Product Engineering - Team Lead

TransitionZero

ABOUT THE ROLE We are looking for an experienced Lead Engineer (back-end) to lead the team building and scaling the infrastructure behind Scenario Builder, our electricity grid modelling platform. Scenario Builder is an in-browser platform that currently provides capacity expansion and dispatch modelling through an accessible no-code interface. The vision for Scenario Builder is to expand into power flow modelling to create a fully integrated grid modelling platform with the features and functionality needed to enable users to develop bankable scenarios that support energy investment decisions. You will line-manage a small team of engineers while remaining a highly active individual contributor. You will own the technical shape of engineering work on the back-end team — leading planning, architecture, and code quality. You will work closely with the wider product and engineering team to design, develop, and maintain the back-end services that power our platform. This hybrid role is based out of our London office near Waterloo Station and reports to the Head of Platform. RESPONSIBILITIES BACK-END DEVELOPMENT & ARCHITECTURE * Design, develop, and maintain scalable back-end services and APIs using Python and modern frameworks (FastAPI). * Design and build high-performance API endpoints to handle complex hierarchical data queries and multi-dimensional aggregations for grid modelling computations * Ensure system reliability, performance, and security through best practices in code quality, testing, and monitoring. * Collaborate with front-end engineers to design and implement RESTful APIs that support our web application. * Collaborate with data engineers and domain experts on the evolving core data model INFRASTRUCTURE & DEVOPS * Manage and optimise cloud infrastructure (GCP) to support our computational workloads. * Implement and maintain CI/CD pipelines to enable rapid, reliable deployments. * Monitor system health and performance, proactively identifying and resolving issues. * Implement and maintain infrastructure-as-code TECHNICAL LEADERSHIP & COLLABORATION * Participate and lead in code reviews, architectural discussions, and technical planning sessions. * Own technical planning: break down roadmap items into well-scoped engineering work, lead estimation, and drive architectural decision records (ADRs). * Collaborate with cross-functional teams, including product, data engineering, and modelling, to deliver impactful features. * Set and uphold the team's technical standards — code quality, testing strategy, API design — through direct example and code review. PEOPLE & LINE MANAGEMENT * Line-manage a team of 3–5 engineers: run regular 1:1s, support career development, and provide timely, constructive feedback. * Partner with the Head of Platform on performance reviews and personal development plans. * Act as the first point of escalation for day-to-day technical blockers ABOUT YOU You should have a long-term commitment to advancing the energy transition and be driven to build robust, scalable systems that power our grid modelling platform. Passionate about creating highly performant back-end services, you understand the technical challenges associated with building niche B2B products that handle complex computational workloads. In addition to seeking out people with a proactive, problem-solving attitude and an eye for detail, as a growing organisation, collegiality and empathy for our coworkers are a requisite. While we are a rapidly growing tech startup, we are also a non-profit, so a high level of adaptability and willingness to approach challenges with creativity and curiosity is essential. SKILLS & EXPERIENCE ESSENTIAL * 7+ years of experience in back-end software development, with strong proficiency in Python. * Experience designing and building RESTful APIs and microservices architectures. * Strong understanding of database technologies (PostgreSQL, Redis, Firestore), ORMs and data modelling principles. * Experience with cloud platforms (preferably GCP) and containerisation technologies (Docker). * Solid understanding of software engineering best practices, including testing, code review, and documentation. * Excellent problem-solving skills and ability to work independently on complex technical challenges. * Experience line managing or formally mentoring engineers, with confidence running 1:1s and supporting career development. * Understanding of OAuth and web security best practices. * Experience with AGILE/Scrum based ways-of-working  DESIRABLE * Experience in the energy sector or with computational modelling/simulation software. * Familiarity with scientific computing libraries (NumPy, Pandas) and optimisation frameworks. * Experience with generative AI/LLMs in applied engineering contexts * Experience with infrastructure-as-code tools (Terraform, Terragrunt) and GitOps practices.

