Senior Power Systems Engineer at ionate | London

£65,000 - £80,000 / Hybrid - London Join IONATE, a pioneering deep technology scale-up dedicated to transforming the future of smart grids. We are on the lookout for a Senior Power Systems Engineer who will take a leading role in power system modeling, overseeing projects from initial concept to successful commercial deployment.Your primary focus will be on power systems development, conducting high-resolution data analysis, and grid modeling. You will be instrumental in conducting design reviews and engaging in technical discussions, bringing an analytical engineering approach that merges innovative ideas with robust technical reasoning to tackle intricate challenges.Additionally, you will be a key player in supporting business development, project execution, and testing activities, ensuring all tasks are completed on time and within budget. Key Responsibilities:Develop and sustain high-fidelity power system models for grid analysis and product development.Execute power system simulations and EMT simulations encompassing load flow, short-circuit and fault analysis, transient stability, fault-ride through, and harmonic propagation studies.Perform detailed data analysis to assess network behavior, power quality, dynamic performance, and overall system reliability.Lead technical design reviews and provide engineering support across interdisciplinary teams.Assist in defining IONATE’s product architecture and integrating our solutions into electrical networks, ensuring adherence to relevant grid codes and regulatory standards.Work closely with hardware, software, transformer, and control engineers to validate system-level performance from simulations to field deployment.Offer technical insights for business development initiatives, including feasibility studies, technical proposals, and customer interactions.Create structured technical documentation detailing methodologies, assumptions, analyses, and results to support internal governance and external certification processes.

ionate is hiring a Principal Power Electronics Engineer in London. This senior position centers on creating and refining advanced power electronics solutions to boost energy efficiency and system performance. The work plays a direct role in supporting client projects as the energy sector evolves. Role overview The Principal Power Electronics Engineer will design and develop solutions for complex power systems. The position requires deep technical knowledge and the ability to address client requirements in a rapidly changing industry. Key focus areas Designing advanced power electronics systems Improving energy efficiency and overall system performance Supporting client needs within the energy sector Requirements Extensive experience in power electronics engineering Strong understanding of power systems Ability to develop solutions for evolving client and industry needs

Statkraft is looking for a Senior Power Systems Engineer to join the London office. This position centers on creating solutions that address shifts in the energy sector. Role focus The Senior Power Systems Engineer will work on challenges related to the evolving energy landscape. The work involves applying deep knowledge of power systems to develop practical responses to industry changes. What you bring Expertise in power systems engineering Strong interest in shaping the future of energy systems

Join Alten as a Senior Power Systems Engineer and be part of an innovative team dedicated to delivering cutting-edge solutions in the energy sector. In this role, you will leverage your expertise in power systems to design and implement complex engineering projects, ensuring efficiency and effectiveness in energy management.

Join ionate as a Mechanical Design Engineer where you will play a crucial role in creating innovative mechanical designs that meet our clients' needs. In this position, you will collaborate with cross-functional teams to develop cutting-edge solutions, ensuring functionality and feasibility throughout the design process.

Join our dynamic engineering team at Hypersonica Productions Ltd. as a Senior Systems Engineer. In this pivotal role, you will lead the design and implementation of innovative systems that drive our cutting-edge projects. Collaborate with a talented group of engineers to enhance our systems architecture, ensuring optimal performance and reliability.Your expertise will contribute to the development of scalable solutions while mentoring junior engineers and fostering a culture of continuous improvement. If you are looking for a challenging opportunity to make a significant impact in a forward-thinking company, we want to hear from you!

