SSE / Lead Java Integration - Mule ESB

Role & Responsibilities

As a Founding Engineer, you'll join the engineering team during an exciting growth phase, contributing to a platform that handles complex financial operations for B2B companies. You'll work on building scalable systems that automate billing, usage metering, revenue recognition, and financial reporting—directly impacting how businesses manage their revenue operations.

This role is ideal for someone who thrives in a dynamic startup environment where requirements evolve quickly and problems require creative solutions. You'll work on diverse technical challenges, from API development to external integrations, while collaborating with senior engineers, product managers, and customer success teams.

Key Responsibilities

• Build core platform features: Develop robust APIs, services, and integrations that power billing automation and revenue recognition capabilities.
• Work across the full stack: Contribute to backend services and frontend interfaces to ensure seamless user experiences.
• Implement critical integrations: Connect the platform with external systems including CRMs, data warehouses, ERPs, and payment processors.
• Optimize for scale: Design systems that handle complex pricing models, high-volume usage data, and real-time financial calculations.
• Drive quality and best practices: Write clean, maintainable code and participate in code reviews and architectural discussions.
• Solve complex problems: Debug issues across the stack and collaborate with cross-functional teams to address evolving client needs.

The Impact You'll Make

• Power business growth: Enable fast-growing B2B companies to scale billing and revenue operations efficiently.
• Build critical financial infrastructure: Contribute to systems handling high-value transactions with accuracy and compliance.
• Shape product direction: Join during a scaling phase where your contributions directly impact product evolution and customer success.
• Accelerate your expertise: Gain deep exposure to financial systems, B2B SaaS operations, and enterprise-grade software development.
• Drive the future of B2B commerce: Help build infrastructure supporting next-generation pricing models, from usage-based to value-based billing.

Ideal Candidate Profile

Experience

• 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems.
• Strong backend development experience using one or more frameworks: FastAPI / Django (Python), Spring (Java), or Express (Node.js).
• Deep understanding of relevant libraries, tools, and best practices within the chosen backend framework.
• Strong experience with databases (SQL & NoSQL), including efficient data modeling and performance optimization.
• Proven experience designing, building, and maintaining APIs, services, and backend systems with solid system design and clean code practices.

Domain

• Experience with financial systems, billing platforms, or fintech applications is highly preferred.

Company Background

• Experience working in product companies or startups (preferably Series A to Series D).

Education

• Candidates from Tier 1 engineering institutes (IITs, BITS, etc.) are highly preferred.

What we Require

We are recruiting technical experts with the following core skills and hands-on experience on

Mandatory skills : Core java, Microservices, AWS/Azure/GCP, Spring, Spring Boot

Hands on experience on : Kafka , Redis ,SQL, Docker, Kubernetes

Expert proficiency in designing both producer and consumer types of Rest services.

Expert proficiency in Unit testing and Code Quality tools.

Expert proficiency in ensuring code coverage.

Expert proficiency in understanding High-Level Design and translating that to Low-Level design

Hands-on experience working with no-SQL databases.

Experience working in an Agile development process - Scrum.

Experience working closely with engineers and software cultures.

Ability to think at a high level about product strategy and customer journeys.

Ability to produce low level design considering the paradigm that journeys will be extensible in the future and translate that into components that can be easily extended and reused.

Excellent communication skills to clearly articulate design decisions.

6 + years of hands-on development experience and in-depth knowledge of , Spring Java, Spring boot, Quarkus and nice to have front-end technologies like Angular, React JS

● Excellent Engineering skills in designing and implementing scalable solutions

● Good knowledge of CI/CD Pipeline with strong focus on TDD

● Strong communication skills and ownership

● Exposure to Cloud, Kubernetes, Docker, Microservices is highly desired.

● Experience in working on public cloud environments like AWS, Azure, GCP w.r.t. solutions development, deployment & adoption of cloud-based technology components like IaaS / PaaS offerings

● Proficiency in PL/SQL and Database development.

Strong in J2EE & OOPS Design Patterns.

Are you curious, motivated, and forward-thinking? At FIS you’ll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun. 

About the team 

In today’s highly competitive private equity market, firms must not only deliver superior returns, but also respond to more stringent reporting requirements and increasing demands for information – both from within and outside their organization. Throughout the industry there is mounting pressure on organizations to do more, requiring a clear technology strategy that not only addresses the demands of today, but also enables the growth and performance of tomorrow. 

What you will be doing 

This position would be part of CORE product development team to work on:

• Development of new modules & functionality.
• Fixing of the production bugs for existing clients.
• Contribute in team meetings to provide suggestions or raise concerns where necessary
• Participate actively in Agile SCRUM & play the role that SCRUM team demands
• Participate in technology discussions to perform POC’s & help in scaling the application
• Provide technical guidance to other team members.

