Senior Java Developer

ISO New England • Holyoke, MA

2d • Hybrid

About The Position

Join ISO New England's mission-critical software development team where your code helps maintain New England's electric grid reliability. As a Java Developer, you will both write great code and bridge the gap between business requirements and technical solutions while maintaining the systems that keep the lights on for millions of people across six states.

Requirements

• Bachelor’s degree in computer science, Engineering, or related technical field with 5+ years of professional Java development experience.
• Strong Requirements Analysis Skills - Proven ability to work directly with business stakeholders to gather, analyze, and document complex requirements
• Java Expertise - Deep knowledge of Java 17+, Spring, and common patterns like inversion of control and locality of behavior.
• Database Proficiency - Experience with SQL databases (Oracle, PostgreSQL) including complex queries, stored procedures, and performance tuning
• Resilience Under Pressure - Demonstrated ability to remain calm and effective during high-pressure situations, system outages, and tight deadlines
• Attention to Detail - Meticulous approach to code quality, testing, and documentation with a track record of delivering reliable, bug-free software
• Excellent Communication & Humor - Strong interpersonal skills with the ability to explain technical concepts to non-technical stakeholders while maintaining a positive, collaborative attitude

Nice To Haves

• More junior candidates with evidence of excellence available in a public git repository are also encouraged to apply.
• Experience with cloud platforms (AWS preferred) and containerization technologies (Docker, Kubernetes)
• Knowledge of energy/utility industry systems and operations
• Experience with message queuing systems (JMS, Apache Kafka) and event-driven architecture
• Familiarity with DevOps practices, CI/CD pipelines, and infrastructure as code
• Previous experience in regulated industries or mission-critical environments

Responsibilities

• Partner with stakeholders to uncover, analyze, and translate business needs into clear technical specifications and actionable development plans
• Design, develop, and maintain enterprise-grade Java applications using Spring Boot, Java Lambda’s, and modern development practices
• Own the code from development to production operations, joining a support rotation staffed by your teammates
• Write clean, maintainable code while conducting thorough code reviews and mentoring junior developers on best practices
• Work closely with cross-functional teams including business analysts, system operators, and infrastructure teams to deliver solutions that meet operational needs
• Identify opportunities to enhance system performance, reliability, and user experience while staying current with emerging technologies

Benefits

• A stable, mission-driven workplace where your impact truly matters
• A highly engaged work environment that values inclusion, collaboration, and employee safety and wellbeing
• Competitive compensation with a base salary + performance bonus
• Robust benefits package, including: Enhanced 401(k) and financial planning support
• Tuition reimbursement and professional development
• Wellness programs, including an onsite gym
• Flexible work hours
• Employee Business Networks
• Free coffee at our onsite café
• Distance-based relocation assistance available
• annual performance bonus
• comprehensive health insurance (medical, dental and vision)
• flexible spending and health savings accounts
• a 401(k) plan with generous employer contributions
• a student debt benefit
• life and AD&D insurance
• disability insurance
• critical illness and hospital indemnity benefits
• paid time off
• paid leave
• a wellness program
• an employee assistance program and other great company perks

What This Job Offers

• Job Type: Full-time
• Career Level: Senior