Full-stack Engineer and Systems Architect

Strider; Argentina; Vor Ort; ARS 1.800.000 - 3.000.000; Vollzeit

Zusammenfassung

Strider is seeking an architecture-focused software leader to write code and shape systems. You'll define service boundaries, data models, and contracts, ensuring consistent behavior across brands while enabling local and hosted deployments without rewrites.

You will direct AI coding agents with rigorous reviews, craft specifications, and maintain invariants in code and tests. Strong frontend and backend expertise, plus fluency in English, are essential.

Qualifikationen

• 8+ years of software development experience.
• Proficiency with TypeScript and Python.
• Experience directing AI coding agents with rigorous reviews.
• Experience with data-heavy internal consoles and component-driven front-ends.
• Experience with Postgres, migrations, indexing, and performance diagnosing.
• Experience with containers and production deployments.
• Experience with monorepos/multi-repos and shared packages.
• Experience building CI/CD pipelines with gates and reproducible builds.
• Experience implementing protocols and conformance tests.
• Experience with messaging APIs (e.g., carrier, WhatsApp).
• Ability to review AI-generated code deeply and productively.
• Strong written and spoken English communication.

Aufgaben

• Architect system boundaries, data models, and contracts between components.
• Design seams for local and hosted execution without rewriting code.
• Turn fuzzy capabilities into clear core entities and rules.
• Apply MIT concept design methodologies to agentic systems.
• Design abstractions that keep behavior consistent across brands.
• Decide where systems must be deterministic and where human judgment applies.
• Collaborate with founders on architecture and product direction.
• Plan upfront how each system will prove correctness with tests.
• Direct AI agents to build features and review outputs before merging.
• Maintain specs and agent instructions as first-class artifacts.

Kenntnisse

TypeScript

Python

AI integration

Front-end architecture

PostgreSQL

Containers

Monorepos

CI/CD pipelines

Observability

English communication

Ausbildung

Bachelor’s Degree in Computer Engineering or Computer Science

Jobbeschreibung

Requirements

Must-haves

• 8+ years of software development experience
• Proficiency with TypeScript
• Proficiency with Python
• Experience directing AI coding agents with rigorous review and verification practices
• Experience building component-driven front-ends and data-heavy internal consoles
• Experience with Postgres, including migrations, indexing, and query performance diagnosis
• Experience with containers and production deployments
• Experience with monorepos and multi-repos (e.g., workspaces, shared packages, versioned internal contracts)
• Experience building CI/CD pipelines (e.g., merge gates, reproducible builds, release and rollback, environment parity)
• Experience implementing protocols against specifications and building the conformance tests
• Experience with messaging APIs (e.g., carrier, WhatsApp, chat)
• Experience in instrumenting systems and reading traces for observability
• Ability to become productive with unfamiliar frameworks within a day
• Ability to hand-code and deeply review AI-generated code
• Deep understanding of typed schemas as a single source of truth, generated clients, and centralized validation
• Deep understanding of UX quality for pixel-perfect feature execution
• Interest in cutting-edge technologies and proposing new ideas for internal tools
• Strong communication skills in both spoken and written English

What makes you stand out

• Senior-level experience backed by strong, independent judgment
• Ability to troubleshoot hands-on without relying on AI coding tools

Nice-to-haves

• Startup experience
• Experience with business messaging platforms in production (e.g., Apple Messages for Business, RCS Business Messaging, WhatsApp Cloud API)
• Experience with Rust, Swift
• Experience with iOS or Android device automation, or computer vision applied to testing
• Bachelor’s Degree in Computer Engineering, Computer Science, or equivalent

What you will work on

• This is an architecture role that writes code, not a coding role that occasionally diagrams.
• The hard problems here are not framework problems. There are questions like:
• What is the right abstraction for behavior that must stay identical across brands with wildly different experiences?
• Where does a system have to be deterministic and reproducible, and where can human judgment live?
• What belongs in a shared contract versus a local implementation?
• How do you make a system's invariants checkable rather than aspirational?
• We need someone who thinks in systems and concepts first, and who can then build the thing. Specifically:

System architecture and concept design

• Define service boundaries, data models, and contracts between components
• Design seams that let the same code run locally and hosted without a rewrite
• Turn fuzzy capabilities into clear models of core entities and rules
• Apply MIT concept design methodologies to agentic system design
• Design abstractions that keep behavior consistent across brands with very different experiences
• Decide where systems must be deterministic and where human judgment can apply
• Make architecture decisions alongside founders with product and engineering backgrounds

Verification and documentation

• Plan up front how each system will prove its correctness, rather than retrofitting tests
• Make system invariants checkable through code and tests
• Write specifications, decision records, and product invariants in RFC 2119 language
• Direct AI agents to build features and review their output in depth before merging
• Write specs that agents can execute and reviewers can check
• Maintain agent instructions and skills as first-class artifacts
• Catch plausible but wrong results (e.g. silent safety gates, empty version pins, hollow dependency directories)