Principal Staff Software Engineer

Staffingine LLC

St. Louis, Missouri, United StatesFull-timePosted Sep 15, 2026

About the role

Hiring: Staff/Principal Software Engineer – Edge, Backend & AI/ML Platforms

Location:

St. Louis, Missouri-US - 2 roles

FTE or Contract Exp: 10+ years | Hands-on IC with architectural ownership

Looking for strong experience in:

Java Spring Boot (APIs, microservices, event-driven systems)
Edge Computing / CDN-layer compute (Edge Workers, Lambda@Edge or equivalent)
Distributed Systems & System Design
Building features for ML inference pipelines (data normalization, feature stores, model serving)
AWS (compute, storage, networking, IAM)
JavaScript/TypeScript for edge runtimes
AI-assisted development (GitHub Copilot, LLM workflows, agentic coding tools)
Taking systems from 0 → 1 in ambiguous, fast-moving environments

Strong plus:

Identity / Trust / Security domain (JWT, PKI, OAuth, token verification)
Python, Databricks
Observability at scale

Interested? DM me or send your resume to shivam.singh@staffingine.com

Responsibilities

Architectural ownership of software solutions
Develop APIs and microservices using Java Spring Boot
Design distributed systems and system architecture
Build features for ML inference pipelines
Utilize AWS services for compute, storage, and networking
Implement edge computing solutions

Qualifications

10+ years of hands-on experience in software engineering
Strong experience with Java Spring Boot and microservices
Familiarity with edge computing and distributed systems
Experience with AI-assisted development tools

Skills mentioned

JavaSpring BootMicroservicesEvent-Driven ArchitectureDistributed SystemsSystem DesignAWSJavaScriptTypeScriptModel Serving

About Staffingine LLC

Staffingine LLC helps businesses hire skilled IT, engineering, healthcare, and professional talent faster through structured staffing delivery, recruiter alignment, and quality-focused talent matching. We support organizations with staff augmentation, recruitment, and workforce solutions designed to improve speed, quality, and hiring confidence

Staffing and Recruiting51-200 employeesQueens, NY , New York