java backend engineer

Citi

<div><h2 class="jobSectionHeader">Discover your future at Citi</h2>
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you&rsquo;ll have the opportunity to grow your career, give back to your community and make a real impact.
<h2 class="jobSectionHeader">Job Overview</h2>
The Lead Java Backend Engineer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. 
 
Responsibilities:<ul><li>
Design, develop, and maintain Java web applications using Spring Boot within a microservices architecture</li><li>
Engage in the full software development lifecycle (SDLC), including planning, development, testing, and deployment, with a focus on cloud-based environments like OpenShift, ensuring adherence to best practices in CI/CD pipelines with an SDLC framework</li><li>
Work collaboratively with cross-functional teams in a distributed, global environment to deliver projects aligned with strategic business objectives</li><li>
Manage multiple priorities in a fast-paced setting, rapidly adapting to changes in business requirements and technology landscapes</li></ul>
Qualifications:<ul><li>
6+ years of professional experience building Java-based (Java 8+) web applications</li><li>
Strong proficiency in core Java including OOP principles, Collections, Multi-threading &amp; Concurrency, Streams, Lambda.</li><li>
Solid understanding with containerization and microservices architecture(Docker, Kubernetes, OpenShift)</li><li>
Excellent knowledge and Work experience in Spring Framework such as Spring Boot, Spring Data, etc.</li><li>
Strong knowledge and work experience in ORM framework like JPA/Hibernate.</li><li>
Solid understanding of Messaging Middleware (Kafka, etc.)</li><li>
Familiarity of distributed cache (Redis, etc.)</li><li>
Knowledge of DevOps tools such as Jenkins, Git/Bitbucket, Harness, etc. for automation and efficient management of the software development lifecycle</li><li>
Understanding of the domain driven design (DDD) software design approach</li><li>
Experience in writing unit testing using Junit and Mockito</li><li>
Demonstrable experience in writing clean, reusable, testable code.</li><li>
Demonstrable understanding and experience of engineering best practices: design patterns, coding standard, code review, unit testing.</li><li>
Experience with relational database like Oracle</li></ul>
Education:<ul><li>
Bachelor&rsquo;s degree in computer science or related field</li></ul>
Candidate must be located within commuting distance or be willing to relocate to the Tampa, Fl area.
-
Job Family Group:
Technology
-
Job Family:
Applications Development
-
Time Type:
Full time
-
Primary Location:
Tampa Florida United States
-
Primary Location Full Time Salary Range:
$113,840.00 - $170,760.00 
In addition to salary, Citi&rsquo;s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental &amp; vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.
-
Most Relevant Skills
Please see the requirements listed above.
-
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.
-
Anticipated Posting Close Date:
Jan 07, 2026
-
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.
If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. 
 
View Citi&rsquo;s EEO Policy Statement and the Know Your Rights poster.</div>

Lead Java Backend Engineer - Vice President

Tailored Management

<div>
 
 
 Job Title:
 
 Backend Engineer II
 
 
 
 Location:
 
 Seattle, WA 98101 (Hybrid) / 4 days onsite (Mon - Thur)
 
 
 
 Duration:
 
 12-month contract (with possible extension)
 
 
 
 Start Date:
 
 Targeting Jan 2025
 
 
 
 Pay Rate:
 
 $57.75/hr. to $63.38/hr. on W2
 
 
 
 Benefits:
 
 Medical, Dental, Vision.
 
 
 
 Shift timing:
 
 8:00 AM to 5:00 PM or 9:00 AM to 6:00 PM (Pacific Time)
 
 
 
 Interview Process:
 
 
 <ul>
 <li>
 
 Round 1:
 
 Behavioral Interview (1 hour)
 </li>
 <li>
 
 Round 2:
 
 Technical Interview (1 hour)
 </li>
 </ul>
 
 
 
 
 
 Note:
 
 
 W2 candidates only; C2C cannot be considered.
 
