Fyst

WHAT YOU'LL BE WORKING ON

• Design and development of the core banking system and Internet acquiring service within the financial ecosystem
• Participation in product architecture design and query optimization
• Data handling: synchronization, transmission, and processing
• Implementation of new business logic in applications
• Work with metrics: integration, optimization, and monitoring. 

WHAT YOU NEED TO SUCCEED IN THIS ROLE

• At least 4-5+ years of experience in backend development, including 2+ years of production experience with Golang
• Deep knowledge of Golang and its ecosystem
• Solid understanding of multithreaded systems and concurrent programming principles
• Strong knowledge of SQL and experience working with relational databases
• Proven experience in developing and maintaining microservice architectures
• Strong understanding and practical application of software development principles: SOA, SOLID, KISS, DRY
• Experience in architectural design and readiness to propose and implement technical solutions
• Familiarity with Clean Architecture principles and Domain-Driven Design (DDD)
• Experience in fintech is a plus, but not required 
• Good written and verbal communication skills in English (B1–B2 level or higher) and fluent russian language.

OUR TECH STACK

• Go, PostgreSQL, Redis, DynamoDB, Kafka, RabbitMQ, gRPC 

WHAT WE OFFER

• An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!
• Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us 
• Work with coworkers who are passionate about their business
• Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews
• Remote type of work

• 20 days of vacation time; bank holidays; Sick leaves; Additional birthday day off

   

You can find out more about our team, our values, and the unique ways we celebrate our successes here: https://fyst.com/culture 

#Fintech #SaaS #Go #FullyRemote 

WHAT YOU'LL BE WORKING ON

• Analysis of the existing program code, identification and elimination of errors
• Development of program code for company projects
• Interaction with the development department, testing
• Support and development of integrations with side services.

WHAT YOU NEED TO SUCCEED IN THIS ROLE

• 4- 5+ years of professional experience with Python 3.10+, with a deep understanding of its asynchronous programming model
• Domain knowledge in payment systems or financial flows 
• Strong hands-on experience with asyncio, FastAPI or aiohttp, SQLAlchemy, and Django ORM
• Experience in system design (Scalability, Reliability & Fault Tolerance, Security, Performance)
• Practical experience with microservice architectures, API development, and service-to-service communication (REST, GRPC)
• Knowledge of and experience with message queues like RabbitMQ or Kafka
• Experience writing and maintaining unit/integration tests with modern testing frameworks
• Experience with Grafana loki(LogQL), Jaeger/Tempo
• Familiarity with gitlab CI/CD, Docker, Kubernetes, Helm, and cloud infrastructure (e.g., AWS, GCP) is a plus
• Knowledge of how 3ds2 flow works is a big plus
• Good English communication skills (written and spoken) and fluent russian. 

OUR TECH STACK

Python 3.12, FastAPI, Django, async gRPC, asyncio, pytest, GitLab CI/CD, Kubernetes (K8s), Helm, PostgreSQL.
 

WHAT WE OFFER

• An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!
• Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us 
• Work with coworkers who are passionate about their business
• Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews
• Remote type of work
• 20 days of vacation time; bank holidays; Sick leaves; Additional birthday day off

You can find out more about our team, our values, and the unique ways we celebrate our successes here: https://fyst.com/culture 

#Fintech #SaaS #FullyRemote #Python

WHAT YOU'LL BE WORKING ON

• Performing 50/50 manual and automated testing (Python): manually testing new features and then automating them.
• Working with an already established Python automation framework: the architecture and core setup are complete, your focus will be on increasing coverage, contributing new tests, improving stability, and addressing test tech debt. contributing new tests, improving stability, and addressing test tech debt.
• Designing and implementing effective testing strategies and plans
• Actively collaborating with developers, analysts, and other stakeholders throughout the development and release cycles
• Identifying bottlenecks and improving QA processes and workflows
• Proactively solving testing-related challenges and ensuring product quality
• Not only distributing tasks but also directly participating in day-to-day testing activities.

WHAT YOU NEED TO SUCCEED IN THIS ROLE

• At least 3-4 years of experience in software testing, including at least 3 years of hands-on experience in test automation (Python)
• Hands-on experience in payments/B2B testing
• Strong hands-on skills in manual testing and working with complex business logic
• Strong experience in performance and load testing 
• Solid knowledge of the Kibana system, Postman, and API testing
• Experience integrating automated tests into CI/CD pipelines (Allure reporting)
• Strong knowledge of software QA methodologies, tools, and processes
• Good communication skills in English and russian. 

WHAT WE OFFER

• An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!
• Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us 
• Work with coworkers who are passionate about their business
• Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews
• Remote type of work
• 20 days of vacation time; bank holidays; Sick leaves; Additional birthday day off

You can find out more about our team, our values, and the unique ways we celebrate our successes here: https://fyst.com/culture

WHAT YOU'LL BE WORKING ON
 

• Design and build a payment processing platform from scratch: core payment flows, transaction lifecycle, routing logic, retries, fallbacks, settlements, refunds, chargebacks
• Define and own the end-to-end product vision for payment processing, from zero state to a scalable production system
• Architect payment flows across multiple providers (PSPs, acquirers, banks), including multi-PSP routing, MID management, and failover strategies
• Own the core gateway logic: authorization, capture, voids, refunds, recurring payments, payouts, callbacks/webhooks
• Work closely with engineering on system design decisions: APIs, data models, idempotency, reliability, observability
• Translate business and compliance requirements into clear product and technical specifications
• Own the full product lifecycle: discovery → design → delivery → launch → iteration
• Ensure compliance with PCI DSS, 3DS, card scheme rules (Visa/Mastercard), and regulatory requirements
• Manage relationships with external partners: PSPs, acquirers, fraud/KYC providers
• Drive product decisions based on metrics: approval rates, latency, decline reasons, cost per transaction, and stability

