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Fiverr Pro
Nederlands
$
USD
Ahmed Sheraz
@sheraz01234
Oracle and SQL Developer, Excel VBA Expert
Pakistan
Engels
Over mij
Oracle-certified database developer with 14+ years of experience at a fintech solutions company (bank card systems) and at denim and fabric manufacturers (ERP systems), plus 160+ Fiverr orders with a 5.0 rating. I write and optimize SQL queries, stored procedures and triggers (Oracle, MySQL, SQL Server, PostgreSQL), build Oracle Forms, Reports and APEX apps, and automate Excel and MS Access with VBA. Clean, commented code, clear communication and fast replies. Send me your requirement and I'll get back to you with a plan.
Skills
Ahmed Sheraz
offline •
Bekijk mijn diensten
Formules en macro's
I will automate excel with vba macros and custom userforms
Database development
I will write, fix and optimize complex sql queries for mysql, oracle, postgresql
Portfolio
Werkervaring
Programmer Analyst
Fintech • Fulltime
Sep 2022 - Present • 4 yrs 1 mo
• Support and enhance the Oracle database layer of TSYS Prime, a card management system used by banks for card issuing and merchant acquiring. • Analyze and resolve production database issues affecting transaction and batch processing, working to strict service-level timelines. • Develop and modify PL/SQL packages, procedures, functions and triggers based on functional specifications from business analysts and bank clients. • Tune slow queries and batch jobs by reviewing execution plans, rewriting SQL and recommending index changes. • Write and test data extracts and data correction scripts while protecting data integrity and following changecontrol procedures. • Track work in JIRA, manage code in SVN and coordinate releases with QA and support teams across time zones.
119 Reviews
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Specificering van de beoordeling
- Communicatieniveau van de freelancer
- Aanbevelingswaardig
- Dienst zoals beschreven
1-5 van 119 reviews
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referenceframe
Verenigde Staten
He is amazing!! Extremely bright, patient, flexible, kind and communicative. Everything you want in a developer.
Nuttig?
nataliyarahoza
Wit-Rusland
Lopende samenwerking
Ahmed did an amazing job, delivering high-quality work that exceeded my expectations.
Nuttig?
dynasty2012
Barbados
The seller was very responsive and completed the requests very quickly and efficiently. I would highly recommend this seller.
Nuttig?
bryan_hill
Verenigde Staten
I am very please with his work. When anything didn't work he make additional changes and relayed all of his updates to me. He was great to work with and i plan on working with him more.
Nuttig?
nataliyarahoza
Wit-Rusland
Lopende samenwerking
Very talented, fast and ultra communicative. Recommend!
Nuttig?