 
 
 
 
 
 
 Job Description:
 
 
 
 
 Responsibilities:
 
 
 <ul>
 <li>
 Design, build, and maintain backend services and RESTful APIs using Java (8+) and Spring Boot
 </li>
 <li>
 Develop scalable, cloud-native microservices following software engineering best practices
 </li>
 <li>
 Perform data modeling, storage, and performance optimization using Amazon Aurora (PostgreSQL) and DynamoDB
 </li>
 <li>
 Collaborate with product managers, frontend engineers, and QA teams to deliver high-quality features
 </li>
 <li>
 Build and maintain integrations with internal and external systems
 </li>
 <li>
 Participate in code reviews, sprint planning, deployments, and incident response activities
 </li>
 <li>
 Ensure performance, security, reliability, and availability of backend services in production environments
 </li>
 </ul>
 
 
 
 
 
 Required Skills &amp; Qualifications:
 
 
 <ul>
 <li>
 5&ndash;10 years of backend development experience using Java and Spring Boot
 </li>
 <li>
 Strong hands-on experience with RESTful API development and microservices architecture
 </li>
 <li>
 Proficiency with SQL and NoSQL databases
 </li>
 <li>
 Strong experience with Amazon Aurora (PostgreSQL)
 </li>
 <li>
 Familiarity with Amazon DynamoDB and efficient NoSQL data modeling
 </li>
 <li>
 Solid understanding of multithreading, concurrency, and application performance tuning
 </li>
 <li>
 Experience with Git, CI/CD pipelines, and build tools such as Maven or Gradle
 </li>
 <li>
 Experience deploying, monitoring, and supporting services in cloud environments (AWS preferred)
 </li>
 <li>
 Strong analytical, debugging, and troubleshooting skills
 </li>
 </ul>
 
 
 
 
 
 Preferred Qualifications:
 
 
 <ul>
 <li>
 Experience with AWS services such as Lambda, S3, API Gateway, ECS, or EKS
 </li>
 <li>
 Familiarity with event-driven architecture and messaging tools like Kafka or SQS
 </li>
 <li>
 Hands-on experience with Docker and Kubernetes
 </li>
 <li>
 Knowledge of secure coding practices, API security, and OAuth2
 </li>
 <li>
 Experience writing unit and integration tests using JUnit, Mockito, or similar frameworks
 </li>
 <li>
 Monitoring and logging experience with CloudWatch and/or ELK Stack
 </li>
 </ul>
 
 
 
 
 
 Education:
 
 
 <ul>
 <li>
 B.Tech or M.Tech in Computer Science / Information Technology
 </li>
 <li>
 Exposure to React, .NET WPF, or React Native is a plus
 </li>
 </ul>
 
 
 
 
 
 
 
 
 
 
 
 
 &ldquo;Join our team to build scalable, high-performance backend services in a cloud-native environment, working with cutting-edge Java, Spring Boot, and AWS technologies while driving innovation across microservices and API development.&rdquo;
 
 
 
 
 
</div>

Backend Engineer II

Precise Communications

Job Summary:We are seeking a Java Developer to design, develop, implement, and maintain robust backend services and CMS solutions. You will play a critical role in building scalable systems and ensuring secure integrations with internal and external services.Key Responsibilities:<ul><li>Build and maintain backend components using Java, Spring Boot, and related frameworks.</li><li>Work on microservices, monolithic architecture and API development.</li><li>Ensure secure and efficient data transmission between internal modules and third-party systems.</li><li>Write unit, integration, and performance tests using JUnit, or any other tool.</li><li>Identify bottlenecks, bugs, and devise solutions to mitigate and address issues.</li><li>Maintain detailed documentation and collaborate in code reviews.</li></ul>Required Skills:<ul><li>3-5 years of professional experience in java development with experience in Java 8+, Spring Boot, Hibernate/JPA.</li><li>Experience with RESTful APIs, OAuth 2.0/JWT, and WebSockets.</li><li>Understanding of CI/CD pipelines, Docker, and Maven/Gradle.</li><li>Database experience (MySQL, PostgreSQL, MongoDB).</li><li>Familiarity with logging and monitoring tools like ELK, Prometheus, or Grafana.</li><li>Must have worked with any CMS.</li></ul>Job Type: Full-timePay: AED5,000.00 - AED10,000.00 per monthAbility to commute/relocate:<ul><li>Abu Dhabi: Reliably commute or planning to relocate before starting work (Required)</li></ul>Application Question(s):<ul><li>Do you hold a valid Emirate ID?</li></ul>Experience:<ul><li>Java, Springboot and related framework: 3 years (Preferred)</li></ul>