Join Longshot Systems Ltd, where we create cutting-edge platforms for sports betting, analytics, and trading. We are seeking a Senior DevOps Engineer to enhance our platform team.You will manage a medium-sized deployment that connects with global sports betting platforms and supports multiple internal teams with diverse infrastructure needs. Your role will involve overseeing critical systems from backtesting to real-time trading and long-running backend services.Our infrastructure is hosted on AWS, and we are undergoing an evolution focused on automation and repeatability to drive our growth. Our core systems process thousands of trading signals per second, requiring minimal latency, presenting similar challenges to high-frequency trading environments but in the sports betting sector.As a Senior DevOps Engineer, you will collaborate closely with the CTO and development team to maintain our production and development trading infrastructure. You will take the lead on developing new infrastructure and troubleshooting performance and stability issues across applications, networks, and operating systems. You should be adept at analyzing metrics, packet dumps, and logs to identify and resolve issues, followed by implementing automation to prevent future occurrences.The ideal candidate is autonomous and innovative, thriving on generating new solutions and suggesting improvements to current methodologies. We offer you flexibility and the freedom to explore effective solutions.We embrace a hybrid work model, requiring in-office attendance on Thursdays at our London (Farringdon) office, with flexible arrangements for the remainder of the week. Our standard working hours are 10 AM to 6 PM UK time, Monday to Friday, with support for flexible schedules to achieve your goals.Regarding on-call responsibilities, while we do not maintain a 24/7 rota, we have a compensated on-call system based on best efforts, which will involve sharing responsibilities within the platform team.Interview Process:Introductory call (30 mins) – discuss your background and interests.First technical interview (30 mins) – live systems management and code review.Second technical interview (60 mins) – in-depth technical questions.Full assessment day (10:30 AM – 5 PM) – a practical systems engineering exercise reflecting actual team work. Meet the team, tour the office, and enjoy a complimentary lunch.

Join Longshot Systems, a pioneering company dedicated to developing cutting-edge platforms for sports betting analytics and trading.We are in search of a Senior Software Engineer to become a vital member of our trading platform team. As a small but highly focused organization, we seek an individual who can effectively architect and implement solutions to achieve our upcoming product, performance, and stability objectives. This role involves ownership of our technical standards, coding guidelines, CI/CD processes, observability, and security measures. If you are passionate about delivering features and enhancing the overall technical excellence of our team and platform, we want to hear from you.Our trading platform is responsible for integrating with numerous bookmakers and exchanges globally, normalizing and consolidating global odds data across various sports for internal trading strategies. We manage thousands of odds updates and trades per second, maintaining stringent standards for latency, correctness, and feed quality. You will be at the forefront, integrating additional trading venues, optimizing key platform components, and enhancing the safety and speed of trading. Our team also oversees a large historical data repository, supporting the company's broader trading and research initiatives.Our key platform systems are primarily built using Golang, featuring message buses and databases at the core of our architecture. While fluency in Golang is advantageous, it's not a prerequisite, as we have a team full of experts ready to assist you in learning.We embrace a hybrid work model, with Thursdays in our London office (Farringdon) and flexible arrangements for the rest of the week. Our standard working hours are 10 AM to 6 PM UK time, Monday through Friday, with support for flexible schedules to help our team achieve their objectives.

Join Alten as a Senior Systems Engineer and be part of a leading technology consultancy that specializes in engineering and IT services. In this critical role, you will drive innovative solutions and enhance system performance across various projects.

About Gigs Gigs builds a platform that lets technology companies add global mobile connectivity to their products. The goal: make it as easy to offer mobile services as it is to set up payments. Gigs removes telecom complexity for customers ranging from fintech startups launching mobile plans to HR platforms managing work phones. The team includes about 100 people working across the US and Europe, backed by nearly $100 million from investors like Ribbit Capital, Google, and Y Combinator. Gigs brings together engineers, product specialists, and business leaders with backgrounds at Stripe, Airbnb, Shopify, and other top tech companies. The company is growing quickly and tackling both technical and regulatory challenges to make connectivity seamless. Core Values Speed: Work with urgency and treat each week as important for progress. Ownership: Take initiative when problems arise and act with autonomy. Customer Obsession: Focus on customer success as a measure of company success. Ambiguity: Use good judgment and instincts to make decisions, even with incomplete information. First Principles: Question established practices and seek to understand the reasons behind them. Role Overview: Senior IT Systems Engineer The Senior IT Systems Engineer will help ensure that everyone at Gigs has the access, tools, and support needed to work efficiently. This position focuses on building and automating corporate IT infrastructure. The role is hands-on and results-driven, joining as the third member of the Security & IT team. Locations London, Amsterdam, Berlin

Are you ready to embrace an exciting new opportunity as a System Engineer? At DeepHealth, we are seeking a dedicated professional who is eager to take charge of the design, maintenance, and optimization of our cutting-edge IT systems and infrastructure. Your role will be crucial in ensuring the reliability, security, and scalability of the environments that support our global operations. If you are passionate about driving continuous improvement, enhancing processes, and collaborating with diverse teams to deliver high-performing and compliant systems, we want to hear from you!

