Senior Full Stack Engineer, Growth & Experimentation – Krak

Kraken; Buenos Aires; À distance; ARS 127 071 000 - 232 964 000; Temps partiel

Avantages offerts par ce poste

Professional growth

Competitive USD-based pay

Flexible schedule

Remote and office options

Résumé du poste

Kraken is seeking a Sr. Full-Stack Software Engineer for a fully remote, contractor role (~15 hours/week). The role blends frontend and backend work across React, Rails, and SQL databases to build and scale an AI training platform. You will collaborate with product, data science, and design teams to deliver secure, high-quality software.

The position emphasizes fast-moving environments, on-call rotations, and translating wireframes into production features on both client and server sides.

Qualifications

• 3+ years of full-stack web development experience across frontend and backend
• Proficient in Python, JavaScript/TypeScript, and at least one backend language (Java/Rust/Go)
• Experience building APIs, data models, and service-oriented architectures
• Ability to understand and refactor unfamiliar codebases and optimise performance
• Familiarity with Agile processes and collaboration with product teams

Responsabilités

• Develop and debug front-end and back-end features and services
• Translate wireframes into production-ready features across React and Rails stacks
• Review AI-generated code for correctness and performance
• Collaborate with product and design to solve complex problems
• Participate in on-call rotations and maintain documentation

Connaissances

Python

React

JavaScript

Java

Node.js

Rust

Go

TypeScript

Full-stack development

APIs & databases

Outils

Rails

PostgreSQL

HTML/CSS

GitHub

Description du poste

Sr. Full-Stack Software Engineer - Remote

Location: Global, Fully RemoteJob Type: Contractor | ~15 hours/weekSchedule: Flexible

We're looking for experienced Full-Stack Software Engineers to support an AI training project focused on software development, debugging, code evaluation, and technical problem-solving.

Key Responsibilities

• Develop and debug front-end and back-end applications.
• Build features, APIs, services, and data models.
• Understand and work across unfamiliar codebases.
• Troubleshoot application, API, database, and integration issues.
• Review and evaluate AI-generated code for correctness, security, performance, and maintainability.
• Translate and adapt software builds between programming languages.

Required Skills

• Python
• React
• JavaScript
• Java
• Node.js
• Rust
• Go
• TypeScript
• Strong full-stack development experience
• Experience with APIs, databases, application architecture, and debugging

Hiring Process

• Submit application and screening questions.
• Complete a ~30-minute AI interview.
• Complete a technical assessment, if required.
• Hiring manager review.

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

WHY JOIN US

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

ABOUT THE ROLE

We are looking for a Full Stack Software Engineer to help design and scale a platform used by enterprise procurement teams. This role blends frontend and backend ownership, working across React and Ruby on Rails to turn wireframes into production features. You'll collaborate closely with product, data science, and design to solve complex, ambiguous problems as part of a growing engineering team.

MUST HAVES

• 3+ years of experience building web applications using Rails, Entity, Spring, or a similar MVC framework.
• 3+ years of experience working with SQL databases, ideally ANSI-compliant relational databases like Postgres and RDS.
• 3+ years of experience using HTML and CSS, and styling various kinds of applications for the web.
• 3+ years of experience taking wireframes or mockups and converting them into clean and functional features.
• Experience with agile development methodologies and willingness to embrace changing requirements.
• Exceptional interpersonal skills, a strategic mindset, and a proactive approach to driving team success and achieving organizational goals. Leadership ambitions are a plus.
• A performance mindset that encompasses client-side and server-side performance optimization and techniques.
• Experience using Git for source control with GitHub.
• Experience working in fast-moving environments with on-call rotations and documented SLAs, SLOs, RPOs, and RTOs.

NICE TO HAVES

• Experience working with large datasets and building scalable frontend architectures that take into consideration HTTP requests, SQL queries, and memory management.
• Experience with Chart.js, Highcharts, D3, or other popular charting libraries.
• Semantic HTML and CSS with a focus on responsive design and performance.

WHAT YOU WILL DO

• Drive innovation and build scalable solutions.
• Work with Product Management and Staff Tech Leads to estimate and commit.
• Implement best practices, methodologies, and tools to optimize the development process and increase efficiency.
• Communicate effectively with stakeholders, including senior leadership, to provide updates on project status, risks, and issues.
• Participate in an on-call rotation.

PERKS AND BENEFITS

• Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.
• Competitive compensation: USD-based pay with education, fitness, and team activity budgets.
• Exciting projects: Modern solutions with Fortune 500 and top product companies.
• Flextime: Flexible schedule with remote and office options.