Role & seniority: Senior Test Engineer (5+ years experience) based in Manchester, UK

Stack/tools

Manual testing (front-end & API)
API testing (Playwright API, cURL, Postman; OAuth2.0 & JWT)
Linux shell/Bash
Documentation and defect lifecycle tooling
Optional: PostgreSQL/PSQL, AWS familiarity
AI/ML testing exposure (LLM, ASR, TTS) and in-house AI product suite

Top 3 responsibilities

Lead manual regression testing and ticket validation for 2–3 products; maintain regression packs
Manage bugs through full lifecycle; ensure clear communication with teams and stakeholders
Collaborate across development and data science; participate in agile ceremonies and testing strategy discussions

Must-have skills

5+ years in software testing (manual) with proven API testing (≥3 years)
Linux shell proficiency
Strong documentation skills
Experience testing AI-related systems (LLM, ASR, TTS) preferred
Ability to work independently and in cross-functional teams

Nice-to-haves

API testing with Playwright API, cURL, or Postman (OAuth2.0 & JWT)
Database testing (Postgres/PSQL)
Telecommunications software testing experience
Cloud familiarity (AWS or similar)

Location & work type

Location: Manchester, UK
Work type: Not specified in role listing

Full Description

Senior Test Engineer - Manchester, UK

We are looking for a Senior Test Engineer to test our customer experience platform. You will design and execute both manual front-end and API test scripts; perform debugging via CLI using shell; and have the opportunity to test our in-house AI product suite. This collaborative role involves working closely with development and data science, contributing to technical discussions, shaping testing approaches, mentoring others and embedding testing best practices. Ideal for an experienced manual tester looking to expand into modern AI technologies. This role provides the opportunity to ensure our systems are trustworthy, safe and consistent; directly impacting the performance and reliability of ConnexAI.

Experience

Minimum 5+ years of experience as a Software Test Engineer or similar role

Technical Competencies Required Proven background in Manual Testing Experience in working with AI systems Minimum 3 years of proven experience with API Testing Experience with Linux (bash / shell) Strong documentation skills Ideal API Testing experience with Playwright API, cURL or Postman (OAuth2.0 & JWT) DB Testing experience with Postgres / PSQL Experience testing LLM, ASR or TTS systems Experience using or testing Telecommunications software Knowledge of AWS or similar systems

Responsibilities

As a Senior Test Engineer, you will typically support 2 - 3 products. You will

Participate in and lead manual regression and ticket testing
Write, maintain and update manual regression packs
Manage bugs throughout their full life cycle
Communicate and collaborate with teams and stakeholders of varying technical knowledge, keeping them informed of pending, ongoing or completed testing
Attend agile ceremonies & team meetings; support planning, visibility and alignment

Non-Technical Competencies Proactive, able to plan efficiently after feedback or discussions Highly analytical with strong attention to detail Works independently and collaboratively Thrives in fast-paced environments; excellent time management

Strong communicator: documents concisely and expresses reasoned opinions