May 4, 2026
Technical Support and Integration Specialist
Senior • Remote
10,000 - 18,000 PLN
Warsaw, Poland
We are an Authorized Electronic Money Institution (EMI) operating under a licence granted by the Finnish Financial Supervisory Authority. We are building our own core banking technology and BaaS platform using Python and Django, backed by PostgreSQL and deployed on AWS, while leveraging modern frontend technologies such as React, Next.js, React Native, React Query, and TypeScript to deliver fast, scalable, and user-friendly web and mobile experiences.
We are looking for a Technical Support and Integration Specialist to expand our small remotely working team.
Key Responsibilities:
Resolve technical support tickets and handle bugs / technical issues.
Perform manual an write automated tests
Support and troubleshoot API integrations for business customers.
Provide hands-on integration support for BaaS partners
Contribute to API documentation
Collaborate closely with frontend and backend engineers
Requirements:
4+ years in QA, technical support, or API integration (fintech/payments is a big plus).
Experience in writing automated tests
Strong knowledge of REST APIs, webhooks, and debugging.
Ability to organize your own work, set priorities, and manage your time independently.
Excellent problem-solving and communication skills.
A friendly, honest, and straightforward attitude.
100% commitment to our team (no side jobs).
-
Fluency in English.
What we offer:
Competitive salary tailored to your skills and experience
20 paid days off annually, starting after a 3-month trial period
A friendly, honest, and straightforward atmosphere
No corporate nonsense - just real work
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Poznan, Poland
🏢 Summary: Lead Python Engineer (Backend) role focused on designing and implementing scalable microservices and backend systems for Treasury technology initiatives. The position involves integrating diverse data sources, driving system architecture decisions and mentoring engineers within globally distributed agile teams. Requires strong expertise in Python, backend frameworks and system-level automation in a high-stakes environment. 🗂️ Requirements: 10+ years of professional Python development experience, Proficiency in FastAPI, Django or Flask, Experience with microservices architecture and API gateways, Strong system design and software architecture expertise, Experience integrating data formats: xlsx, pdf, csv, json, Advanced shell scripting skills (Bash), Knowledge of Linux/Unix systems and process management, Experience with REST API development, Experience with Dagster and Kubernetes, Experience mentoring or leading engineers technically, Familiarity with Jira and Confluence, English proficiency at B2 level or higher 📃 Skills: Python, FastAPI, Django, Flask, Microservices, API, REST, Dagster, Kubernetes, Bash, Linux, Unix, JSON, CSV, XLSX, PDF, Jira, Confluence 🏢 Description: We are seeking a Lead Python Engineer (Backend) to support Treasury technology initiatives. In this role, you will design and implement scalable backend systems, integrate diverse data sources and guide a team of engineers in building high-stakes applications. This position requires work within the ET time zone (8 am-4 pm) and collaboration with globally distributed teams. Responsibilities Design and implement microservices architectures, API gateways and inter-service communication Develop and optimize backend systems and APIs to support Treasury technology initiatives Integrate data from multiple sources and formats (xlsx, pdf, csv, json) into a common data model Mentor and manage less senior team members from a technical perspective Automate tasks and manage operating system-level processes through shell scripting Troubleshoot complex system and application issues Drive test automation efforts, including robust unit testing Participate in code reviews and foster peer learning across the team Collaborate with agile teams across the globe on complex, high-stakes applications Contribute to system design decisions and software architecture Requirements 10+ years of professional experience in Python development Proficiency in backend frameworks such as FastAPI, Django and Flask, including API design and optimization Expertise in system design and software architecture, with experience in microservices, API gateways and inter-service communication Skills in integrating data from multiple sources and formats (xlsx, pdf, csv, json) into a common data model Advanced knowledge of shell scripting (e.g., Bash) for task automation and OS-level management Understanding of operating systems (Linux/Unix), including process management, basic networking and application layer integration Familiarity with Dagster, Kubernetes and REST API Experience managing and mentoring engineers from a technical perspective Background in agile teams working on complex, high-stakes applications Strong problem-solving and troubleshooting capabilities Familiarity with Atlassian tools such as Jira and Confluence Collaborative mindset with comfort working across global teams English proficiency at B2 level or higher Nice to have Familiarity with Cloud Knowledge of DevOps We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.