Senior Software Engineer I at Kaluza | Hybrid in the UK

Job Title: Senior Pre-Sales EngineerLocation: London/Bristol - HybridSalary: £56,000 - £70,000Team: CommercialReporting To: Head of Client SolutionsApplication Closing Date: Monday 6th April 2026This role is available in either London or Bristol and requires existing legal authorization to work in the UK. Currently, we are unable to provide visa sponsorship for this position. We prioritize building a diverse global team and evaluate our sponsorship policy on a case-by-case basis. We encourage you to check our careers page for future opportunities that may offer visa sponsorship.Kaluza is transforming the energy landscape with our Energy Intelligence Platform, simplifying the complexities of energy management. We empower energy companies to tackle contemporary challenges while facilitating the transition to a cleaner, electrified future. By harnessing the power of data, artificial intelligence, and real-time decision-making, we create growth opportunities for our partners.Our innovative approach combines predictive algorithms with user-centric design, making clean energy both reliable and affordable. With teams operating across Europe, North America, Asia, and Australia, as well as a joint venture with Mitsubishi Corporation in Japan, we collaborate with industry leaders such as OVO, AGL, and ENGIE, alongside pioneers like Volvo and Volkswagen.Key Responsibilities:AI-Driven Prototyping: Utilize Large Language Models (LLMs) such as Claude and Gemini to swiftly develop and enhance proof-of-concept applications and mock services. Your ability to leverage AI will enable you to operate at a pace that exceeds traditional development cycles, allowing for rapid iteration and innovation.

Role Overview Kaluza is hiring a Platform Engineer to join the Platform Engineering team in London, Edinburgh, or Bristol. Hybrid work options are available. This role reports to the Engineering Manager. The position is open to candidates with the right to work in the UK. Currently, Kaluza cannot offer visa sponsorship for this role. For future opportunities with sponsorship, please refer to the Kaluza careers site. About Kaluza Kaluza develops an Energy Intelligence Platform that helps energy companies address modern challenges and accelerate the shift to a sustainable, electrified future. By combining data, AI, and real-time decision-making, Kaluza supports partners in making clean energy reliable and affordable. The company works with major names like OVO, AGL, ENGIE, Volvo, and Volkswagen, and operates teams across Europe, North America, Asia, and Australia, including a joint venture with Mitsubishi Corporation in Japan. What You Will Do Platform Development: Design and build a scalable, reliable platform that makes software development, deployment, and operations easier for engineering teams. Automation and Tooling: Develop tools that simplify complex platform tasks, aiming to improve developer experience and efficiency. Infrastructure as Code: Use tools like Terraform, Helm, and Crossplane to automate cloud infrastructure, promoting GitOps practices. Monitoring and Observability: Work with the Site Reliability Engineering team to implement strong monitoring and logging systems. Security and Reliability: Apply security best practices to ensure the platform remains secure and dependable. Compensation Salary: £41,600 - £60,000 Location London, England, United Kingdom Edinburgh, Scotland, United Kingdom Bristol, England, United Kingdom Hybrid work arrangements are available.

Role Overview Kaluza is seeking a Pre-Sales Solutions Architect to join the Commercial team, reporting to the Head of Client Solutions. This hybrid role is based in London or Bristol, with a salary range of £100,000 - £130,000. Kaluza develops the Energy Intelligence Platform, helping energy companies manage complexity and move toward a sustainable, electrified future. The platform uses data, AI, and real-time decision-making to turn energy challenges into growth opportunities. Kaluza works with partners such as OVO, AGL, ENGIE, Volvo, and Volkswagen, and operates globally, including a joint venture with Mitsubishi Corporation in Japan. What You Will Do Lead the technical side of sales engagements, working closely with Pre-Sales Consultants to guide prospective clients through Kaluza’s platform. Run discovery sessions to understand client needs and design tailored solution architectures. Present technical concepts, architecture, and data models to clients and stakeholders. Design "to-be" architectures and integration patterns that meet client business requirements and align with Kaluza’s capabilities. Support early-stage prototypes and deliver presentations at client sites. Collaborate with internal teams to ensure a smooth transition from sales to implementation. Share insights with the Product Architecture team on market trends and integration needs. About the Role Each engagement is unique. Some days focus on early-stage prototypes, others on in-depth technical sessions or advising internal teams. The position offers a mix of technical design, client interaction, and collaboration with colleagues across product and architecture. This is a chance to deepen technical expertise and client management skills while shaping how energy companies adopt new technology. Requirements Experience in technical pre-sales, solutions architecture, or a related field. Ability to communicate technical concepts clearly to both technical and non-technical audiences. Strong collaboration skills for working with clients and internal teams. Comfort with designing architectures and integration patterns for complex platforms. Compensation Salary: £100,000 - £130,000 Location Hybrid work pattern based in London or Bristol, United Kingdom. Additional Information Please note: Kaluza is not able to offer visa sponsorship for this role at this time. The sponsorship policy is reviewed for each position. For future opportunities that may offer sponsorship, check the company’s careers site.

