Senior Technical Lead – New Customer Acquisition & Lending Technology – London (Hybrid)

About brighthush

brighthush is a forward‑thinking fintech that empowers small and medium‑sized enterprises (SMEs) with flexible, data‑driven finance solutions. With a mission to support one million SMEs in their most critical moments, we combine cutting‑edge technology, advanced data science, and world‑class customer service to deliver instant, reliable funding and a suite of business‑support services. Our platform has already enabled over 100,000 businesses to secure more than £4 billion in funding, and we’re on a relentless pursuit to scale that impact even further.

At brighthush, we believe that speed, confidence, and control are the pillars of business success. That’s why we invest heavily in building a technology stack that is both robust and agile, enabling entrepreneurs to act with the speed they need, when they need it. Our culture is built on independent thinking, evidence‑based decisions, and a relentless focus on learning and growth.

Why Join the New Customers Team?

The New Customers team is the engine that turns a first application into a funded loan. From the moment a business owner fills out the online form to the final disbursement, the team owns the entire customer journey. This includes:

• The application flow and user experience.
• The logic that routes each application to the appropriate underwriting path.
• The document collection and verification process.
• The machine‑learning models that determine loan amounts and pricing.

Success is measured by the lifetime value added between sign‑up and the first loan. The team is autonomous, goal‑driven, and cross‑functional, bringing together engineers, data scientists, product managers, and strategy specialists. We collaborate closely with credit risk to balance speed with prudence, and we champion knowledge sharing through regular forums, research sprints, and dedicated R&D time.

The Role: Tech Lead – New Customers Team

As the Tech Lead, you will be the driving force behind the next phase of our technology evolution. You will spend the majority of your time building, designing, and leading the migration of our legacy monolith into a modern, service‑oriented architecture. Your influence will shape the direction of the team, the technology stack, and the engineering roadmap.

Key Responsibilities

• Architectural Leadership – Define the service boundaries, data contracts, and integration patterns that will replace the current monolith. Own the technical roadmap and prioritize feature delivery.
• Hands‑On Engineering – Write clean, maintainable code in a production environment. Build scalable, reliable services that can evolve with new models and business requirements.
• Experimentation & Data‑Driven Decision Making – Design and implement systems that allow data scientists to run controlled experiments on live traffic. Track long‑term outcomes and iterate on models and rules.
• Team Growth & Mentorship – Lead, coach, and grow a small engineering squad. Set clear expectations, provide technical guidance, and foster a culture of ownership and continuous improvement.
• Stakeholder Collaboration – Work closely with product, strategy, and credit risk to translate business goals into technical solutions. Communicate trade‑offs in terms of customer impact and business value.
• Quality & Reliability – Ensure that all services meet high standards of uptime, performance, and security. Implement monitoring, alerting, and incident response processes.

Essential Qualifications

• Proven Technical Leadership – Minimum two years of line‑management experience leading a team of engineers while remaining hands‑on.
• Backend Engineering Expertise – Deep experience in at least one object‑oriented language (Java, C#, Python, Go). Demonstrated ability to design, build, and operate customer‑facing backend systems in production.
• Commercial & Product Thinking – Ability to translate business objectives into technical plans, articulate trade‑offs, and explain the impact on customers and revenue.
• AI & Automation Proficiency – Experience building agentic workflows or leveraging AI to accelerate engineering tasks. Ability to evaluate AI outputs and ensure they meet production standards.
• Excellent Communication – Clear, concise writing and speaking skills. Adapt technical detail to diverse audiences, from engineers to executives.

Preferred Qualifications

• Lending or Payments Domain Experience – Background in engineering for financial services where decisions carry monetary risk.
• Experimentation Engineering – Built systems for long‑running A/B tests or multi‑armed bandit experiments.
• Legacy Migration – Successfully extracted critical business logic from a complex monolith and maintained full functionality.
• Data‑Science Collaboration – Worked from prototype to production with data scientists, challenging assumptions and ensuring model robustness.
• Python Stack – Proficiency with Python, Django, and PostgreSQL.
• Full‑Stack Experience – Comfortable building both frontend features and backend services.

Skills & Competencies

• Service‑Oriented Architecture (SOA) & Microservices
• Cloud Platforms (AWS, GCP, Azure) and DevOps practices
• CI/CD pipelines, automated testing, and code quality tools
• Observability: logging, metrics, tracing, and alerting
• Security best practices for fintech applications
• Data‑driven decision making and experimentation frameworks
• Leadership: coaching, conflict resolution, and team motivation
• Agile methodologies and product‑centric delivery

Career Growth & Learning Opportunities

At brighthush, your career trajectory is defined by the impact you create and the skills you develop. As the Tech Lead, you will:

• Shape the technical direction of a high‑impact product line.
• Mentor junior engineers and influence the engineering culture.
• Lead cross‑functional initiatives that span product, data science, and risk.
• Take ownership of end‑to‑end delivery, from concept to production.
• Participate in leadership development programs and external conferences.

We provide a generous learning budget, access to industry‑leading platforms, and a culture that encourages experimentation and continuous improvement. Whether you’re looking to deepen your expertise in AI, cloud architecture, or fintech product strategy, brighthush offers the resources and mentorship to help you grow.

Work Environment & Company Culture

brighthush is a hybrid, inclusive, and vibrant workplace. Our London office is a hub of creativity, collaboration, and fun. We value:

• Autonomy: You’re trusted to own your projects and make decisions that drive value.
• Learning: Regular talks, workshops, and hackathons keep the team on the cutting edge.
• Community: From running groups to ping‑pong tournaments, we celebrate teamwork outside the office.
• Innovation: We invest in AI, data science, and new tools to keep our technology ahead of the curve.
• Diversity & Inclusion: We actively foster a culture where every voice is heard and respected.

Compensation & Benefits

We offer a competitive salary range of £90,000 to £120,000, commensurate with experience and performance. In addition to base pay, you’ll enjoy:

• Flexible working hours and hybrid work model.
• Comprehensive medical insurance and private GP access.
• 25 days of annual leave plus a birthday day off and the option to buy/sell additional leave.
• One‑month fully paid sabbatical after four years of service.
• Unlimited unpaid leave for personal growth or travel.
• 3% pension contribution on total earnings.
• Employee equity incentive scheme.
• Generous parental leave and nursery tax benefits.
• Electric car and cycle‑to‑work schemes.
• Company retreats twice a year to destinations across Europe.
• Learning and development budget, access to platforms like Treehouse, and internal/external speaker series.

How to Apply

If you’re ready to lead a high‑impact team, drive architectural change, and help thousands of SMEs thrive, we’d love to hear from you. Submit your application through our careers portal, and include your salary expectations and any relevant portfolio or GitHub links.

Closing Statement

At brighthush, we’re not just building a fintech platform – we’re creating a movement that empowers entrepreneurs to grow, innovate, and succeed. As the Tech Lead for the New Customers team, you’ll be at the forefront of this mission, shaping the technology that delivers instant, reliable finance to businesses that need it most. If you’re passionate about technology, data, and making a tangible difference, join us and help us bring our vision to life.