Senior Java Backend Developer
80 - 90 USD per hourOmegaHires
Senior Java Backend Developer
Location: Remote, USA
Employment type: Contract
Indicative rate: $80–$90/hr
Contract roles for Java engineers developing, modernizing, and supporting enterprise backend applications and services. Work may include API development, integrations, batch processing, microservices, and production support in cloud or on-premises environments. Depending on the assignment, developers may contribute to architecture and technical design, collaborate with product and delivery teams, and help improve reliability, security, and performance.
Core skills
- Java
- Spring Boot
- Microservices
- REST APIs
- Distributed Systems
- SQL
- Agile
- Cloud Platforms
Required qualifications
- Professional hands-on Java development experience
- Experience developing and supporting enterprise applications, backend services, or APIs
- Experience with Spring Boot or the Spring ecosystem where specified
- Experience designing or integrating RESTful services
- Experience with relational databases and SQL
- Ability to write, test, debug, and maintain production-quality code
- Ability to translate functional or technical requirements into software solutions
- Experience working in a collaborative software delivery environment
Preferred qualifications
- Experience with AWS, Azure, or GCP
- Experience with Kafka, messaging, or event-driven architecture
- Experience with CI/CD, DevOps, or production operations
- Experience with batch processing, Linux, or system integrations
- Experience in payments, financial services, healthcare, or other regulated environments
- ...SENIOR FULL STACK DEVELOPER — WEB3 Remote — International | Full-time Salary – up to 90k USD ABOUT THE OPPORTUNITY G2i is recruiting a... ...can own architecture and implementation across frontend, backend, and Web3 integrations. You should be comfortable scaling...
- ...Description Senior Full-Stack Developer (Angular / .NET Core) We are looking for a Senior Full-Stack Developer with strong Angular and .NET... ...operations. Develop, maintain, and optimize REST APIs, backend services, and database functionality to support application...
- ...migrating existing iOS applications Experience with Liquid Glass and/or newer iOS technologies Experience in environments where the developer has ownership of the entire development lifecycle Benefits & perks Welcome kit upon joining Opportunities for career...Remote job
- ...establishing a new team focused on developing and enhancing Android... ..., product owners, designers, backend teams, and QA.... ...Expert knowledge of Kotlin and Java programming and comprehensive... ...Seniority Senior...Remote job
- ...maintain scalable native Android ad architectures using Kotlin and Java for interstitial, app open, rewarded video, native, and banner... ...performance issues. Ensure compliance with Google Play developer policies, AdMob and AppLovin quality guidelines, consent frameworks...
- ...Senior Fiserv DNA Developer / Integration Consultant Independent Contractor | Remote within Canada About the opportunity Aequilibrium seeks experienced Canadian-based developers and integration consultants to support upcoming credit-union and financial-services...
- ...in assets referencing its benchmarks. We are looking for a Java Developer to join the CF Benchmarks Index Team. You will be responsible... ...in the areas of data analysis, core infrastructure, core backend, business logic implementations and more – Support a 24/7...
- ...app downloads. Job Summary We are seeking a skilled and motivated Backend Software Engineer to join our dynamic team. As a Backend Software Engineer, you will play a critical role in designing, developing, and maintaining scalable backend systems and microservices that...
- ...We are looking for a Manual QA Engineer (Backend). In this role, you will dive deep into backend testing, working with both relational and document-oriented databases, REST API clients, Proxy tools, and analytics. Also you will test marketing logics, ensure seamless data...
- ...succeed at an even higher level? Yes? You may be ready to join us. Qualifications ~5+ years of experience in programming roles using Java ~ Knowledge of JavaScript, HTML, CSS ~ Experience in Spring Core, Spring Boot, Hibernate ~ Experience in Angular, React or...
- ...headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of...
- ...consistent engineering standards, tests, and error handling. Requirements ~5+ years of experience building and operating production backend systems, including ownership of at least one service from design through on-call. ~ Bachelor’s degree or higher in Software...
