Software Engineer

DeWinter Group; Foster City (CA); On-site; USD 130,872 - 137,760; Part time

Job summary

DeWinter Group is seeking a Software Engineer (Backend Services & Infrastructure) in Foster City, CA, for a 6-month contract. The role involves migrating data systems and designing resilient backend services. Candidates should have 7+ years in backend development, particularly with AWS and microservices.

This position focuses on critical infrastructure migration and requires proficiency in Kotlin, PostgreSQL, and cloud technologies. Strong problem-solving skills and experience with large-scale deployments are essential.

Qualifications

• 7+ years of relevant experience in backend development.
• Experience with large-scale backend services/platforms.
• Deep knowledge of AWS including IAM and DynamoDB.

Responsibilities

• Migrate data infrastructure from PostgreSQL to DynamoDB.
• Design and implement highly resilient systems using Terraform.
• Contribute to architecture and long-term technology initiatives.

Skills

AWS

Kotlin

PostgreSQL

Microservices

Docker

Kubernetes

Problem-Solving

Education

BS/MS in Computer Science or similar degree

Tools

Terraform

Job description

Title: Software Engineer (Backend Services & Infrastructure)

Job Type: Contract

Contract Length: 6 months

Pay Range: $95 - $100/hr

Start Date: 6/29

Location: Onsite - Foster City, CA

About the Opportunity

Our client, a leader in the Autonomous Vehicle and Robotics industry, is looking for a skilled Software Engineer to join their team for a 6-month engagement. This high-impact project is focused on the critical migration and scaling of their core data infrastructure. You will be responsible for migrating existing systems from PostgreSQL to DynamoDB, sharding databases, and designing highly available, resilient backend services. This role requires deep expertise in AWS cloud infrastructure and modern microservices development (Kotlin/Python).

Key Responsibilities & Deliverables

• Data Migration & Sharding: Migrate existing data infrastructure, specifically from PostgreSQL to DynamoDB (DDB), and split single databases into multiple sharded databases.
• System Design & Deployment: Design, deploy (using Terraform), and implement highly available and resilient systems, adopting best practices to avoid single points of failure.
• Architecture Contribution: Contribute to long-term architecture, technology initiatives, and the technical roadmap for backend platforms.
• Microservices Development: Develop and adapt software on Kotlin and Python microservices.
• Cross-Functional Delivery: Work cross-functionally with diverse engineering teams, Product, and Program Management for the successful delivery of solutions.

Required Skills & Experience

• 7+ years of relevant experience (or BS/MS in Computer Science or similar degree).
• Experience successfully shipping large-scale backend services/platforms to production.
• Deep experience with AWS, including IAM, DynamoDB (DDB), and PostgreSQL, for multi-region deployments and high availability.
• Experience running production services using cloud infrastructure such as Kubernetes and Docker.
• Proficiency with Kotlin, SpringBoot, REST API design patterns, database technologies, caching mechanisms, and performance optimizing techniques.
• Excellent problem-solving and debugging skills.

Bonus Qualifications

• Experience in transportation, robotics, logistics, or autonomous vehicles.
• Experience with protocol buffers (protobufs) and gRPC.
• Experience with Observability frameworks and tools like Open Telemetry.
• Experience with Claude Code or other LLM-based coding tools.

W2 only (No C2C or 1099 contractors)

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