Hourly Freelance Java Developer Jobs in Florida (NOW HIRING)

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Job Title

Senior Full-Stack Developer (Database-Focused)

Client

Confidential

Location

Lake Mary, FL 32746 (4 days hybrid)

Interview

Rounds 1-2: MS Teams video (may include coding assessment)

Round 3: In-person in Lake Mary office (may include white board session)

Senior Full-Stack Developer (Database-Focused) - Job Description/ Responsibilities

Job Responsibilities

•     Program well-designed, testable, and efficient code across front-end and back-end layers.

•     Execute full lifecycle software development: requirements, design, implementation, testing, deployment, and maintenance.

•     Design, develop, and optimize relational and NoSQL database schemas for OLTP and OLAP workloads.

•     Write high-quality SQL/PL code (stored procedures, functions, triggers, views) and reusable data access components.

•     Build and integrate RESTful APIs and microservices; ensure clean data contracts and reliable integrations.

•     Develop modern front-end features and components using frameworks like Angular or React; ensure accessibility and performance.

•     Conduct code/design reviews for both application and database components with focus on performance, security, and maintainability.

•     Create flowcharts, ER models, data flow diagrams, and comprehensive technical documentation.

•     Apply security and privacy principles: secure coding, RBAC, encryption, input validation, auditing, and least privilege.

•     Analyze, design, and develop unit/integration/end-to-end tests; implement test automation for APIs, UIs, and database code.

•     Develop verification plans, quality assurance procedures, and data validation/reconciliation checks.

•     Participate in deployments following change controls; manage schema migrations, release automation, and rollback strategies.

•     Troubleshoot, debug, and upgrade existing systems across the stack; ensure applications are reliable, scalable, and feature-complete.

•     Monitor and tune performance: query plans, indexing, partitioning; app profiling, caching, and CDN strategies.

•     Provide recommendations for continuous improvement in architecture, data models, code quality, and operational resilience.

•     Demonstrate teamwork, promote component reuse, mentor peers on best practices, and contribute to internal standards.

Required Skills/Experience

•     7+ years of full-stack development experience using languages/tools such as Java, Spring Boot, REST, JavaScript/TypeScript, Angular/React, CSS/HTML, Node.js, C#.

•     Expert-level database skills with major RDBMS (e.g., Oracle, SQL Server, PostgreSQL) and familiarity with NoSQL (e.g., MongoDB).

•     Advanced SQL and procedural extensions (PL/SQL, T-SQL), including complex query optimization, window functions, and CTEs.

•     Strong data modeling (conceptual/logical/physical), normalization/denormalization, and schema design for OLTP/OLAP.

•     Experience building and maintaining ETL/ELT pipelines (e.g., SSIS, Informatica, Talend, dbt) and orchestration (e.g., Airflow).

•     Knowledge of application frameworks, microservices, and containerization/cloud patterns (e.g., Docker, Kubernetes).

•     Ability to review test plans and test data; hands-on experience with CI/CD, automated testing, and migration tooling (e.g., Liquibase).

•     Cross-platform interoperability understanding (JDBC/ODBC, APIs, NT/Intranet), and use of multiple toolkits.

•     Strong grasp of security/privacy controls across the stack: secure coding, encryption, masking, auditing, and compliance fundamentals.

•     Teamwork, communication, and organization skills; ability to collaborate in fast-paced, cross-functional environments.

•     Bachelor’s degree in Computer Science, Engineering, Information Systems, or related discipline, or equivalent work experience.

Preferred Skills/Experience

Experience in the securities or financial services industry is preferred.

TALENT PROFILE

Required Skills/ Experience   

•     7+ years of full-stack software development experience

•     Exposure to data warehousing, data modeling and BI/reporting platforms.

•     Knowledge of streaming/integration technologies (e.g., Kafka), caching layers (e.g., Redis), and performance profiling tools.

•     Thorough knowledge of the software development cycle

•     Knowledge in application frameworks and containerization

•     Ability to conduct reviews of the test plan and test data

•     Knowledgeable about cross-platform interoperability (i.e., NT, Intranet), major tools in a toolkit for a specific platform and features of multiple toolkits

Preferred Skills/ Experience  

•     Experience in the securities or financial services industry is preferred

Required Software/ Technology 

•     Java, Spring Boot, REST, NoSQL

•     Angular, CSS, JSON, HTML, JavaScript

•     Oracle, SQL Server

•     JUnit, Cucumber

•     MQ, Kafka

•     Cloud (GCP, Azure, AWS)

Preferred Software/ Technology      

•     C#

Required Education/ Certifications  

•     Bachelor's degree in computer science engineering or a related discipline, or equivalent work experience

Interview Process 

•     Rounds 1-2: MS Teams video (may include coding assessment)

•     Round 3: In-person in Lake Mary office (may include white board session)

Thank You

Ranjeet Kumar | 1Point System LLC