Java Developer with Python.

Location: Englewood, CO.

Client: Standard & Poor’s

Rate: $80 – $84/hr

Inperson required (Inperson interview can be in Princeton, NJ or Englewood, CO based on candidate convenience)

Job Description: Senior Software Engineer (Java/Python)

We are seeking a highly skilled Senior Software Engineer with strong expertise in Java-based application development and complementary experience using Python for backend services and AI-driven integrations. The ideal candidate will design and implement robust, scalable, and high-performance systems within a distributed architecture.

Responsibilities

•     Design, develop, and maintain complex applications and microservices using Java (Spring Boot, Spring Cloud, Hibernate/JPA).

•     Build reliable, secure, and high-performance RESTful APIs and integrate them with databases, messaging systems (Kafka), and external services.

•     Contribute to system architecture design, performance tuning, scalability improvements, and API security (OAuth2).

•     Utilize Python for building automation tools, asynchronous APIs, data processing modules, and AI/ML-based integrations where applicable.

•     Collaborate across Java and Python teams to deliver end-to-end solutions involving cross-stack service integration.

•     Conduct thorough code reviews, develop comprehensive unit and integration tests, and implement CI/CD best practices using Docker and modern deployment pipelines.

•     Engage in performance analysis, profiling, and production debugging using observability tools.

•     Contribute to architectural discussions for cloud-native deployments and participate in Agile development ceremonies.

Must Have Skills

•     Strong Java Core skills with deep understanding of concurrency, multithreading, and distributed system design.

•     Proven experience with Spring Boot, Spring Cloud, Hibernate/JPA, and building REST-based microservices.

•     Proficiency in software design principles, object-oriented programming, and standard design patterns.

•     Experience with relational and NoSQL databases, data modeling, and SQL optimization.

•     Hands-on experience with Python for backend development, including RESTful API building and data processing scripts.

•     Familiarity with Kafka or equivalent event-driven messaging systems.

•     Strong experience with unit/integration testing and CI/CD workflows using Git, Docker, and containerized deployments.

•     Good understanding of API security, caching, and performance optimization strategies.

•     Excellent communication and teamwork skills.

Nice to Have Skills

•     Experience integrating Generative AI workflows or vector-based retrieval systems using Python (embeddings, prompt engineering).

•     Familiarity with async programming, multiprocessing, and memory management in Python.

•     Knowledge of UI development (React, HTML5, XML, CSS).

•     Understanding of AWS cloud services (EC2, ECS, S3, Lambda, Glue).

•     Exposure to observability platforms, logging and monitoring systems.

•     Knowledge of test-driven development (TDD) and Agile SDLC methodology.

•     Domain knowledge in Financial Services or Capital Markets.