Java Developer

Amicon Hub Services

<div>
 
 JD:- Role: Backend Developer
 
 
 Budget- 25-26k AED
 
 
 Experience- 8 Years
 
 
 Location- Onsite Dubai
 
 
 Position-2
 
 
 Skills: Java, Data structures, Algorithms, Microservices, java collection, Generics Springboot, System architecture, Kafka, Kubernetes, Lambda
 
 
 We are looking for a highly experienced and technically strong Senior Java Developer who brings a unique blend of architectural thinking and hands-on coding expertise. This role is ideal for candidates who are passionate about high-performance backend systems, microservices architecture, and writing clean, optimized code using modern Java, Spring Boot, and associated cloud-native technologies.
 
 
 As a key individual contributor, you will be responsible for end-to-end technical ownership &mdash; from architecture and design decisions to core backend development and performance optimization in large-scale distributed systems.
 
 
 ______________
 
 
 Key Responsibilities:
 
 
 &bull; Design, develop, and maintain highly scalable and robust Java-based microservices using Spring Boot.
 
 
 &bull; Take full ownership of system architecture, design patterns, and end-to-end design decisions.
 
 
 &bull; Write high-performance code applying advanced data structures and algorithms for real-world large data challenges.
 
 
 &bull; Design and implement caching strategies and low-latency data pipelines using Redis.
 
 
 &bull; Develop and deploy containerized services using Docker and orchestrate them via Kubernetes.
 
 
 &bull; Lead the technical direction on projects including system design, database schema design, and performance tuning.
 
 
 &bull; Collaborate with product teams and other engineers to convert product requirements into scalable, production-ready solutions.
 
 
 &bull; Conduct thorough code reviews, enforce best coding practices, and mentor junior developers where applicable (without people management responsibilities).
 
 
 ______________
 
 
 Required Skills:
 
 
 &bull; Strong core Java (8/11/17) development experience with advanced knowledge of the JVM.
 
 
 &bull; In-depth understanding of data structures and algorithms and their application in backend development.
 
 
 &bull; Expertise in Spring Boot, Spring Cloud, and building production-grade microservices.
 
 
 &bull; Practical experience in system architecture, design patterns (Factory, Singleton, Observer, etc.), and architectural principles (SOLID, DDD).
 
 
 &bull; Hands-on experience with Redis for caching and performance optimization.
 
 
 &bull; Proficiency in Docker and deploying applications on Kubernetes clusters.
 
 
 &bull; Strong database skills: experience with both SQL (PostgreSQL/MySQL) and familiarity with NoSQL solutions.
 
 
 &bull; Exposure to distributed systems, message brokers (Kafka/RabbitMQ), and event-driven architecture.
 
 
 &bull; Experience working in high-throughput, low-latency environments with a focus on performance tuning.
 
 
 &bull; Proven ability to work independently in a fast-paced environment and take technical ownership of features and modules.
 
 
 ______________
 
 
 Preferred/Good to Have:
 
 
 &bull; Experience with cloud platforms (AWS, GCP, or Azure).
 
 
 &bull; Exposure to observability tools (Prometheus, Grafana, ELK Stack).
 
 
 &bull; Familiarity with CI/CD pipelines and DevOps best practices.
 
 
 &bull; Exposure to load testing and system resilience strategies (rate limiting, circuit breakers).
 
