Referso Jobs

Software Developer - Senior

Maarut Inc · Posted Nov 5, 2026

Open

Toronto, Ontario, Canada
Senior
10+ years

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Software Developer - Senior

Maarut Inc · Posted Nov 5, 2026

Open

Toronto, Ontario, Canada
Senior
10+ years

Apply with Referso

Senior Java Developer

INFO ORIGIN INC · Posted Nov 5, 2026

Open

Remote, United States
Remote
Contract · Senior
15+ years

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Senior Java Application Developer

Responsibilities

Design, develop, and test enterprise Java applications and web services.
Build new applications and replace legacy applications.
Maintain existing Java web applications and implement enhancements based on business requirements.
Develop applications using Java EE/JEE frameworks, particularly EJB and JSF.
Implement authentication and authorization using OAuth2 and OpenAM.

Requirements

Nice to have: Enterprise JavaBeans (EJB)
Nice to have: Maven
Nice to have: GitHub
Nice to have: Agile development methodologies
Nice to have: JUnit

Skills

Core Java Java EE/JEE Java Persistence API (JPA)Java Persistence Query Language (JPQL)JavaServer Faces (JSF)PrimeFaces

Database Engineer (PostgreSQL)

Leidos · Posted Nov 5, 2026

Open

Farnborough, Hampshire, United Kingdom
Full-time
£47K–£61K per year

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Database Engineer to support reliable data services across critical UK sectors.

Compensation

Salary: £47,000 - £61,000

Responsibilities

Work closely with Data Architect, Senior Data Engineers and fellow Database Engineers
Build, maintain and operate PostgreSQL database environments in AWS
Investigate and resolve database, data processing and performance issues
Evaluate tools and technologies and contribute to improvements
Support development and maintenance of database integration, migration and data processing processes

Requirements

Nice to have: Aurora PostgreSQL
Nice to have: Amazon RDS
Nice to have: database migration
Nice to have: DB2
Nice to have: Oracle

Skills

PostgreSQL SQL PL/pgSQL AWS RDS Aurora PostgreSQL AWS DMS

Database Engineer (Contractor)

Logile, Inc. · Posted Nov 5, 2026

Open

Bhubaneswar, Odisha, India
On-site
Contract · Senior
6+ years

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Skilled Database Engineer with 6+ years of experience in PostgreSQL database development, design, data modeling, and performance optimization.

Responsibilities

Design and develop PostgreSQL database schemas based on business and application requirements
Perform data modeling, database design, normalization, and database remodeling
Develop and maintain tables, relationships, constraints, indexes, views, and stored procedures
Write, analyze, and optimize complex SQL queries and PL/pgSQL functions
Perform database performance tuning, indexing, and query execution plan analysis

Skills

PostgreSQL SQL PL/pgSQL Data modeling Database design Normalization Query tuning Liquibase Flyway

IT Analyst (Senior Java Application Developer)

Coventek Inc · Posted Nov 5, 2026

Open

Remote, United States
Remote
Full-time · Senior
15+ years

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Senior Java developer (IT Analyst) responsible for developing and maintaining Java applications and web services, including legacy replacement, API development, and CI/CD pipelines in AWS.

Responsibilities

Develop Java applications and web services
Update existing Java web applications
Build web applications using Java web frameworks
Develop web applications and APIs with PostgreSQL
Implement authentication for external users

Requirements

Nice to have: EMSA
Nice to have: Maven
Nice to have: GitHub
Nice to have: Agile development
Nice to have: JUnit

Skills

Java Core Java EE (JEE)Java Persistence API (JPA)Java Persistence Query Language (JPQL)Java Server Faces (JSF) / PrimeFaces PostgreSQL SQL PL/pgSQL

IT Analyst (Senior Java Application Developer)

InterSources Inc. · Posted Nov 4, 2026

Open

Remote, United States
Remote
Contract · Senior
15+ years

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Seeking a senior Java developer (IT Analyst) to develop Java applications and web services for the Utah Department of Health and Human Services.

Responsibilities

Develop Java applications and web services, including new applications and replacements for legacy applications
Update existing Java web applications to maintain current functionality and provide new enhancements
Build web applications using Java web frameworks, with preference given to EJB and JSF
Develop web applications and APIs that use PostgreSQL to store and query data
Implement authentication for external users and systems using standards like OAuth2 or OpenAM

Requirements

Nice to have: EMSA
Nice to have: Maven
Nice to have: GitHub
Nice to have: Agile
Nice to have: JUnit

Skills

Java Core Java EE (JEE)Java Persistence API (JPA)Java Persistence Query Language (JPQL)Java Server Faces (JSF)

Senior Java Application Developer

Talent Software Services, Inc. · Posted Nov 4, 2026

Open

Remote, United States
Remote
Full-time · Senior
15+ years

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Develop Java applications and web services, maintain legacy systems, and implement new features in a remote environment.

Responsibilities

Design, develop, and test Java applications and web services
Build new applications and replace legacy applications
Update existing Java web applications
Develop using Java web frameworks, with preference given to EJB and JSF
Implement authentication for external users and systems using standards such as Auth2 or OpenAM

Requirements

Nice to have: Maven
Nice to have: GitHub
Nice to have: Agile development
Nice to have: JUnit
Nice to have: Arquillian

Skills

Java Core Java EE (JEE)Java Persistence API (JPA)Java Persistence Query Language (JPQL)Java Server Faces (JSF) / PrimeFaces PostgreSQL SQL PL/pgSQL

Lead PostgreSQL Database Administrator (DBA)

InfoPeople Corporation · Posted Nov 4, 2026

Open

Albany, New York, United States
Senior
7+ years

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Senior technical leadership role responsible for strategic design, implementation, administration, security, and performance optimization of enterprise-scale PostgreSQL database environments.

Responsibilities

Manage, monitor, and maintain high-performance PostgreSQL database instances across production, staging, and development environments
Perform advanced database tuning, query optimization, index management, and capacity planning
Design, implement, and manage robust database backup, recovery, replication, and high-availability clustering solutions
Enforce rigorous database security measures, including RBAC, data encryption, vulnerability patching, and compliance auditing
Lead complex database migration projects and provide expert database consulting, schema design guidance, and PL/pgSQL code reviews

Skills

PostgreSQL database administration performance tuning query optimization index management capacity planning high availability

Senior Database Administrator

AMCS Group · Posted Nov 3, 2026

Open

Manila, Philippines
Senior
5+ years

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Database Administrator responsible for managing, maintaining, and optimizing internal and customer SQL databases across cloud platforms.

Responsibilities

Administer, manage, and maintain internal development and customer SQL databases (SQL Server, Azure SQL Database, PostgreSQL).
Possess a good understanding of cloud platforms (Azure, AWS, GCP) to design, implement and manage cloud database infrastructure.
Automate administrative tasks and improve operational efficiency through scripting (PowerShell, Python).
Monitor, analyse and optimise database performance across a large database estate.
Troubleshoot and resolve reported database-related issues, providing timely and effective solutions.

Requirements

Bachelor’s degree in computer science or a related field or equivalent practical experience
Nice to have: Database certifications (SQL Server, PostgreSQL)
Nice to have: cloud certifications (Azure, AWS, GCP)
Nice to have: NoSQL technologies
Nice to have: containerization

Skills

SQL Server Azure SQL Database PostgreSQL Azure

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