“Senior backend engineer — Java/Spring Boot & distributed systems, now building with AI/LLM”
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Zain Ul Abideen is a Backend Development freelancer based in Islamabad, listed on LanceRank. Public record shows last updated 2026-10-02.
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· third-party-verified by LinkedInBackend engineer with 7+ years building high-throughput distributed systems in Java (Spring Boot), including data pipelines processing 1.2+ TB/day for telecom compliance and fraud detection at 25K–50K records/sec. Full-stack capable across Python, PHP/Laravel, and React, with hands-on AWS/Azure/GCP and observability tooling (Prometheus, Grafana, ELK). Currently expanding into AI/LLM engineering — RAG, LangChain, and AI-assisted development — to bring modern AI workflows into production backend s
Senior Backend & Data Engineer | Java Spring Boot · Apache Spark · NiFi | Building High-Throughput Systems at Scale
I'm a backend and data engineer with 7+ years of experience building systems that process and make sense of large-scale data — we're talking terabytes — across telecom and financial domains.My core stack is Java Spring Boot and Python, with deep experience in distributed data infrastructure including Apache Spark, Apache NiFi, and Kafka. I've designed and shipped production systems that handle high-throughput ingestion, real-time monitoring, and complex analytics pipelines — including pipelines processing 1.2 TB…
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Software Engineer
Dec 2025 — Present
REGGALIVerified via LinkedIn
Developing backend systems for processing and analyzing large-scale telecom data (terabytes) in near real-time - Building data pipelines and monitoring platforms that enable tel…
Software Engineer
Sep 2022 — Aug 2025
The ZealVerified via LinkedIn
- Building data engineering pipelines to ingest, normalize, and analyze financial datasets (SEC filings, XBRL, NASDAQ, and multi-country regulatory data) at terabyte scale - Dev…
Software Engineer
Jul 2022 — Nov 2025
IT Max GlobalVerified via LinkedIn
- Engineered backend systems managing hundreds of millions of records with high data integrity - Reduced dataset size by ~75% (900M to 200M records) through intelligent data lif…
Software Engineer
Dec 2019 — Jun 2022
DevAimsVerified via LinkedIn
▸ Developed and maintained backend systems using Java, Python, and PHP ▸ Built and delivered RESTful APIs for multiple client-facing products ▸ Optimized backend business logic…
PHP Developer
Aug 2018 — Nov 2019
DevAimsVerified via LinkedIn
▸ Developed server-side logic and business layer for web applications ▸ Established a strong foundation in backend architecture, MVC patterns, and database design
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Virtual University of Pakistan
Bachelor of Science
GitHub
@link2zainRepos
15
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