</div>

Lead Java Developer

Binance

<div><div>Binance is a leading global blockchain ecosystem behind the world&rsquo;s largest cryptocurrency exchange by trading volume and registered users. We are trusted by over 280 million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world.</div><div></div><div> 
About the team</div><div>
Binance Cloud is a comprehensive exchange infrastructure solution that enables qualified entities to effortlessly deploy and launch a crypto exchange. Leveraging Binance&rsquo;s cutting-edge technology, Binance Cloud provides top-tier liquidity, strong regulatory compliance, and system stability, with ample room for customization. 
</div><div></div> 
<div>We are seeking a mid to senior level Java Engineer with a robust background in developing our trading systems. The ideal candidate will possess expertise in designing high-concurrency, high-availability systems.</div>
<h3 class="jobSectionHeader">Responsibilities</h3><ul><li>
Design, develop, and maintain high-performance Java-based applications for spot or futures trading systems</li><li>
Architect and implement scalable, low-latency, and fault-tolerant systems to handle high-concurrency workloads</li><li>
Optimize system performance to ensure high availability and reliability under demanding conditions</li><li>
Collaborate with cross-functional teams, including product managers, DevOps, and other developers, to deliver robust solutions</li><li>
Write clean, maintainable, and well-documented code following best practices</li><li>
Troubleshoot and resolve complex technical issues in production environments</li><li>
Stay updated on industry trends and emerging technologies to continuously improve system capabilities</li><li>
Participate in code reviews, mentoring junior developers, and fostering a culture of technical excellence</li></ul><h3 class="jobSectionHeader">
Requirements</h3><ul><li>
Bachelor's/Master's degree in Computer Science, Engineering or a related field</li><li>
5+ years of experience with backend development</li><li>
Strong expertise in designing and implementing high-concurrency, high-availability systems</li><li>
Proficiency in Java frameworks and tools (e.g., Spring, Hibernate, Maven)</li><li>
Deep understanding of multithreading, concurrency patterns, and distributed systems</li><li>
Experience with messaging systems (e.g., Kafka, RabbitMQ) and database technologies (e.g., SQL, NoSQL)</li><li>
Familiarity with microservices architecture and cloud platforms (e.g., AWS, Alibaba Cloud)</li><li>
Strong problem-solving skills and ability to work under pressure in a fast-paced environment</li><li>
Adaptive mindset with a willingness to learn and embrace new challenges</li><li>
Excellent communication skills and ability to collaborate effectively in a remote, international team</li></ul><div>
Why Binance</div><ul><li>Shape the future with the world&rsquo;s leading blockchain ecosystem</li><li>Collaborate with world-class talent in a user-centric global organization with a flat structure</li><li>Tackle unique, fast-paced projects with autonomy in an innovative environment</li><li>Thrive in a results-driven workplace with opportunities for career growth and continuous learning</li><li>Competitive salary and company benefits</li><li>Work-from-home arrangement (the arrangement may vary depending on the work nature of the business team)</li></ul><div></div><div> 
Binance is committed to being an equal opportunity employer. We believe that having a diverse workforce is fundamental to our success.</div><div>
By submitting a job application, you confirm that you have read and agree to our Candidate Privacy Notice.</div>

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.</div>

Senior Java Engineer

Tkxel

<div>
 
 We are seeking a skilled
 
 Java Developer
 
 with 3&ndash;5 years of experience to join our dynamic software development team. The ideal candidate will be responsible for designing, developing, and maintaining robust Java-based applications while collaborating with cross-functional teams to deliver high-quality solutions.
 
 
 
 
 Key Responsibilities:
 
 
 
 
 <ul>
 <li>
 
 Develop, test, and maintain scalable Java applications.
 
 
 </li>
 <li>
 
 Collaborate with product owners, business analysts, and team members to gather requirements and design technical solutions.
 
 
 </li>
 <li>
 
 Participate in the full software development lifecycle, including design, development, testing, deployment, and support.
 
 
 </li>
 <li>
 
 Write clean, maintainable, and efficient code following best practices and coding standards.
 
 
 </li>
 <li>
 
 Troubleshoot and resolve application issues in a timely manner.
 
 
 </li>
 <li>
 
 Implement and maintain RESTful APIs and integrate with front-end applications.
 
 
 </li>
 <li>
 
 Optimize applications for maximum performance, scalability, and reliability.
 
 
 </li>
 <li>
 
 Conduct code reviews and provide constructive feedback to peers.
 
 
 </li>
 <li>
 
 Keep up-to-date with emerging Java technologies, frameworks, and industry trends.
 
 
 
 </li>
 </ul>
 
 Required Skills &amp; Qualifications:
 
 
 
 
 <ul>
 <li>
 
 Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.
 
