Senior Java Engineer

United States Digital Space LLC; United States; Hybrid; USD 165,000 - 227,000; Full time

Benefits offered by this job

Medical Insurance

Flexible time off

Parental leave

Learning stipend

Volunteer program

Mental wellbeing

Retirement programs

Bonus opportunities

Job summary

the company in Foster City, CA is seeking an experienced Senior Java Engineer to design, build, and optimize high-performance backend services that power our billing and revenue systems.

You will collaborate with product, architects, and DevOps to deliver features with high availability and scalability in a hybrid work setting. This role requires 6–10 years in software development, strong Java and Spring Boot skills, and experience with microservices and cloud platforms.

Qualifications

• 6–10 years of professional software development experience.
• Strong proficiency in Java, Spring Boot, and Microservices design.
• Solid understanding of data structures, multithreading, and design patterns.
• Experience with message queues (Kafka/RabbitMQ) and databases (MySQL, PostgreSQL, MongoDB).
• Familiarity with CI/CD pipelines, Docker, Kubernetes, and cloud platforms (AWS/GCP).
• Excellent problem-solving and communication skills.

Responsibilities

• Design and develop scalable backend services using Java (11+), Spring Boot, and Microservices architecture.
• Build and maintain integrations with Kafka, AWS, and REST/gRPC APIs.
• Optimize system performance, reliability, and throughput for high-volume workloads.
• Participate in architectural design discussions and code reviews.
• Mentor junior engineers and contribute to improving engineering best practices.
• Collaborate with product and QA teams in an agile environment.

Skills

Java

Spring Boot

Microservices

Multithreading

Design patterns

Kafka

RabbitMQ

Databases

CI/CD

Docker

Kubernetes

Cloud (AWS/GCP)

Tools

Kafka

RabbitMQ

MySQL

PostgreSQL

MongoDB

Docker

Kubernetes

AWS

GCP

REST / gRPC

Job description

About the company

At the company, we help businesses grow smarter and adapt faster. Our platform powers modern business models — from subscriptions and usage-based pricing to AI-driven and outcome-based offerings — helping companies launch new products, automate complex billing, and unlock predictable, recurring revenue.

Location & Work Arrangements

This role is based in our Foster City, CA office and follows a hybrid work model. Team members are expected to work onsite three days per week to foster collaboration, innovation, and team connectivity.

This is not a fully remote position.

About the Role

We are looking for an experienced Senior Java Engineer to join our backend engineering team. You’ll be responsible for designing, building, and optimizing high-performance, scalable services that power our enterprise-grade billing and revenue systems.

You’ll work closely with cross-functional teams — product managers, architects, and DevOps — to deliver critical features with high availability and performance.

Key Responsibilities

• Design and develop scalable backend services using Java (11+), Spring Boot, and Microservices architecture.
• Build and maintain integrations with Kafka, AWS, and REST/gRPC APIs.
• Optimize system performance, reliability, and throughput for high-volume workloads.
• Participate in architectural design discussions and code reviews.
• Mentor junior engineers and contribute to improving engineering best practices.
• Collaborate with product and QA teams in an agile environment.

Required Qualifications

• 6–10 years of professional software development experience.
• Strong proficiency in Java, Spring Boot, and Microservices design.
• Solid understanding of data structures, multithreading, and design patterns.
• Experience with message queues (Kafka/RabbitMQ) and databases (MySQL, PostgreSQL, MongoDB).
• Familiarity with CI/CD pipelines, Docker, Kubernetes, and cloud platforms (AWS/GCP).
• Excellent problem-solving and communication skills.

Nice-to-Have

• Exposure to distributed systems, billing platforms, or large-scale data processing.
• Knowledge of Python/Go for microservices scripting or automation.
• Knowledge of ML, Big Data and AI.
• Open-source contributions or technical blogging.

Why Join Us

• Work on modern, high-impact systems used by global enterprises.
• Competitive compensation with performance bonuses.
• Flexible work environment and opportunities for career advancement.
• Collaborative culture with a focus on engineering excellence.

Benefits

the company offers a comprehensive total rewards package designed to support ZEOs’ wellbeing, growth, and flexibility. While specific offerings may vary by country, we typically provide:

• Competitive compensation, variable bonus and performance-based reward opportunities, and retirement programs
• Medical Insurance
• Generous, flexible time off, plus paid holidays, wellness days, and a company-wide year-end break
• Paid parental leave (including fully paid leave for eligible ZEOs, subject to local policy)
• Learning & development stipend to support ongoing growth
• Opportunities to volunteer and give back, including charitable donation matching where available
• Mental wellbeing resources and support

*Benefits may vary by location; details will be shared during the interview process

#ZEOLife at the company

ZEOs (our employees) are empowered to take ownership, challenge the status quo, and make a real impact. We:

• Collaborate deeply across teams and regions
• Learn constantly and iterate often
• Build an inclusive, high-performance culture where people feel inspired, connected, and valued

Our Commitment to an Inclusive Workplace

Think, be and do you.At the company, different perspectives, experiences, and contributions matter — everyone counts.

the company is proud to be an Equal Opportunity Employer committed to creating an inclusive environment for all. We do not discriminate on the basis of, and consider individuals seeking employment with the company without regard to, race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics.

The base pay details represent the annualized salary range for the posted position. While we share a comprehensive range, a candidate’s final base salary will fall within these guidelines and will be determined based on multiple factors including but not limited to: qualifications of the candidate, job related knowledge, prior related experience, specific and unique skills, the location of the role, internal equity and internal budget. Base pay is only one element of the company’s Total Rewards Package. Additional elements may also include bonus/variable compensation, equity and comprehensive benefits, more details found here.

Base Pay Details

$164,800—$226,600 USD