Software Engineer
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Before you apply
SalaryPLN 90 – PLN 120/hr
LocationRemote Work Poland, Warsaw
Work moderemote
Typecontract
SeniorityMid
Experience2–4 yrs
DepartmentIT & Engineering
Company size1,001–5,000 people
PostedOct 20, 2026 · 2w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
2–4 years building production software
Strong in Python (FastAPI or similar)
Comfortable in TypeScript/JavaScript (React a plus)
Hands-on with AWS and infrastructure-as-code (Terraform)
Solid Git workflow, CI/CD, and containerized services (Docker)
Strong ability to navigate vague or shifting requirements — a bias for action, comfort making decisions with incomplete information, and the judgment to avoid analysis-paralysis
Pragmatic, ships iteratively, communicates clearly
Curious about and comfortable working with AI tooling in day-to-day development
Experience building products from scratch (0→1) in a fast-moving team
Conversational AI / chatbot / IVR experience (Twilio, Cognigy, DialogFlow)
LLM / GenAI integration (Bedrock, RAG, MCP servers)
Event streaming (Kafka) and observability (Datadog)
Customer-service or contact-center domain exposure
Skills
Python
FastAPI
TypeScript
React
JavaScript
Terraform
AWS
Twilio
Cognigy
Kafka
AWS Bedrock
LiteLLM
Datadog
Docker
CI/CD
Rate: 89 – 119 PLN/hour (B2B)
About the role
We are looking for an experienced Software Engineer to join Flix on a freelance/service agreement basis (B2B contract). This is a contractor engagement for a seasoned engineer who wants to work on impactful, hands-on engineering challenges.
Scope of Services
Build and scale the customer service platform that handles millions of passenger conversations across markets — from AI-powered chatbots and voice agents to help center and knowledge base tools. We run a polyglot stack (Python, TypeScript, Terraform) on AWS, integrating Twilio, Cognigy, Kafka and AWS Bedrock. We ship continuously and own our services end-to-end, from Terraform to production.
About the Engagement
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Design, build and maintain Python (FastAPI) backend services and TypeScript/React frontends across the CS platform
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Take greenfield products from concept to production — make architectural calls, prototype, validate, and iterate under uncertainty
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Develop and extend Twilio Functions (JavaScript) for voice/IVR and webchat flows
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Manage the infrastructure as code with Terraform (HCL) on AWS — you build it & deploy it
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Integrate third-party and AI platforms: AWS Bedrock, Twilio, Cognigy, LiteLLM, Kafka
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Apply AI to your engineering practice — use and help improve our internal AI tooling to ship faster and raise quality
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Instrument and monitor services (Datadog, event forwarding, alerting) and respond to production issues
About You
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2–4 years building production software
•
Strong in Python (FastAPI or similar) and comfortable in TypeScript/JavaScript (React a plus)
•
Hands-on with AWS and infrastructure-as-code (Terraform)
•
Solid Git workflow, CI/CD, and containerized services (Docker)
•
Strong ability to navigate vague or shifting requirements — a bias for action, comfort making decisions with incomplete information, and the judgment to avoid analysis-paralysis
•
Pragmatic, ships iteratively, communicates clearly
•
Curious about and comfortable working with AI tooling in day-to-day development
Preferred Skills:
•
Experience building products from scratch (0→1) in a fast-moving team
•
Conversational AI / chatbot / IVR experience (Twilio, Cognigy, DialogFlow)
•
LLM / GenAI integration (Bedrock, RAG, MCP servers)
•
Event streaming (Kafka) and observability (Datadog)
•
Customer-service or contact-center domain exposure
Collaboration Model
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Cooperation based on a service agreement (B2B/freelance contract), not an employment contract
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You will operate as an independent contractor, responsible for delivering agreed services and submitting invoices
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Location: open for contractors based in Poland