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  • Design and develop scalable backend solutions using Java 21 and Spring Boot in a microservices architecture.
  • Build and optimize REST APIs, manage CI/CD pipelines with GitLab, and ensure code quality via SonarQube and automated testing.
  • Work in an agile environment with cross-functional teams on a long-term, high-reliability fintech project.

Java Spring Boot REST API AWS Microservices

20 jobs similar to Mid/Senior Java Developer (Banking/Fintech)

Jobs ranked by similarity.

Poland

  • Design and implement high-performance microservices in Java/Spring Boot and maintain event-driven integrations using Apache Kafka.
  • Take full ownership of features end-to-end, work directly with business stakeholders, and write clear technical documentation.
  • Mentor team members, hold the bar on code quality through reviews and CI/CD, and proactively address technical debt.

InPost Group is an innovative European out of home deliveries company, revolutionizing parcel delivery through intelligent lockers. With over 10,000 employees worldwide and a market capitalization of about $5 billion, it is one of the largest out of home delivery providers in Europe, committed to sustainable and efficient solutions.

Global

  • Design, build, and maintain JVM-based microservices (Java/Kotlin) on AWS ECS, App Runner, and Lambda, working with PostgreSQL, DynamoDB, and event-driven integrations.
  • Take full ownership of services from design to production, making architectural decisions and proactively identifying and fixing issues before they escalate.
  • Collaborate on API design and leverage AI-assisted development tools as part of your daily workflow.

Routescanner is the world's leading container logistics intelligence platform, helping shippers and cargo owners optimize intermodal container routes based on transit times, carrier reliability, and CO₂ emissions. We're a growing, lean company with a small, high-ownership engineering team that values trust, output, and clean code.

Portugal

  • Design, develop, and maintain scalable backend applications using modern Java (17/21) and the Spring ecosystem
  • Own software delivery from architecture and implementation through deployment, monitoring, and production support
  • Collaborate with cross-functional teams to build resilient cloud-native applications and influence technical architecture

Pragmatike is recruiting on behalf of a leading software engineering consultancy that partners with global organizations to design, build, and scale high-performance digital products. The company delivers modern cloud-native applications and distributed systems while fostering a collaborative, engineering-first culture.

Hungary

  • Develop software solutions and ensure operational stability within an agile project setup.
  • Coordinate with business units, analyze requirement documents, and resolve production issues.
  • Contribute to the implementation of new business and IT initiatives with modern technologies.

Deutsche Telekom IT Solutions is a subsidiary of Deutsche Telekom Group, providing IT and telecommunications services. They are the largest ICT employer in Hungary with over 5000 employees and have been recognized as one of the most attractive workplaces.

Poland

  • Analyze, design, and implement backend solutions for a large-scale modernization initiative.
  • Develop and maintain applications using Java and Spring Boot, including REST APIs and microservices.
  • Collaborate in an Agile team to support migration, refactoring, and CI/CD processes.

Inetum Polska drives digital transformation for businesses and public institutions through a wide range of IT services. With over 28,000 professionals globally, the company fosters a diverse and inclusive work environment and supports employee development through training and certifications.

Brazil

  • Design and maintain enterprise applications using Java 17+ and Spring Boot in a microservices architecture.
  • Develop and enhance high-performance solutions with automated testing and code reviews.
  • Integrate systems using cloud and on-premise applications, including message brokers like Kafka or RabbitMQ.

CI&T helps large enterprises transform AI potential into business impact with tech-integrated solutions. With 8,000 employees across over 25 countries, they foster a collaborative, innovative, and multicultural culture.

Brazil

  • Collaborate with cross-functional teams to design and implement complex backend solutions using Java Spring Boot.
  • Write maintainable, scalable code following best practices and stay up-to-date with latest frameworks.
  • Develop, test, and deploy backend solutions, providing ongoing maintenance and support documentation.

KTO is an iGaming company founded in 2018, offering online sports betting and casino entertainment with a proprietary platform. They are a rising leader in LATAM, ranked among Brazil's top 10 iGaming brands, and foster a culture of innovation, transparency, and diversity.

Eastern Europe

  • Develop backend features within existing Java/Spring Boot services.
  • Fix production issues and implement small enhancements.
  • Collaborate with a distributed, agile engineering team.

Nagarro is a digital product engineering company that builds products, services, and experiences that inspire and delight. With 19,000+ experts across 34 countries, the company has a dynamic and non-hierarchical work culture.

Latin America

  • Design, develop, and maintain backend services using Java and Spring Boot, following microservices architecture patterns.
  • Deploy, operate, and troubleshoot services on AWS, working with compute, managed databases, storage, messaging, and observability tooling.
  • Lead code reviews, enforce coding standards, and mentor mid- and junior engineers on backend and cloud best practices.

Nortal is a global technology company that delivers digital transformation solutions for enterprises and public sector organizations. With over 25 years of experience, they are at the forefront of AI-driven transformation, and their Latin America remote team fosters a close-knit community with autonomy and open communication.

Global

  • Design and develop scalable microservices and RESTful APIs using Java and Spring Boot.
  • Build backend systems supporting dynamic call routing, queue management, and config-driven workflows.
  • Collaborate with UI teams to power self-service interfaces for business users on Amazon Connect.

