Senior Python Developer - full stack

Position Details

• Salary: EUR 70k annual base salary, with VSOP available for discussion
• Working Hours: Daytime working hours aligned with Central European Time (CET)
• Work Setup: Fully remote position

Role Summary

We are hiring a  Senior Python Developer to lead design and implementation across a  stateful, workflow-driven platform built in Python . This role requires strong backend engineering fundamentals and the ability to work confidently across  application logic, APIs, integrations, asynchronous processing, state management, testing, and production architecture .

You will work on a platform that combines:

• Python services and core runtime design
• FastAPI-style APIs and callback endpoints
• Redis-backed state and workflow persistence
• Async external-provider integrations and retry handling
• Multi-channel messaging backends
• LLM-assisted workflow components
• End-to-end testing of orchestration, contracts, and recovery paths

This is a  senior hands-on engineering role . We expect  clear technical judgment, strong ownership, and pragmatic architectural decision-making without unnecessary complexity.

Responsibilities

• Design, implement, and maintain  production-grade Python services and runtime components
• Own complex backend features  end to end , from domain modeling through rollout and regression coverage
• Build and evolve  stateful workflow systems, orchestration layers, and asynchronous processing
• Integrate with third-party APIs and external service providers in a  reliable, observable, and fault-tolerant way
• Improve system correctness around  retries, idempotency, error handling, and distributed state transitions
• Contribute across the stack including  APIs, integrations, contracts, and tooling
• Write  high-signal tests covering unit, integration, contract, and recovery scenarios
• Review code rigorously and raise the bar for  design clarity, maintainability, and runtime safety
• Collaborate with stakeholders to turn  ambiguous requirements into robust implementation plans

Working Style

We value engineers who are:

• rigorous
• pragmatic
• comfortable with ownership
• concise in communication
• capable of handling both systems thinking and implementation detail

If you are strongest only in  isolated backend CRUD development and do not enjoy  stateful systems, integrations, or workflow complexity , this role is likely not the right fit.

Requirements

Required Experience

• 6+ years of professional Python development experience
• Strong experience with  modern Python backend development , including  type-aware design and asynchronous programming
• Strong experience designing and maintaining  APIs and service boundaries
• Solid experience with  Redis or comparable key-value/data-structure stores in production systems
• Experience with  event-driven or workflow-oriented systems , including retries, resumability, and state transitions
• Experience integrating with  external services, callbacks/webhooks, and long-running remote processes
• Strong testing discipline with  pytest and a clear understanding of  regression prevention
• Comfortable working in systems that mix  deterministic application logic with AI/LLM-assisted components
• Ability to work across  backend, platform, and integration concerns without narrow specialization

Preferred Experience

• Experience with  FastAPI, Starlette, or similar Python web frameworks
• Experience with  conversational systems, messaging backends, or multi-channel product flows
• Experience with  queue-like async coordination patterns, webhook security, and idempotent callback handling
• Experience with  localization/i18n pipelines and user-facing workflow systems
• Experience with  Docker-based local development and production deployment workflows
• Experience working in codebases with  strong architectural boundaries, typed domain contracts, and documentation-driven development

Technical Profile

The right candidate should be comfortable with most of the following:

• Python
• Async I/O and coroutine-based service design
• FastAPI-style API development
• Redis-backed application state
• Pytest-based automated testing
• REST/webhook integrations
• State machines, orchestration, and workflow engines
• Payload/schema design and validation
• Production debugging and operational reasoning
• Docker-based development environments

What Good Looks Like

• Produces code that is  clear, defensible, and easy to evolve
• Understands  failure modes before they happen and designs accordingly
• Makes  deliberate tradeoffs instead of defaulting to abstraction or framework-heavy solutions
• Can move between  architecture, implementation, and debugging without losing precision
• Writes tests that reflect  real system behavior , not just happy-path implementation details
• Communicates  directly and professionally with strong technical judgment

Seniority Expectations

This role is not limited to ticket execution. We expect the engineer in this position to:

• identify  weak spots in architecture and implementation
• propose  clean solutions with minimal ceremony
• drive  difficult features across multiple modules
• improve  engineering standards through code review and design decisions
• and take responsibility for  correctness in production-facing behavior

Nice-to-Have Domain Exposure

• Messaging platforms such as WhatsApp or web chat systems
• Identity, onboarding, or verification workflows
• AI-assisted product experiences
• Workflow engines and rule-driven application behavior

Employment / Tax

• EU VAT compliance is a must for contractors
• EU GDPR compliance is a must
• EU work permit is a strong pre

About the Company

Trusted Carrier is a  German logistics technology company founded in 2026on the initiative of the  German Road Haulage, Logistics and Disposal Association (BGL) . The company provides a  digital, open platform that connects  shippers, transport companies, and drivers , enabling  standardized and verified data exchange across the logistics ecosystem.

The platform focuses on delivering  trusted and validated master data related to  companies, vehicles, drivers, and transport equipment . This data is  centrally managed, quality checked, and accessible via interfaces to support  compliance, safety, and operational efficiency .

By digitizing documentation and workflows such as  driver credentials, vehicle information, and transport requirements , Trusted Carrier reduces  manual processes, waiting times, and administrative overhead . This enables more  automated, transparent, and reliable supply chain operations .

Trusted Carrier primarily serves the  transportation and logistics industry , with initial focus areas such as the  chemical sector , and continues to expand into  additional industries and European markets . The company’s goal is to drive  end to end digitalization and data standardization across logistics networks .

Contact Info

• Contact : Karlheinz Toni
• E-mail contact :  Ver o e-mail no codingjobboard.com
• Web :