Senior Java Developer Java Developer

job description

We are seeking an experienced Java developer to assume a senior role in evolving our cutting-edge data ingestion, enrichment, and analytics platform. We are deeply committed to pioneering innovative applications leveraging the latest advancements in real-time streaming data processing, cloud-native data lake architectures, advanced analytics, and thoughtful integration of AI and LLM based tools and agents. Our goal is to build a highly scalable and flexible platform that can power diverse business offerings.

We're looking for a candidate who thrives on exploring the boundaries of what's possible, identifying creative solutions to complex challenges in a rapidly evolving technological landscape. We expect the candidate to collaborate closely with stakeholders across the company to realize our vision and develop a suite of tools that empower our analysts to succeed and deliver critical intelligence to our clients. We anticipate the candidate will embrace the current vision, take ownership of its evolution, and continuously drive improvements across our platforms.

roles and responsibilities

Key Responsibilities:

• Technical Leadership and Quality: Serve as a senior contributor to the Java development team, participating in code reviews, mentoring other developers, and driving improvements to software development processes and the quality of deployed projects.
• Platform Architecture and Development: Play a central role in designing and building scalable, resilient, next-generation applications, including the delivery of distributed, microservices-based Java backend services.
• Technology Evaluation and Integration: Evaluate and help select core technologies, ensuring interoperability of applications and utilizing various leading-edge technologies in a Linux/open-source, cloud-based environment.
• Cross-Functional Alignment: Work closely with executive leadership, intelligence analysts, and other engineering teams to ensure requirements are met, and to support the analysis team through a highly iterative, fast development cycle.
• Agile Delivery and Maintenance: Work in an Agile environment to continuously deliver improvements and new capabilities, and manage the maintenance of complex software projects, including version control, testing, release engineering, and deployment.

required qualifications

Required Qualifications:

• Bachelor's degree or foreign equivalent in computer science or related field.
• Solid understanding of object oriented design, design patterns, distributed systems and backend services.
• Experience in designing and delivering microservice based applications.
• 6+ years of experience developing in Java and JVM ecosystem.
• 3+ years of experience working in a team-driven Agile environment.
• Strong experience in Java 17, asynchronous development.
• Experience developing highly scalable microservice based applications.
• Messaging (e.g. Apache Pulsar, Kafka or AWS SQS).
• Lucene / OpenSearch, Elasticsearch or other full text indexing systems.
• Amazon AWS or Google Compute Cloud.
• Comfortable in a Linux / BSD environment.
• Strong analytical skills and ability to work independently and collaboratively.

About Q6 Cyber

Q6 Cyber was founded in 2016 to address a growing gap in how financial institutions detect and prevent fraud and cybercrime. As the dark web matured into a sophisticated marketplace for stolen data and financial crime activity, the founding team saw that financial institutions lacked visibility into where attacks were being planned and enabled. Q6 was built on the belief that monitoring threat actors and underground ecosystems directly would allow institutions to act earlier, reducing losses before fraud ever reaches customers or systems. The company's mission has remained focused on proactive intelligence that leads to real prevention, not just detection.

Q6 Cyber delivers a threat intelligence platform focused on monitoring the digital underground, including the dark web and other covert online channels where cybercriminals operate. The platform identifies early indicators of fraud, compromised data, and emerging attack methods, allowing customers to intervene before incidents occur. Unlike traditional security tools that surface alerts after an attack is underway, Q6 emphasizes actionable intelligence that fraud and security teams can operationalize quickly. Its solutions are designed primarily for banks, credit unions, and financial services organizations that need to protect assets, customers, and brand trust.

Growth Stage & Market Differentiation

Both profitable and private equity-backed, Q6 has established strong credibility in a market that highly values proactive fraud prevention. They have helped financial institutions identify and mitigate hundreds of millions of dollars in fraud losses, demonstrating clear and substantial ROI.

It serves a broad range of customers, from smaller financial institutions to large global banks, and operates in a market that remains underpenetrated, as many institutions have not fully adopted dark-web intelligence as part of their security stack.

In August 2025, Q6 Cyber received a strategic growth investment from Charlesbank Capital Partners. The funding is intended to support expansion of the product portfolio, go-to-market scale, geographic growth, and potential acquisitions. This is an exciting time to join the company due to the growth trajectory and aspirations, and associated equity upside.

Rooted in Entrepreneurialism

Q6 consists of a lean, mission-driven team working in a fast-paced, highly collaborative environment. Q6 embodies the following practices:

• Accountability in one's work
• Meritocracy and a flat organization
• Willingness to take on any challenge and dig into any project
• Building solutions with a real, tangible impact