Your Role:Join our dynamic Electrification & Power team as a Senior Rail Traction Power and Substation Engineer, where you will play a vital role in the successful delivery of rail projects that meet client expectations and industry standards.In this position, you will ensure accuracy in design and calculations, maintaining cost-effectiveness and compliance with all relevant codes and standards. As part of a growing team, your contributions will span the entire project lifecycle, from feasibility studies to detailed design and construction support. You will also have the opportunity to engage with international projects.Key Responsibilities:Oversee technical delivery across key projects, operating at an Independent Checker level.Mentor and support the development of engineers within the team.Provide Expertise:Take charge of the technical oversight and delivery of design packages at various project stages, contributing to the growth of traction power and substation capabilities.Collaborate:Work closely with project managers to coordinate technical delivery, providing guidance to designers and junior engineers, and liaising with clients and stakeholders as necessary.Ensure Quality:Develop comprehensive design documentation, including calculations, reports, and specifications. Conduct independent technical checks to ensure compliance with standards and project requirements.Anticipate:Perform site visits and surveys to inform design development. Review and develop project specifications for construction and provide design support during the construction phase, ensuring alignment with design intent. A solid understanding of Health & Safety and CDM requirements is essential.

About SequenceJoin Sequence and play a pivotal role in creating a transformative platform that empowers businesses to streamline their payment processes. Already processing over $1 billion in annual invoice volume, we're on a remarkable growth trajectory.Our cutting-edge, AI-powered revenue platform is designed specifically for modern finance teams, replacing outdated spreadsheets and clunky legacy systems with intuitive software that enhances productivity.Trusted by Cognition, incident.io, MoonPay, and more than 100 high-growth companies, we manage their entire revenue cycle—from quoting and billing to revenue recognition.Founded by experienced entrepreneurs, we achieved a remarkable 10x growth in ARR last year and recently secured a $20 million Series A led by 645 Ventures, with participation from a16z and esteemed founders and CFOs from notable companies like Decagon, Klaviyo, and Wise.What is it like to work at Sequence?At Sequence, you'll be part of a small team with significant opportunities for impact and ownership. You will engage in meaningful work, connect directly with customers, and grow with the company.If you're ready to do the best work of your career at a rapidly scaling company, we would be thrilled to meet you.The RoleWe are seeking skilled software engineers with robust backend and cloud infrastructure experience to develop and enhance the systems that drive billing for contemporary B2B companies.You will take ownership of infrastructure critical to our revenue stream, where precision is paramount and downtime is not an option. Our usage events platform processes each merchant action that influences customer billing, making it one of our most vital systems. You will contribute to the evolution of this platform to accommodate exponential growth while ensuring impeccable accuracy.This is a unique opportunity to join at an early stage where you can make significant architectural decisions while having real customers relying on your work. You'll design systems that manage high-velocity event streams, make technical choices that optimize cost and performance at scale, and establish infrastructure that prioritizes reliability.What You'll Do:Own critical event infrastructure. You'll develop systems that process customer usage data essential for billing and invoicing, designing event streaming pipelines that manage high throughput with minimal latency, and building robust systems where data accuracy is non-negotiable and uptime is measured in nines.

Why Join the Technology Team at loveholidays?At loveholidays, we are united in our quest to revolutionize travel. Our goal is to provide customers with unmatched choices, effortless planning, and exceptional value for their next holiday. Our passionate team acts as personal holiday advisors, ensuring every getaway is seamless and enjoyable.Our technology framework is at the heart of our ambition to lead the global packaged holiday market. We are committed to driving innovation and ensuring technical excellence to safeguard our future. Our systems handle a vast number of holiday offers daily, deploying over a thousand times each month and managing thousands of requests every second. Here, you will have the opportunity to accelerate your professional development by tackling complex challenges and expanding your expertise.Join us as we shape the future and take ownership of your success while working towards shared objectives. We actively engage in discussions about technology and adhere to our core technology principles that have guided our growth. With ambitious plans for expansion across Europe, we are on the lookout for the brightest minds and the latest technologies to help us succeed.About Our Team:Our dedicated technical team currently consists of five members, including the Senior Business IT Manager, two Senior System Administrators, and a System Administrator. As the third Senior System Administrator, you will play a pivotal role in providing support to our 400 staff at our Hammersmith headquarters, while also offering assistance to our Dusseldorf office and our two outsourced call centers in India and South Africa.Your Impact:In the role of Senior System Administrator, reporting to the Senior Business IT Manager, you will oversee the strategic and operational support essential for the seamless functioning of our IT systems across all regions. You will serve as a critical escalation point for both internal teams and external partners.Your Daily Responsibilities:Administer and support a large, multi-platform environment including Google Workspace and more.

