Java & Python Developer with AWS, LangChain / Sierra | Racedog Technologies | New York, NY

RaceDog Technologies; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

RaceDog Technologies in New York, NY seeks a seasoned Java & Python Developer with AWS and LangChain/Sierra expertise to build high-performance enterprise applications. You will architect Java Spring Boot microservices, develop Python AI pipelines, and integrate cloud-native AWS architectures onsite in NYC.

The candidate should bring 15+ years of experience, deep Java and Python mastery, and strong AI framework knowledge.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related discipline.
• 15+ years of professional software engineering experience in large-scale enterprise environments.
• Deep proficiency in Java (Spring Boot, Hibernate) and Python development.
• Extensive hands-on AWS core services, Lambda, ECS/EKS, and cloud security.
• Proven experience with AI/NLP frameworks such as LangChain, Sierra, or LLM integration APIs.
• Outstanding analytical problem-solving, architectural vision, and cross-functional communication.
• Mandatory residency/work authorization: onsite in New York, NY.

Responsibilities

• Architect, design, and develop complex enterprise applications using a polyglot stack (Java and Python).
• Build and deploy scalable microservices on AWS (serverless, containerized).
• Integrate LangChain, Sierra, or similar LLM orchestration frameworks.
• Design high-throughput data processing pipelines and data stores (SQL/NoSQL).
• Collaborate with enterprise architects, security teams, and product managers.
• Ensure code quality with reviews and automated testing across Java and Python.
• Implement security baselines, IAM roles, encryption, and API gateways on AWS.
• Perform performance profiling and capacity tuning for high-load systems.
• Mentor junior engineers on polyglot architecture and best practices.
• Create technical specs, diagrams, and deployment runbooks.

Skills

Java (Spring Boot)

Python

AWS

LangChain/Sierra

Enterprise architecture

15+ years experience

Education

Bachelor’s degree in CS or related

Tools

LangChain

Sierra

AWS Lambda

ECS

EKS

Kafka

Job description

Position Summary

We are seeking an exceptionally skilled and experienced Java & Python Developer with AWS, LangChain, or Sierra framework expertise to join our enterprise engineering team on a full-time onsite basis in New York City, via Racedog Technologies. In this critical polyglot software engineering role, you will be responsible for building high-performance hybrid applications combining Java enterprise microservices, Python AI pipelines, and cloud-native AWS architectures. The ideal candidate will bring 15+ years of professional software development experience, deep mastery in Java, Python, AWS, and modern conversational AI frameworks.

Detailed Job Description

As a Java & Python Developer (AWS, LangChain/Sierra) in New York, NY via Racedog Technologies, you will serve as a principal technical authority responsible for delivering mission-critical enterprise solutions at scale. Your daily responsibilities will encompass architecting Java Spring Boot microservices, developing Python-based AI and data pipelines, integrating AWS cloud infrastructure, and leveraging advanced frameworks like LangChain or Sierra. You will collaborate closely with enterprise architects, data teams, and product managers.

Key Responsibilities

• Architect, design, and develop complex enterprise applications leveraging a polyglot stack of Java (Spring Boot) and Python.
• Build and deploy scalable, serverless, and containerized microservices architectures on Amazon Web Services (AWS).
• Integrate advanced conversational AI and agentic frameworks such as LangChain, Sierra, or custom LLM orchestration platforms.
• Design high-throughput data processing pipelines, event-driven streaming, and relational/NoSQL database persistence layers.
• Collaborate proactively with enterprise architects, security teams, and product managers during agile delivery cycles.
• Ensure rigorous code quality standards, peer code reviews, and automated testing suites across Java and Python codebases.
• Implement enterprise security baselines, IAM roles, encryption protocols, and API security gateways on AWS.
• Conduct performance profiling, bottleneck triage, and scalability tuning for high-load production systems.
• Mentor junior and mid-level software engineers, providing technical guidance on polyglot architecture and best practices.
• Author comprehensive technical specifications, system architecture diagrams, and deployment runbooks.

Required Qualifications & Skills

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related discipline.
• Minimum of 15+ years of professional software engineering experience in large-scale enterprise environments.
• Deep technical proficiency in Java (Spring Boot, Hibernate) and Python development.
• Extensive hands‑on expertise with Amazon Web Services (AWS) core services, Lambda, ECS/EKS, and cloud security.
• Proven practical experience utilizing AI/NLP frameworks such as LangChain, Sierra framework, or LLM integration APIs.
• Outstanding analytical problem‑solving, architectural vision, and cross‑functional communication capabilities.
• Mandatory residency/work authorization: Ability to operate fully onsite in New York, NY.

Nice-to-Have Skills

• Professional certifications such as AWS Certified Solutions Architect Professional or AWS Certified DevOps Engineer.
• Prior professional experience within Wall Street financial institutions, investment banking, or premier fintech enterprises in NYC.
• Familiarity with enterprise event streaming using Apache Kafka.
• Immediate availability for onsite mobilization in New York City.

Application Information

• Recruiter: Racedog Technologies / Technical Staffing Division
• Contact Name: Raju Varma (Account Manager / Sr. Recruiter)
• Email: [e-mail]
• Phone:
• Salary/Rate: Competitive market rate
• Deadline: Immediate
• Notice Period: Immediate to 30 Days
• Contract Duration: Full Time / Permanent