Position: Security EngineerLocation: London, Bristol, or Edinburgh (Hybrid options available)Salary Range: £63,000 - £93,000Team: Security Engineering TeamReporting To: Security Engineering ManagerThis role requires existing right to work in the UK. Please note that we currently do not offer visa sponsorship for this position.Kaluza is at the forefront of the energy transition, transforming energy complexity into seamless coordination. Our mission is to assist energy companies in navigating today’s challenges while accelerating the shift towards a cleaner, electrified future.Our platform enables millions of real-time decisions across homes, devices, markets, and grids. By merging predictive algorithms with human-centered design, Kaluza ensures that clean energy is dependable, affordable, and adaptable to everyday life.With teams strategically located across Europe, North America, Asia, and Australia, and a joint venture with Mitsubishi Corporation in Japan, we empower leading organizations including OVO, AGL, and ENGIE, alongside innovators like Volvo and Volkswagen.Your Role:Implement security platforms and tools to proactively prevent, accurately detect, and efficiently respond to emerging security threats.Collaborate with Platform Engineering and IAM teams to integrate Zero Trust architecture and enforce robust privileged access management (PAM) controls.Support Kaluza’s product teams in delivering secure systems rapidly while promoting a culture of collaboration and security best practices.

Job Title: Technical Services EngineerLocation: London - OnsiteSalary: £59,000 - £65,000Team: Technical ServicesReporting To: Senior Technical Services ManagerClosing Date for Applications: Monday 20th AprilThis role is based in London and requires existing right to work in the UK.At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship.Kaluza is pioneering the Energy Intelligence Platform, converting energy complexity into seamless coordination. We assist energy companies in overcoming today's challenges while propelling the transition to a clean, electrified future.Our platform orchestrates millions of real-time decisions across homes, devices, markets, and grids. By merging predictive algorithms with human-centered design, Kaluza ensures clean energy is dependable, affordable, and seamlessly integrates into everyday life.With teams located across Europe, North America, Asia, and Australia, and a joint venture with Mitsubishi Corporation in Japan, we empower leading companies such as OVO, AGL, and ENGIE, along with innovators like Volvo and Volkswagen.Responsibilities:Technical Escalation & Support: Deliver exceptional customer service to Kaluza’s internal teams, serving as a vital escalation point for complex technical requests and hardware diagnostics.Platform Administration: Take ownership of the administration and health of primary productivity tools, including Google Workspace, Slack, and the Atlassian suite (Jira/Confluence).Identity & Access Management: Oversee identity and SSO workflows through Okta, ensuring secure and seamless access for our global workforce.Fleet Management: Manage the configuration and deployment of our predominantly macOS hardware fleet, upholding high standards for device security and performance.Process Engineering: Identify and implement improvements to Tech Services workflows, creating and maintaining high-quality documentation for internal processes and user self-service.Infrastructure & Events: Support the technical infrastructure for internal events and initiatives.

