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  • Design and develop high-performance Java backend applications and robust RESTful APIs.
  • Optimize complex SQL queries and relational database designs for high-throughput data.
  • Collaborate on Git/GitHub workflows and drive architecture modernization at scale.

Java SQL REST APIs MySQL Git

19 jobs similar to Senior Software Engineer (Java Backend)

Jobs ranked by similarity.

Global

  • Design, develop, and maintain high-performance Java backend applications.
  • Architect and consume scalable RESTful APIs for seamless integration.
  • Optimize complex SQL queries in MySQL for high-throughput data performance.

They build cross-channel management tools that transform large, complex data streams into impactful actions across paid search, social, and retail media. Their collaborative engineering team focuses on designing scalable systems and modernizing technology.

US

  • Design, develop, and maintain secure, scalable backend services and RESTful APIs using Java, Spring Boot, and SQL.
  • Collaborate with architects, frontend developers, QA, DevSecOps, and product teams within an Agile environment.
  • Optimize backend performance, reliability, and observability across application environments.

VetsEZ is a technology consulting firm that supports federal government healthcare modernization projects. They offer a collaborative, Agile-driven culture with training opportunities and a focus on mission-critical applications.

Canada

  • Design, develop, and maintain RESTful APIs for seamless customer integration.
  • Proactively manage technical debt and optimize system architecture for stability and performance.
  • Participate in code reviews, knowledge sharing, and drive the full lifecycle of small feature development.

Megaport is the global leader in Network as a Service (NaaS), transforming the way businesses connect to the cloud, data centers, and each other. We're a publicly listed company with over 600 people across Asia-Pacific, Europe, and the Americas, and a culture that's collaborative, supportive, and fun.

Global

  • Design, develop, and maintain backend services, APIs, and data integration layers that power key product features.
  • Author design documents and drive technical leadership across the domain to ensure scalable, reliable microservices.
  • Mentor junior and mid-level engineers while collaborating cross-functionally with global teams.

Tala is an AI-native credit infrastructure company that connects global capital to the global majority, using proprietary risk intelligence to power credit access at scale. The company has distributed over $9 billion to more than 14 million customers and has been recognized by Fortune, CNBC, and Forbes.

$85,600–$128,400/yr
US

  • Develop and maintain back-end services for OppFi's product portfolio using Java, Docker, AWS, and PostgreSQL.
  • Collaborate with business and technical professionals in an Agile framework to ensure well-designed systems.
  • Perform code reviews, unit testing, integration testing, and implement software best practices while learning new tools.

OppFi is a leading tech-enabled digital finance platform that works with banks to provide financial products and services for everyday Americans. It is a team of caring, innovative, and inclusive individuals with a collaborative culture, named a 2025 Crain’s Fast 50 company.

Europe

  • Design, build and maintain scalable backend systems using modern Java, Node.js and AWS.
  • Lead technical design and architectural discussions to ensure maintainable, performant solutions.
  • Mentor engineers and drive engineering excellence through testing, documentation and code reviews.

CreateFuture builds scalable, secure software for clients, focusing on Java, Node.js, and AWS. They offer a supportive and friendly culture with flexible working and investment in growth.

UK

  • Design, build and maintain scalable, secure and resilient backend systems using modern Java and the Spring ecosystem.
  • Lead technical design, mentor engineers, and champion engineering excellence through clean code, testing, and automation.
  • Collaborate with cross-functional teams to deliver high-quality software that creates measurable business impact.

CreateFuture is an AI-native consulting partner that builds digital products and services for organisations including PayPal, adidas, NatWest, FanDuel and Money Saving Expert. The company has scaled to over 600 people and is a Great Place to Work-Certified organisation with a strong focus on culture, craft, and quality.

$149,400–$235,000/yr
US

  • Drive large, complex projects autonomously, from technical design to launch.
  • Tackle complex architecture challenges and apply architectural standards to new projects.
  • Lead code reviews and documentation, and mentor junior engineers.

Atlassian is a software company that creates collaboration tools for teams, including Jira and Confluence. With a global workforce and a culture focused on unleashing the potential of every team, Atlassians value flexibility, diversity, and continuous improvement.

