Scalac logo

Manual Tester

Scalac Gdańsk, Pomeranian Voivodeship, Poland

remotefull-time

Salary: $30 - $40 / hour

Posted Feb 5, 2026Apply by Mar 7, 2026

Role & seniority: Manual Tester, mid-level

Stack/tools: Web applications; backend/API (REST, real-time); data-heavy UIs with charts/stats; testing tools: JIRA, TestRail (or similar); performance testing workflows; knowledge of data presentation

Top 3 responsibilities

  • Manually test in staging and production, validate real-time data accuracy and UI/functional stability

  • Create/maintain test cases for critical workflows; log and track defects; verify fixes

  • Collaborate with developers/client, participate in meetings/demos, support stability during live broadcasts

Must-have skills

  • 5+ years manual testing of web apps or backend systems

  • Experience with large, dynamic data sets and mission-critical/live projects

  • Strong attention to data accuracy; test documentation proficiency (JIRA, TestRail or similar)

  • Understanding of charts/statistics data presentation

  • Experience with performance testing (plan/run/maintain load tests); analyze results; communicate findings

  • English communication (minimum B2); availability to align with US East Coast hours (EST/EDT)

Nice-to-have

  • Experience in fintech/investment/data analysis projects

  • Familiarity with API, Node.js, Redis

  • Agile/Scrum experience

Location & work type

  • Remote; B2B engagement

  • Project duration up to 1 year

  • US East Coast hours alignment; rate 30–40 USD/h

Full Description

Position: Manual Tester

Project duration: up to 1 year

Location: Remote/b2b

Working hours: Aligned with the US East Coast ( EST/EDT),

Rate: 30-40$/h

Project Overview

The project involves a mission-critical application used during live television election coverage. The application allows presenters to display and discuss dynamic, real-time data, including results, statistics, and charts. Due to the live broadcast environment, the system requires high reliability, data accuracy, and production-grade attention to detail, as any issue could have an immediate impact on the broadcast.

Responsibilities

Perform manual testing of the application in staging and production environments Verify data accuracy and its correct presentation in real-time Test application functionality, UI, navigation, filters, and stability Validate backend functionality and API integrations (REST / real-time) from an end-user perspective Create and maintain test cases and scenarios for critical workflows Log, track, and verify defects using tools such as JIRA or similar Collaborate closely with developers and the client to resolve and verify issues Participate in team meetings, demos, and project updates Support the team in maintaining application stability during live broadcasts

Requirements

Must have

At least 5 years of experience in manual testing of web applications or backend systems Experience testing applications with large, dynamic data sets Experience working on mission-critical or live projects Strong attention to detail and commitment to data accuracy Experience creating test documentation and using tools like JIRA, TestRail, or similar Good understanding of charts, statistics, and how to present data correctly Experience with performance testing, including planning, running, and maintaining performance, load, and stress tests Ability to analyze test results, spot performance issues, and discuss findings with the development team Experience collaborating with developers on performance/load test analysis Good English communication skills (minimum B2) Availability to work US East Coast hours (EST/EDT)

Nice to Have

Experience in fintech, investment, or data analysis projects Familiarity with API, Node.js, Redis Experience with Agile / Scrum methodologies

Poziom w hierarchii Kadra średniego szczebla Forma zatrudnienia Pełny etat Funkcja Inżynieria i Technologie informatyczne Branże Tworzenie oprogramowania

Manual TestingWeb ApplicationsData AccuracyTest DocumentationJIRAAPI IntegrationsPerformance TestingCollaborationAttention to DetailDynamic Data SetsChartsStatisticsAgileScrumNode.jsRedismulti-location

Cookies & analytics consent

We serve candidates globally, so we only activate Google Tag Manager and other analytics after you opt in. This keeps us aligned with GDPR/UK DPA, ePrivacy, LGPD, and similar rules. Essential features still run without analytics cookies.

Read how we use data in our Privacy Policy and Terms of Service.