Berlin, Germany · open to senior roles
Shazia Kausar
Senior Full Stack Software Engineer
I design, build and operate production backend systems in Java and Spring Boot. Card payments, telecom transactions, insurance claims and public EV charging: domains where an outage is a compliance event, not just an incident.
- Years in production
- 10+
- Companies
- 7
- Shipping since
- 2011
Tech stack
The tools I reach for, and the practices I bring with them.
Java
Spring Boot
Hibernate
Python
Angular
JUnit
PostgreSQL
MySQL
Oracle
MongoDB
Redis
Elasticsearch
Apache Kafka
RabbitMQ
Docker
Kubernetes
AWS
Azure
Terraform
GitHub Actions
Maven
Grafana
Prometheus
OpenTelemetry
Practices
- Architecture
- Data
- Quality
- Security
- Working with others
Projects
Work that shipped, with the technologies behind it.
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UK Uptime Compliance
MontaUptime export built to satisfy the UK public charge point regulations, giving operators the availability evidence the rules require. Deployed 23 November 2024.
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Reports Revamp
MontaLed the conversion of underused reports into a streamlined alerts-based system, so the information reaches large clients when it is worth acting on instead of sitting in a report nobody opens.
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Portal to HUB Migration
MontaMigrated core functionality from Portal to HUB for improved performance, scalability and technical alignment, without interrupting the operators depending on it.
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Data Exports
MontaExport APIs that let customers download their own operational data in XLSX format, replacing the support requests that used to stand between them and their numbers.
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A production learning platform delivered and maintained end to end: the backend services, the frontend, the deployment and the operations that keep it running.
Experience
Seven roles across payments, telecom, insurance and EV charging. Newest first.
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2026 — Present
Full Stack Developer · Freelance
Design, develop and maintain backend services in Java and Spring Boot, taking features from requirements analysis through design, testing, deployment and maintenance. Build REST APIs and third-party integrations with input validation, error handling and secure data-processing practice.
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2023 — 2025
Senior Java Backend Engineer · Monta
Built and maintained Java and Spring Boot microservices supporting business-critical distributed workflows. Developed event-driven services on Apache Kafka with failure handling, retries and concurrency accounted for. Optimised PostgreSQL and MySQL schemas, indexes and transaction workflows, deployed on Docker and Kubernetes, and improved observability through Grafana dashboards. Mentored engineers through code review.
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2021 — 2023
Senior Backend Engineer · MODIFI
Java and Spring Boot microservices for fintech and payment-processing applications, weighted toward transaction integrity and maintainable business logic. Implemented Kafka event processing for asynchronous integration between services, investigated production incidents and carried out root cause analysis.
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2019 — 2021
Advisory Software Engineer · Etisalat
Enterprise-scale backend applications and distributed systems supporting large-scale telecom transaction and integration workloads. Asynchronous processing and event-driven workflows, AWS and Docker deployments, and monitoring practice built on Grafana, logging, telemetry and alerting.
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2018 — 2019
Principal Software Engineer · InfoTech Pvt. LTD
Led full-stack delivery of regulatory-compliant financial systems aligned to State Bank of Pakistan guidelines. Architected transaction-processing features including JPOS message formats for secure, standards-compliant financial integrations. Java and Spring with JSF and JPA, on Tomcat and Oracle, verified with JUnit.
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2018
Lead Software Engineer · INFOGISTIC Pvt. LTD
Led technical architecture and full-stack development for property listing and transaction platforms covering sales, purchase and back-office operations. Defined the stack, automated back-office processes with the Activiti framework, and added search and indexing with Apache Solr.
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2011 — 2017
Principal Software Engineer · NETSOL Technologies Inc
Progressed from Software Engineer to Principal, leading Agile delivery of financial and insurance platforms for clients across the UK, USA and Australia. Architected 5+ large-scale insurance systems, improving transaction processing efficiency by up to 30% and reducing claims resolution time by 25%. Led migration of legacy platforms to Java, J2EE and Spring, reducing technical debt by 40%.
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Education
Bachelor of Computer Science
Punjab University College of Information Technology
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Certification
Oracle Certified Professional, Java Programmer
Java SE 6 · Oracle Corporation
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Conference
KotlinConf 2024
JetBrains · Copenhagen, Denmark
Reading
The latest writing on Java, Spring, Kafka and distributed systems, pulled live from dev.to.
Get in touch
Open to senior backend and architecture roles, and to freelance work where the system has to hold up. Email is the fastest way to reach me.
shaziakausarwork@gmail.com- LinkedIn shazia-kausar
- Phone +49 174 251 4221
- Location Berlin, Germany
- Résumé Download PDF