Java & Python Developer with AWS, shell, Langchain or Sierra framework | Racedog Technologies | NYC

RaceDog Technologies; New York (NY); On-site; USD 165,000 - 276,000; Full time

Job summary

RaceDog Technologies in New York City is seeking a Senior Java & Python Developer with 15+ years of experience to own backend services and cloud/integration work. You will craft robust microservices, automate AWS pipelines, and embed AI frameworks like LangChain or Sierra into enterprise apps.

You will design RESTful and gRPC services with Java (Spring Boot) and Python (FastAPI/Django), automate shell scripts, and deploy containerized workloads on AWS.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, IT, or related field.
• Minimum 15+ years of professional software engineering experience, with enterprise Java and Python.
• Expert-level Java (Spring Boot) and Python (FastAPI/Django) microservices.
• Extensive AWS experience (Lambda, ECS, EKS, S3, RDS).
• Shell scripting (Bash/Shell) for automation.
• Experience with LangChain, LlamaIndex, or Sierra frameworks.
• Strong problem-solving, architecture, and cross-functional communication.

Responsibilities

• Design, develop, test, and deploy enterprise-grade distributed microservices in Java and Python.
• Build and optimize cloud deployment pipelines and automation scripts.
• Integrate generative AI frameworks and LLM orchestration into apps.
• Develop secure RESTful APIs and asynchronous messaging pipelines.
• Deploy and manage cloud-native architectures on AWS (ECS, EKS, Lambda, S3, RDS).
• Collaborate with data science, DevOps, and product teams to improve performance and security.
• Write unit and integration tests; maintain CI/CD quality with automated pipelines.
• Troubleshoot performance, memory, and concurrency issues under load.

Skills

Java

Python

Spring Boot

FastAPI/Django/Flask

AWS

Shell scripting

LangChain/Sierra

RESTful/gRPC

Microservices

CI/CD

Education

Bachelor’s degree in Computer Science or related field

Tools

LangChain

LlamaIndex

Sierra framework

Terraform

Kubernetes

Job description

Position Summary:

Racedog Technologies is actively seeking an elite, highly proficient Senior Java & Python Developer with 15+ years of software engineering experience to join our client team in New York City (NYC) on an onsite contract basis. In this critical enterprise backend and AI-integrated software engineering role, you will be responsible for building robust distributed microservices, automating cloud infrastructure workflows in AWS, and integrating advanced generative AI frameworks such as LangChain or Sierra. You will leverage your deep practical expertise in Java, Python, shell scripting, cloud architecture, and LLM orchestration to deliver high-performance enterprise applications. This opportunity requires a master software engineer with exceptional technical depth and enterprise delivery experience in NYC.

Detailed Job Description:

As a Java & Python Developer supporting client projects in NYC via Racedog Technologies, you will take full technical ownership of backend service development, cloud deployment pipelines, and AI-powered application integrations. Your day-to-day responsibilities include designing scalable RESTful and gRPC microservices using Java (Spring Boot) and Python (FastAPI/Django), writing advanced shell automation scripts, and deploying containerized workloads onto AWS cloud infrastructure. You will integrate modern generative AI frameworks like LangChain or Sierra to embed conversational intelligence into enterprise workflows. Furthermore, you will collaborate closely with data science teams, DevOps engineers, and product managers to optimize application performance, ensure security compliance, and drive agile delivery.

Key Responsibilities:

• Design, develop, test, and deploy enterprise-grade distributed microservices and backend applications using Java and Python.
• Implement advanced cloud infrastructure automation workflows and deployment scripts using shell scripting (Bash/Zsh).
• Integrate generative AI frameworks and LLM orchestration platforms such as LangChain and Sierra into enterprise applications.
• Build and maintain secure RESTful APIs, asynchronous event-driven messaging pipelines, and database connections.
• Deploy, manage, and optimize cloud-native application architectures across AWS services (ECS, EKS, Lambda, S3, RDS, IAM).
• Collaborate with cross-functional data science, engineering, and DevOps teams to deliver robust AI-powered solutions.
• Write comprehensive unit tests, integration test suites, and maintain high code quality standards via CI/CD pipelines.
• Troubleshoot production system performance bottlenecks, memory leaks, and concurrency issues under high loads.

Required Qualifications & Skills:

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related technical discipline.
• Minimum of 15+ years of professional software engineering experience, with extensive expertise in enterprise Java and Python development.
• Expert-level practical proficiency in Java (Spring Boot) and Python (FastAPI, Flask, or Django) microservices architecture.
• Extensive hands-on experience with AWS cloud infrastructure services (Lambda, ECS, EKS, S3, RDS, CloudWatch).
• Strong practical proficiency in shell scripting (Bash/Shell) for automation and system administration.
• Proven experience integrating generative AI frameworks, specifically LangChain, LlamaIndex, or Sierra framework.
• Exceptional analytical, problem-solving, architectural design, and cross-functional communication capabilities.
• Mandatory eligibility to work in the United States and availability for onsite work in New York City (NYC).

Nice-to-Have Skills:

• Advanced postgraduate degrees in Computer Science or Software Engineering.
• Prior professional experience within high-frequency financial services, fintech, or enterprise SaaS platforms in NYC.
• Experience with vector databases (Pinecone, Milvus, Qdrant) and Retrieval-Augmented Generation (RAG) pipelines.
• Strong background in infrastructure-as-code (Terraform) and Kubernetes container orchestration.
• AWS Certified Solutions Architect or Developer professional certifications.

Application Information:

• Recruiter: Racedog Technologies Recruitment Team
• Contact Name: Raju Varma (Account Manager / Sr. Recruiter)
• Email: [e-mail]
• Phone:
• Application URL:
• Salary/Rate: Market Competitive / Standard Consulting Rate
• Deadline: Open until filled
• Notice Period: Immediate to 30 Days
• Contract Duration: Long-Term Contract / On-Site (New York City, NY)

Recruitment Pro Tip:

When applying for this Java & Python Developer position via Racedog Technologies, ensure your resume highlights your 15+ years of backend engineering, AWS cloud expertise, and experience with LangChain or Sierra frameworks.