- ...trillions of requests each month, protecting and accelerating applications without added hardware, software, or code changes. Our Developer Platform, including Workers, Workers AI, R2, KV, Durable Objects, and Pages, empowers developers to build and deploy applications...
150 USD per month
...continuously enhancing our award-winning, developer-friendly API and the robust... ...encourage you to apply. Your Role: As a Senior Full-Stack Engineer, you will be responsible... ...and maintaining frontend applications and backend services that form the foundation of...100 - 200 USD per hour
...judgment • Whether the interaction feels right to an experienced developer This role is about engineering taste. Syntax correctness is... ...judgments, and explaining them clearly. WHO YOU ARE • Senior, Staff or Principal-level engineer (or equivalent experience)...- ...accessible technology coverage. About the Role We are looking for a Senior Newsroom Associate with excellent English writing skills and a... ...and understand Arabic-language sources, announcements and developments, and use that information to produce relevant English coverage...
- ...generation of agentic AI infrastructure at Cohere. This team sits at the intersection of ML systems, distributed infrastructure, and developer experience, creating the platform that powers autonomous AI agents at scale. You’ll work on hard, forward-looking problems with...
- ...the successful candidate we offer the opportunity to enhance and develop your career with the following benefits: • Join a highly... ...Other Languages English: B2 Upper Intermediate Seniority Senior...Remote job
- ...the world is the engineering team. We are in charge of creating, developing, improving, and maintaining all Fever services so that more... ...amazing experience. About the role We are looking for a Senior Infrastructure & Cloud Engineer to join our Infrastructure &...
- ...technology to the military in months, not years. ABOUT THE JOB The Senior Supplier Industrialization Engineer, Electrical is a high-... ...systems, standards, and certifications Familiarity with developing high-tech products in a high-mix, low-volume environment Exposure...
- ...Anduril, the path to success weaves through the organization. We are a low-ego group that promotes teamwork and collaboration. You can develop rapport at both the tactical operator level and the executive/acquisition leadership level. 360 Degree Leader. We are a flat,...
- We are seeking a highly skilled Senior Vulkan Graphics Software Engineer to design, develop, optimize, and maintain high-performance graphics software and rendering systems. The ideal candidate will possess deep expertise in the Vulkan API, low-level C programming, graphics...Remote job
- ...to compete in today’s fast-paced markets. The Role: As a Senior Software Engineer on the Clear Street Frontend team, you’ll help... ...to a high standard. ~ Passion for creating a best-in-class developer experience, with an eye for tooling, performance, and maintainability...
- ...Senior AI Project Manager We are seeking a Senior AI Project Manager for our multinational client, a leading group in the Telecom & Fintech sectors , to lead high-impact AI and Machine Learning projects. This role requires a strong mix of technical knowledge in...Remote job
- ...downstream AI and UX performance. Develop and deploy ML models for visual recognition, enhancement,... ...Other Languages English: B2 Upper Intermediate Seniority Lead...Remote job
- ...exceptional software. We’re looking for a collaborative Software Developer who will work on backend-focused maintenance and development , help keep the... ...Build and maintain services and web applications using Java, Maven, and Node.js for product demos. Contribute to...
- ...debug data, and code-level analysis. Work directly with product developers, software engineers, and systems architects to report bugs,... ...Other Languages English: C1 Advanced Seniority Senior...Remote job
- ...including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications. We’re looking for a Senior Cybersecurity to join a global Cybersecurity Operations team responsible for protecting critical environments and supporting...
- ...and delivery of integrations and custom developments across the Temenos Transact solution.... ...TAFJ and Java Temenos Integration... ...Intermediate Seniority Senior...Remote job
- ...standalone. The engineering org is 60+ engineers in squads covering backend, core, server agent, malware research, WAF/WebShield, and... ...not slides. People multiplier (no direct reports) Mentor senior engineers and squad leads toward staff-level scope. Act as...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Java Backend Developer. Be the first to apply!