Job Title: Senior Software Engineering Manager - Quality Tooling Location: London / Bristol / Edinburgh (Hybrid options available) Salary: £100,000 - £125,000 Team: Quality Reporting To: Head of Quality This position requires an existing right to work in the UK. Currently, we are unable to provide visa sponsorship for this role. We are dedicated to fostering a diverse and global team, and our sponsorship policy is assessed on a case-by-case basis. We encourage you to regularly check our careers site for future opportunities where visa sponsorship may be available. Kaluza is at the forefront of transforming energy complexity into seamless coordination through our pioneering Energy Intelligence Platform. We empower energy companies to navigate today’s challenges while facilitating a transition to a clean and electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets, and grids, combining predictive algorithms with user-centered design to make clean energy reliable, affordable, and adaptable to everyday living. With teams spanning Europe, North America, Asia, and Australia, and a joint venture with Mitsubishi Corporation in Japan, we support industry leaders including OVO, AGL, and ENGIE, alongside innovators like Volvo and Volkswagen. Key Responsibilities: Lead the development of solutions that enable Quality, Engineering, and Client Teams to enhance software testing capabilities at Kaluza. Your responsibilities will include: Establishing strong relationships with stakeholders and clients. Crafting strategies and architectures that align with the requirements of internal teams and clients. Identifying and implementing operational improvements to enhance team efficiency and product quality. Collaborating closely with a range of internal teams, including Delivery, Product, Customer Success, Commercial, and Engineering. Oversee a cross-functional team of Quality and Developer Engineers, contributing to both the technical and product vision of your team to ensure successful product outcomes. Guide team members in making technical decisions that resonate with Kaluza’s business objectives.

Job Title: Lead Pre-Sales Consultant - Energy RetailLocation: London/Bristol - HybridSalary: £94,000 - £128,000Team: CommercialReporting To: Head of Pre-SalesApplication Deadline: Monday 6th April 2026This position is based in London/Bristol and requires the right to work in the UK. Currently, we cannot provide visa sponsorship for this role. We are dedicated to fostering a diverse workforce, and our sponsorship policy is assessed on a case-by-case basis. Please check our careers page for future opportunities where visa sponsorship may be available.Kaluza is revolutionizing the energy sector with its Energy Intelligence Platform, simplifying the complexities of energy management. We empower energy companies to navigate today's challenges while propelling the transition to a clean, electrified future through innovative use of Data, AI, and real-time decision-making. This approach transforms energy complexities into growth avenues for our partners.By integrating predictive algorithms with user-friendly design, Kaluza ensures that clean energy is both reliable and affordable. With a presence across Europe, North America, Asia, and Australia, and a strategic partnership with Mitsubishi Corporation in Japan, we serve leading firms such as OVO, AGL, and ENGIE, as well as innovators like Volvo and Volkswagen.Key Responsibilities:Discovery & Solution Design: Facilitate discovery workshops with clients to identify their business needs and challenges, translating intricate requirements into actionable outcomes that align with our comprehensive solution offerings for effective implementation.Tender & Proposal Excellence: Contribute vital technical and strategic insights in the development of tender responses (RFPs) and client proposals....

Kaluza is hiring a Software Engineer II to help advance its Energy Intelligence Platform. This hybrid role can be based in London, Bristol, or Edinburgh. The team focuses on building scalable SaaS solutions for energy retailers, supporting the shift to cleaner, electrified systems. The salary range for this position is £46,000 to £60,000. Please note that visa sponsorship is not available at this time. Role overview This position reports to a Software Engineering Manager. The specific team and responsibilities will be shaped during the interview process, matching your experience to areas where you can make the most impact. The Talent Acquisition team will provide guidance throughout the process. What you will do Contribute to the Energy Retail platform, a SaaS product designed for energy retailers and decarbonization initiatives. Develop and enhance backend services with TypeScript and Node.js, focusing on reliable, event-driven systems at scale. Work closely with product managers, designers, and engineers to deliver features that address user needs. Take responsibility for specific services or components, supported by experienced colleagues. Write well-tested code, interact with databases, and use cloud technologies such as AWS. Help maintain stable production systems and participate in a culture of continuous improvement. About Kaluza Kaluza’s platform uses data, AI, and real-time decision-making to help energy companies manage complexity and deliver practical solutions. The company partners with organizations like OVO, AGL, ENGIE, Volvo, and Volkswagen, and operates globally, including a joint venture with Mitsubishi Corporation in Japan. Kaluza’s mission is to make clean energy reliable and affordable through predictive algorithms and human-centered design.

