---
title: 'Backend Engineer | Mid-Senior | Go at nexos.ai'
canonical: 'https://feeny.ai/job/backend-engineer-mid-senior-go-nexos-ai-kaunas-jkp09h11hnxq'
type: 'job'
last_seen: '2026-09-13'
---

# Backend Engineer | Mid-Senior | Go at nexos.ai

- **Company:** nexos.ai
- **Location:** Kaunas, Lithuania
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-07-10
- **Last confirmed live:** 2026-09-13
- **Apply:** https://jobs.ashbyhq.com/nexos-ai/65384a6b-b70f-4806-93d9-33cc3489605a

## Job description

Join the AI revolution. We’re building an all-in-one AI platform to help teams do their best work and automate every routine task you can think of. We’re looking for problem-solvers to turn powerful AI into an easy, no-code tool for teams everywhere.

Main Responsibilities

- Build and improve features that help our AI orchestrator deliver personalized experience.
- Write clean, reliable code with performance, scalability, and security in mind.
- Work closely with other developers to design, build, and maintain our Go-based microservices.
- Take end-to-end ownership of our services: from implementing them to deploying, monitoring, and improving them over time.
- Work in a fast-paced, constantly evolving environment and enjoy adapting, learning, and shipping solutions at high speed.

Core Requirements

- Experience to create scalable, stable, and secure code with Golang.
- Experience working with distributed technologies and NoSQL databases, with a strong background in high-load applications and microservices architecture.
- System design is nothing new to you - you're familiar with Domain-Driven Design principles and know what patterns to use when and why.
- Passionate about secure, compliant backend architecture and technologies.
- Comfortable balancing speed and quality in a startup environment.
- A collaborative mindset where you love to discuss, rethink, and redesign your ideas that create shared success within your team and the company.

Tools You Will Use

- Go
- MySQL
- gRPC
- Kubernetes
- Kafka

Salary Range

- Gross Salary 3500 - 7200 eur/month.

## What We Offer

- Professional growth. Internal and external events, online training, conferences, books - everything you need to reach your full potential.
- Health benefits. Private health insurance, online & on-site workouts (LT) / online workouts & sports access card (PL), consultations - to feel and be your best.
- Team spirit. Team buildings and parties with games, shows, tastings, food coupons, gifts - and it's on us.
- More free time. Stay with us and additional vacation days will be added to your calendar.
- Additional paid leave. Additional days are covered by us in cases of illness or special occasions.
- Flexibility. Flexible working time arrangement.

## About nexos.ai

## Company Overview
- **One-liner**: nexos.ai is an all-in-one AI platform that enables enterprises to build custom, no-code AI Agents and automate complex Workflows from a single, unified interface.
- **Entity Type**: Private (Series A)
- **Headquarters**: Vilnius, Lithuania
- **Founded**: 2024
- **Founders**: Tomas Okmanas (Co-founder, CEO) and Emanuelis Norbutas (Co-founder, CTO)

## Core Business
- **Primary industry**: Enterprise AI platform (Technology, Information and Internet)
- **Target customers**: B2B, mid-market to enterprise teams (marketing, sales, legal, finance, HR, engineering)
- **Mission or purpose**: “Unlock the full potential of AI” by providing a secure, model-agnostic platform that lets businesses run AI with confidence.

## Products & Services
- **nexos.ai Platform**: A unified interface offering:
  - **Multi-model chat** – Access ChatGPT, Claude, Gemini, Mistral, and hundreds of other models in one place with real-time web search and instant model switching.
  - **No-code AI Agents** – Build custom agents without coding; define roles, scope, and connect to company data.
  - **Workflow Automation** – Automate complex workflows with no-code triggers and actions.
  - **Integrations** – Connect to Google Workspace, SharePoint, Slack, GitHub, Zendesk, Confluence, and more (zero-code).
  - **Security & Compliance** – SOC 2 Type 2, ISO 27001 certified, GDPR-compliant, with private model hosting and European data residency.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Total funding of **$43.2M** (Seed $8M in Jan 2025, Series A $35.2M in Oct 2025)
- **Notable Investors/Partners**: Index Ventures (led both rounds), Evantic Capital (co-lead Series A)
- **Growth Signals**: Headcount grew **274.2% YoY** to 97 employees; operates in 9 countries (Lithuania, Poland, UK, Canada, Netherlands, Israel, etc.); 13 open roles as of mid-2026.

## Competitive Advantages
- **Data privacy by design**: Promises never to train AI models on customer data, with zero data retention option at the LLM level.
- **Enterprise-grade security**: SOC 2 Type 2, ISO 27001, GDPR-compliant, SSO, RBAC, and full audit logging.
- **Model-agnostic flexibility**: Lets customers use any LLM (OpenAI, Anthropic, Google, Mistral, Meta) and even bring their own API keys.
- **European hosting**: Infrastructure and most models hosted in Europe, meeting strict regulatory requirements.
- **No-code approach**: Lowers barrier for non-technical teams to build AI agents and automations.

## Strategic Focus
- **Enterprise adoption**: Building guardrails and observability tools so organizations can safely deploy AI across departments.
- **Security & compliance leadership**: Emphasizing certifications and data sovereignty to win regulated industries.
- **Platform expansion**: Growing integrations, pre-built agent templates, and workflow capabilities to replace point solutions.

## Why Work Here
- **Culture**: “Strong community” with beer Fridays, quarterly OKR parties, team-buildings, and workations; “not a dull moment.”
- **Work policy**: Hybrid – 3 days in-office (Vilnius or Poland), 2 days remote; some roles fully remote; digital nomad periods possible.
- **Perks**: Private health insurance, 25 free psychotherapy sessions, premium mental health app (Calm/Headspace/Mindletic), on-site gym & classes, learning budget (courses, conferences, library), extra vacation days for loyalty and life events.
- **Engineering culture**: “Innovate with industry experts”; technical tasks in hiring process; emphasis on Go, AI engineering, and product design.

## Sources
1. [nexos.ai](https://nexos.ai/)
2. [nexos.ai Careers](https://nexos.ai/careers/)
3. [LinkedIn](https://lt.linkedin.com/company/nexos-ai)

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