openfintechio/openfintech
Sep 2025 – Jul 2026
11 Months active
Languages Used
PythonSQLJSONJavaScript
Technical Skills
API IntegrationBackend DevelopmentPayment Gateway IntegrationAPI integrationbackend developmentdata management
Valeriy Pysmennyi
PROFILE
Valeriy Pysmennyi
Over 11 months, contributed to the openfintechio/openfintech repository by building and expanding payment gateway features, integrating new providers, and enhancing payout and reconciliation workflows. Focused on backend development and API integration using JavaScript, Python, and JSON schema design, the work enabled support for diverse payment methods, currencies, and payout options, including SEPA and cryptocurrency. Delivered robust data validation, internationalization-ready input handling, and compliance-driven transaction modeling. Improvements to provider onboarding, asset management, and webhook-driven reconciliation broadened merchant coverage and streamlined settlement processes. The engineering approach emphasized modular configuration, traceable commits, and scalable architecture to support evolving payment and payout ecosystems.
Overall Statistics
Feature vs Bugs
94%Features
Repository Contributions
62Total
Bugs
1
Commits
62
Features
15
Lines of code
6,770
Activity Months11
Your Network
53 peopleSame Organization
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Kostiantyn CheltsovMember
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Maxim UsenkoMember
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Shared Repositories
28
Anatolii KyiashenkoMember
Anton HryhorukMember
Anton TrambovychMember
Igor IvashchenkoMember
Kateryna NavalikhinaMember
Kostiantyn CheltsovMember
Maksym AntonyshynMember
Maxim UsenkoMember
Mikhail MalezhykMember
Work History
July 2026
1 Commits • 1 Features
Jul 1, 2026July 2026 — OpenFintech: Delivered SEPA payout method support in the payment providers configuration, enabling SEPA transfers as a payout option and expanding cross-border payout coverage for European customers. The change, tracked in commit dd016d0a0a6de5d50593791c61d9d960013eae1b, enhances payout flexibility and accelerates merchant onboarding. This work involved backend configuration modeling and integration with the payment provider interfaces, demonstrating robust version-controlled delivery and cross-team collaboration.
1 Commits • 1 Features
Jul 1, 2026July 2026 — OpenFintech: Delivered SEPA payout method support in the payment providers configuration, enabling SEPA transfers as a payout option and expanding cross-border payout coverage for European customers. The change, tracked in commit dd016d0a0a6de5d50593791c61d9d960013eae1b, enhances payout flexibility and accelerates merchant onboarding. This work involved backend configuration modeling and integration with the payment provider interfaces, demonstrating robust version-controlled delivery and cross-team collaboration.
July 2026
June 2026
14 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for openfintechio/openfintech focusing on business value and technical delivery. Key features delivered: - Expanded Payment Providers and Methods: integrated Sharpay, TODA Pay, AraPay, FinAxis, and GDPaytech; added bank transfers, card payments, and payouts with new fields (e.g., bank_code) and support for currencies/domains PLN, USDC, NPR, UAH, KZT, including corresponding payout/invoice flows. Major bugs fixed: - No explicit major bugs logged in the provided data; stability improvements were achieved through webhook reconciliations and expanded payment flows (AraPay reconciliation webhooks, invoice and payout flows) improving reliability and error handling. Overall impact and accomplishments: - Significantly broadened merchant payment coverage and international payout capability, enabling merchants to accept more providers and currencies, reducing checkout friction and unlocking new revenue opportunities. - Strengthened settlement and reconciliation visibility with AraPay webhooks and invoice/payout flows (GDPaytech, FinAxis, Skrill, D8). - Delivered scalable payment orchestration across multiple providers and currencies, positioning the platform for multi-domain deployments and larger merchants. Technologies/skills demonstrated: - Payments orchestration, multi-provider integration, and currency management. - Webhook-driven reconciliation and invoice/payout flow implementations. - API design for flexible transaction configuration (e.g., bank_code) and currency-agnostic payout/invoice flows. This work was coordinated in the openfintechio/openfintech repository with multiple commits across INT2-4683, INT2-5510, INT2-5456, INT2-5404, INT2-6017, INT2-5111, INT2-5691, INT2-5691, INT2-5619, INT2-5619, INT2-5691, INT2-5703, INT2-5691, INT2-6017, etc.