What you bring: 

Knowledge / Experience

• 3-5 Years of hands-on experience on Java with knowledge of Garbage Collector, JMS, Event Based programming, Collections, Java Streams, Spring Dependency Injection Framework.
• Experience in Angular 2+.
• Experience working with Spring and Hibernate frameworks.
• Working knowledge on application Servers (WildFly)
• Strong experience in REST Web Services.
• Good knowledge in writing DB queries (Oracle, SQL Server)
• Experience working in Unix/Linux environment and proven knowledge of scripting languages
• Exposure to MQ / AMQ messaging system.
• Sound knowledge of Design Patterns

Skills

• Desired to have knowledge of JMX
• Agile – SCRUM or XP or TDD methodology preferred.

Qualifications

• Bachelor’s degree in Computer Science or equivalent

Competencies

• Fluent in English
• Excellent communicator – ability to discuss technical solutions to internal and external parties and adapt depending on the technical or business focus of the discussion
• Attention to detail – track record of authoring high quality documentation
• Organized approach – manage and adapt priorities according to client and internal requirements
• Self-starter but team mindset - work autonomously and as part of a global team

What we offer you

• A multifaceted job with a high degree of responsibility and a broad spectrum of opportunities
• A broad range of professional education and personal development possibilities – FIS is your final career step!
• A competitive salary and benefits
• A variety of career development tools, resources and opportunities

With a 50-year history rooted in the financial services industry, FIS™ is the world's largest global provider dedicated to financial technology solutions.  We champion clients from banking to capital markets, retail to corporate and everything touched by financial services. Headquartered in Jacksonville, Florida, our 53,000 worldwide employees help serve more than 20,000 clients in over 130 countries. Our technology powers billions of transactions annually that move over $9 trillion around the globe.  FIS is a Fortune 500 company and is a member of Standard & Poor’s 500® Index.

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the https://www.fisglobal.com/-/media/fisglobal/files/policies/privacy/online-privacy-notice/english.pdf?la=en">FIS Online Privacy Notice.

Responsibilities:

• Crawl the internet/intranet for issues people are facing and convert them in to stuctured data that would be consumed downstream.
• Familiar with the software development life cycle (SDLC) from analysis to deployment.
• Comply with coding standards and technical design.
• Adapts structured coding styles for easy review, testing, and maintainability of the code.
• Integrate the developed functionality and/or component into a fully functional system.
• Ensure unit and integration level verification plans are in place and adheres to the great quality of code at all times.
• Actively participate in troubleshooting, debugging and updating current live system.
• Verify user feedback in making the system more stable and easy.
• Work closely with analysts, designers, and other peer developers.

Requirements:

• Bachelor's degree in computer science or equivalent practical experience.
• Understanding of OOPS concepts, Persistence, Threading.
• Good understanding of version control system (GIT).
• Knowledgeable in data structures and algorithms.
• A background in Engineering with sound oral and written communication skills.
• 6+ years of experience working on the server-side.
• Exposure to API designing, scalable architecture, and thorough understanding of systems.
• Great database modeling skills.
• Working knowledge of Databases, both relational (such as PostgreSQL) and in-memory database (such as Redis).
• Good understanding of web stack and how all the pieces fit together.
• Experience with open-source projects.
• Experience in designing interactive applications.

Senior Java Backend Developer

Are you a passionate backend developer looking for a new challenge in an international company? Do terms like spring-boot, Redis, Amazon EC2, REST-API and document based databases like MongoDB make you smile and would you like to work in an international company that values your personal growth? We are expanding in India and are looking for an enthusiastic and experienced Java Developer to join the team.

Together with the team, you will be responsible for the development and migration of our FlexWhere application from a PHP based application to a java application. You report to the Manager Development & Support and collaborate with our Dutch IT Team, who work from our headquarters in the Netherlands. We work with two-week sprints, in which features and improvements are tested in an alpha and beta environment, after which you will release the services in our Kubernetes cluster. Our applications are being used by thousands of customers in Europe on a daily basis. By being in close contact with our helpdesk, you know what our users struggle with and how you can improve their experience.

You are not afraid to take ownership and have good interpersonal skills. You believe a good user experience is the ultimate goal and you continuously discover, evaluate and implement new technologies to maximize development efficiency. All in all: you have an innovative spirit and cannot wait to get aboard into an international IT-organization!

• A degree in Engineering (B.Tech or BE);
• Minimum of 3-year work experience as a Java developer in Java and/or Kotlin, Groovy;
• Proficient understanding of code versioning tools (Git);
• Experience with third-party API’s and third-party libraries like MongoDB, Redis, MySQL, ElasticSearch;
• Familiar with automation testing tools;
• Knowledge about scaling architectures in the cloud like EC2.

• Competitive salary;
• Place within a company that is committed to diversity and inclusion;
• Excellent career progression opportunity within an international organization;
• The chance to discover the land of tulips and windmills!

We are Dutchview. An innovative IT company based in the Netherlands with offices in Germany, the United Kingdom and India. Our solutions make it possible for organisations to work smartly and effectively. So that they can focus all their energy on what they do best. It is precisely this freedom that leads to greater job satisfaction: the basis for better results. We make it easy for you.