WHAT YOU NEED TO SUCCEED IN THIS ROLE
 

• At least 4-5+ years of experience as a Product Manager in payments/fintech
• Proven hands-on experience building payment processing or payment gateway products from scratch (not only integrations or feature ownership - core processing logic is mandatory)
• Deep understanding of the payment transaction lifecycle. card payments, 3DS, authorization/clearing/settlement, PSP and acquirer integrations, routing, cascading, retries, failover
• Strong understanding of payment system architecture and how backend systems work
• Ability to work as a product owner with architectural thinking, not just requirements management
• Experience working with cross-functional teams in complex, regulated environments
• High ownership mindset: able to independently drive decisions and outcomes
• Strong analytical, system-thinking, and problem-solving skills
• Clear communication with both technical and non-technical stakeholders
• English level B2 or higher, fluent russian
   

WHAT WE OFFER

• An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!
• Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us
• Work with coworkers who are passionate about their business
• Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews
• The opportunity to attend conferences, courses, and professional development at the company's expense - we favor the continuous development of our employees
• Private health insurance coverage
• Remote work
• 20 days of vacation time; bank holidays; sick leaves; additional birthday day off
• Team building events and corporate parties.

You can find out more about our team, our values, and the unique ways we celebrate our successes here: https://fyst.com/culture 

ABOUT THE ROLE 

🔍 We are looking for a Customer Success Manager / Key Account Manager with strong experience in client portfolio management within Fintech, Payments or SaaS. This is a backstage, non-sales role, focused on operations, data, and transparency rather than upselling or hunting.
The role is highly operational and designed for someone who enjoys building order, structure, and clarity around a complex merchant base.

WHAT YOU'LL BE WORKING ON
 

• Manage and maintain a portfolio of merchants, ensuring stability, performance, and long-term retention
• Build and maintain structured merchant profiles
• Own client analytics and reporting, providing regular insights and recommendations
• Coordinate internal services for merchants (payments, operations, compliance, support, finance)
• Ensure the correct setup and ongoing management of our services for each merchant
• Identify issues and risks early and proactively escalate and resolve them
• Support onboarding, changes, and lifecycle management of merchants
• Help build processes, documentation, and structure for customer and portfolio management
• Act as an internal point of control and visibility for the merchant portfolio

WHAT YOU NEED TO SUCCEED IN THIS ROLE

• 2–5+ years of experience as Customer Success Manager, Key Account Manager, Account Manager, or similar
• Strong understanding of client portfolio management
• Experience in Fintech, Payments, PSPs, SaaS, or financial services is a big plus
• Comfortable working with data, analytics, dashboards, and reports
• Structured, detail-oriented, and process-driven mindset
• Ability to work cross-functionally with operations, product, compliance, and finance teams

• Good level of English and fluent russian

   

WHAT WE OFFER

• An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!
• Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us 
• Work with coworkers who are passionate about their business
• Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews
• The opportunity to attend conferences, courses, and professional development at the company's expense - we favor the continuous development of our employees
• Remote type of work 
• Vacation time; bank holidays; Sick leaves; Additional birthday day off

• Team building events and corporate parties. 

   

You can find out more about our team, our values, and the unique ways we celebrate our successes here: https://fyst.com/culture 

ABOUT THE ROLE

We are seeking a skilled and detail-oriented Payment Systems Project Manager to coordinate projects focused on Visa and Mastercard payment systems - from membership to certification and then operational support and compliance. The ideal candidate will have in-depth knowledge of card payment ecosystems, including authorization, clearing, settlement, chargebacks, and compliance mandates from Visa and Mastercard, and an understanding of licensing and membership processes.

You will play a crucial role in the successful implementation, upgrade, or integration of payment systems, working cross-functionally with technical, operational, and compliance teams.

WHAT YOU'LL BE WORKING ON
 

• Coordinate end-to-end project management for initiatives involving Visa and Mastercard (e.g., memberships, certifications, new product launches, mandate updates).
• Collaborate with payment systems, card processors,  payment gateways, and tech teams to ensure complete alignment and timely delivery of projects.
• Manage stakeholder communications, reporting on timelines, risks, dependencies, and budgets.
• Oversee compliance with Visa/Mastercard rules and regulations, including mandates.
• Coordinate certification and testing with Visa and Mastercard (e.g., acquiring, e-commerce,  BIN sponsorships).
• Ensure proper documentation, training, and change management for all activities and new systems.
   

WHAT YOU NEED TO SUCCEED IN THIS ROLE
 

• Bachelor’s degree in Computer Science, Business, Information Systems, or related field.
• 3+ years of experience in project management, ideally in the financial services or payment industry.
• Strong understanding of Visa/Mastercard systems, rules, and integration standards.
• Proven experience delivering projects involving acquiring platforms.
• Excellent communication, organizational, and leadership skills.
   

WILL BE A PLUS
 

• Experience with payment gateway services, processing systems, or payment orchestration platforms.
• Technical understanding of APIs, SDKs, and message formats used in payment switching or processing. 

WHAT WE OFFER

• An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!
• Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us 
• Work with coworkers who are passionate about their business
• Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews
• Remote type of work 
• Team building events and corporate parties.