01 / API
Contracts & integrations
REST, OpenAPI, SOAP, JSON/XML, contract versioning, error handling, backward compatibility, idempotency, and integration resilience.
Open to professional networking · Krasnodar
Petr PisankoI design systems that are clear to evolve.
Systems Analyst focused on APIs, integrations, microservices, events, and data. I work across the full lifecycle — from requirements and modeling to development support, testing, and production rollout.
12+ yearsin analysis and process automation
Banking projectsVTB, Sber, and integration scenarios
API / IntegrationREST, SOAP, Kafka, PostgreSQL
What I do
Areas of expertise
System design at the intersection of business, architecture, integrations, and data.
02 / EVENTS
Asynchronous workflows
Designing Apache Kafka interactions: topics, events, message schemas, processing logic, and inter-service workflows.
03 / MODEL
Requirements & modeling
Requirements elicitation and formalization, UML Sequence/Activity, BPMN 2.0, PlantUML, User Stories, Use Cases, and team support through release.
Experience
Recent experience
A concise overview rather than a full CV.
Innotech Group
Systems Analyst · VTB projects
Designing microservice functionality and APIs for mobile and online banking; integrations with external and internal systems; REST/SOAP contracts, Kafka, PostgreSQL, data analysis, and delivery support through production.
Астон
Systems Analyst · Sber CIB / Aston Benefits
Requirements formalization, OpenAPI and SOAP, Kafka, ONVIF hardware integrations, BPMN/UML, RBAC, implementation validation, and technical solution presentations.
SMNM-VECO
Business Analyst / Radio Operator
Over 10 years in business process analysis and automation: requirements, technical specifications, vendor coordination, UAT, and end-to-end process design.
Results
Selected outcomes
Examples of system solutions and the practical value they delivered.
API / Digital Banking
Biometric signing
Designed integration flows and APIs for biometric document-signing scenarios in digital banking.
Value: an end-to-end digital document-signing flow.
Integration
Trading platforms
Integrated banking systems with external trading platforms: API contracts, end-to-end scenarios, and error handling.
Value: consistent inter-system interaction and predictable error handling.
Automation
Process automation
Specifications and models for permit-to-work, logistics, business travel, and training systems.
Value: greater process transparency and fewer manual operations.
Tools
Technology stack
Grouped by purpose to show not just technologies, but the context in which I use them.
01 Integration
RESTOpenAPISOAPJSON / XMLApache KafkaMicroservices
02 Data
PostgreSQLSQLPythonGreenplumAd-hoc analysis
03 Modeling
UMLBPMN 2.0PlantUMLUser StoryUse CaseRBAC
04 Tools / Infra
PrometheusGrafanaGitJiraConfluenceFigmaLinuxDockerProxmoxOpenWrt
AI / LLM
LLM & agentic development
I use AI tools as part of the engineering workflow for analysis, documentation, prototyping, and development.
01 / LLM
LLM-assisted analysis
Requirements decomposition, scenario validation, technical documentation, solution exploration, and acceleration of routine analysis.
02 / AGENTS
Agentic development
Context setup, task decomposition, code generation and modification, result verification, and iterative refinement to a working solution.
03 / PROTOTYPE
Prototyping & automation
Rapid prototypes, small utilities, and technical experiments with Python and LLMs, using prompt/context engineering to validate ideas.
LLM workflowsAgentic developmentCodexPrompt engineeringContext engineeringPython automation
Education
Two university degrees + continued engineering development
Economics and management; operation of oil and gas facilities. Additional training in Data Engineering, 1C development, and Greenplum for ad-hoc analytics and data marts.
Development
Practice beyond project work
I independently explore infrastructure and engineering topics to better understand operational context and real-world system constraints.
Beyond work
Engineering practice
Homelab & self-hosted
I run my own infrastructure with Proxmox, Docker, and LXC, and work with OpenWrt, network services, and Home Assistant. This gives me a deeper understanding of operations, networking, deployment, and system behavior outside idealized environments.
Contact
Open to professional networking
Feel free to reach out about systems analysis, integrations, interaction architecture, and technical projects.