Ubique Systems

TRCI-26-04778

Senior/Lead React.js Frontend Engineer (DevOps/Containers)

Senior/Lead React.js engineer needed for a contract role in Warsaw, with strong React fundamentals (components, hooks, lifecycle) and Redux Toolkit state management. The role also expects leadership/mentoring, solid SQL/relational database design and optimization knowledge, and hands-on experience running containerized apps (Docker, Kubernetes, OpenShift/ECS). You’ll work in Agile/Scrum, use Git-based workflows (Bitbucket/GitHub), and contribute to CI/CD and code quality practices (TeamCity/Jenkins/Harness, SonarQube, code coverage, reviews, and vulnerability fixes), while communicating effectively with technical and non-technical stakeholders.

Position summary

Location
Poland
Workplace
On-site
Employment
Contract
Experience
Minimum 10 years and Maximum 14 years
Apply now

Role overview

Why This Role Matters.

Senior/Lead React.js engineer needed for a contract role in Warsaw, with strong React fundamentals (components, hooks, lifecycle) and Redux Toolkit state management. The role also expects leadership/mentoring, solid SQL/relational database design and optimization knowledge, and hands-on experience running containerized apps (Docker, Kubernetes, OpenShift/ECS). You’ll work in Agile/Scrum, use Git-based workflows (Bitbucket/GitHub), and contribute to CI/CD and code quality practices (TeamCity/Jenkins/Harness, SonarQube, code coverage, reviews, and vulnerability fixes), while communicating effectively with technical and non-technical stakeholders.

Your Impact

Deliver Enterprise Value

Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.

Collaboration

Work Across Teams

Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.

Growth

Learn Continuously

Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.

Career Path

Grow With Ubique

Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.

Responsibilities

What You'll Be Doing.

Every role at Ubique contributes directly to solving meaningful business challenges for our clients.

Technology stack

Tools & Technologies.

The platforms and technologies you'll use to build modern, enterprise-grade solutions.

01

React.js

02

React

03

Redux Toolkit

04

Redux

05

Vite

06

Docker

07

Kubernetes

08

K8s

09

OpenShift

10

ECS

11

AWS ECS

12

SQL

13

Relational Database

14

RDBMS

15

Git

16

Bitbucket

17

GitHub

18

Agile

19

Scrum

20

CI/CD

Requirements

Skills & Experience.

We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.

Essential

Required Qualifications

React.js fundamentals (components, hooks, lifecycle methods)

Redux Toolkit (state management)

Vite (front-end build tool/pipeline)

Leadership/mentoring of a development team

Docker (containerization)

Kubernetes (container orchestration)

OpenShift and/or ECS (container platforms)

Relational databases (design and optimization)

Git-based version control (Git, Bitbucket, GitHub)

Agile/Scrum (sprint planning, estimation)

CI/CD pipelines and DevOps tools (TeamCity, Jenkins, Harness, etc.)

Code quality practices (code reviews, code coverage)

SonarQube (code quality checks) and vulnerability assessment fixes

Strong analytical/problem-solving skills

Strong communication with technical and non-technical stakeholders

Preferred

Nice to Have

Experience with specific DevOps tools mentioned (ROD, LightSpeed)

Experience across multiple Git hosting platforms (both Bitbucket and GitHub)

Broader container platform exposure (both OpenShift and AWS ECS)

What you'll gain

More Than Just A Job.

We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.

Global Exposure

Collaborate with international clients and multicultural teams on enterprise programmes.

Continuous Learning

Expand your expertise through mentoring, certifications and hands-on project experience.

Career Growth

Take ownership, develop leadership skills and grow your consulting career over time.

Flexible Working

Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.

People First

Join a supportive culture where collaboration, respect and long-term relationships come first.

Enterprise Projects

Work on meaningful technology initiatives for leading organisations across industries.

Apply

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