Senior Java Backend Developer Job at NTT DATA (Westlake)

Senior Backend Developer

Contract Senior Backend Software Engineer – Java/Python. We’re looking for an ex...

Location

Ireland , Dublin 18

Salary:

Not provided

Solas IT Recruitment

Expiration Date

Until further notice

Requirements

9+ years’ experience in backend development
Strong programming skills in Java, Python, or Node.js
Proven experience building RESTful APIs and microservices
Deep understanding of financial system technologies
Familiarity with cloud platforms (AWS, Azure, or Google Cloud)
Strong problem-solving, communication, and collaboration skills
Passion for delivering secure, high-quality, and scalable systems

Job Responsibility

Design, build, and maintain scalable backend systems and APIs for financial platforms
Integrate with payment gateways, card processors, and banking APIs
Manage and optimize SQL and NoSQL databases for performance and reliability
Implement secure coding practices and ensure compliance with financial regulations
Drive system performance, troubleshooting and optimizing where needed
Contribute to testing, quality assurance, and documentation
Collaborate closely with front-end, product, and infrastructure teams to deliver seamless solutions

Senior Backend Developer

Join Safello as a Senior Backend Developer! Build robust microservices, leverage...

Location

Sweden , Stockholm

Salary:

Not provided

Safello

Expiration Date

Until further notice

Requirements

9+ years of experience as a Backend Developer, ideally with Java Spring Boot
Skilled in SQL, AWS setup and cloud infrastructure
Comfortable with CI/CD pipelines as a core part of your workflow
Familiar with microservice infrastructure and design patterns
Experienced in building high-transaction, high-availability systems
Able to write clean, testable code and conduct effective code reviews
Strong problem solver who can troubleshoot and optimize existing services
Team-first mindset, excellent communication skills, and a drive to innovate

Job Responsibility

Building and scaling the APIs powering mobile and web applications
Writing well-tested, high-performance code
Collaborating closely with cross-functional teams
Guiding architectural decisions that enhance the reliability and scalability of backend systems

What we offer

Flexible B2B Contract: Enjoy autonomy in your schedule and invoicing, including 16 PTO days without deductions
Cutting-Edge Equipment: We provide all necessary hardware and software tools
Fully Remote: Work from anywhere at CEST timezone overlap, with the option to visit our Stockholm office
Growth & Impact: Be part of a fast-growing company where you can significantly influence the future of financial systems and digital asset infrastructure

Fulltime

Senior Backend Developer

Do you want to help us unleash the secret to how happy employees create a happy ...

Location

United Kingdom; Sweden , London; Stockholm

Salary:

Not provided

Quinyx

Expiration Date

Until further notice

Requirements

Solid experience as a backend engineer, with expertise in Java and Spring Boot
Strong knowledge of microservices architecture and distributed systems
Experience working in cloud environments (AWS)
Deep understanding of system design principles and optimization techniques for performance, scalability, and security
Quality-driven mindset, with a commitment to high coding standards, test automation, and continuous integration/deployment (CI/CD)
Strong problem-solving skills, with the ability to troubleshoot and optimize complex backend systems
You are a collaborative team player who values teamwork and enjoys working in a highly interactive environment
You are passionate and energetic, willing to go the extra mile to tackle challenges and deliver high-quality solutions
You drive innovation and continuously look for opportunities to improve processes, tools, and technologies
You build trust among your team members and your leaders by consistently delivering high impact work

Job Responsibility

Design, develop, and maintain backend services and APIs using Java and Spring Boot. Ensure these services are scalable, reliable, and efficient
Influence product development by providing technical expertise, improving engineering processes, and advocating for best practices in software design
Lead and/or participate in technical initiatives that span multiple teams, influencing decisions that affect the entire product area
Contribute to architectural decisions, define best practices, and ensure alignment with long-term technical strategies
Mentor junior engineers, conduct code reviews, and advocate for clean, maintainable code with a strong emphasis on test automation
Actively participate in the hiring process, helping to identify and attract top engineering talent

What we offer

Flexible work hours and latest tools
Enhanced vacation allowance
Gym membership contribution
Ugly Xmas sweater competition

Senior Backend Developer

Senior Backend Developer – Up to £700pd Inside IR35 – Full Remote. One of the mo...

Location

United Kingdom

Salary:

Not provided

Orbis Consultants

Expiration Date

Until further notice

Requirements

Strong experience in Java/Python/Golang programming
Experience with AWS or other cloud platforms
Strong test driven development
Strong scalability and performance mindset

Job Responsibility

Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang
Collaborate with the engineering team to define and implement new features and services
Roll features out to over 10,000,000 users and also close to 5,000 internal staff

Senior Java developer

Lensa Inc. is looking to expand its team in Hungary with a new Backend (Java/Kot...

