OLX Group
10,000+ employees
🛍️ eCommerce
🏪 Marketplace
👥 B2C
eCommerce • Marketplace • B2C
OLX is a marketplace platform that offers safe and easy-to-use trading services for consumers globally. With a focus on sustainability and community, OLX empowers individuals to connect and trade efficiently, making a positive difference in the world. Through various brands and a commitment to understanding customer needs, OLX fosters an innovative work environment that encourages teamwork and growth.
Staff Backend Engineer
🕒 April 7
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OLX Group
10,000+ employees
🛍️ eCommerce
🏪 Marketplace
👥 B2C
eCommerce • Marketplace • B2C
OLX is a marketplace platform that offers safe and easy-to-use trading services for consumers globally. With a focus on sustainability and community, OLX empowers individuals to connect and trade efficiently, making a positive difference in the world. Through various brands and a commitment to understanding customer needs, OLX fosters an innovative work environment that encourages teamwork and growth.
📋 Description
• Architect context pipelines for AI agents: curate what enters the context window (repo boundaries, domain knowledge, test outputs, CI feedback) so agents produce reliable, mergeable code, not just plausible code. • Prepare task specifications that are agent-actionable (clear acceptance criteria, referenced modules, explicit constraints) • Design and maintain agent-ready systems: well-bounded repos, comprehensive test suites as guardrails, CI/CD pipelines with structured output agents can parse and act on. • Serve as an AI Champion: join and strengthen our growing AI Champion community, contribute to workshops, curate effective agentic workflows, and mentor engineers on AI-assisted practices. Contribute to org-level AI tooling evaluations and OLX AI practices repositories. • Drive active migration from a legacy monolith to microservices, owning decisions on bounded domain decomposition. Working on making agentic workflows effective across a codebase whose boundaries are actively being redefined. • Set the bar for GraphQL API design, RESTful contracts, database schema, and CI/CD quality across the tribe. • Work with product and engineering leadership to identify high-value problems, propose initiatives, and drive impactful technical direction without direct authority • Guide senior engineers in managing and reducing technical debt with AI as an accelerator, not a shortcut.
🎯 Requirements
• You can use agentic workflows (Claude Code, Cursor Agent, or equivalent) as your default, not as a novelty. • You practice context engineering, not just prompt engineering; you design the full information architecture an AI agent needs to succeed: repo structure, CLAUDE.md / AGENTS.md configs, relevant code context, memory, and tool access. • You understand model routing trade-offs (e.g., when to use Haiku vs. Sonnet vs. Opus) and multi-agent orchestration. • Strong ownership instinct: AI output is a first draft, not a deliverable; you validate, refactor, and take full accountability. • You have strong Coding and Computer Science Fundamentals. Roughly ⅔ of your time will be hands-on technical work: designing solutions, steering and reviewing AI-generated code, developing new ideas, and reviewing others' contributions. • Strong background experience in Golang, Java/Kotlin (preferred technologies), and able to work with PHP. Flexible and capable of adjusting to changing project requirements, roles, and backend technologies as needed. • Scalable Systems Expertise. Experience with large-scale web applications, an economic-thinking mindset, and being able to design well-bounded future-proof domain systems, aligned with the business objectives. • Deep expertise in scalable distributed systems, CI/CD, RESTful and GraphQL APIs, AWS, and relational + NoSQL databases. • Big-picture thinker: aligns technical decisions with business strategy, influences without authority. • Clear communicator in English across engineering, product, and leadership audiences. • Self-starter who identifies what needs doing and takes initiative without waiting to be asked. • Skilled Technical Leader and Mentor: Guide and support engineers by setting a strong example. As a Staff Engineer, you are a role model, leading by example and through your expertise.
🏖️ Benefits
• Permanent contract • Salary + annual bonus up to 20% of your annual gross salary • Work with and impact all OLX websites around the world • Train and conference budget, and free access to Udemy courses • Health insurance and life insurance • MacBook Pro or a Windows Dell, along with the necessary accessories to make your work comfortable • 100% remote work (and the possibility to work from our office in Lisboa)
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