Miratech is a global IT services and consulting company that helps visionaries change the world through digital transformation. Retaining nearly 1,000 full-time professionals with a culture of Relentless Performance and a 99% project success rate, the company operates across 5 continents and 25 countries.

Poland

  • Drive modernization of legacy Java applications by migrating from Wildfly to Spring Boot and removing EJB/JMS components.
  • Standardize APIs using OpenAPI specifications and integrate event-driven communication via Kafka.
  • Build for the cloud with Kubernetes, automate CI/CD pipelines, and implement AI-based code review systems.

Inetum Polska is part of the global Inetum Group, driving digital transformation for businesses and public institutions with IT services. Operating in 19 countries and employing over 28,000 professionals, it fosters a diverse and inclusive work environment with a focus on employee development.

Spain

  • Develop and maintain high-performing backend services using Java, Spring Boot, and Apache Kafka.
  • Participate in a mandatory 24/7 on-call rotation on a weekly basis every 3 to 4 months.
  • Collaborate within a multicultural team on international projects in the banking industry.

We are an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.

$162,717–$244,039/yr
US Unlimited PTO

  • Provide technical leadership across banking-focused engineering initiatives to deliver secure, scalable financial solutions.
  • Drive architectural decisions and infrastructure improvements to enhance system reliability and performance.
  • Mentor and coach engineers while promoting an AI-first engineering mindset and operational excellence.

Cash App is a financial services platform that enables customers to manage and move money. It is part of Block, a large global technology company with a culture of innovation, inclusion, and collaboration.

Brazil

  • Lead the design, development, and continuous improvement of scalable backend systems using Java and Spring Boot on AWS.
  • Implement comprehensive automated testing strategies and ensure high code quality through peer reviews and clean architecture.
  • Collaborate in agile cross-functional teams to deliver robust, cloud-native solutions with a focus on DevOps and CI/CD.

Jobgether uses an AI-powered matching process to connect candidates with job opportunities, focusing on objective and fair reviews. It is a platform that partners with hiring companies, handling initial screening while building an inclusive and collaborative work environment with global exposure.

Romania Poland

  • Design, develop, and maintain backend services for the Aggregation Platform, enabling seamless integrations between game providers and operators.
  • Build and enhance API-first solutions that support scalable, high-performance, and business-critical systems.
  • Develop secure, maintainable, and high-quality code while following engineering best practices.

Software Mind develops solutions that make an impact for companies around the globe. Our culture embraces openness, acts with respect, shows grit & guts and combines employment with enjoyment.

$120,000–$150,000/yr
US 4w PTO

  • Develop integrations by researching and using unfamiliar APIs and collaborate with your team to build and support services.
  • Participate in design sessions, stand-ups, planning/grooming meetings, and code reviews to ensure high-quality code.
  • Mentor other software engineers and drive collaborative design decisions with your team and product owner.

DrFirst is a healthcare IT company that simplifies healthcare transactions to improve patient care. The company has a collaborative, entrepreneurial culture and is growing steadily.

US

  • Design scalable systems and validate AI-assisted code to drive technical excellence across the team.
  • Collaborate with engineers through pairing, code reviews, and knowledge sharing in weekly Friday Dev Chats.
  • Mentor junior engineers and work with product team to execute features from requirements to deployment.

Real (Nasdaq: REAX) is a publicly traded, fast-growing global real estate brokerage powered by technology and driven by people. With operations across the U.S., Canada, India, and the District of Columbia, the company pairs Tech x Humanity to reimagine the residential real estate experience.

Global

  • Design, develop, and maintain scalable applications using Java and modern frontend technologies
  • Lead by example and mentor a development team while continuously improving engineering practices
  • Drive technical discussions and contribute to architecture decisions

Tieto Tech Consulting is a technology consulting firm that partners with global telecom enabler BICS. The team has been growing since 2010 and fosters a culture of diversity, equity, and inclusion.

Romania Poland

  • Design, develop, and maintain both backend and frontend components of the Aggregation Platform, building API-first integration solutions.
  • Develop scalable, secure, and high-performance applications using Java, TypeScript, Node.js, Webpack, and modern package management tools.
  • Collaborate with cross-functional teams to design integration solutions, contribute to CI/CD pipelines, and improve platform architecture.

Software Mind develops solutions that make an impact for companies around the globe, working with tech giants and unicorns on transformative projects. Its culture embraces openness, acts with respect, shows grit and guts, and combines employment with enjoyment, with cross-functional engineering teams.

$90,520–$135,780/yr
Canada

  • Lead backend development using Java, Spring Boot, and event-driven architectures to build scalable services.
  • Design and implement RESTful APIs, microservices, and integrations with internal and third-party systems.
  • Drive API governance, integration standards, and mentor engineering teams to ensure high-quality platforms.

Rush Street Interactive is a market leader in online casino and sports betting, operating real-money gaming brands like BetRivers.com and PlaySugarHouse.com. As a rapidly growing public company, it fosters a culture of collaboration, autonomy, and professional growth.