International Software Systems, Inc.

About the Company

International Software Systems, Inc. (ISSI) stands as a prominent IT services provider in Greenbelt, Maryland. Our mission is to deliver exceptional solutions to a diverse range of clients, including Federal, State, Local, and Commercial organizations. With a remarkable history spanning 28 years, ISSI has made significant strides in the industry, establishing offices in California, Florida, and Dallas and offshore facilities in Hyderabad, India, to expand our global reach.

Client satisfaction is our paramount priority at ISSI. We take immense pride in being recognized as an Innovative, Strategic, Sustainable, and Insightful partner by our clients, rather than simply a vendor. Our guiding principle is elegantly simple "Customer First, Cheers Later!"

As a minority-owned small business, we exemplify a commitment to diversity and inclusivity. Our dedication to quality and excellence is evident through our ISO 9001:2015 and 27001:2013 certifications, as well as our CMMI Level 3 certification, attesting to our adherence to industry-leading standards and best practices.

We efficiently cater to various governmental and commercial projects through GSA MAS Schedule, CMS-SPARC, Seaport-e, MD State CATS+, Prince George's CATS, WSSC CATS, CIO-SP3, ITSSC II, and other channels. Additionally, our Minority Business Enterprise (MBE) certifications in Maryland and Virginia solidify our standing as a trusted and reliable partner in the industry.

At ISSI, we thrive on building strong relationships with our clients, always aiming to surpass their expectations by providing innovative solutions that drive their success. We believe in staying ahead of the technological curve, enabling us to adapt and flourish in an ever-evolving IT landscape.

Listed Jobs

Company Name

International Software Systems, Inc.

Job Title

Senior Java Software Engineer

Job Description

Job Title: Senior Java Software Engineer Role Summary: Design, develop, deploy, and maintain scalable enterprise applications as part of a cross‑functional Agile team, leveraging Java, Spring Boot, Angular, and relational databases. Expactations: Deliver high‑quality code, mentor junior developers, participate in architecture design, ensure performance and security, and drive continuous Agile process improvement. Key Responsibilities: - Architect and build Java microservices using Spring Boot, Hibernate/JPA, and JDBC. - Create and version RESTful APIs following Twelve‑Factor App and REST best practices. - Develop front‑end components with Angular 9+, TypeScript, HTML, CSS, and JavaScript. - Design and optimize PostgreSQL/Oracle database schemas, queries, and indexes. - Collaborate with product owners, QA, and DevOps in Scrum ceremonies and backlog refinement. - Review code, enforce coding standards, and mentor team members. - Monitor, troubleshoot, and improve application performance and reliability. - Document architecture, design decisions, and API specifications. Required Skills: - 8+ years of full‑stack development with Java, Spring Boot, Angular, TypeScript, Node.js. - Deep expertise in Java/J2EE, Hibernate, JPA, JDBC. - Experience with relational DBs (PostgreSQL, Oracle); schema design and performance tuning. - Strong grasp of OOP, RESTful API design patterns, Twelve‑Factor App methodology. - Front‑end proficiency: Angular 9+, TypeScript, HTML, CSS, JavaScript (libraries such as jQuery or YUI are a plus). - Familiarity with microservices architecture and cloud‑compatible services. - Hands‑on Agile experience (Scrum/Kanban) and tools (JIRA, VersionOne, or similar). - Excellent communication, problem‑solving, and mentoring skills. Required Education & Certifications: - Bachelor’s degree in Computer Science, Engineering, Mathematics, or a related field (advanced degree may substitute for experience). - Industry certifications such as Oracle Certified Professional, Java SE, or Spring Professional are preferred but not mandatory.

Towson, United states

On site

Senior

12-11-2025

Company Name

International Software Systems, Inc.

Job Title

Full Stack Engineer

Job Description

Job Title: Full Stack Engineer Role Summary: Senior full‑stack professional responsible for end‑to‑end design, development, deployment, and maintenance of enterprise‑scale applications in a cloud‑native environment. Drives architecture, coding, and DevOps practices across multiple stages of SDLC. Expectations: - 12+ years of proven full‑stack development experience. - Current Microsoft/Azure certifications (e.g., AZ‑900, AZ‑204, AZ‑303/304). - Demonstrated expertise with .NET Core, ASP.NET, REST APIs, relational databases, Angular/React, JavaScript, and cloud services. Key Responsibilities: - Analyse requirements, architect solutions, and deliver scalable, secure applications. - Design, develop, test, and maintain backend services, APIs, and databases. - Build responsive front‑end interfaces using Angular, React, or similar frameworks. - Create and manage Azure‑based data pipelines (Azure Data Factory) and cloud‑native services. - Implement microservices architecture and containerization (Docker, Kubernetes). - Apply DevOps principles: CI/CD pipelines, automated testing, and infrastructure as code. - Collaborate with architects, QA, DevOps, and product owners to ensure alignment. - Diagnose and resolve production issues, performing root‑cause analysis. - Conduct code reviews, uphold coding standards, and enforce best practices. Required Skills: - .NET Core / ASP.NET, RESTful API design - SQL Server / relational database design - JavaScript, Angular, React, jQuery - Microsoft Azure services (compute, storage, functions, data factory) - Microservices, Docker, Kubernetes, CI/CD, DevOps tooling (Azure DevOps, GitHub Actions) - Experience with Salesforce integration (preferred) - Strong problem‑solving, communication, and collaboration abilities Required Education & Certifications: - Bachelor’s degree in Engineering, Computer Science, Information Systems, Business, or related field. - Latest Microsoft Azure certifications (AZ‑900/204/303/304).

New york, United states

On site

Senior

26-12-2025