Role Overview Position: Software Engineering Manager – Developer Experience & AI Location: London or Bristol (Hybrid working) Salary: £72,000 - £91,000 Team: Developer Experience & Release Engineering Reports to: Head of Platform Kaluza builds data-driven, AI-powered tools that help energy companies solve complex challenges and accelerate the shift toward clean, electrified solutions. Teams across Europe, North America, Asia, and Australia collaborate with partners including OVO, AGL, ENGIE, Volvo, and Volkswagen. By combining predictive algorithms with user-centered design, Kaluza aims to make clean energy reliable and affordable. What You Will Do Lead and scale two specialized engineering teams, Release Engineering and DevX AI, focused on reducing engineering friction and developing AI-native workflows. Foster a culture of technical excellence and psychological safety, supporting data-driven, product-focused engineers. Define and maintain the roadmap for Release Engineering, ensuring frequent, reliable, high-quality code deployments for Kaluza’s engineering community. Guide the evolution of Kaluza’s Internal AI Engineering Platform, including infrastructure such as MCP servers and agentic workflows, to advance productivity. Encourage cross-team collaboration within the Kaluza Technology community to standardize and adopt best practices across the organization. Eligibility and Work Authorization This role is based in the UK and requires a valid right to work in the UK. Kaluza cannot provide visa sponsorship for this position at this time. The company reviews sponsorship policies on a role-by-role basis. For future roles that may offer sponsorship, please check the Kaluza careers site.

Role Overview Kaluza is hiring a Software Engineer II focused on front end development. This position is open in Bristol, Edinburgh, and London. What You Will Do Work with teams from different disciplines to design and build features for Kaluza’s platforms. Create user interfaces that are both responsive and high-performing. Help develop scalable applications that improve the experience for users. Locations Bristol, England, United Kingdom Edinburgh, Scotland, United Kingdom London, England, United Kingdom

Job Title: Senior Software Engineer I Location: London - Hybrid Salary: £60,000 - £80,000 Team: Flex Reporting to: Software Engineering Manager Note: Currently, we are unable to provide visa sponsorship for this position. We are dedicated to fostering a diverse, global team and evaluate our sponsorship policy on a role-by-role basis. Please monitor our careers site for future opportunities that may offer visa sponsorship. Kaluza is at the forefront of transforming energy complexities into seamless solutions through our Energy Intelligence Platform. We empower energy companies to navigate modern challenges while expediting the transition to a clean, electrified future. Utilizing cutting-edge Data, AI, and real-time decision-making, we convert energy intricacies into growth opportunities for our partners. By merging predictive algorithms with human-centered design, Kaluza ensures that clean energy is both reliable and affordable. Our teams span across Europe, North America, Asia, and Australia, and we maintain a joint venture with Mitsubishi Corporation in Japan. We collaborate with industry leaders such as OVO, AGL, and ENGIE, alongside innovators like Volvo and Volkswagen. Key Responsibilities: As a member of the Flex platform team, you will play a critical role in developing systems that connect energy retailers, grid operators, and consumers, fostering a more adaptable and dynamic energy infrastructure. Your daily tasks will involve designing and implementing scalable features, including integrating technologies like electric vehicles and facilitating customer offerings such as “Charge Anytime.” You will collaborate closely with data scientists and backend engineers on fundamental optimization challenges, taking ownership of features from conception through continuous enhancement. Throughout this process, you will produce high-quality, well-tested code and contribute to a robust engineering culture, developing software that significantly contributes to decarbonizing transport and home energy usage at scale. Qualifications: Proficiency in at least one programming language and experience contributing to diverse, complex systems. Strong understanding of contemporary engineering practices, encompassing continuous delivery, test automation, and agile methodologies. A fervor for collaborating within cross-functional teams to tackle challenging problems and build innovative features.

Join our dynamic Release Engineering team at Kaluza as a Site Reliability Engineer. In this pivotal role, you will play a crucial part in enhancing our software development lifecycle by developing innovative engineering solutions that empower our software teams to deploy high-quality code efficiently. Your efforts will significantly boost engineering productivity through the optimization of testing, deployment, and release processes across all Kaluza engineering teams.