Figma

Figma is growing our team of passionate creatives and builders on a mission to make design accessible to all. Figma’s platform helps teams bring ideas to life—whether you're brainstorming, creating a prototype, translating designs into code, or iterating with AI. From idea to product, Figma empowers teams to streamline workflows, move faster, and work together in real time from anywhere in the world. If you're excited to shape the future of design and collaboration, join us! We’re looking for an Engineering Manager to join the Developer Tools team at Figma. This team is building solutions targeting mainly frontend and full stack developers, helping them bring products from idea to production faster than ever. As a manager on the Developer tools team you will lead teams working across Dev Mode, MCP, Code Connect, and more. You’ll also be responsible for helping define the future of our developer offering, very likely helping incubate and lead new product development. Developer tools is a major initiative at Figma and is spearheaded from the London office. You’ll be working on one of the most exciting areas within Figma incorporating design thinking, the latest AI developments, and open source developer tooling. This is a full time role that can be held from our London hub or remotely in the UK. WHAT YOU’LL DO AT FIGMA: * Manage and support a team of product engineers focused on building and expanding Figma’s developer offerings, including Dev Mode, MCP, Code Connect, and more * Partner closely with cross-functional stakeholders to coordinate work across product, design, engineering, and other functions * Define strategy & roadmap for your team and execute on that roadmap with a high degree of autonomy, velocity, and craftsmanship * Provide hands-on technical leadership to your teams and others that collaborate with your teams to ensure a cohesive product experience and the right technical abstractions * Recruit, mentor, and retain high performing engineers (and help with other cross functional roles). You’ll foster a culture of innovation, collaboration and taking calculated risks * Figma is committed to building an inclusive and diverse team and culture. We expect all of our leaders to play a role in helping to build and drive these initiatives through hiring, community events, and other programs in partnership with teams across all of Figma WE'D LOVE TO HEAR FROM YOU IF YOU HAVE: * 2+ years of experience managing software engineers working on products used by external users * A proven track record of building AI-powered products (both as a manager and individual contributor) that are best in class in user experience * Demonstrated ability to tie product and engineering work to clear business impact * Demonstrated leadership skills in building a high-performing and highly engaged engineering team; including mentoring, and growing senior engineers * Strong ability to build and operate fast-moving teams that balance innovation with execution * Genuine curiosity and enthusiasm for emerging AI technologies and their application to user-facing products WHILE NOT REQUIRED, IT’S AN ADDED PLUS IF YOU ALSO HAVE: * Experience building large scale systems using React, C++, and/or Ruby * Experience building & maintaining open source software and/or libraries for developers * Knowledge and experience in generative AI, RAG, the fine-tuning process and its application to creative products At Figma, one of our values is Grow as you go. We believe in hiring smart, curious people who are excited to learn and develop their skills. If you’re excited about this role but your past experience doesn’t align perfectly with the points outlined in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles. At Figma we celebrate and support our differences. We know employing a team rich in diverse thoughts, experiences, and opinions allows our employees, our product and our community to flourish. Figma is an equal opportunity workplace - we are dedicated to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity/expression, veteran status, or any other characteristic protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to accommodations-ext@figma.com. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities.  Examples of accommodations include but are not limited to:  * Holding interviews in an accessible location * Enabling closed captioning on video conferencing * Ensuring all written communication be compatible with screen readers * Changing the mode or format of interviews  To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates keep their cameras on during video interviews. Additionally, if hired you will be required to attend in person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with Figma's Candidate Privacy Notice.