US

  • Design and implement application features across React frontend, Spring Boot backend, and PostgreSQL schema.
  • Build REST APIs, maintain Node.js services, and deploy applications on Google Cloud Platform.
  • Write unit tests and collaborate with stakeholders to deliver production web applications.

UK

  • Develop secure, well-tested features using Ruby and GraphQL for repository management.
  • Work through complex requirements and legacy constraints to deliver reliable and performant solutions.
  • Collaborate across teams and functions, both asynchronously and synchronously, using AI tools to speed up delivery.

GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to increase developer productivity and accelerate digital transformation. They serve over 50 million registered users and more than 50% of the Fortune 100, fostering a high-performance culture driven by values and continuous knowledge exchange.

$124,749–$196,225/yr
US

  • Build REST APIs that power core customer experiences
  • Configure monitoring for backend services and build CI/CD pipelines
  • Develop features and services with reliability in mind

Atlassian builds collaboration software like Jira and Confluence to help teams unleash their potential. We have a global team and value unique contributions, diversity, and inclusive culture.

US

  • Design, build, and maintain Java-based backend services using Spring Boot or similar frameworks.
  • Develop scalable integrations with Salesforce and other internal/external systems.
  • Participate in architecture discussions, write high-quality code, and troubleshoot complex issues.

Fanatics is building a leading global digital sports platform, offering products and services across commerce, collectibles, and betting & gaming. With over 22,000 employees, the company is committed to enhancing the fan experience and delighting sports fans globally.

Europe

  • Develop secure, well-tested features using Ruby on Rails and GraphQL to improve GitLab's source code experience.
  • Design and maintain backend services and APIs while supporting production reliability through performance tuning and observability.
  • Collaborate with cross-functional teams and use AI agents to speed delivery while critically reviewing their output.

GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to improve developer productivity and security. Trusted by over 50 million users and most of the Fortune 100, it fosters a high-performance culture built on shared values, AI adoption, and continuous knowledge exchange.

Brazil

  • Build, maintain, and improve backend services using Java, Maven, Node.js.
  • Collaborate with client engineering teams to ensure reliable builds and quality.
  • Apply CI/CD and Generative AI tools to deliver practical enhancements.

They are an international software development company that builds reliable, high-quality solutions for global clients. The culture values technical excellence, collaboration, and continuous learning, with a people-first and inclusive environment.

$79,781–$116,347/yr
Global Unlimited PTO

  • Design, develop, and maintain scalable, high-performance, low-latency backend services using Java and AWS in a distributed environment.
  • Collaborate with product, frontend, and QA teams while optimizing services for performance, reliability, and scalability.
  • Drive engineering best practices, CI/CD, observability, and technical mentorship across the team.

A global AI-powered SaaS platform improving the safety of online transactions through distributed systems and real-time data. Remote-first, engineering-led, and AI-first culture with emphasis on learning and collaboration.

$125,000–$156,300/yr
US

  • Work closely with the architecture team to drive complex system design.
  • Perform code reviews and mentor the development team with best practices.
  • Design, build and maintain highly sustainable systems to support business applications.

Natera is a global leader in cell-free DNA testing dedicated to oncology, women’s health, and organ health. The team consists of highly dedicated professionals from world-class institutions who care deeply for our work and each other.

US

  • Design, develop, and maintain features for the FinTech application using Java 21 and Spring Boot 3.x.
  • Collaborate with senior engineers and Product Managers to deliver high-quality software solutions.
  • Write unit and integration tests to ensure quality and stability of the codebase.

NationsBenefits is a Healthcare Fintech company that provides supplemental benefits and member engagement solutions to managed care organizations. It is recognized as a fast-growing company with a collaborative, compliance-focused culture and opportunities for advancement.

  • Design and develop scalable, secure, and high-performance backend services using Java and Spring Boot.
  • Build and maintain cloud-native infrastructure with Terraform and Salt on AWS.
  • Leverage AI-powered development tools to accelerate delivery and improve software quality.

Everbridge is a global software company that provides critical event management and enterprise resilience solutions. The engineering culture emphasizes scalable, reliable, and AI-enabled development practices in a collaborative environment.