Senior Full Stack Engineer

Senior Fullstack Software Engineer

Location: London (3 days in the office)

Contract Type: Permanent

Salary: Up to £100,000 (DOE)

• Build end-to-end features across a modern tech stack (TypeScript, React, Node, Postgres, Redis, Kubernetes).
• Help shape the product's direction, from concept through to release, alongside product and design teams.
• Expand a growing third-party integration marketplace serving ambitious organisations across Europe and the US.
• Benefit from share options, enhanced parental leave, and 25 days of annual leave plus bank holidays.
• Join a well-funded, fast-growing company with significant backing from respected investors.

Our client is developing the next generation of workplace infrastructure with an innovative technology platform that streamlines core business processes through intelligent automation.

They are looking for a Senior Fullstack Software Engineer to help shape their product and deliver value to ambitious, scaling teams.

If you are an experienced full-stack developer with strong TypeScript expertise and a track record of shipping quality features in SaaS environments, this is an excellent chance to take ownership of meaningful work and grow with a high-performing team in London.

Company Overview

Our client is a well-funded, fast-growing technology company transforming how organisations manage their people and operations. With significant backing from respected investors, they support a diverse client base of ambitious, scaling businesses across Europe and the US. The company's mission is to evolve beyond simple data management, creating a platform that intelligently automates and integrates complex workplace tasks across various business functions.

They foster a culture centred on delivering outcomes quickly, maintaining high-quality standards, and promoting ownership and accountability across the team.

Position Overview

As a Senior Fullstack Software Engineer, you will play a key role in developing and scaling the platform. You will work across the full technology stack, building features that directly impact how organisations manage their operations. Your contributions will span backend infrastructure, frontend user experience, third-party integrations, and technical architecture planning, as you work closely with product teams and designers to deliver solutions that solve real customer problems.

Responsibilities

• Build end-to-end features, from definition through to release, collaborating with product and design teams.
• Write backend services using TypeScript, Node, Postgres, Redis, and Kubernetes.
• Develop frontend interfaces using TypeScript and React, ensuring a strong user experience and design craftsmanship.
• Expand and maintain the third-party integration marketplace, enabling seamless connections with external systems.
• Contribute to technical architecture planning and infrastructure improvements.
• Fix bugs, improve system performance, and maintain code quality across the platform.
• Support customers and sales teams by understanding their needs and translating feedback into product improvements.

Requirements

• 5+ years of professional experience in full-stack web application development, (some of this must be within SaaS environments.)
• Strong expertise in TypeScript and a genuine appreciation for the language and its ecosystem.
• Proven experience across the core tech stack: JavaScript, React, Node, Postgres, Redis, Kubernetes, GitHub, and Google Cloud Platform.
• Demonstrated ability to collaborate effectively with product teams and designers, with a track record of delivering customer value.
• An appreciation for design and digital product craftsmanship, with an eye for quality and detail.
• Experience working in fast-paced environments where shipping quickly and maintaining high standards are equally important.

Benefits

• Generous share options
• Enhanced parental leave.
• 25 days annual leave plus UK bank holidays.
• Regular team lunches at the London office.
• Quarterly team events and company offsites.
• A new MacBook and the necessary tools provided.
• An e-learning and development budget to support your growth.
• Top-tier private health, vision, and dental coverage.

Alongside this generous package, you will join a focused team with big ambitions where ownership, quality, and speed are valued equally. You will work in a supportive and forward-thinking environment that encourages curiosity and rewards initiative. The team prioritises consistency, resilience, and accountability, creating the space for you to grow your skills whilst making a tangible impact on the product and its customers.

Hera recruits with diversity and inclusion at its core and continues to embrace, champion and recognise the incredible assets that come from working and collaborating with people from all walks of life.

We're here to support you every step of the way, so if you require reasonable adjustments during the application or interview process, please don't hesitate to reach out to us.

We'll guide you through how we're able to support you with your specific needs and will ensure a fair and accessible recruitment process for all candidates, without you having to disclose the details behind your disability or condition.