Technical Lead - Software Engineering (Backend)

ESG Book; London; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

ESG Book seeks a Technical Lead for their London office, focusing on designing and developing scalable software solutions. You'll lead a talented engineering team, influence technology direction, and promote best practices in a mission-driven workplace dedicated to sustainability and innovation.

Benefits

Equity options

Annual training budget

Comprehensive benefits package

Clear growth paths and regular reviews

Qualifications

• Experience as a Staff Engineer or Senior Technical Lead.
• Expertise in backend languages (Golang, Java, C#, Python).
• Experience in designing scalable solutions and APIs.

Responsibilities

• Design and build scalable, high-performance SaaS solutions.
• Work closely with engineering teams to guide and support.
• Promote engineering best practices within the team.

Skills

Technical Leadership

Collaboration

Problem Solving

Innovation

Continuous Improvement

Education

Strong experience as a Senior Technical Lead

Tools

Docker

Kubernetes

GCP

Job description

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Technical Lead - Software Engineering (Backend), London

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Client:

ESG Book

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

b22b77ac14c5

Job Views:

12

Posted:

22.06.2025

Expiry Date:

06.08.2025

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Job Description:

Staff Engineer / Technical Lead - Software Engineering
Location: London (UK) or Frankfurt (Germany)
Working Style: Hybrid - home working with office presence typically once a week

About ESG Book

Established in 2018, ESG Book's cloud-based solutions are trusted by the world’s largest banks, corporates, investors, and consultants to navigate the complexities of sustainability with precision and efficiency.

By seamlessly integrating sustainability data with an advanced SAAS disclosure platform, we enable financial institutions and corporates to share and interpret mission-critical sustainability information for improved compliance and risk management.

We aim to be the sustainability data layer that powers the financial markets with the insight needed for a more sustainable future.

Why Join ESG Book as a Technical Lead?

As a Technical Lead, you’ll take a leading role in designing and building scalable, high-performance software solutions that underpin our mission. You'll work alongside a brilliant team of talented engineers to develop a cutting-edge SaaS platform for ESG data exchange using an event-driven architecture.

Our culture is built on autonomy, trust, and innovation giving you the space to do your best work and make a real impact.

What You’ll Gain

Autonomy & Influence:

• Own your projects, make key technical decisions, and shape the direction of our tech solutions.

A High-Performing Team:

• Be part of a forward-thinking group that values continuous improvement and encourages innovation.
• Enjoy clear growth paths, regular performance reviews, and opportunities to step into broader or leadership roles.
• Access an annual training budget, team support, and a comprehensive benefits package including equity options aligned with ESG Book’s growth and purpose.

Requirements

Your Day-to-Day

Technical Leadership:

• Designing, building, and deploying robust B2B SaaS Products and their associated infrastructure, monitoring tools, and platform tooling.
• Working closely with Engineering Managers and Product Managers to guide, support, and motivate the team in building high-quality, secure, and performant software that meets user and business needs.
• Leading and contributing to technical designs, providing thoughtful input and helping your teammates make sound architectural decisions while identifying and addressing potential future challenges within the team’s scope.
• Promoting engineering best practices within the team, helping to raise the bar on code quality, testing, and delivery processes, while sharing insights and approaches that can positively influence the wider engineering organisation.

Cross-Functional Collaboration:

• Working closely with colleagues across disciplines from product to data engineering, to deliver high-quality solutions.
• Supporting and guiding team members, sharing knowledge and helping others grow in a collaborative and inclusive environment.

Driving Improvement:

• Constantly looking for ways to evolve our systems and processes in line with industry trends.

What You’ll Bring (and build on your existing knowledge):

• Technical Leadership and Expertise: Experience as a Staff Engineer, or strong experience as a Senior Technical Lead, as well as influencing technology teams with your knowledge and expertise.
• Architecture: Design scalable solutions for resilient systems, e.g. using event-driven communications patterns, DDD, service-oriented patterns (micro-services a bonus) and RESTful APIs.
• Build Robust Solutions: Lead the design, development, and deployment of secure scalable software, using cloud technologies (GCP experience is a bonus) and modern software development practises including CI/CD and IaC.
• Coding: We are open to candidates with experience in most backend languages (Golang, Java, C#, Python) and you will be open to working with Golang as that's our main language
• API Development: Expertise in designing, building, and maintaining secure, scalable, and well-documented APIs.
• Containerisation: Proficiency with Docker and Kubernetes for cloud applications.
• Collaborate: Work with cross-functional teams to deliver high-quality solutions.
• Mentor and Lead: Support junior engineers, fostering a culture of growth and collaboration.
• Drive Continuous Improvement: Enhance processes, workflows, and systems to remain aligned with industry trends and best practises.

Why ESG Book?

A Mission-Led Culture:

• More than just a company, ESG Book is a community committed to sustainability and innovation.
• You’ll work with a diverse, inclusive team where everyone's voice matters.
• With structured reviews and career planning, you’ll have space to grow into senior or leadership roles.

Equity & Benefits:

• Receive a competitive salary and equity options. Your success is our success.

Apply Now

If you’re excited to be part of a purpose-driven company that values your contributions and offers room to grow, we’d love to hear from you. Join ESG Book and help shape a world that values sustainable finance, supported by a team that values collaboration, respect, and progress.