June 2026
14 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for openfintechio/openfintech focusing on business value and technical delivery. Key features delivered: - Expanded Payment Providers and Methods: integrated Sharpay, TODA Pay, AraPay, FinAxis, and GDPaytech; added bank transfers, card payments, and payouts with new fields (e.g., bank_code) and support for currencies/domains PLN, USDC, NPR, UAH, KZT, including corresponding payout/invoice flows. Major bugs fixed: - No explicit major bugs logged in the provided data; stability improvements were achieved through webhook reconciliations and expanded payment flows (AraPay reconciliation webhooks, invoice and payout flows) improving reliability and error handling. Overall impact and accomplishments: - Significantly broadened merchant payment coverage and international payout capability, enabling merchants to accept more providers and currencies, reducing checkout friction and unlocking new revenue opportunities. - Strengthened settlement and reconciliation visibility with AraPay webhooks and invoice/payout flows (GDPaytech, FinAxis, Skrill, D8). - Delivered scalable payment orchestration across multiple providers and currencies, positioning the platform for multi-domain deployments and larger merchants. Technologies/skills demonstrated: - Payments orchestration, multi-provider integration, and currency management. - Webhook-driven reconciliation and invoice/payout flow implementations. - API design for flexible transaction configuration (e.g., bank_code) and currency-agnostic payout/invoice flows. This work was coordinated in the openfintechio/openfintech repository with multiple commits across INT2-4683, INT2-5510, INT2-5456, INT2-5404, INT2-6017, INT2-5111, INT2-5691, INT2-5691, INT2-5619, INT2-5619, INT2-5691, INT2-5703, INT2-5691, INT2-6017, etc.
May 2026
15 Commits • 2 Features
May 1, 2026In May 2026, OpenFinTech delivered a meaningful expansion of payments and payout capabilities, strengthening global reach and user experience while reinforcing data validation and compliance.
15 Commits • 2 Features
May 1, 2026In May 2026, OpenFinTech delivered a meaningful expansion of payments and payout capabilities, strengthening global reach and user experience while reinforcing data validation and compliance.
May 2026
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026 – OpenFinTech (openfintechio/openfintech): Implemented Payment Provider Rebranding, renaming SaltarPay to TouraPay; SaltarPay deprecated and TouraPay activated as the active provider. Commit: 4d390ec56517fc6a127800380669ca837a251985. This aligns branding with product strategy and simplifies provider lifecycle management.
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026 – OpenFinTech (openfintechio/openfintech): Implemented Payment Provider Rebranding, renaming SaltarPay to TouraPay; SaltarPay deprecated and TouraPay activated as the active provider. Commit: 4d390ec56517fc6a127800380669ca837a251985. This aligns branding with product strategy and simplifies provider lifecycle management.
March 2026
9 Commits • 2 Features
Mar 1, 2026March 2026 monthly summary for openfintechio/openfintech: Key features delivered include expanded payout methods with provider integrations and internationalization-ready input validation. No major defects fixed this month. Overall impact: broader payout reach, improved user experience, and a foundation for future regional expansion through enhanced payout processing and provider management. Technologies demonstrated: API integrations with multiple payout providers, webhook support, backend schema/UI enhancements, and internationalization-ready validation.
9 Commits • 2 Features
Mar 1, 2026March 2026 monthly summary for openfintechio/openfintech: Key features delivered include expanded payout methods with provider integrations and internationalization-ready input validation. No major defects fixed this month. Overall impact: broader payout reach, improved user experience, and a foundation for future regional expansion through enhanced payout processing and provider management. Technologies demonstrated: API integrations with multiple payout providers, webhook support, backend schema/UI enhancements, and internationalization-ready validation.
March 2026
February 2026
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for repository openfintechio/openfintech focused on expanding payment processing capabilities, multi‑currency support, and third‑party integrations. Implemented enhancements to support multiple payment methods and payouts, added multi-currency coverage (GBP, SRD, RSD), and integrated Cardgate. Included updates to client account field handling and transaction limit validations to strengthen compliance and risk controls. The work positions the platform for broader merchant adoption and cross-border transactions while improving developer surface area for payments and currency handling.
February 2026
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for repository openfintechio/openfintech focused on expanding payment processing capabilities, multi‑currency support, and third‑party integrations. Implemented enhancements to support multiple payment methods and payouts, added multi-currency coverage (GBP, SRD, RSD), and integrated Cardgate. Included updates to client account field handling and transaction limit validations to strengthen compliance and risk controls. The work positions the platform for broader merchant adoption and cross-border transactions while improving developer surface area for payments and currency handling.
January 2026
3 Commits • 1 Features
Jan 1, 2026January 2026 — Openfintech platform: Delivered unified expansion of payment methods across providers, including blik in PionPay, and added Apple Pay and Google Pay via Moneliq, plus a new payout method payment_card. Implemented payouts and refunds workflow for PionPay and added Paysafe card method to broaden payer options. No major bugs reported; these changes improve checkout conversion, reduce fragmentation across providers, and broaden monetization options.
3 Commits • 1 Features
Jan 1, 2026January 2026 — Openfintech platform: Delivered unified expansion of payment methods across providers, including blik in PionPay, and added Apple Pay and Google Pay via Moneliq, plus a new payout method payment_card. Implemented payouts and refunds workflow for PionPay and added Paysafe card method to broaden payer options. No major bugs reported; these changes improve checkout conversion, reduce fragmentation across providers, and broaden monetization options.
