TNS

Software Developer Engineer in Test (SDET)

Poland · Work style not stated · Full time

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About the role

Description from the employer’s posting. Check the employer’s page for the current version.

EmployerTNS
LocationPoland
Work styleWork style not stated
Employment typeFull time
Employer posted28 Sep 2026

An extraordinarily talented group of individuals work together every day to drive TNS' success, from both professional and personal perspectives.Come join the excellence!

Overview

Software Developer Engineer in Test (Test Automation Engineer) to design test automation scripts to ensure that our products match our SW quality standards in support of a large-scale software deployment. You will need to be collaborative and influential across our team, working closely with development and DevOps teams to automate testing where possible, contributing to our Continuous Integration (CI) and Continuous Deployment (CD) pipeline. You will serve as key member for test Automation process toward quality-centric methodologies.

Responsibilities

Responsibilities :

Design, develop, and maintain automated test scripts and frameworks to support both functional and non-functional testing requirements across web applications and APIs

Show full description

Execute manual test cases, perform exploratory testing, and validate complex business scenarios that require human insight and judgment

Create comprehensive test plans, test cases, and test documentation to validate solution requirements and ensure thorough test coverage

Partner with DevOps teams to integrate automated test suites into our continuous integration pipeline, ensuring seamless deployment processes

Work closely with System Engineering, Architecture, Program Management, and Software Development teams throughout the entire development lifecycle

Serve as a key contributor to quality-centric methodologies and continuous improvement initiatives within an Agile environment

Requirements:

Skilled with a variety of languages, frameworks, tools and techniques for service and front end test automation, including Postman, Selenium and Testing Frameworks (ROBOT preferable)

Basic understanding of Web based application build using java Script based framework like Angular.

Strong experience with Python, JavaScript, HTML, CSS/Bootstrap, JSON-based RESTful services, SQL, and Linux environments

Familiarity with modern testing tools that enhance test design and execution, including AI-assisted tools such as GitHub Copilot.

Proven ability to write automation to verify data structures, data formats, and data values.

Knowledge of AWS cloud applications, preferably serverless architecture (Lambda, API Gateway), and RDBMS and NoSQL database technologies.

Experience with performance testing, stress testing, and reliability testing methodologies

Experience with code repositories using Git and CI/CD tools like AWS Code Pipeline and Jenkins

Demonstrated experience with Agile/SCRUM processes and collaborative tools such as Helix ALM and JIRA

Strong written and verbal communication abilities with proven cross-functional collaboration experience

B.S. in Computer Science or equivalent with 5+ years of working experience in Software Engineering or Software Engineering in Test (SDET) roles.

Additional Skills:

Knowledge of telecom related domains is desired with specific experience in numbering type products.

Proficiency with AI-powered development tools including GitHub Copilot and other generative AI platforms to accelerate test script creation, optimize test case generation, and enhance debugging processes while maintaining high code quality standards.

Benefits:

Competitive salary and benefits.

Hybrid working environment.

Working in an international environment, closely cooperating with a team based in the USA.

Private health care

Multisport card

Lunch card

Qualifications

Knowledge of telecom related domains is desired with specific experience in numbering type products.

If you are passionate about technology, love personal growth and opportunity, come see what TNS is all about!

TNS is an equal opportunity employer. TNS evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic.

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