At a Glance
- Tasks: Build and maintain solutions for trading platforms and improve software design.
- Company: Join Citi, a global leader in financial services and technology.
- Benefits: Competitive salary, 27 days leave, private medical care, and hybrid work options.
- Other info: Dynamic team environment with excellent career growth and learning opportunities.
- Why this job: Make an impact in finance with cutting-edge tech and innovative projects.
- Qualifications: Strong Java development experience and familiarity with REST APIs and databases.
The predicted salary is between 62000 - 102000 £ per year.
Requirements
- Strong commercial experience as a Java developer.
- Experience in REST API and authentication mechanisms such as OAuth and Basic Authentication.
- Experience with messaging systems and middleware technologies such as Kafka, NATS, Solace, Tibco, or Rabbit MQ.
- Experience working with SQL and databases such as Oracle, SQL Server, or Hadoop.
- Experience with Java multithreading and concurrency, web services such as SOAP and REST, DB2, JMS, MQ, NDM, and SFTP.
- Familiarity with industry best practices and standards, software development tools, and techniques.
- Experience developing distributed systems.
- Experience using containers such as Docker and Kubernetes.
- Experience in low-latency software development in a microservices environment, high-performance architectures, and high-throughput applications is a plus.
- Experience in C++ or C# is beneficial.
- Experience in SBE is desirable.
- Experience with JNI is a plus.
- Ability to work with distributed teams across multiple time zones.
- Bachelors degree in Computer Science, Engineering, Information Technology, or a similar discipline.
Responsibilities
- Build and maintain common solutions for trading platform monitoring, trade reconciliation, application recovery, and other essential support functions.
- Participate in design sessions with the development team, including employees and vendors across multiple locations.
- Evaluate and adopt new development tools, libraries, and approaches to improve delivery quality and align with the latest industry trends.
- Analyze existing software systems and propose solutions to improve overall design, architecture, and efficiency.
- Communicate with stakeholders to help shape requirements and design decisions.
- Liaise with production support teams in troubleshooting and debugging applications.
- Ensure best practices and standards are followed throughout the application development life cycle.
- Provide user and support documentation.
- Ensure applications meet performance and scalability requirements.
- Work comfortably with AI-based coding assistants and AI-powered SDLC processes.
- Drive applications development through hands-on development and bug fixes of our Java application.
Technologies
- AI
- API
- C#
- Docker
- Hadoop
- Support
- Java
- Kafka
- Kubernetes
- NATS
- OAuth
- Oracle
- REST
- Rabbit MQ
- SOAP
- SQL
- TIBCO
- Unity
- Web
- microservices
- Game Dev
- Network
More
We are Citi, a global financial services company with a technology team helping to redefine finance at scale.
Our Unity platform provides a global reference for business transactions across Citi, supporting traceability across the full transaction lifecycle from front office to back office.
This full-time role is based in Belfast, Northern Ireland, and offers a business casual workplace with a hybrid working model of up to 2 days working from home per week.
- a competitive base salary
- annual review
- 27 days of annual leave plus bank holidays
- a discretionary annual performance-related bonus
- private medical care and life insurance
- an employee assistance program
- pension plan
- paid parental leave
- special discounts for employees, family and friends
- access to learning and development resources last updated 36 week of 2026
- #J-18808-Ljbffr
Senior Java Developer employer: Citigroup
Citi is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. As a Sales Director, you will benefit from extensive training and mentorship opportunities, fostering your professional growth while working alongside industry leaders in FX Sales. With a strong commitment to integrity and inclusivity, Citi provides a supportive culture that empowers employees to excel and drive meaningful results for clients.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Java Developer
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Citigroup or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Citigroup.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Citigroup.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Citigroup that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Java Developer
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Citigroup.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Citigroup and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Citigroup
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Citigroup uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
