Technical Lead - Software Engineering (Backend)

Sorry, this job was removed at 08:19 a.m. (CST) on Tuesday, Jul 08, 2025
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2 Locations
In-Office or Remote
Fintech • Information Technology • Software • Financial Services
The Role
Description

Staff Engineer / Technical Lead - Software Engineering 

Location: Frankfurt (Germany) or London (UK) 

Work mode: Hybrid   

Employment Type: Full-Time 


About ESG Book 

ESG Book powers financial markets with the insight needed for a more sustainable future. 

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

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. 

Headquartered in London, and with offices globally, ESG Book's clients and partners include Citi, HSBC, Accenture, Google, and Bloomberg. 

Why Work with Us? 

A Mission-Led Culture:  

  • We’re committed to sustainability and innovation, globally and you’ll feel that in everything we do. 
  • Help shape the future of sustainable finance while contributing to solutions that drive change. 

Opportunities to Grow:  

  • Our flat structure and dynamic growth mean there’s room for you to step up, or move into different teams, take ownership, and make a real difference. 
  • Be part of a dynamic team that values your personal and professional growth. 

A Collaborative Environment:  

  • Work in a team where your voice matters 
  • Work alongside some of the brightest minds in the industry in an open, supportive, and diverse environment. 

Flexibility & Balance 

  • We empower you to achieve work-life balance with flexible schedules. 

The Technology Team 

The Technology Team designs, builds, and operates ESG Book’s cloud-native, event-driven SaaS and Data products that power corporates and financial institutions with the sustainability data and insights needed for reporting and better-informed decision making. 

Organized into cross-functional squads and working closely with the Product and Data teams, we use modern engineering practices to deliver reliable and scalable solutions to our clients' needs. 

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.  

Responsibilities:  

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.  

Mentoring:   

  • 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.  

Requirements:

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. 

We are an equal opportunities employer. This belief and approach apply to all aspects of employment, including recruitment and selection, opportunities for training, development and promotion and our terms and conditions of engagement. 

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 the future of sustainable finance, while building your own, too. 


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The Company
HQ: London
194 Employees

What We Do

ESG Book is a global leader in sustainability data and technology. Launched in 2018, the company offers a range of ESG and climate solutions that are used by many of the world’s leading investors and companies. Covering over 50,000 companies, ESG Book’s product offering includes ESG raw data, company-level and portfolio-level scores and ratings, analytics tools, and a SaaS data management and disclosure platform. ESG Book’s solutions cover the full spectrum of sustainable investing including ESG, climate, net-zero, regulatory, and impact products. ESG Book enables clients to access over 135,000 corporate disclosures, with solutions delivered through API technology for seamless integration. ESG Book’s platform makes sustainability data more widely available and comparable for market stakeholders, enabling companies to be custodians of their own data, providing framework neutral ESG information in real-time, and promoting transparency. Through our SaaS data management and corporate disclosure platform, ESG Book enables clients to assess over 50,000 corporate disclosures, with solutions delivered through the API technology for seamless integration. ESG Book’s platform makes sustainability data more widely available and comparable for market stakeholders, enabling companies to be custodians of their own data, providing framework-neutral ESG information in real-time, and promoting transparency

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