Senior Software Engineer

Stem IT; New York (NY); Hybrid; USD 140,000 - 180,000; Full time

Job summary

Stem IT in Midtown Manhattan is seeking a Senior Software Engineer to join a fast-paced fintech team, delivering core solutions and scalable applications. The role requires strong Java/Spring, OOP, microservices, and containerization skills.

Three days per week onsite; knowledge of AI tools and cloud deployment is a plus. A Bachelor's degree in computer science is required; a Master’s is preferred for advanced roles.

Qualifications

• Bachelor’s in computer science or related field required
• Master’s/PhD in computer science or related field preferred
• Experience with Java ecosystem and OOP design patterns
• Experience with containerization and deployment tools
• Experience with AI tools like Claude, Cursor, Gemini or similar

Responsibilities

• Join a fast-paced fintech team to build scalable applications.
• Deliver core solutions with Java/Spring and microservices.
• Collaborate on AI-enabled development using agentic tools.

Skills

Java / Java ecosystem

OOP principles

Microservices

Containerization

AI tools like Claude Cursor Gemini

SQL / NoSQL databases

Education

Bachelor's degree in CS or related field

Master’s degree in CS or related field

Tools

Spring Framework

AWS

Docker / Kubernetes

CI/CD tools

Python / TypeScript

Job description

Series-D Fintech startup that offers financial wellness solutions for underserved customers, is looking to bring on a Senior Software Engineer in Midtown Manhattan(3 days onsite a week). This person will join a fast-paced team, assisting in building out scalable applications, and delivering core solutions. The ideal candidate will be well versed with: Java/Spring, OOP programming patterns, microservices, containerization & deployment tools, and delivered Agentic AI solutions.

Ideal Skills & Experience

• Experience with Java and Java ecosystem (open to C#/.Net background)
• Background with OOP principles, design/programming patterns
• Experience with relational and ideally non-relational DB’s
• Experience with containerization and deployment tools
• Background with AI tools like Claude, Cursor, Gemini or similar
• Bachelor’s in computer science or related field required

Desired Skills & Experience:

• Master’s/PHD in computer science or a related field
• Experience building agentic AI agents to automate development pipeline
• Experience working in FinTech or adjacent field
• Experience programming with Python, Typescript, and/or Next.js
• Experience with AWS serverless tools(EC2, Lambdas, EKS, Fargate, etc