Software Developer in Test

MillTech; Greater London; Hybrid; GBP 60,000 - 85,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

EV scheme

Cycle to work

Job summary

MillTech, headquartered in London, seeks a Software Developer in Test (SDET) to join a full-stack product team of testers, engineers, and designers. You will drive quality across the development lifecycle and implement automated testing frameworks.

You will collaborate on test planning, implement Playwright-based automation, and ensure high test coverage while working in a flexible, remote-friendly environment.

Qualifications

• Experience with FX systems and capital markets testing.

Responsibilities

• Drive quality from conception to finished product.

Skills

FX systems

QA methodologies

Playwright

JavaScript

SQL

White-box testing

Black-box testing

English proficiency

Attention to detail

AI testing tools

Education

Graduate

Tools

AWS

Azure

Job description

Position: Software Developer in Test (SDET)

Line Manager/Reports to: QA Lead

Education Level: Graduate

Location: +/- 2 hours from the UK

Roles: x2

About MillTech

MillTech provides advanced FX and cash management solutions to increase market access, reduce costs and automate manual workflows.

With a focus on automation, integration and connectivity, we have pioneered an independent risk management and liquidity solution for fund managers, institutions and global corporates, which is purpose-built to deliver best execution at scale.

Our end-to-end operational workflow enables automation, standardisation and cost transparency on all FX transactions and cash movements.

A highly secure platform centralises all client FX and cash activities to enhance oversight whilst increasing control, all at no additional costs. It offers quick onboarding routes, multi-bank best execution and hedging management services.

Headquartered in London, the world’s largest FX hub, MillTech provides services to clients in the United Kingdom, United States, Canada, Switzerland, Belgium, Denmark, Ireland, Luxembourg, Norway and Liechtenstein. MillTech is authorised and regulated by the UK’s Financial Conduct Authority (FCA FRN 911636) and registered with the USA’s National Futures Association (NFA).

Your Mission

Over the last couple of years, we have rapidly scaled. Growing our client base, product set and team. We move large sums of money around, and because of this, quality is key to everything we do. You will work as part of a full-stack product team of product people, designers, engineers, test engineers and subject matter experts to make our vision a reality.

Your responsibilities in this role will include:

• Helping drive quality from conception to finished product
• Developing detailed, comprehensive, and well-structured test plans and test cases
• Applying and maintaining automated testing processes for our products
• Contributing to the growth of our regression packs and ensuring we maintain a high level of automated test coverage
• Identifying, reporting and working with team members to resolve issues found
• Contributing to architectural decisions from a testability perspective
• Tracking quality assurance metrics, such as defect densities and open defect counts
• Staying up-to-date with new testing tools and test strategies

Required Skills:

• Experience working with Foreign Exchange systems
• Strong knowledge of software QA methodologies, tools and processes
• Experience with Playwright
• Programming skills in JavaScript
• Strong SQL skills
• Hands-on experience with both white-box and black-box testing
• Good spoken and written English
• A keen eye for detail and a commitment to excellence
• A high degree of personal honesty and integrity
• Understanding of how to effectively prompt and utilize AI tools for test planning, documentation, and analysis

Additional Skills you may have:

• Experience working on FX, Cash Management or Interest Rate financial systems
• AWS and/or Azure experience, particularly around test environment provisioning or cloud-based test execution

We are a fast-growth FinTech so a growth mindset and the ability to roll up sleeves and respond to changing circumstances with agility will be critical.

What we offer in return?

Our commitment is to help you flourish in this role, through support with your professional development, opportunities to be involved in key projects, and exposure to challenges that you may not be offered in a larger organisation. We will provide:

• A competitive salary with annual reviews;
• 25 days’ paid annual leave plus an additional day per year of service;
• Excellent staff development and training opportunities;
• Flexible working arrangements including remote working;
• Medical insurance;
• Dental insurance;
• EV Scheme and Cycle to work scheme;
• Enhanced maternity and paternity leave;
• 1 day off for charity work per quarter and many other benefits!

At MillTech we believe that diversity and inclusion are essential for fostering innovation and building a strong, supportive work environment. We are committed to embedding the best equality and diversity practices into all our activities, making us an inclusive, welcoming, and exciting place to work. We would welcome candidates from all backgrounds and experiences.