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Mid Python Developer – Data & AI Backend (Spain)
Mid-level Python developer building backend services, data pipelines and tooling for an AI-powered business intelligence and analytics platform on AWS (data lake, semantic layer, analytical DB) for a DACH ERP provider. Works AI-first with Python, SQL, LLMs/AI agents and MCP servers; hybrid in Barcelona, €2900–4200/month gross.
Mid Cloud Infrastructure Engineer
Cloud Infrastructure Engineer at Present Connection (Xplicity group) working for a German AI process-automation client: design and operate AWS EKS cloud infrastructure with Terraform/IaC, administer Windows/Linux servers and networking, and automate via Bash/Python/PowerShell and CI/CD. Hybrid, Kaunas, Lithuania.
Mid/Senior PHP Developer
Mid/Senior PHP Developer joining Present Connection (part of the Xplicity group) to build in-house trading-systems software for a client in environmental commodities markets. Day-to-day work centers on Laravel 10/11, PHP 8.3+, MySQL/PostgreSQL, and Kafka in a hybrid team based in Kaunas.
Lead Data Analyst
Lead Data Analyst at CUJO AI designs big-data reports, queries and dashboards, analyzes network data for trends and threats, and manages change deployments to customers while collaborating with quality and software engineers. Core stack includes Python, SQL and big-data analysis, with AWS and CI/CD as pluses.
Backend Engineer, Money Movement and Revenue Streams
Backend engineer on Vinted's Payments 'Bridge' team in Kaunas, building migration and payout flows that move money off-platform to members as Vinted Pay replaces external payment providers. Day-to-day is Ruby services orchestrated as Temporal workflows, with MySQL, Kafka, Redis, and Prometheus/Grafana observability, frequent deploys, and on-call duty.
Senior Backend Engineer, Quality Engineering
Build and maintain automated testing frameworks and quality metrics for Vinted’s platform, using Go, Kotlin, Kafka, and BigQuery to ensure reliable software across Europe’s largest second-hand marketplace.
Lead Backend Engineer, Order Fulfilment
Lead a backend team building scalable order fulfillment services for Europe’s largest second-hand fashion marketplace using Go, Vitess, Redis, Kafka, and Temporal.
Junior Finance & Accounting Specialist
TransferGo is a growing fintech scale-up on a mission to champion financial freedom with care. We strive to provide tailored, more affordable financial services that make people's hard-earned money go further. Now…
Reputation and Community Operations Specialist
About Eneba At Eneba, we’re building an open, safe and sustainable marketplace for the gamers of today and tomorrow. Our marketplace supports close to 20m+ active users (and growing fast!), provides a level of trust,…
Senior Backend Engineer, VGo Carrier Technology
Senior backend engineer on Vinted Go's Pacman team, building Ruby-based services and APIs that route parcels between hubs and automate warehouse operations (mid-mile logistics) at scale. Stack includes a Ruby on Rails modular monolith, Vitess, Kafka, Jenkins, and Elastic; hybrid work from Kaunas with on-call duties.
Senior Backend Engineer II, Agent Platform
Senior backend engineer owning complex parts of Vinted's internal AI agent platform (Agent Platform), building the agent runtime end to end: sandboxes, agent identity/permissions, memory, and MCP integrations with tools like BigQuery and GitHub. Works on Kubernetes and AWS, likely in Python, Ruby, Go, or Rust, and mentors engineers.
Senior Backend Engineer, Revenue
Senior backend engineer on Vinted's Revenue domain (Pricing Product team) in Kaunas, building and owning a mission-critical Go service for pricing and discounts used by 85M members. Work involves RESTful APIs, event-driven systems, breaking up monoliths, and monitoring with Kibana, Grafana, and Datadog.