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Salary
≈ $40k – $70k per year (Estimated)
Location
Hybrid (Łódź, Poland)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 28, 2026. First seen by Alion on Mar 24, 2026. TNS scores B on the Alion truth index.

Overview
Company
Impact
Profile match

TNS

TNS (Transaction Network Services) is a US provider of data communications and interoperability services, headquartered in Reston, Virginia, that runs private networks and infrastructure-as-a-service for payments, telecommunications and financial markets. Founded in 1990 to serve the point-of-sale industry, it now offers payment connectivity, unattended payments for parking and EV charging, caller identity and branded calling, roaming and IPX services and trading connectivity from offices in the US, Europe, India, Australia and Brazil. It hires network engineers, NOC technicians, payments and security analysts, cloud architects and service delivery managers.

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

  • 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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