January 2026
December 2025
4 Commits • 2 Features
Dec 1, 2025December 2025: Delivered strategic payments features in openfintechio/openfintech, expanding merchant payment acceptance and strengthening payout operations. Apple Pay support added to Cardaq provider (INT2-2546) with commit d2beb3769ebf056672dd2f31a9bba0f1a02beac9, enabling card-present/mobile wallet checkout and improved conversion. Payouts enhancements introduced bank transfer payout method, routing number field, and bank code underscore support (INT2-2880) across commits 289cd1bf77690cfecdb86aa1f343dbaf5abee5a0, d1bdf022616575a9f5768bbb4c159cea6ce8c52b, f93fe9407d96c9fe7c6b62871759d082f54e3fdb, with related Payneteasy reconciliation work. Payouts and reconciliation improvements for Payneteasy (INT2-2880) implemented, enabling end-to-end payout tracking. No critical bugs fixed this month. Overall impact: broadened payment acceptance, improved payout reliability, and demonstrated end-to-end delivery across payments and payout ecosystems. Technologies/skills demonstrated: payment API integration (Cardaq), routing number handling, bank code normalization, payout configuration, and reconciliation workflows, with strong traceability via commit history.
December 2025
4 Commits • 2 Features
Dec 1, 2025December 2025: Delivered strategic payments features in openfintechio/openfintech, expanding merchant payment acceptance and strengthening payout operations. Apple Pay support added to Cardaq provider (INT2-2546) with commit d2beb3769ebf056672dd2f31a9bba0f1a02beac9, enabling card-present/mobile wallet checkout and improved conversion. Payouts enhancements introduced bank transfer payout method, routing number field, and bank code underscore support (INT2-2880) across commits 289cd1bf77690cfecdb86aa1f343dbaf5abee5a0, d1bdf022616575a9f5768bbb4c159cea6ce8c52b, f93fe9407d96c9fe7c6b62871759d082f54e3fdb, with related Payneteasy reconciliation work. Payouts and reconciliation improvements for Payneteasy (INT2-2880) implemented, enabling end-to-end payout tracking. No critical bugs fixed this month. Overall impact: broadened payment acceptance, improved payout reliability, and demonstrated end-to-end delivery across payments and payout ecosystems. Technologies/skills demonstrated: payment API integration (Cardaq), routing number handling, bank code normalization, payout configuration, and reconciliation workflows, with strong traceability via commit history.
November 2025
8 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for openfintech platform: Focused on expanding payment capabilities and tightening integration quality to drive broader merchant coverage and streamlined transaction flows.
8 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for openfintech platform: Focused on expanding payment capabilities and tightening integration quality to drive broader merchant coverage and streamlined transaction flows.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025OpenFinTech monthly summary for 2025-10 focusing on developer contributions in openfintechio/openfintech. Key delivery: POG Sell integration assets (icons and logos) for the Spell payment provider, enabling branding alignment and resource readiness. The commit INT2-1497 also signals groundwork for callback and payout support. No major bugs documented for this period. Impact includes improved merchant experience with ready-to-use Spell assets, and preparation for payout workflows. Demonstrated skills include asset management for payment integrations, precise changelog referencing, and readiness for payment-provider feature rollouts.
October 2025
1 Commits • 1 Features
Oct 1, 2025OpenFinTech monthly summary for 2025-10 focusing on developer contributions in openfintechio/openfintech. Key delivery: POG Sell integration assets (icons and logos) for the Spell payment provider, enabling branding alignment and resource readiness. The commit INT2-1497 also signals groundwork for callback and payout support. No major bugs documented for this period. Impact includes improved merchant experience with ready-to-use Spell assets, and preparation for payout workflows. Demonstrated skills include asset management for payment integrations, precise changelog referencing, and readiness for payment-provider feature rollouts.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for openfintechio/openfintech. Focused on expanding payment gateway capabilities to deliver concrete business value: POG Pay UA webhook/payout support and Kodapay gateway extension method. These changes enable automated settlements, broaden merchant coverage, and improve reconciliation. No major bug fixes were reported in the provided scope.
2 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for openfintechio/openfintech. Focused on expanding payment gateway capabilities to deliver concrete business value: POG Pay UA webhook/payout support and Kodapay gateway extension method. These changes enable automated settlements, broaden merchant coverage, and improve reconciliation. No major bug fixes were reported in the provided scope.
September 2025
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Quality Metrics
Correctness95.2%
Maintainability91.2%
Architecture91.2%
Performance91.6%
AI Usage22.2%
Skills & Technologies
Programming Languages
JSONJavaScriptPythonSQL
Technical Skills
API IntegrationAPI developmentAPI integrationBackend DevelopmentJSONJSON schemaJSON schema designJavaScriptPayment Gateway Integrationbackend developmentcryptocurrencycryptocurrency handlingdata managementdata modelingdata validation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline