Senior QA Engineer · QA Lead

Ruslan Peyter

11+ years in fintech & digital banking quality assurance

I make sure fintech software ships right —
before your users find out it doesn't.

From API contracts and database integrity to cloud monitoring and core banking integrations — I own quality end-to-end so your team can ship with confidence.

Get in Touch Download Resume

What I Bring

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11+ Years in Fintech QA

Deep hands-on experience in digital banking — from credit union platforms to mobile apps — means I understand the domain, not just the tools. I catch issues that generic QA misses.

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End-to-End Testing Ownership

I own quality across the full stack — API contracts, database integrity, cloud logs, and UI — so nothing falls through the cracks between layers.

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Fast Ramp-Up, Low Overhead

Multilingual (EN / UK / RU), SAFe® certified, and experienced with distributed teams. I integrate quickly, communicate clearly, and start adding value from day one.

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Quality as a Business Outcome

I connect QA work to real business impact — financial data accuracy, user trust, and release confidence — not just bug counts and test coverage metrics.

Want the full picture?

Leadership · Strategy · Case Studies
& much more

My full profile covers QA strategy, business impact, CI/CD integration, stakeholder communication, testimonials, and detailed case studies.

View Full Profile →

Skills

Technical expertise

QA Methodology and Skills

AI-Powered Testing Functional End-to-End (E2E) Exploratory Performance Compatibility Localization Regression Integration Mobile & Web Testing Bug Reporting JIRA Agile / SAFe Test Planning

Core Banking Platforms

Symitar Quest Corelation KeyStone Credit Union Systems Digital Banking

Cloud / AWS

EC2 S3 RDS DynamoDB CloudWatch CloudTrail IAM VPC SNS ELB Route53 SageMaker Glacier Firebase Log Analysis Environment Monitoring

Database & SQL

MS SQL Server PostgreSQL Data Integrity Testing Schema Validation Business Logic Queries Referential Integrity

API Testing

Postman Swagger / OpenAPI REST JSON OAuth 2.0 HTTP/HTTPS Status Code Analysis

Automation & Infrastructure

Playwright TypeScript Shell / Bash Linux Docker Compose

Languages

English — Fluent Ukrainian — Native Russian — Fluent

Case Studies

Project highlights

Digital Banking · Mobile

Mobile Banking App
Regression Suite

iOS / Android

Goal Build a repeatable regression suite for a credit union mobile app ahead of a major core banking migration.

Impact Designed 400+ test cases covering account management, transfers, and bill pay across 6 device profiles.

Regression cycle time cut by 35%

Core Banking · API

Symitar Quest
Integration Testing

REST API

Goal Validate all data flows between the digital banking platform and Symitar Quest core banking system after a major version upgrade.

Impact Covered 120+ API endpoints, validated SQL data integrity across member accounts, loans, and shares.

12 critical defects caught pre-release

Fintech · Cloud

AWS Environment
Monitoring & Triage

AWS

Goal Establish a systematic approach to log analysis and environment monitoring for a multi-tenant banking SaaS platform.

Impact Implemented CloudWatch log queries and S3 audit checks that cut mean time to root cause from hours to minutes.

MTTD reduced by ~60%

Certifications

Professional credentials

Scaled Agile, Inc.

Certified SAFe® 5 Practitioner

Scaled Agile Framework · Active Certification

Udemy

API and Web Service Introduction

API Testing Specialization · Completed

Domain Expertise

Fintech & Digital Banking QA Specialist

11+ Years Hands-on Industry Experience

Let's build
reliable software
together.

I'm open to Senior QA / Lead roles in fintech, banking, or SaaS. I bring domain depth, sharp testing instincts, and 11+ years of hands-on experience across the full QA lifecycle.

Feel free to reach out directly — I respond to all serious inquiries.

✉

Email ruslan@peyter.eu

Telegram @RuslanPeyter

WhatsApp Scan QR to chat

LinkedIn linkedin.com/in/ruslanpeyter

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Resume Download CV (.pdf)