Your Role:Join our dynamic Electrification & Power team as a Principal Rail Traction Power and Substation Engineer. You will play a pivotal role in delivering complex rail projects that meet client expectations and adhere to high standards. Your expertise will ensure that designs are technically sound, cost-effective, and compliant with relevant codes and regulations.As part of a growing team, you will work on traction power and substation projects across the UK, with opportunities to engage in international assignments. Our projects encompass the entire lifecycle, from feasibility studies to detailed design and construction support.Your Responsibilities:Act as the Discipline Lead / Contractor’s Responsible Engineer (CRE) for key projects, ensuring the technical and commercial delivery of traction power and high voltage substation systems. You will lead the development of intricate design packages, providing technical expertise and fostering the continuous growth of the Electrification & Power team.You will collaborate closely with Project Managers and multidisciplinary teams to guarantee coordinated and effective delivery. Additionally, you will oversee the work of engineers and designers, providing mentorship and technical leadership while engaging directly with clients and stakeholders.To maintain the highest quality, you will develop and approve design documentation, conduct final technical reviews, and ensure compliance with project requirements and industry standards. You will also conduct site visits, offer design support during construction, and contribute to bid preparation by providing technical insights.

Join Mustard Systems, where we harness the power of statistical modeling to analyze sports events, enabling accurate predictions of future outcomes. By leveraging our proprietary datasets, sophisticated statistical models, and custom software solutions, we aim to deliver precise forecasts in the world of sports.We prioritize speed and real-world impact over perfection in code. If you are an engineer who excels at rapid problem-solving and thrives in a flexible, outcome-oriented environment, you'll find a home with us.Your Role:Enhance our connections to new liquidity providers using advanced web scraping and reverse engineering techniques.Create and maintain low-latency, real-time data feeds to support trading strategies based on extracted data.Improve system visibility for teams to gain insights into integration challenges and enhancements.Our agile methodology allows us to adapt plans as new information and opportunities arise. Developers play a pivotal role, taking complete ownership of their software from design through development, testing, review, and production support.Key Responsibilities:Design and Implement Impactful Features: Develop features that align with our business objectives, ensuring high-quality code that delivers measurable value.Collaborate on Code Quality: Review and test peer code to uphold functionality, maintainability, performance, and quality standards.Production Support: Take charge of your team’s software in production, ensuring stability and prompt resolution of any issues.Cross-Team Collaboration: Partner with other development teams on cross-functional projects, working alongside traders and quants to devise the best solutions to real business challenges.Participate in Out-of-Hours Support for our Software Systems.Core Technology Stack:Languages: Python (3.10+), JavaScript/TypeScript for frontend tasks, and Go for select infrastructure.Tools: RabbitMQ and Kafka for messaging, PostgreSQL and Redis for data storage.Environment: Linux servers.Observability: OpenTelemetry, Prometheus, Grafana, and Zabbix.Required Qualifications:Solid experience in software development, particularly with Python.A degree in Computer Science or a related quantitative field from a recognized university.Excellent communication skills, enabling you to explain complex technical concepts to both technical and non-technical audiences.Strong decision-making skills, with an ability to make informed trade-offs in implementation and architectural decisions, balancing innovation with practicality.Experience with web scraping and related technologies is essential.