Location

Hungary , Budapest

Salary:

Not provided

Lensa

Expiration Date

Until further notice

Requirements

Several years experience in backend programming
At least 6+ years of Java/Kotlin web development with Spring or Spring Boot
Excellent OOP skills
Good knowledge of Spring Core, Spring MVC or Spring WebFlux, Spring Data JPA, Spring Security
Excellent knowledge of Relational Database Management Systems
Strong SQL skills
Strong knowledge of HTTP
Experience with Docker
Experience with Agile frameworks

Job Responsibility

Work on new product’s backend development in diverse, distributed cloud-based (AWS) technology stacks using Java/Kotlin and Spring
Work in operations in accordance with DevOps
Work on setting the standards as part of a functional team

What we offer

Flexible working hours with home office opportunity
Medicare health insurance
Company breakfast and lunch every day in the office
Exciting programs and team-building events
Recreation room with darts, ping pong, foosball, XBox, and other games
Modern and fancy office in Buda close to Széll Kálmán tér

Senior Backend Java Developer

Capstone IT is seeking a Senior Java Backend Developer with deep expertise in en...

Location

United States , Glen Allen, VA

Salary:

72.00 - 83.00 USD / Hour

Capstone IT Staffing

Expiration Date

Until further notice

Requirements

Minimum 10 years of experience with a heavy focus on backend development, database connectivity, and containerization
Java (versions 8-17)
Spring Boot (Spring Data, Spring Cloud)
Hibernate (JPA, HQL, JPQL, Criteria, tuning, troubleshooting)
Web Services (SOAP and REST APIs)
Strong familiarity Kafka, MongoDB, and distributed systems concepts
Strong experience with Oracle/SQL Server and database connectivity
Experience with WebLogic, JUnit/Mockito, Git, Gradle/Ant, IntelliJ/Eclipse
Azure DevOps- used for project and backlog tracking
Bachelor’s degree in computer science or similar field

Job Responsibility

Develop clean, efficient, testable backend code
Enhance and maintain data access layers and system performance
Contribute to design discussions and modernization initiatives
Work independently with proactive problem-solving
Clear written and verbal communication
Adapts quickly and works independently

Fulltime

Senior Backend Java Developer

This role involves building and supporting critical banking applications. As an ...

Location

Canada , Mississauga

Salary:

94300.00 - 141500.00 USD / Year

Citi

Expiration Date

Until further notice

Requirements

5-8 years experience in a Software Development role focusing on Java/Spring/Spring Boot development for Backend applications
Experience in developing low latency and high throughput APIs using Java, Spring and Spring Boot
Strong Core Java and functional programming experience
Strong experience in data modeling and experience with relational and NoSQL databases, specifically Oracle and MongoDB
Responsible for server-side design & development
Development of common, reusable components and services
Experience using Git/BitBucket
Good communication skills, both written and verbal
Good troubleshooting skills
Bachelor's degree/University degree or equivalent experience

Job Responsibility

Resolve high-impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
Apply advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
Utilize advanced knowledge of system flow and contribute to developing standards for coding, testing, debugging, and implementation
Develop comprehensive knowledge of how areas of business integrate to accomplish business goals
Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
Contribute to mentoring junior developers and analysts
Assess risk and ensure compliance with applicable laws, rules, and regulations

What we offer

Global benefits designed to support well-being, growth and work-life balance

Fulltime

Senior Lead Backend Java Developer

The Applications Development Manager is a senior level position responsible for ...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

10+ years of relevant experience
Hands-on development experience required
Must have hands-on backend Java development experience
Experience in applications development
Experience in management
Experience managing global technology teams
Working knowledge of industry practices and standards
Consistently demonstrates clear and concise written and verbal communication
Bachelor’s degree/University degree or equivalent experience
Master’s degree preferred

Job Responsibility

Manage multiple teams of professionals to accomplish established goals and conduct personnel duties for team
Provide strategic influence and exercise control over resources, budget management and planning while monitoring end results
Utilize in-depth knowledge of concepts and procedures within own area and basic knowledge of other areas to resolve issues
Ensure essential procedures are followed and contribute to defining standards
Integrate in-depth knowledge of applications development with overall technology function to achieve established goals
Provide evaluative judgement based on analysis of facts in complicated, unique, and dynamic situations including drawing from internal and external sources
Influence and negotiate with senior leaders across functions, as well as communicate with external parties as necessary
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency, as well as effectively supervise the activity of others and create accountability with those who fail to maintain these standards

Fulltime

Senior Java Backend Developer

NTT DATA

Location:
United States , Westlake

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 24, 2026

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Senior Java Backend Developer

Senior Backend Developer

Senior Backend Developer

Senior Backend Developer

Senior Backend Developer

Senior Java developer

Senior Backend Java Developer

Senior Backend Java Developer

Senior Lead Backend Java Developer

Senior Java Backend Developer

NTT DATA

Location:United States , Westlake

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:January 24, 2026

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Senior Java Backend Developer

Senior Backend Developer

Senior Backend Developer

Senior Backend Developer

Senior Backend Developer

Senior Java developer

Senior Backend Java Developer

Senior Backend Java Developer

Senior Lead Backend Java Developer

Location:
United States , Westlake

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
January 24, 2026