and CI/CD pipelines.
• Strong communication skills to provide clear and concise status updates to the project team, and the ability to mentor junior engineers.

W2 only (No C2C or 1099 contractors)

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