Senior Fullstack Engineer

Kpler

Senior Fullstack Engineer developing scalable email client solutions for clients at Kpler. Leading initiatives and mentoring junior engineers to drive engineering excellence.

Posted 5/20/2026full-timeAthens • 🇬🇷 GreeceSeniorWebsite

Tech Stack

Tools & technologies

AWSDistributed SystemsElasticSearchJavaScriptKafkaKubernetesMicroservicesMySQLPythonRedisRubyRuby on RailsTypeScriptVue.js

About the role

Key responsibilities & impact

Design and Build End-to-End Features: Develop scalable and high-performance frontend and backend systems, working across the stack with technologies like AWS, K8S, Ruby on Rails(including Sidekiq), Python and Vue.js.
Lead Strategic Alignment and Initiatives: Drive high-impact engineering initiatives and manage technical communication with engineering managers, product managers, designers, and customers independently to ensure solutions align with critical business and reliability requirements.
Champion Engineering Excellence: Write robust, maintainable code and implement best practices around testing, CI/CD, performance, observability and reliability.
Architect Scalable Systems: Design and implement distributed systems and microservices with event-driven architecture using Kafka.
Maintain and Scale Tech Stack: This role offers a unique balance - you'll lead the scaling efforts of our production Rails environment to keep pace with our growth, while simultaneously architecting 'greenfield' components as we refactor toward our future-state tech stack.
Mentor and Coach: Serve as an engineering leader by mentoring junior and mid-level engineers on development best practices, engineering operational excellence, and complex system design.
Own Operations and Reliability: Take part in monitoring, incident response, production support and performance tuning across the stack.
Contribute to Agile Culture: Actively participate in sprint planning, retrospectives, and other Agile ceremonies to continuously improve team practices.

Requirements

What you’ll need

6+ years developing production-grade applications with Ruby/Python, backend frameworks (preferably Ruby on Rails + Sidekiq and FastAPI) and frontend frameworks (preferably Vue.js) in TypeScript.
Strong expertise in designing, implementing, and maintaining microservices architectures.
Solid hands-on experience with Kafka and event-driven systems.
Proficiency in MySQL, Elasticsearch, and Redis.
Familiarity with AWS and infrastructure orchestration tools like Kubernetes and Helm.
Deep understanding of data structures, distributed systems, and system design principles.
A Bachelor’s degree in Computer Science, Computer Engineering, or related field.

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Kpler Website LinkedIn All Job Openings 201 - 500 employees Founded 2014 ⚡ Energy 🚗 Transport Energy
Transport
Data Services Kpler is a leading provider of real-time data and intelligence in the maritime and energy sectors. The company offers products and services designed to help businesses make informed decisions in commodity trading, energy transition, and maritime logistics. With a robust platform that provides detailed insights into physical markets, power markets, and financial markets, Kpler enables traders, analysts, fleet managers, and logistics professionals to optimize their operations and strategies. The company's tools include ship tracking, cargo inventories, and power market analytics, serving over 10,000 organizations worldwide. Senior Fullstack Engineer 🔥 3 minutes ago 🏢🏡 Athens – Hybrid ⏰ Full Time 🟠 Senior 🧑‍💻 Full-stack Engineer AWS Distributed Systems ElasticSearch JavaScript Kafka Kubernetes Microservices MySQL Python Redis Ruby Ruby on Rails TypeScript Vue.js Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Design and Build End-to-End Features: Develop scalable and high-performance frontend and backend systems, working across the stack with technologies like AWS, K8S, Ruby on Rails(including Sidekiq), Python and Vue.js.
Lead Strategic Alignment and Initiatives: Drive high-impact engineering initiatives and manage technical communication with engineering managers, product managers, designers, and customers independently to ensure solutions align with critical business and reliability requirements.
Champion Engineering Excellence: Write robust, maintainable code and implement best practices around testing, CI/CD, performance, observability and reliability.
Architect Scalable Systems: Design and implement distributed systems and microservices with event-driven architecture using Kafka.
Maintain and Scale Tech Stack: This role offers a unique balance - you'll lead the scaling efforts of our production Rails environment to keep pace with our growth, while simultaneously architecting 'greenfield' components as we refactor toward our future-state tech stack.
Mentor and Coach: Serve as an engineering leader by mentoring junior and mid-level engineers on development best practices, engineering operational excellence, and complex system design.
Own Operations and Reliability: Take part in monitoring, incident response, production support and performance tuning across the stack.
Contribute to Agile Culture: Actively participate in sprint planning, retrospectives, and other Agile ceremonies to continuously improve team practices. 🎯 Requirements
6+ years developing production-grade applications with Ruby/Python, backend frameworks (preferably Ruby on Rails + Sidekiq and FastAPI) and frontend frameworks (preferably Vue.js) in TypeScript.
Strong expertise in designing, implementing, and maintaining microservices architectures.
Solid hands-on experience with Kafka and event-driven systems.
Proficiency in MySQL, Elasticsearch, and Redis.
Familiarity with AWS and infrastructure orchestration tools like Kubernetes and Helm.
Deep understanding of data structures, distributed systems, and system design principles.
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Hard Skills & Tools

RubyPythonRuby on RailsSidekiqVue.jsKafkaMySQLElasticsearchRedisTypeScript

Soft Skills

leadershipmentoringtechnical communicationcollaborationproblem-solvingAgile practicesoperational excellencesystem design

Certifications

Bachelor’s degree in Computer ScienceBachelor’s degree in Computer Engineering