Senior Software Engineer - RemoteQualis FlowLondon Bridge, SouthEast SE1

REMOTE FIRST (Fortnightly visits to London Office) / PERMANENT / FULL-TIME

Who are we?

At Qflow we’re on a mission to transform one of the world’s most pollutive industries: Construction. We help them cut waste and reduce their carbon emissions by providing construction and development teams with the data driven insights they need to deliver productive, profitable, and sustainable projects. Our team combines construction experience with software engineering and cutting-edge data science to deliver real-time alerts to risks and opportunities during construction.

After successfully raising an oversubscribed Series A investment round, our Engineering team is now growing. We are seeking a talented Senior Software Engineer who is eager to contribute to building a sustainable future. If you are passionate about sustainability, believe that with cutting-edge technology we can address tangible issues, you value radical transparency, unstoppable tenacity and encourage collaboration and curiosity within your team, this opportunity is tailor-made for you.

Your team and your role

We’re excited about the future and the growth and development of Qflow’s Engineering team! To support our plans, we’re looking for an experienced Software Engineer to join the team.

In this role, you’ll be responsible for designing and developing the core infrastructure that powers our products.

This role reports to the Senior Engineering Manager, and collaboration is key—you’ll work closely with the Engineering team, Product, and other departments to deliver high-quality code, scalable solutions, and ensure the codebase follows best practices. On a day-to-day basis, you will focus on the following:

• Designing, developing, and maintaining scalable, performant core platform infrastructure that powers our products.
• Driving and maintaining software quality through well-documented code, comprehensive testing, and continuous improvement of development processes.
• Leading code reviews and contributing to architectural decisions that shape the technical direction of the platform.
• Partnering with the Product team to translate business requirements into technical specifications and deliverable solutions.
• Fostering engineering excellence through technical mentorship, knowledge sharing, and cross-team collaboration.

Minimum Requirements

• Strong experience in an engineering environment, with a focus on building complex, scalable, and performant systems.
• Expertise in one or more of our core programming languages, such as C#, TypeScript, Python, or related languages.
• Demonstrated ability to identify opportunities, take initiative on improvements, and drive projects from concept to completion with minimal oversight.
• Strong product-oriented approach with experience in iterative development, including gathering user feedback, rapid prototyping, and continuously refining features based on metrics and customer needs.
• Deep knowledge of cloud platforms (particularly Microsoft Azure), including instrumentation, observability, and high-volume system monitoring.
• Proven track record in delivering high-quality code through test-driven development, pair programming, and collaborative development practices.
• Excellent communication and interpersonal skills, with demonstrated ability to convey complex technical concepts to diverse audiences and stakeholders.
• Strong mentorship capabilities with experience in guiding other engineers, participating in a culture of continuous learning, and supporting technical growth.

Our offer

Salary up to £85k

Remote-first team with regular meetings in London HQ

Company laptop and tools

25 days annual leave + 3 days company closure at Christmas + bank holidays

Private medical insurance

Critical illness and life insurance

Pension contribution up to 7%

Enhanced family policy

Overseas working policy

We’ll offset your annual carbon footprint on your behalf via Ecologi

Learning & development and career progression opportunities

Company social events (online and in person!)

Creating an environment where everyone feels valued, respected and heard is at the forefront of everything we do. We are committed to providing equal employment opportunities regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or veteran status.

We created a culture that extends to all aspects of our operations, including step-free access, as we believe that everyone should have equal opportunities to access our facilities, services, and digital platforms.

Important Notice: No Recruitment Agencies

We kindly request that recruitment agencies refrain from contacting us regarding this job posting. We are solely interested in direct applications from candidates. Any unsolicited communication or resumes received from agencies will not be considered or acknowledged. We encourage candidates to apply directly through the provided application process. Thank you for your understanding.

Role Type