Principal Java Developer

Sigma Software; United States; Remote; USD 150,000 - 210,000; Full time

Benefits offered by this job

Remote role open across Europe and UK/

flexible hours

medical and legal support

learning opportunities

sports communities

Job summary

Sigma Software is seeking a principal-level Java engineer and architect to steer the technical direction of secure, large-scale digital services for public-sector clients. The role blends hands-on Java development with architecture leadership and early project work such as discovery and delivery planning.

You will lead technical discovery, design enterprise Java architectures, set standards, and translate business needs into scalable delivery plans.

Qualifications

• 5+ years of software engineering with significant leadership responsibilities.
• Expert-level Java and Spring Boot with strong microservices experience.
• Experience with AWS, Azure or GCP and cloud-native infrastructure.
• Strong architecture skills and ability to communicate trade-offs to customers and teams.

Responsibilities

• Lead technical discovery, tender and presales activities, and customer workshops.
• Design architectures for enterprise Java systems, cloud-native services, distributed platforms, and secure integrations.
• Define technical strategies, architecture standards, and implementation approaches.
• Estimate work and translate business needs into scalable delivery plans.
• Guide teams through project launch and early delivery, balancing scope, schedule, and quality.
• Support modernization of legacy platforms with security, reliability, and compliance needs.

Skills

Java

Spring Boot

Microservices

Cloud platforms

Kubernetes

Technical leadership

Client communication

Delivery planning

Education

Bachelor's degree in Computer Science or related field

Tools

Kubernetes

CI/CD tooling

Job description

Role overview

Shape the technical direction of secure, large-scale digital services for public-sector organizations. This principal-level role combines hands-on Java engineering and architecture with technical leadership, customer discussions, and early project work such as discovery, estimation, and delivery planning.

Responsibilities

• Lead technical discovery, tender and presales activities, and customer workshops.
• Design architectures for enterprise Java systems, cloud-native services, distributed platforms, and secure integrations.
• Define technical strategies, architecture standards, and implementation approaches.
• Estimate work and help translate business needs into scalable delivery plans.
• Guide teams through project launch and early delivery, balancing scope, schedule, and quality.
• Support modernization of legacy platforms while accounting for security, reliability, and compliance needs.

Requirements

• At least five years of software engineering experience with significant technical leadership responsibilities.
• Expert-level Java and Spring Boot skills, with strong knowledge of microservices architecture.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Working knowledge of Kubernetes and cloud-native infrastructure.
• Strong architecture skills and the ability to communicate technical trade-offs to customers and engineering teams.
• Experience guiding teams and making delivery decisions across business and technical needs.

Nice to have

• Experience in public-sector or other regulated environments.
• Background modernizing legacy systems or designing mission-critical integrations.

Benefits and work setup

• Remote role open across Europe and Ukraine.

The listed benefits include flexible hours, medical and legal support, learning opportunities, and sports communities.

• flexible hours
• medical and legal support
• learning opportunities
• sports communities