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Raimo Johanson

@raimojohanson1

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Senior software engineer specializing in scalable backend systems and cloud-native architecture.

Estonia

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What I'm looking for

I am looking for backend/cloud-focused roles where I can design scalable, fault-tolerant systems, work in cross-functional Agile teams, and drive performance and reliability improvements.

I am a Senior Software Engineer with 8+ years building scalable backend systems and modern web applications, specializing in Go, Python, and Node.js. I focus on microservices, distributed systems, and event-driven architecture to deliver reliable, high-performance solutions.

At Katana Cloud Inventory I redesigned core inventory services, achieving 99.9% availability, halving peak latency impacts, and reducing data inconsistencies by 40% through Kafka-based workflows. I have repeatedly improved API response times, increased throughput, and reduced deployment and incident recovery times using Docker, CI/CD, centralized observability, and cloud platforms.

I thrive in Agile teams, partner closely with frontend engineers using React/Next.js/Vue, and prioritize maintainable, testable systems. I am passionate about adopting modern tooling and cloud-native practices to build fault-tolerant, efficient products that scale with business needs.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Katana Cloud Inventory

Aug 2022 - Dec 2025 (3 years 4 months)

Led redesign of core inventory services using Go, Node.js, and Python, improving availability to 99.9% and reducing data inconsistencies by 40% through Kafka-based event-driven workflows.

Go Node Python Kafka AWS GraphQL REST APIs PostgreSQL MongoDB

Software Engineer

Ridango

Apr 2021 - Jul 2022 (1 year 3 months)

Developed backend services for public transport platforms using Java, Node.js, and Python, implemented Kafka telemetry pipelines to improve data freshness from minutes to seconds and cut manual operational work by 30%.

PostgreSQL MongoDB Java Node Python Kafka AWS Azure Django

Full-stack Developer

Trinidad Wiseman

May 2018 - Apr 2021 (2 years 11 months)

Delivered full-stack applications using Angular, React, Vue.js, Node.js, and Django, introduced Docker-based environments and cloud deployments that cut onboarding time by 50% and reduced feature development time by 20%.

React Next.js Angular Vue.Js Node Django PostgreSQL MongoDB Docker

Back-end Developer

Trinidad Wiseman

Feb 2017 - May 2018 (1 year 3 months)

Built Node.js backend services with PostgreSQL and MongoDB, optimized queries and indexing to improve API response times by 25% and supported early AWS deployments.