Senior Java Developer

About Client

The client is a global consulting, technology, and digital firm specializing in the financial services industry. Established in 2001, the company provides innovative solutions to help clients navigate digital transformation, enhance operational efficiency, and achieve strategic objectives. With a focus on banking, capital markets, and insurance, it leverages cutting‑edge technologies such as blockchain, artificial intelligence, and data science to deliver customized IT solutions and business consulting services.

The company's commitment to innovation, combined with its industry expertise, positions it as a leader in driving technological advancements and helping financial institutions stay competitive in a rapidly evolving market.

$40-$65/Hr

We are seeking a highly skilled Lead Java Developer to join our team. The ideal candidate will be a strong core Java developer with extensive experience in microservices, multithreading, Spring Boot, SQL, and large‑scale databases. A background in financial services is highly preferred.

• Design, develop, test, and maintain robust Java applications and microservices that meet business requirements.
• Architect and implement scalable, high‑performance microservices using Spring Boot and related technologies.
• Handle multi‑threaded programming, concurrency control, and performance tuning to ensure low‑latency, reliable systems.
• Collaborate with frontend, backend, and data teams to define APIs and data models; ensure secure, well‑documented interfaces.
• Build and optimize SQL queries; work with large, complex databases and data structures.
• Implement CI/CD pipelines, code reviews, and automated testing to ensure quality and faster delivery.
• Participate in architectural discussions, provide technical leadership, and mentor junior developers.
• Adhere to best practices for security, reliability, and compliance within a financial services context.
• Troubleshoot production issues, perform root‑cause analysis, and implement durable fixes.

• Strong Core Java expertise (Java 8/11/17 with a deep understanding of JVM internals, garbage collection, and performance tuning).
• Microservices architecture experience; design and implement scalable services.
• Multithreading and concurrency mastery; thread‑safe programming and synchronization techniques.
• Spring Framework; extensive experience with Spring Boot, Spring Data, Spring Cloud, and related ecosystems.
• SQL proficiency with hands‑on experience optimizing complex queries; familiarity with relational databases (e.g., Oracle, Postgre
  
  SQL, MS SQL).
• Experience working with large databases and data warehousing concepts.
• Financial services domain experience is highly preferred (trading, risk, settlements, market data, regulatory reporting, etc.).
• Strong problem‑solving skills, attention to detail, and the ability to work in a fast‑paced environment.
• Excellent communication and collaboration skills; comfortable in a multinational, matrixed environment.

• Experience with containers and orchestration (Docker, Kubernetes).
• Familiarity with messaging systems (Kafka, Rabbit
  
  MQ) and event‑driven architectures.
• Exposure to cloud platforms (AWS, GCP, Azure) and related security practices.
• Knowledge of data security, encryption, and regulatory compliance in finance.
• Certification or coursework related to Java, Spring, or financial technologies.

• Prior consulting or client‑facing experience.
• Contribution to open‑source projects or internal tech communities.
• Advanced degree in Computer Science, Engineering, or a related field.

ApTask is a leading global provider of workforce solutions and talent acquisition services, dedicated to shaping the future of work. As an African American‑owned and Veteran‑certified company, ApTask offers a comprehensive suite of services, including staffing and recruitment solutions, managed services, IT consulting, and project management. With a focus on excellence, collaboration, and innovation, ApTask provides unparalleled opportunities for professional growth and development.

As a member of the ApTask team, you will have the chance to connect businesses with top‑tier professionals, optimize workforce performance, and drive success across diverse industries. Join us at ApTask and be part of our mission to empower organizations to thrive while fostering a diverse and inclusive work environment. Applicants may be required to attend interviews in person or by video conference.

In addition, candidates may be required to present their current state or government issued g each interview.