Corgi is an insurance carrier designed for tech startups, using AI to make underwriting and operations more efficient. With $108 million in funding and full licensing, Corgi is expanding into the UK and EU. The core platform runs on Django and uses Stripe for payments, blending strong engineering with insurance expertise. Role overview This Senior Backend Engineer role is based in London. The position centers on building and deploying products, often independently and without a fixed roadmap. Engineers who have shipped live projects, whether through side work, weekend builds, or prior roles, are especially valued. Key responsibilities Independently design, build, and launch backend systems and features. Turn ideas into production-ready products within tight timelines. Work with a Django-based stack, integrating Stripe and AI-driven workflows. Adapt to new technical challenges as the company grows. What Corgi looks for Proven ability to build and ship impactful projects independently. Comfort working at a startup pace, delivering results in hours or days. Ability to work across the stack and solve a range of technical problems. Strong opinions paired with openness to feedback and new ideas. Focus on outcomes and results rather than titles or hierarchy. High energy, collaborative spirit, and humility. How work happens at Corgi Quick decision-making, prioritizing action over waiting for perfect solutions. Products and improvements ship regularly, not just on a set schedule. Iterative development is preferred over long review cycles. Momentum is maintained even outside of major launches. Transparency is standard; decisions are made openly. Internal competition is encouraged to raise standards for everyone. This is a hands-on position for engineers who want to build and make an impact. Behaviors that lead to removal Office politics, blame-shifting, or gossip. Taking feedback personally rather than constructively. Introducing unnecessary bureaucracy. Missing deadlines after making commitments. How to apply Send links to your GitHub, personal website, or live projects you have shipped. CVs are not required. Email applications to: sergio@corgi.com Evidence of shipped work is required. Location and compensation London-based role, with on-site or hybrid options. Salary range: £75,000 to £140,000, plus equity. Salary depends on demonstrated ability to ship, not job title.

Join Our Innovative Team as a Senior AI Engineer (Agentic Systems)At StarCompliance, we are at the forefront of creating software solutions that address critical compliance needs for our global clientele. As we integrate AI as a fundamental capability throughout our software development lifecycle, we invite you to be part of this transformative journey.We are looking for a Senior AI Engineer to spearhead the practical implementation and expansion of AI-assisted and agentic engineering within our teams. This is a hands-on role where you will engage directly with real codebases, leveraging cutting-edge AI-native development environments (Cursor preferred) to revolutionize the software development process.Your mission will be to evolve AI from a mere tool into a fully embedded system that is repeatable and scalable. You will craft and execute playbooks, establish workflows, and define patterns that allow our teams to harness the power of parallel AI agents, facilitate autonomous code reviews, and create AI-driven delivery pipelines. Additionally, you will play a pivotal role in launching new initiatives, ensuring they are built on the right architecture and AI-enabled engineering practices from the outset.This position is part of our R&D Engineering team and collaborates closely with Platform, QA, and Product Engineering. Here, influence is gained through tangible delivery rather than hierarchy.Our Vision of AIWe view AI not just as an assistant, but as an integral component of our engineering ecosystem. We expect engineers in this role to embrace this perspective and drive our AI initiatives forward.

Tipalti Solutions seeks a Senior ERP Systems Software Engineer based in London. This role centers on designing and building ERP solutions that align with both customer needs and company objectives. Collaboration across departments is key, as the position involves working closely with other teams to refine and expand the ERP software. Main responsibilities Lead the architecture and development of ERP systems Work with cross-functional groups to enhance software features Drive updates and improvements to existing ERP products Use deep ERP knowledge to address complex technical issues Requirements Significant experience working with ERP systems Strong foundation in software engineering and solution design Proven ability to collaborate with multiple teams Focus on delivering dependable, high-quality solutions

Wehrtyou is excited to announce an opening for a Trading Systems Engineer within our vibrant Systems team. This team is instrumental in developing and managing the high-speed, dependable infrastructure that drives our global trading operations. As part of our team, you'll play a crucial role in deploying and overseeing all servers in our trading environment, ensuring exceptional performance and reliability. In this role, you'll encounter a range of technical challenges that have a significant impact on our live trading and research operations. Daily tasks will include installing and configuring hardware and software, remote administration, monitoring system performance, testing new technologies, and optimizing system efficiency. We're looking for a passionate and innovative technologist eager to learn and contribute to meaningful projects in a fast-paced and collaborative setting. If you're enthusiastic about working on cutting-edge systems vital to our success, we encourage you to apply!