Kaluza invites professionals to join its talent community, even when there are no current openings that fit their experience. As a B Corp-certified energy intelligence platform, Kaluza focuses on accelerating the move toward a zero-carbon energy system. The company values people who help drive this mission. Who Can Join Kaluza welcomes interest from individuals with experience in several areas, including: Software engineering, artificial intelligence, and machine learning Product management and design Commercial roles, sales, and partnerships Operations and strategy How the Talent Community Works Submit a CV and a short note describing the type of work or position you are looking for. The talent acquisition team reviews each submission and keeps details on file for up to 12 months. Update your information at any time if your interests or experience change. What Happens Next This is not an application for a specific job, so there is no set timeline. If a suitable position becomes available that matches your background, the team will get in touch directly. Kaluza aims to acknowledge every submission and will reach out if a relevant opportunity arises. Locations Kaluza welcomes talent community submissions from those interested in Bristol, Edinburgh, Lisbon, London, Melbourne, or Paris.

Job Title: Product Manager (Data)Location: London or Bristol (Hybrid)Salary: £60,400 - £70,800Team: Data ProductsReporting To: Director of ProductThis role requires existing right to work in the UK.At this time, we are unable to offer visa sponsorship for this role. We are committed to building a diverse, global team and evaluate our sponsorship policy on a role-by-role basis. We encourage you to monitor our careers site for future opportunities where visa sponsorship may be available.Kaluza is at the forefront of the Energy Intelligence sector, transforming the complexities of energy into streamlined coordination. We empower energy companies to tackle today's challenges while propelling the transition to a clean, electrified future. By harnessing Data, AI, and real-time decision-making, we convert energy complexity into growth opportunities for our partners.Utilizing predictive algorithms alongside human-centered design, Kaluza ensures that clean energy is both reliable and affordable.With teams spanning Europe, North America, Asia, and Australia, and a joint venture with Mitsubishi Corporation in Japan, we collaborate with leading companies such as OVO, AGL, and ENGIE, in addition to innovators like Volvo and Volkswagen.Key Responsibilities:As the Product Manager for Data Product Implementation, your main role will be to adeptly oversee the rollout of data products for a significant Kaluza client. You will collaborate closely with engineers and specialists within the Kaluza Data Product team, as well as other Kaluza domain implementation leads and pertinent client subject-matter experts to ensure that our data model and products are tailored to meet our client's specific requirements.Responsibilities include:Client Engagement: Clearly articulate Kaluza data products and data models to key clients.Requirements & Roadmap: Document and translate client requirements for data products, aligning them with the global product roadmap priorities.Development Support: Assist development by refining and prioritizing backlog items, collaborating with software engineers to deliver solutions that add value for clients.Product Adoption: Foster product adoption through the creation of technical documentation, release communications, and conducting training sessions.

Kaluza is seeking a Global Staff Engineer to guide the next wave of energy technology. This position takes the lead on challenging projects and plays a key part in developing new solutions for the energy sector. Role overview The Global Staff Engineer will work on initiatives that drive innovation in how energy is managed and delivered. The role involves solving complex technical problems and collaborating with teams to create impactful products. Locations Bristol, England, United Kingdom Edinburgh, Scotland, United Kingdom London, England, United Kingdom

