Olga Timofeeva
Thirroul,NSW
Summary
Resourceful engineer experienced in evaluating and assessing client requirements and implementing infrastructure to solve identified problems. Harnessed IaC and software engineering technologies to create scalable and user-centric systems. Strong negotiator with excellent value-driven solutions.
Overview
21
21
years of professional experience
1
1
Certification
Work History
SYSTEMS [CLOUD] ENGINEER
CBA
05.2023 - Current
- Implementing IaC templates and blueprints in CloudFormation to migrate on-prem applications to AWS (RDS Aurora, S3, EC2, Lambda, SSM Parameters, and others)
- Implementing Custom AMI with AWS Image Builder
- Enhanced cloud infrastructure efficiency by implementing advanced automation techniques and tools.
- Contributed to product improvement initiatives by providing valuable insights based on hands-on experience with AWS CloudFormation, Python boto3 SDK, bash scripting.
- Implementing CI/CD AWS CodePipeline pipelines to provision infrastructure in a standard way
- Used metrics to monitor application and infrastructure performance.
- Identified, analyzed and resolved infrastructure vulnerabilities and application deployment issues.
- Provided technical support to internal stakeholders, diagnosing and resolving complex issues related to the organization''s cloud environment.
- Evaluated new cloud technologies and recommended solutions that aligned with organizational goals and objectives.
- Understood client needs and objectives by conducting proactive customer and data analysis.
- Reduced server downtime by proactively monitoring cloud resources and addressing potential issues before they escalated.
- Developed custom scripts for automating routine tasks, increasing team productivity and reducing manual errors.
- Provided technical leadership and delivered innovative products and services to address customer specific requirements.
- Mentored junior engineers on industry best practices, fostering a culture of knowledge sharing within the team.
- Wrote and maintained custom scripts to increase system efficiency and performance time.
- Managed and monitored installed systems for highest level of availability.
- Closely collaborating with Solution Architects, Designers, Network Engineers, Application Developers, and Project Managers.
SENIOR SOLUTIONS DESIGNER
WESTPAC INSTITUTIONAL BANK
06.2018 - 07.2022
- Managed configuration, upgrade implementation, testing, business sign-off process, and deployment for vendor system's risk and limits control modules, resulting in approximately 50,000-$100,000 cost savings on vendor build
- Took ownership of vendor simulation model upgrade, performed UAT programmatically, automated deployment, and presented results to executive managers and directors in Powerpoint and Jupyter notebooks saving $5,000-$10,000 on vendor fees per year
- Developed 6 custom reconciliations in Python to verify data migration from the legacy system to the new vendor solution to make production Go/No-Go deployment decisions.
CONTRACTOR FOR BIG 4 AUSTRALIAN BANKS
09.2013 - 04.2018
SUBJECT MATTER EXPERT
SBERBANK-TECHNOLOGY
04.2012 - 07.2013
- Interviewed key stakeholders and documented project scope, business, and functional requirements for critical $95M budget program to onboard best-fit vendor solutions for 3 credit risk management systems
- Formulated challenges and conducted workshops with 5+ vendors to demonstrate required capabilities met business objectives
- Increased business users' satisfaction by handling UAT execution, devoting special attention to accurate daily progress reports with sharp simple visualizations, and promptly addressing found issues to vendor representatives.
SENIOR ICT ANALYST, ICT ANALYST
LUXOFT
05.2010 - 04.2012
- Provided Support Level 3 for Oracle DB, Oracle PL/SQL, and 30+ Informatica ETL workloads
- Found root cause and resolved 50+ production issues under SLA
- Corrected data issues on the flight on the server side by using Perl regular expressions as files were too big to open locally
- Monitored Oracle DB table spaces and indices, hard drive free space, and ran data archiving procedures
- Coordinated SL2 and SL1 team members to ensure reliability of risk exposure metrics calculations.
