Principal Java Developer

RE Partners Consulting; New York (NY); On-site; USD 130,000 - 150,000; Full time

Benefits offered by this job

Referral bonus

Diverse and inclusive work environment

Job summary

RE Partners Consulting is seeking a Principal Java Engineer in New York. You will design and develop low-latency, high-throughput backend systems, build secure payment workflows, and collaborate with teams to ensure robust solutions. With over 10 years in Java development, you should have a strong focus on performance and cloud technologies like AWS. This hybrid role offers a competitive salary ranging from $130,000 to $150,000 annually, along with potential bonuses and benefits.

Qualifications

• 10+ years of experience in Java development with a focus on performance and memory optimization.
• Proficient in Mongo, Spring, and microservice-based architecture.
• Proven experience with low-latency, high-throughput applications (sub-millisecond response times a plus).

Responsibilities

• Design, develop, and optimize low-latency, high-throughput backend systems using Java.
• Build and maintain RESTful APIs and microservices that power secure payment workflows.
• Collaborate with DevOps, Product, and QA teams to ensure production-grade solutions.

Skills

Java development

Performance optimization

MongoDB

Spring

Microservice architecture

AWS services

Kubernetes

RESTful APIs

Low-latency applications

Communication skills

Tools

Red Hat OpenShift

Kafka

RabbitMQ

Job description

Who We Are

We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a trusted partner for some of the industry’s leading companies, our global talent has helped many clients achieve their goals.

The 3 G’s of RE

"Get Shit Done."

"Get Over Shit."

"Give a Shit."

Principal Java Engineer

We are seeking an experienced and opinionated Principal Java Engineer to join our high-performing engineering team, working on low latency, high-throughput systems in the payments processing domain. This hybrid role is based in the NY and offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you.

Key Responsibilities

• Design, develop, and optimize low-latency, high-throughput backend systems using Java.
• Build and maintain RESTful APIs and microservices that power secure payment workflows.
• Work with messaging standards and protocols commonly used in financial transactions.
• Deploy, monitor, and scale applications in Red Hat OpenShift and AWS cloud environments.
• Integrate with MongoDB and other NoSQL/SQL datastores for real-time data management.
• Collaborate with DevOps, Product, and QA teams to ensure production-grade solutions.
• Drive architectural changes, advocate for best practices, and provide mentorship to peers.
• Drive performance tuning, fault tolerance, and observability improvements across services.

Required Skills & Experience

• 10+ years of experience in Java development with a focus on performance and memory optimization.
• Proficient in Mongo, Spring and microservice-based architecture.
• Proven experience with low-latency, high-throughput applications (sub-millisecond response times a plus).
• Hands-on experience deploying applications on Red Hat OpenShift and/or Kubernetes.
• Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc.
• Strong communication skills and a bias toward action and opinionated design decisions.

Nice to Have

• Familiarity with messaging systems (Kafka, RabbitMQ, etc.)
• Prior experience in Payments Processing, financial services, or banking systems.
• Exposure to container security and performance tuning on OpenShift.
• Knowledge of payment gateways, ISO 20022, or SWIFT formats.
• Collaborative, fast-paced, and engineering-driven culture.
• Emphasis on engineering autonomy, architectural decision-making, and clean code

The base salary range for this position is $130,000.00 – $150,000.00 annually. This range represents the good-faith minimum and maximum salary the Company believes it would pay for this role at the time of this posting. Actual compensation will be determined based on factors such as experience, skills, qualifications, geographic location, internal equity, and business needs. This position may also be eligible for additional compensation, including bonuses, commissions, and/or benefits, as applicable.

Join Our Global Team

We invite you to apply for the position at RE Partners. Join us in shaping the future of business technology consulting and transforming the way organizations thrive in a digital world. As a diverse, woman-owned global business, we pride ourselves on keeping talent happy – our 7% attrition rate speaks volumes. Bring your talented friends along and earn a referral bonus.

Equal Opportunity Employer

We are an equal opportunity employer and welcome applications from all qualified individuals regardless of race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, disability, or veteran status.