Java Developer Job at Randstad (London)

Java Developer (Java & Golang)

The Java Developer (Java & Golang) will work for a world leading technology comp...

Location

Sweden , Malmo

Salary:

Not provided

Airswift Sweden

Expiration Date

Until further notice

Requirements

Java
Golang
APIs
Testing
Automation Tools

Job Responsibility

Develop and maintain online services using Java and Golang
Make sure these services are fast, secure, and always available
Handle things like user login, scaling for large numbers of users, and preventing spam
Optimize performance and write APIs
Work with automation tools to speed up testing and deployment

Fulltime

AI Trainer - Advanced Java Developers

We’re looking for Java Developers to help train and evaluate cutting-edge AI mod...

Location

United States; Canada

Salary:

Not provided

Prolific

Expiration Date

Until further notice

Requirements

Java developer skills and verifiable professional experience as a Java developer
A willingness to take our skills verification test to assess your suitability for our Domain Expert participant pool
Strong attention to detail and the ability to concentrate on complex tasks for up to one hour at a time
A reliable and fast internet connection and access to a computer
A willingness to self-declare your earnings, as our participants are self-employed
A Paypal account to receive payment from our clients

Job Responsibility

Completing AI training tasks such as analyzing, editing, and writing Java
Judging the performance of AI in performing Java-related prompts
Improving cutting-edge AI models

What we offer

Competitive pay rates
Flexible hours
Ability to work from home

AI Trainer - Advanced Java Developers

We’re looking for Java Developers to help train and evaluate cutting-edge AI mod...

Location

Salary:

Not provided

Prolific

Expiration Date

Until further notice

Requirements

Java developer skills and verifiable professional experience as a Java developer
A willingness to take our skills verification test to assess your suitability for our Domain Expert participant pool
Strong attention to detail and the ability to concentrate on complex tasks for up to one hour at a time
A reliable and fast internet connection and access to a computer
A willingness to self-declare your earnings, as our participants are self-employed
A Paypal account to receive payment from our clients

Job Responsibility

Completing AI training tasks such as analyzing, editing, and writing Java
Judging the performance of AI in performing Java-related prompts
Improving cutting-edge AI models

What we offer

Influence the AI models of the future
Competitive pay rates
Flexible hours
Ability to work from home

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

Java Developer

Join Sopra Steria as a Java Developer in one of the leading tech consulting comp...

Location

Spain , Barcelona

Salary:

Not provided

Sopra Steria

Expiration Date

Until further notice

Requirements

Proven experience as a Java Developer, with a strong understanding of Java 8 and Java 21
Experience in developing backend applications and automation tools
Solid understanding of object-oriented programming and design patterns
Familiarity with software development best practices and methodologies
Experience with testing frameworks and tools (e.g., JUnit, TestNG)
Knowledge of version control systems (e.g., Git)
Strong problem-solving skills and attention to detail
Excellent communication and teamwork skills
Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent experience.

Job Responsibility

Design, develop, and maintain backend applications for our automation tools
Participate in the migration of existing applications from Java 8 to Java 21
Implement best practices in coding, testing, and software design
Collaborate with cross-functional teams to define, design, and ship new features
Write clean, scalable, and efficient code
Conduct code reviews and provide constructive feedback to peers
Develop and execute unit and integration tests to ensure software quality
Troubleshoot and resolve software defects and issues
Stay up-to-date with the latest industry trends and technologies.

What we offer

Full time permanent contract
23 days annual leave
Continuous training: technical and transversal skills and languages
Life and accident insurance
Flexible benefits program (health insurance, meal vouchers, childcare vouchers, mobility, and training)
'Privilege Club' access, where you will find deals for several brands
Detailed and personalized onboarding
Recreational spaces in offices
Great working environment
Opportunity to develop your professional career with a personalized career development plan.

Fulltime

Lead Java Developer

Sopra Steria Bulgaria is the service and competence centre of the Sopra Steria G...

Location

Bulgaria , Sofia

Salary:

Not provided

Sopra Steria

Expiration Date

Until further notice

Requirements

Profound knowledge and 6+ years of experience in Java Software- and Web-Development
a completed degree or similar education
ability to create an environment where people can reach their full potential
fluent in English
German language is a plus

Job Responsibility

Role in software definition, architecture, design, and implementation
champion modern software architectures, methodologies, technologies, and practices
develop clean code with Java/JEE and web applications
analyse and solve problems
act as a trusted partner to customers

What we offer

Competitive remuneration package
26 days of annual paid leave
comprehensive health, life, and travel insurance
extensive professional training programmes
flat organisational structure
team events in Bulgaria and Germany
multisport cards/vouchers
modern office facilities conveniently located at Metro Station G.M. Dimitrov Blvd.

Fulltime

Senior Backend Java Developer

The Applications Development Senior Programmer Analyst is an intermediate level ...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

5-8 years of relevant experience
Experience in systems analysis and programming of software applications
Experience in managing and implementing successful projects
Working knowledge of consulting/project management techniques/methods
Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements

Job Responsibility

Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
Ensure essential procedures are followed and help define operating standards and processes
Serve as advisor or coach to new or lower level analysts
Has the ability to operate with a limited level of direct supervision
Can exercise independence of judgement and autonomy
Acts as SME to senior stakeholders and /or other team members

Fulltime

Senior Backend Java Developer

The Applications Development Senior Programmer Analyst is an intermediate level ...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

5-8 years of relevant experience
Experience in systems analysis and programming of software applications
Experience in managing and implementing successful projects
Working knowledge of consulting/project management techniques/methods
Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements
Bachelor’s degree/University degree or equivalent experience

Job Responsibility

Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
Ensure essential procedures are followed and help define operating standards and processes
Serve as advisor or coach to new or lower level analysts
Has the ability to operate with a limited level of direct supervision
Can exercise independence of judgement and autonomy
Acts as SME to senior stakeholders and /or other team members

Fulltime

Java Developer

Randstad

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
April 29, 2026

Expiration:
May 07, 2026

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

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Java Developer

Randstad

Location:United Kingdom , London

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:April 29, 2026

Expiration:May 07, 2026

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

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Location:
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Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
April 29, 2026

Expiration:
May 07, 2026