SENIOR ANALYST PROGRAMMER
NETCRACKER TECHNOLOGY
04.2009 - 05.2010
- Developed high-performance SQL, PL/SQL, and Java code for BSS/OSS platform that provisioned network infrastructure from inventory pools as well as IP address allocation for new customers for Tier 1 and Tier 3 telecom providers in the US, Europe, and New Zealand
- Delivered implementation specifications for developers while collaborating directly with Solution Architects, Sales Managers, and Project Managers
- Led and mentored teams of 3-7 software engineers distributed across 2-4 time zones
- Performed code reviews and verified that functionality and respective APIs to ensure reliability and performance efficiency of production workloads.
SOFTWARE ENGINEER
PRONIT, JSC | ISO TECHNOLOGIES, LLC
12.2005 - 03.2009
- Performed SWOT analysis for legacy system replacement after interviewing 15+ stakeholders including executive managers, sales team, hardware engineers, and inventory management team
- Derived 20+ Use Cases, functional and UI/UX requirements, and directed new application design
- Assisted Oracle DBA in designing a new database schema and data migration from legacy Microsoft SQL database to Oracle 9i
- The new solution streamlined sales and item reservation processes, made inventory operations transparent, and prevented overselling issues; these features gained 100% satisfaction from end users.
SOFTWARE ENGINEER
SVYAZINFORM (LOCAL ISP)
12.2003 - 12.2005
- Configured physical networking infrastructure: routing servers, switches, and hubs
- Installed Unix FreeBSD and required shell and Perl scripts, configured routing tables, UDP/TCP/IP protocols
- Assembled routing servers from memory planks, hard drives, CPU, and other parts to withstand the required networking load
- Provisioned subnets, configured CIDR blocks, custom domains, DNS, and TCP/IP protocols for the customers
- Provided on-call customer support and fixed networking issues for the clients
- Visited points of presence and connected to the routing servers for troubleshooting and debugging when outages occurred via Unix terminal.
Education
MATHEMATICIAN, COMPUTER SCIENCE -
VOLGOGRAD STATE UNIVERSITY
07.2003
Skills
- Infrastructure as Code
- DevOps principles
- Software engineering with Python
- Scripting languages: bash, Python, Ant
- CI/CD tooling: AWS CodePipeline, GitHub Actions, Atlassian Bamboo
- Cloud Automation
Certification
- AWS Learning: Serverless - Amazon Web Services (AWS)
- AWS Certified Solutions Architect - Associate - Amazon Web Services (AWS)
- AWS Certified Cloud Practitioner - Amazon Web Services (AWS)
- Oracle PL/SQL Associate (2005)
TECHNICAL BLOG
https://olley.hashnode.dev/
Training
- DIGITAL TRAINING CLOUD, Implemented highly-available resilient 3-tier architecture with disaster recovery options on AWS EC2, RDS, EFS, and S3 Built serverless solutions that scale automatically using AWS CloudFront, S3, API Gateway, DynamoDB, Lambda, SQS, SNS, and Amazon Cognito, 10/01/22, 12/01/22
- AWS SOLUTIONS ARCHITECT BOOTCAMP, 10/01/22, 12/01/22
Timeline
SYSTEMS [CLOUD] ENGINEER
CBA
05.2023 - Current
SENIOR SOLUTIONS DESIGNER
WESTPAC INSTITUTIONAL BANK
06.2018 - 07.2022
CONTRACTOR FOR BIG 4 AUSTRALIAN BANKS
09.2013 - 04.2018
SUBJECT MATTER EXPERT
SBERBANK-TECHNOLOGY
04.2012 - 07.2013
SENIOR ICT ANALYST, ICT ANALYST
LUXOFT
05.2010 - 04.2012
SENIOR ANALYST PROGRAMMER
NETCRACKER TECHNOLOGY
04.2009 - 05.2010
SOFTWARE ENGINEER
PRONIT, JSC | ISO TECHNOLOGIES, LLC
12.2005 - 03.2009
SOFTWARE ENGINEER
SVYAZINFORM (LOCAL ISP)
12.2003 - 12.2005
MATHEMATICIAN, COMPUTER SCIENCE -
VOLGOGRAD STATE UNIVERSITY
- AWS Learning: Serverless - Amazon Web Services (AWS)
- AWS Certified Solutions Architect - Associate - Amazon Web Services (AWS)
- AWS Certified Cloud Practitioner - Amazon Web Services (AWS)
- Oracle PL/SQL Associate (2005)
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