 
 </li>
 <li>
 
 3&ndash;5 years of professional experience in Java development.
 
 
 </li>
 <li>
 
 Strong knowledge of
 
 Core Java, OOP concepts, and data structures
 
 .
 
 
 </li>
 <li>
 
 Experience with
 
 Spring Framework (Spring Boot, Spring MVC, Spring Data JPA)
 
 .
 
 
 </li>
 <li>
 
 Familiarity with
 
 RESTful Web Services, JSON, and XML
 
 .
 
 
 </li>
 <li>
 
 Hands-on experience with relational databases (MySQL, PostgreSQL, Oracle) and writing complex SQL queries.
 
 
 </li>
 <li>
 
 Understanding of
 
 Agile/Scrum methodologies
 
 .
 
 
 </li>
 <li>
 
 Experience with version control systems, preferably
 
 Git
 
 .
 
 
 </li>
 <li>
 
 Knowledge of
 
 unit testing frameworks
 
 (JUnit, Mockito).
 
 
 </li>
 <li>
 
 Experience with build tools like
 
 Maven or Gradle
 
 .
 
 
 </li>
 <li>
 
 Understanding of multithreading, concurrency, and design patterns.
 
 
 
 </li>
 </ul>
 
 Optional / Added Advantage:
 
 
 
 
 <ul>
 <li>
 
 Experience with
 
 microservices architecture
 
 .
 
 
 </li>
 <li>
 
 Knowledge of
 
 cloud platforms
 
 (AWS, Azure, GCP).
 
 
 </li>
 <li>
 
 Familiarity with front-end technologies (
 
 Angular, React
 
 ) for full-stack development.
 
 
 </li>
 <li>
 
 Experience with CI/CD pipelines and DevOps practices.
 
 
 </li>
 </ul>
</div>

JAVA Developer

Nisum

We are looking for a highly skilled Java Engineer with strong expertise in modern backend technologies, cloud platforms, and scalable system design. The role requires proficiency in .NET, Java, Spring frameworks, microservices, and containerized deployments, with exposure to frontend frameworks as a secondary skill set.What You&rsquo;ll DoThis position is ideal for a driven engineer passionate about building robust backend systems, cloud-native applications, and contributing to high-performing software solutions.Backend Development &amp; Cloud Engineering<ul><li>Design, develop, and maintain backend services using .NET / C# and Java (J2EE/Jakarta EE 9.0+).</li><li>Build microservices and enterprise applications using Spring Framework (5.x+), Spring Boot (2.6+), and Spring Cloud.</li><li>Deploy and manage applications in Docker / Kubernetes environments.</li><li>Implement cloud-native solutions with hands-on AWS Cloud services.</li><li>Apply unit and integration testing frameworks such as JUnit, Mockito, AssertJ, SpringTest, TestContainers, and WireMock.</li><li>Collaborate using GitHub, Jira, and CI/CD pipelines for development and project management.</li></ul>Collaboration &amp; Continuous Improvement<ul><li>Work closely with cross-functional teams to deliver scalable backend architectures.</li><li>Ensure code quality by following clean code, OOP principles, and design patterns.</li><li>Optimize performance, monitor bottlenecks, and maintain security best practices.</li><li>Write and maintain documentation, unit tests, and integration tests for reliability.</li></ul>What You Know<ul><li>5+ years of expertise in Java (J2EE/Jakarta EE 9.0+).</li><li>Hands-on experience with Spring Framework (5.x+), Spring Boot (2.6+), and Spring Cloud.</li><li>Proficiency with Docker, Kubernetes, and AWS Cloud.</li><li>Familiarity with testing frameworks: JUnit, Mockito, AssertJ, SpringTest, TestContainers, WireMock (at least one or two).</li><li>Knowledge of version control (GitHub) and project tracking tools (Jira).</li><li>Secondary exposure to frontend frameworks such as React or Angular.</li><li>Strong problem-solving, debugging, and analytical skills.</li></ul>Education<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.</li></ul>Job Type: Full-timePay: From Rs80,000.00 per monthWork Location: In person

Senior Java Developer

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