Senior Full Stack Engineer

Please, follow FitNext LinkedIn page: https://www.linkedin.com/company/fitnext-consulting/ *

Following

LinkedIn URL profile *

Country of residence *

Github Link *

What is your expected rate per month in USD? *

English Level *

A1: Beginner
A2: Basic
B1: Intermediate
B2: Advanced Intermediate
C1: Advanced
C2: Proficient

Which option best describes your experience shipping software at technology product companies? Select one. *

7+ years, including end-to-end ownership of customer-facing products in production.
7+ years, primarily contributing to specific components without end-to-end production ownership.
4–6 years, including shipping customer-facing products to production.
Fewer than 4 years at technology product companies.
My experience is primarily in consulting, banking IT, HR systems, or internal enterprise IT.

Which option best describes your hands-on experience with our application stack? Select one. *

I have shipped production applications using Python/FastAPI and TypeScript/Node.js, including user-facing interfaces.
I have shipped production applications using Python with another framework and TypeScript/Node.js, including user-facing interfaces.
My production experience is primarily in Python backend development, with limited TypeScript/Node.js or frontend experience.
My production experience is primarily in TypeScript/Node.js, with limited Python experience.
I have limited or no production experience with either stack.

Which backend responsibilities have you personally owned in production? Select all that apply. *

Designing backend architecture and making technical trade-offs.
Building and maintaining APIs used by real customers.
Designing or operating distributed systems, including handling failures and reliability issues.
Improving database performance, queries, or data models.
Investigating production incidents and deploying fixes.
None of the above.

Which option best describes your infrastructure ownership? Select one. *

I have worked hands-on with all of these, but relied on DevOps or platform engineers for major changes and incidents.
I have owned CI/CD and containerized cloud deployments, but have limited production Kubernetes experience.
I have deployed applications through infrastructure maintained by another team, with limited infrastructure ownership.
I have no hands-on production infrastructure experience.

Which option best describes your use of Claude Code or Codex? Select one. *

I have built custom agentic development workflows or systems that coordinate tasks, tools, and validation, and I personally review and correct their output.
I regularly use agents for multi-step implementation, debugging, and testing, and I personally review and correct their output.
I mainly use these tools for isolated code generation, explanations, or autocomplete.
I use other AI coding tools but have not used Claude Code or Codex.
I do not use AI coding tools.

This role requires working from 9 a.m. to 9 p.m., six days per week (996 schedule). Are you available and willing to commit to this schedule? *

Yes
No

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