Principal Software Engineer (AI Platform)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on cloud software for the BioPharma sector aiming to apply AI/ML to improve patient outcomes. The technical stack includes Java and Spring Boot, distributed architecture on Kubernetes, and integrations with LLMs and AI Agents using Model Context Protocol (MCP). Responsibilities cover owning system architecture and scalability, defining MCP implementation standards, leading technical decisions and high-impact code reviews, and designing security and authentication (OAuth 2.1, OpenID Connect, PKCE, Auth0). Offered benefits include private medical care, Multisport and various social programs; meetings may occur until 18:00 CEST.

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Principal Software Engineer (AI Platform)

Company: ACAISOFT POLAND Sp. z o.o.

from: 6 October 2026
to: 5 November 2026
140 - 180 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:expert
working mode:remote
Warszawa, Mokotów
Warszawa, MokotówAleja Niepodległości 18View on map

Requirements

Expected technologies

Spring Boot
AI
Security
Auth0
LLM
Kubernetes
Java
AI Agents
Model Context Protocol (MCP)
OAuth 2.1
OpenID Connect
PKCE

Our requirements

  • Minimum of 7 years of professional experience in software engineering, with a proven track record in a Tech Lead, Principal Engineer, or Solutions Architect role
  • Practice with distributed systems design and cloud architecture (Kubernetes)
  • Hands-on expertise with Java and Spring Boot in high-throughput environments
  • Deep knowledge of AI Agents, LLM integrations, and Model Context Protocol (MCP)
  • Advanced background in modern identity and security frameworks, including OAuth 2.1, OpenID Connect, PKCE, and Auth0

Your responsibilities

  • Owning the overall architecture, system scalability, and long-term technical direction
  • Defining MCP (Model Context Protocol) implementation standards across teams and services
  • Driving security and authentication design for enterprise-grade AI integrations
  • Leading technical decision-making, architectural discussions, and high-impact code reviews

About the project

Hi there! If you’re looking for a high-impact position in an ambitious software house, we’ve got a match for you!
Currently, we are searching for a full-time Engineer to cooperate with our UK client - BioPharma organization. The mission is to unlock the potential of AI/ML to improve the lives of patients. Our client delivers powerful cloud software and services specifically designed to meet the evolving needs of the BioPharma sector.
⚠️ Due to the client's location, sometimes the team works until 6:00 PM CEST.
Meetings scheduled after 5 PM CEST are usually planned in advance.

This is how we organize our work

This is how we work

agilescrum
Company

What we offer

  • Private medical care
  • Multisport card
  • Friendly, informal atmosphere, and direct contact with everyone in the company
  • Modern technologies

Benefits

  • sharing the costs of sports activities
  • private medical care
  • remote work opportunities
  • flexible working time
  • extra social benefits
  • baby layette
  • school layette
  • employee referral program
  • charity initiatives
  • Gift vouchers for kids (birthdays, Christmas, Child's Day)

Recruitment stages

  • 1.
    HR call (15 min.)
  • 2.
    Technical call with our team (+/-60 min.)
  • 3.
    Meeting with our Client (30 - 60 min.)

ACAISOFT POLAND Sp. z o.o.

Acaisoft is a Polish company partnering with industry leaders across healthcare, telecom, fintech, and insurance. We specialize in delivering cloud-native, data-driven, and scalable solutions for enterprises operating in fast-moving environments. We currently serve around 30 active customers worldwide, mostly based in the U.S. We specialize mainly in:
* Data Engineering & AI
* Cloud-Native Solutions, including Cost Optimization
* Platform Engineering
Since technology is constantly being developed at such a fast pace, we always strive to be one step ahead of the market and keep up with the latest solutions.
Principal Software Engineer (AI Platform)
140–180 zł / hr. (B2B)
I apply to:
ACAISOFT POLAND Sp. z o.o.
Warszawa, Mokotów
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