> Markdown version of [/jobs/ext/1959418-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/1959418-senior-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Intersources Inc. - **Location:** Jersey City, NJ, United States - **Experience:** Expert - **Salary:** $26,000.0 - **Contract:** Temporary to permanent - **Skills:** Java (Programming Language), Computer Programming, Python (Programming Language), Performance Tuning, Ansible, Transaction Processing (Computing), Reliability of Systems, Information Technology - **Published:** August 6, 2026 - **Apply:** https://www2.jobdiva.com/portal/?a=62jdnw10t7d77ytz0lbaey9qxonk3b05a9tqw96rb7z6hlfo7xj79l9g6mp6aj2o&compid=0/jobs/31699161#/jobs/31699161 ## About the Role * Subject Matter Expertise in TACL, HPE NonStop (Tandem systems), and Prognosis. * Solid programming skills with the ability to write clean, efficient, and well-documented code. * Prior experience working in high-volume, high-availability financial transaction systems is highly desirable. Preferred Qualifications: * Strong hands-on experience with Python as a secondary programming skill. * Working knowledge of Java and Ansible for scripting and automation tasks. * Bachelor's degree in computer science, Information Technology, or a related field. * Strong analytical and problem-solving skills. * Ability to work independently as well as in a collaborative team environment. ## Description We are seeking a highly skilled and experienced professional to join our team for a mission-critical project focused on credit card transaction processing. This project handles high-value transactions made through e-commerce platforms and retail outlets, requiring real-time, secure, and highly available processing systems., * Develop and support applications involved in real-time credit card transactions, including swipes at POS and online purchases. * Work on a high-performance platform that manages large-scale transaction volumes. * Contribute to coding, troubleshooting, and performance optimization in a 24/7 transactional environment. * Collaborate with cross-functional teams to ensure seamless integration and system reliability. ## Related Videos - [Dev & Test in the Cloud? Deploy your cloud environments with Ansible & Terraform](https://www.wearedevelopers.com/videos/1607-dev-test-in-the-cloud-deploy-your-cloud-environments-with-ansible-terraform) - [Practical performance tuning for Serverless Java on AWS](https://www.wearedevelopers.com/videos/2075-practical-performance-tuning-for-serverless-java-on-aws) - [Photonic Computing: Programming a New Class of AI Accelerators (incl. Live Coding)](https://www.wearedevelopers.com/videos/100196-photonic-computing-programming-a-new-class-of-ai-accelerators-incl-live-coding) - [The Software Engineer 2030: From Coder To AI Orchestrator? - Patrick Schnell](https://www.wearedevelopers.com/videos/1825-the-software-engineer-2030-from-coder-to-ai-orchestrator-patrick-schnell) - [Embracing the Hybrid Cloud: Unlocking Success with Ansible](https://www.wearedevelopers.com/videos/932-embracing-the-hybrid-cloud-unlocking-success-with-ansible) - [From Punch Cards to AI-assisted Development](https://www.wearedevelopers.com/videos/611-from-punch-cards-to-ai-assisted-development) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for)