Ledgy

At Ledgy, we’re on a mission to make Europe a powerhouse of entrepreneurship by building a modern, tech-driven equity management and financial reporting platform for private and public companies. In 2026, we aim to be the leading provider for European IPOs and reporting for share-based payments. We are a value-based company with a core focus on being humble, transparent, ambitious and impactful, all in order to delivery the best experience for our customers and end users. We are proud to partner with some of the world’s leading investors. New Enterprise Associates led our $22m Series B round in 2022, with Philip Chopin joining Sequoia’s Luciana Lixandru on our board. We were founded in Switzerland in 2017 and today we operate globally from offices in Zurich and London. We encourage diversity and are an international team coming from 26 different countries and speaking 25 different languages.   About the Role As a hands-on Engineering Manager of one of our feature teams at Ledgy, you'll lead the engineers who build the features that help companies offer, manage, and communicate compensation and savings vehicles: from equity plans to pensions, carry, and beyond. Your team works on the products employees and companies use to make sense of complex compensation structures. This is a good fit if you find it meaningful to work on features that are financially significant to the people using them, as getting compensation right matters. The work is domain-rich: these structures are complex, high-stakes, and varied. You'll report to the Head of Engineering and play a key role in expanding Ledgy's product coverage as companies increasingly look to offer diverse forms of compensation.   You'll Thrive in This Role If You * Have 2+ years in Engineering Management and 6+ years as a Software Engineer, with meaningful time in product-focused or domain-heavy roles * Are energised by features that have a direct, visible impact on end users — the things employees actually see and interact with * Care deeply about correctness in domains where getting things wrong has real financial consequences * Are comfortable with evolving scope — compensation takes many forms, and the product will grow to reflect that * Actively use AI tools to multiply your output and are excited to help your team do the same — you see AI as a core part of how great engineering gets done today * Love developing people and creating an environment where engineers can do their best work * Want to stay hands-on — you're comfortable diving into the codebase, reviewing PRs with concrete feedback, and shipping yourself What You'll Own * Team Leadership: Setting technical direction for the team, running 1:1s and performance conversations, and supporting engineers in their growth. * AI-Augmented Engineering: Modelling and promoting effective use of AI tools across your team — from coding assistants to automated workflows. You'll help engineers develop good instincts for where AI accelerates work and where human judgment matters most. * Compensation & Savings Features: The product surface covering a range of compensation and savings vehicles — equity plans, pensions, carry, and more. Your team builds the logic and UX that makes these products usable for both companies and their employees. * Employee-Facing Experience: Ensuring the features your team builds are not just correct, but clear and accessible to employees navigating complex compensation structures. * Domain Breadth: As Ledgy expands into new compensation types, your team will be at the frontier, building the models and product experiences that bring them to life. Our tech stack: * Language: TypeScript * Frontend: React, Tailwind CSS, tRPC * Backend: tRPC, Node.js, MongoDB, Temporal * Infrastructure: Docker, GitHub Actions, GCP, Terraform Cloud, Kubernetes What Your Journey Could Look Like First 30 Days * Build relationships with your direct reports and develop a solid understanding of the compensation domain, including what we support today and where we're headed * Get hands-on with the codebase — review PRs and understand how the product models compensation and plan logic * Meet PD leadership: CTO, Head of Engineering, Head of Product, and the other EMs * Understand how your team's domain intersects with the rest of the platform First 3 Months * Own the team's delivery rhythm: roadmap reviews, sprint health, and unblocking engineers * Identify and begin addressing the most complex or fragile areas of the domain * Establish regular 1:1s and begin meaningful coaching conversations with your reports * Partner with PM and Design on the roadmap for expanding compensation coverage 6–12 Months * Be recognised as the technical leader for compensation and savings features at Ledgy * Deliver measurable improvements to product quality, coverage, or the employee experience * Lead performance reviews and meaningful career development conversations * Be a trusted partner to product and engineering leadership on compensation strategy The Interview Process 1. Getting to know you (30 min): Meet with someone from our people team to talk about your experience and to answer questions about the role 2. Live Coding (60 min): A problem-solving session (without AI) using your preferred language and IDE 3. System Design (60 min): Walk us through an architecture you've significantly contributed to — we'll explore domain modelling and product complexity based on your experience 4. Mock 1:1 (45 min): A mock coaching conversation with one of our engineers to see how you approach people management and development 5. Culture & Vision (30 min): Meet one of our founders to discuss Ledgy's mission and how you think about making compensation and savings products work for everyone 6. Offer 🎉 Being part of Ledgy means: * Recharge and re-energize with flexible working hours, 25 days of vacation, and up to 40 days of remote work from outside your home country. * We make space for your own professional development, with a generous yearly learning & development budget. * This role will receive a competitive salary + benefits + equity. All salaries are aligned with competitively benchmarked ranges based on work location and levelling. * For candidates based in London or Zurich we use a hybrid work model of 2 days in the office per week.