Database Developer - PostgreSQL/Oracle.

Themesoft Inc; City of Albany (NY); Hybrid; USD 120,000 - 160,000; Full time

Job summary

The Themesoft Inc team is seeking a skilled Database Engineer to design, develop, and optimize PostgreSQL and Oracle database solutions. You will migrate Oracle PL/SQL to PostgreSQL, tune performance, and build RESTful APIs for seamless integration with enterprise applications.

Collaborate with cross-functional teams to deliver robust data platforms, implement ETL pipelines, and ensure secure, scalable deployments across hybrid environments.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• Strong experience with PostgreSQL and Oracle databases, PL/SQL, and database design.
• Experience with ETL processes and data migration activities.

Responsibilities

• Design, develop, and maintain PostgreSQL PL/pgSQL packages, procedures, functions, and views.
• Migrate Oracle PL/SQL code to PostgreSQL and optimize for performance.
• Tune SQL performance, analyze explain plans, and optimize execution plans.
• Develop and support RESTful APIs for database services integration.
• Build and maintain ETL processes and data pipelines.
• Collaborate with developers, QA, DevOps, and analysts to deliver secure, scalable database solutions.
• Prepare technical documentation and deployment procedures for production changes.

Skills

PostgreSQL

Oracle Database

PL/pgSQL

SQL Tuning

RESTful APIs

ETL Processes

Shell Scripting

Git

Agile/Scrum

Education

Bachelor's degree in CS/IT/Engineering

Tools

PostgreSQL

Oracle

Git

Unix/Linux

Job description

Employment Type: Long-term Contractual.

Contract Duration: Starts with 12 Months Contract - Extendable.

Work Location: Menands, NY.

Work Arrangement: Hybrid Role.

Key Responsibilities:

Database Development: Design, develop, and maintain robust Oracle PL/SQL packages, stored procedures, functions, triggers, views, and complex SQL queries, PostgreSQL database objects, including functions, procedures, triggers, and views using PL/pgSQL.

Database Migration & Conversion: Analyze Oracle database objects, map dependencies, and assist in migrating Oracle PL/SQL code to PostgreSQL while ensuring functionality and performance.

Performance Tuning: Troubleshoot slow-running SQL queries, optimize execution plans, indexing strategies, partitioning, and database performance across Oracle and PostgreSQL environments.

API Development & Integration (Preferred): Design, develop, consume, and support RESTful APIs for seamless integration between databases and enterprise applications. Collaborate with application teams to expose database services through APIs.

Data Integration: Build, maintain, and support ETL processes and data pipelines to ensure accurate and efficient data movement across systems.

Cross-Functional Collaboration: Work closely with application developers, QA engineers, DevOps teams, architects, and business analysts to deliver secure, scalable, and high-quality database solutions.

Documentation & Deployment: Prepare technical documentation, deployment scripts, release procedures, and standard operating procedures (SOPs) for database changes and production deployments.

Required Skills & Qualifications:

Technical Skills:

Solid experience in PostgreSQL development, including PL/pgSQL, database design, and query optimization.

Strong hands‑on experience with Oracle Database (11g/12c/19c) and advanced PL/SQL programming.

Expertise in writing complex SQL queries, stored procedures, functions, packages, triggers, and views.

Strong understanding of relational database concepts, data modeling, normalization, and indexing strategies.

Experience analyzing execution plans using Oracle Explain Plan and PostgreSQL EXPLAIN/EXPLAIN ANALYZE to optimize database performance.

Hands‑on experience with RESTful APIs, including API development, integration, testing, and troubleshooting (preferred).

Experience working with JSON/XML data formats and API-based data exchange.

Experience building and supporting ETL processes and data migration activities.

Proficiency in Unix/Linux shell scripting for database automation and operational tasks.

Experience using version control tools such as Git

Familiarity with Agile/Scrum development methodologies.

Preferred Qualifications:

Experience migrating Oracle databases to PostgreSQL.

Knowledge of Java, Spring Boot, Python, .NET, or Node.js for API integration.

Familiarity with cloud platforms such as AWS.

Experience with CI/CD pipelines and DevOps practices.

Knowledge of messaging technologies such as Kafka or RabbitMQ.

Oracle and/or PostgreSQL certifications are a plus.

Education:

Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field.