Senior Software Engineer - onsite

Job Description

We are seeking an experienced Senior Software Engineer to lead the design and development of scalable, reliable software systems. This role is ideal for an engineer who can operate independently, own complex technical initiatives, and mentor others while partnering closely with product and engineering leadership.

The Senior Software Engineer plays a key role in system design, technical decision-making, and maintaining high engineering standards across the organization.

Responsibilities

• Design, develop, test, and maintain scalable software applications and services
• Own complex features and systems from design through production
• Contribute to and lead system architecture and design discussions
• Write high-quality, maintainable, and well-tested production code
• Diagnose and resolve complex technical and production issues
• Mentor junior and mid-level engineers and provide technical guidance
• Participate in code reviews, enforcing engineering best practices
• Collaborate with product, design, and cross-functional teams to deliver solutions
• Drive improvements in performance, reliability, security, and scalability

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)
• 5–8 years of professional software engineering experience
• Strong proficiency in one or more programming languages such as Java, Python, JavaScript/TypeScript, Go, C#, or similar
• Solid understanding of system design, data structures, algorithms, and design patterns
• Experience owning and operating production systems
• Strong experience with version control systems (Git) and collaborative development workflows
• Experience building and scaling distributed systems or microservices
• Proficiency with APIs, service integrations, and databases (SQL and/or NoSQL)
• Experience with cloud platforms (AWS, Azure, or GCP)
• Familiarity with CI/CD pipelines, automated testing, and DevOps practices
• Experience working in Agile or iterative development environments

About the Organization Eccalon provides global solutions to the most challenging technological issues of the 21st-century, and our evolving portfolio spans five major markets: Machine Learning, Cybersecurity, Aerospace & Defense, Material Sciences, Advance Manufacturing, Sports Science, Biotechnology, and Health & Life Sciences.

Why Join Us?

Eccalon's Executives foster a supportive work environment allowing our teams to thrive, and have a fierce dedication to innovation, security, and people. Our culture is built on inclusion, teamwork, trust, and we are committed to offering career advancement opportunities to all employees.

Encouraging a healthy and balanced life, we offer an extensive benefits package to support the wellness of our employees and their families. You will be joining a team of innovators, working with cutting edge technologies, supporting mission critical projects, and making an impact.

Apply today to advance your career!

EOE Statement Eccalon provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

EEO is the law.