Job Title: Senior Engineer I Location: London, Bristol, or Edinburgh (Including Hybrid) Salary: £60,000 - £82,500 Team: Developer Experience Reporting To: Head of Engineering Closing date: Friday 30th March 2026 This role is based in the UK and requires an existing right to work in the UK. At this time, we are unable to offer visa sponsorship for this role. We are committed to cultivating a diverse, global team and our sponsorship policy is assessed on a role-by-role basis. We encourage you to regularly visit our careers site for updates on future opportunities where we may offer visa sponsorship. Kaluza is at the forefront of the energy revolution, transforming complex energy challenges into streamlined solutions. We empower energy companies to navigate contemporary challenges while driving the transition to a sustainable, electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets, and grids. By merging predictive algorithms with user-centric design, Kaluza ensures clean energy is reliable, affordable, and seamlessly integrated into daily life. With teams across Europe, North America, Asia, and Australia, alongside a joint venture with Mitsubishi Corporation in Japan, we support industry leaders such as OVO, AGL, and ENGIE, as well as innovators like Volvo and Volkswagen. What will I be doing? In this impactful role, you will be instrumental in architecting and enhancing our Internal AI Engineering Platform. You will construct the infrastructure, from Model Context Protocol (MCP) servers to shared workflows, enabling our software teams to accelerate their development while ensuring system reliability and security. Your contributions will significantly influence Kaluza’s efforts to minimize defects, enhance productivity, and establish a benchmark for AI-driven development. AI Tooling Orchestration: Spearhead the trials and implementation of advanced engineering tools, including Claude Code, Kiro, and Opencode, ensuring their seamless integration into the developer workflow. Infrastructure & Connectivity: Design and maintain our MCP (Model Context Protocol) registry, creating a secure and scalable process for approving and deploying new servers and tools. Shared Workflows: Develop and uphold shared services and standards that standardize coding practices and automate repetitive architectural tasks across teams to facilitate AI workflows. Spec-Driven Development: (additional responsibilities to be defined).

Kaluza develops technology to help energy companies respond to changing demands and speed up the move toward a more sustainable, electrified world. The Energy Intelligence Platform combines data, artificial intelligence, and real-time decision-making to support partners such as OVO, AGL, ENGIE, Volvo, and Volkswagen as they navigate the complexities of today’s energy systems. This Software Engineer II role is part of the Flex team in London, following a hybrid work arrangement. The position reports to a Software Engineering Manager. What you will do Design and build scalable features for the Flex platform, connecting energy retailers, grid operators, and consumers. Integrate new technologies, including electric vehicles, to support services like "Charge Anytime." Collaborate with data scientists and backend engineers to address optimization challenges central to the energy transition. Take responsibility for features from initial concept through ongoing improvement, focusing on reliability and maintainability. Write well-tested, high-quality code to support large-scale decarbonization of transport and home energy use. Help foster an engineering culture centered on human-focused design and continuous learning. Compensation Salary: £46,000 - £60,000 Location and work arrangement Location: London, England, United Kingdom (Hybrid) Visa sponsorship Visa sponsorship is not available for this role. Kaluza reviews sponsorship policies on a role-by-role basis. Candidates interested in future opportunities with sponsorship are encouraged to check the careers page for updates.

Join Attio as a Solutions Engineer specializing in both pre-sales and post-sales support for small and medium-sized businesses (SMB). In this role, you'll leverage your technical expertise to engage with customers, understand their needs, and provide tailored solutions that drive success.

Job Title: Future Interest: Analytics Engineer Location: London, Bristol, or Edinburgh (Hybrid working model) Salary: £46,400 - £63,800 Team: Analytics Engineering team Reporting To: Analytics Engineering Manager Note on this Role: Currently, we do not have a specific opening for this position, but due to our rapid growth, we frequently hire for this skill set! By applying here, you will be added to our Priority Talent Pool. When a headcount is approved, our recruiters will review this pool prior to posting the job publicly. Work Authorization: This position requires existing right to work in the UK. Please note, we are unable to offer visa sponsorship for this role at this time. We are dedicated to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. Keep an eye on our careers site for future opportunities that may include visa sponsorship. Kaluza is transforming the energy landscape as the leading Energy Intelligence Platform. Our mission is to simplify energy complexities while facilitating the transition to a clean, electrified future. Our platform coordinates millions of real-time decisions across homes, devices, markets, and grids. By integrating predictive algorithms with user-centric design, Kaluza makes clean energy reliable, affordable, and adaptable to everyday life. With teams spanning Europe, North America, Asia, and Australia, and a joint venture with Mitsubishi Corporation in Japan, we empower top companies like OVO, AGL, and ENGIE, along with innovators such as Volvo and Volkswagen. Key Responsibilities: In the role of Analytics Engineer, you will be crucial in building the foundation for our global reporting capabilities. Your primary focus will be on designing and implementing a high-performance, scalable dimensional model tailored to serve multiple global clients. This position is not just about data migration; it's about expertly translating complex schema designs into production-ready SQL. You will act as a bridge between abstract data architecture and operations, ensuring the integrity and efficiency of our analytics systems.