Thanasis Gkliatis | CV, Senior Software Engineer

Summary

Senior Software Engineer with 10 years building distributed systems and platform infrastructure across HR-tech, marketing and B2B. These days I build through agentic coding: swarms of coding agents that write software my way, simple, reliable and tested. I design event-driven platforms on Kafka, Elasticsearch and PostgreSQL, modernise legacy monoliths, and ship LLM features to production.

Experience

Senior Software Engineer · n8n

May 2026 - Present

Working on n8n, the workflow automation platform. Remote.

Founding Engineer · Perkit (Ekinox S.A.)

Mar 2026 - Apr 2026

Built Perkit, an employee benefits platform, from a blank repository while the company was bootstrapping, as its top contributor.
Designed the stack: NestJS API, Next.js employer app and an Expo / React Native employee app on one TypeScript monorepo.
Set up Prisma, Stripe payments, Terraform and Kubernetes infrastructure, and a shared component library.

nestjs · next.js · expo · prisma · stripe · terraform · k8s

Principal Software Engineer · Kariera Group

Mar 2025 - May 2026

Set the microservice boundaries and integration patterns adopted across job board, billing and candidate teams.
Shipped semantic search and recommendations on OpenAI embeddings; users with 2+ interests grew from 35% to 60%.
Led LLM-assisted development to 80% of engineers, and cut hosting costs by $5k/month by replacing Druid.

nestjs · kafka · postgresql · elasticsearch · openai · iceberg

Technical Lead · Kariera Group

May 2023 - Feb 2025

Rebuilt the resume database into a full product; NPS went from 3-4 to 7-8 within a month.
Designed fault-tolerant, near-real-time sync for 3M+ candidate profiles on Kafka, PostgreSQL and Elasticsearch.
Moved the job board from a monolith to event-driven microservices; deploys went from one every 1.5 weeks to 5 a week.

Software Development Manager · Upstream, via Socital acquisition

Jan 2022 - Dec 2023

Led the technical launch of Socital's platform in Brazil after the acquisition, including a new cloud environment, on a tight timeline.
Led the V2 campaign editor, the largest customer-facing revamp, and the move of the codebase to TypeScript.
Designed integrations with Brazilian e-commerce platforms and the architecture for a new business vertical.

Tech Lead · Socital

Jan 2020 - Dec 2021

Owned platform architecture through rapid growth, including a multi-vendor subscription and billing system.
Cut the public script bundle by 80% and set up Cypress E2E testing for critical flows in CI.
Modernised infrastructure: blue/green Ansible deploys, centralised ELK logging and standard monitoring.

Senior Software Engineer · Socital

Jan 2018 - Dec 2020

Structured the monorepo with Yarn workspaces and refactored core domain models with DDD patterns.
Built a rate-limited, queue-backed integration service for high-volume third-party APIs.

Software Engineer · Socital

Oct 2016 - Jan 2018

Built integrations with Mailchimp, Moosend and Magento, including a Magento extension for on-site campaigns.

Independent work

Born to Party

borntoparty.app

Event invitations and hosting: sixty-seven designed themes, one link to send, RSVPs that come back to you.

Custom agent skill set

My own agent workflows for UI, tickets, regression tests and browser QA, used daily. Coming soon.