Software Engineer – Full Stack Developer, Mainframe

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🔥 0 minutes ago

🔔 Pennsylvania – Remote

🔔 Pennsylvania – Remote

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

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Sigma Systems

WebsiteLinkedInAll Job Openings

201 - 500 employees

📡 Telecommunications

⚡ Energy

☁️ SaaS

💰 $11M Venture Round - Tribold on 2009-01

Telecommunications • Energy • SaaS

Sigma Systems is a software company that provides cloud-native, API-driven BSS/OSS, product catalog, CPQ and order orchestration solutions for communications service providers and energy/utilities companies. It offers modular, TMF-compliant components and managed services — including AI-enabled automation and data-driven tools — to help operators modernize billing, monetization, and customer fulfillment processes with a SaaS and cloud-focused delivery model.

📋 Description

• Design and create engineering specifications for enterprise software applications • Design, develop, and maintain high-quality code meeting established coding standards • Perform peer code reviews and promote software engineering best practices • Evaluate business requirements and recommend scalable technical solutions • Participate in Agile/Scrum ceremonies, including sprint planning, backlog refinement, daily stand-ups, sprint reviews, and retrospectives • Create user stories, Definition of Done, acceptance criteria, estimates, and development tasks using Jira, RTC, or similar Agile tools • Monitor project schedules and communicate progress, risks, blockers, and technical issues to development leads and Scrum Masters • Translate business requirements, prototypes, and user stories into production-ready software applications • Participate in all phases of the software development lifecycle, from idea generation and business analysis through design, development, testing, deployment, and production support • Mentor junior software engineers and support their technical development • Design, develop, and deliver scalable enterprise software solutions supporting digital healthcare platforms

🎯 Requirements

• Bachelor's Degree in Computer Science, Computer Engineering, or a closely related field required • Master's Degree in a related field preferred • U.S. Citizenship required; only U.S. Citizens are eligible to apply • Hands-on Mainframe development experience, including COBOL • Completion of the Glider Assessment – Senior Application Developer (Mainframe) (Highmark-10165051) prior to submission • 3+ years of experience designing scalable, highly available enterprise applications using algorithms, data structures, and design patterns • 3+ years of experience with one or more of Java, Python, JavaScript, ACE, IIB/ITX, or Informatica • Experience with at least two of React, Angular v4+, Node.js, NoSQL databases, HTML5, CSS, GCP, or AWS • 3+ years of experience developing and consuming RESTful web services using REST, HTTPS, and JSON • Strong experience with Agile/Scrum methodologies • Strong understanding of the SDLC, including coding standards, unit testing, code reviews, source control, build processes, testing, deployment, and operations • Proven experience designing and implementing large-scale enterprise or customer-facing applications • Experience mentoring junior software engineers • Ability and willingness to learn new programming languages and technologies • Demonstrated ability to achieve stretch goals in an innovative, fast-paced environment • Strong ownership, accountability, urgency, and problem-solving abilities • Passion for improving user experience and application usability

🏖️ Benefits

• 100% remote work • Monday–Friday, normal business hours • Occasional travel only, up to 25%