> Markdown version of [/jobs/ext/2297069-ab-initio-engineer-senior-developer-expert](https://www.wearedevelopers.com/jobs/ext/2297069-ab-initio-engineer-senior-developer-expert). 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). --- # Ab Initio Engineer - Senior Developer/Expert - **Company:** HR Giants - **Location:** Deerfield, IL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Batch Processing, Unix, Data Integration, Extract Transform Load (ETL), Performance Tuning, Standard Sql, Shell Script, Ab Initio - **Published:** August 29, 2026 - **Apply:** https://www.dice.com/job-detail/af48a0eb-f429-4362-9ee2-6872001e6ada ## About the Role We are seeking a Senior Ab Initio Developer/Expert with at least 7-8+ years of strong hands-on experience supporting and enhancing legacy Ab Initio applications. Key requirements: * At least 7-8+ years of hands-on Ab Initio development experience * Expertise in Ab Initio GDE, Co>Operating System, EME and Conduct>It * Strong experience maintaining, troubleshooting and modernizing legacy ETL applications * Proficiency in Unix/Linux, shell scripting and SQL * Experience with complex data integration, batch processing and performance optimization * Ability to analyze existing code, resolve production issues and implement enhancements * Strong communication and problem-solving skills * Must be willing to work on-site in Deerfield, IL * Must be able to work directly on our W2; C2C is not available ## Related Videos - [How building an industry DBMS differs from building a research one](https://www.wearedevelopers.com/videos/768-how-building-an-industry-dbms-differs-from-building-a-research-one) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Analytics in the Age of Agentic AI: A tour of ClickHouse and Langfuse](https://www.wearedevelopers.com/videos/100240-analytics-in-the-age-of-agentic-ai-a-tour-of-clickhouse-and-langfuse) - [The Time Paradox: Building Timezone-Safe Python/Django Applications](https://www.wearedevelopers.com/videos/1915-the-time-paradox-building-timezone-safe-python-django-applications) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [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) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)