Junior Mechanical Engineer - Summer 2026

About UsAt Mytos, we are on a mission to revolutionize the biotech industry. Join our innovative team, and you'll empower scientists, speed up their research, and play a vital role in delivering cures to patients more rapidly.We have engineered cutting-edge machines that fully automate the production of human cells—once the most labor-intensive process in biotechnology. These cells are pivotal in the discovery and development of new drugs, including treatments for cancer. Mytos is set to transform the landscape of cure development.Our technology is currently utilized by multibillion-dollar biotech companies across both coasts of the United States, and we have successfully raised $19 million to accelerate our market expansion and further enhance our development efforts!Our diverse, world-class team includes former Dyson engineers and scientists published in Nature, collaborating closely to tackle this ambitious challenge. Discover more about your potential Mytos teammates here: TeamMytos is proud to be backed by Y Combinator, the most successful startup accelerator globally, which has fostered companies such as Airbnb, Dropbox, and Ginkgo Bioworks.

About JuniorAt Junior, we are on a mission to revolutionize the investment research landscape with innovative LLM-powered tools designed specifically for private market investors. Our clientele includes some of the world's leading private equity and consulting firms, collectively managing billions in annual investments. As a profitable and bootstrapped enterprise, we have grown our team to 24 talented individuals across our London and NYC offices, and we achieved a remarkable 10x revenue growth in 2025.Discover more about our mission and values here. Role DescriptionAs our first dedicated Backend Engineer focused solely on our internal go-to-market and operations stack, you will play a pivotal role in shaping our technology framework. Your responsibilities will include:Crafting an AI-first tech stack from the ground up, influencing infrastructure decisions and priorities.Rapidly deploying internal tools and receiving immediate feedback from your team members, who will quickly become your strongest advocates!Developing and managing our data warehouse and internal data architecture.Engaging in innovative projects that leverage LLMs, automation, and advanced agent technologies.Cultivating our engineering culture. Sample Set of ProjectsUser Health Reporting + CRM Data Quality: Automate data pipelines to enhance metrics visibility in BI dashboards and ML evaluations, while establishing alert systems for risk signals.User Feedback Integration: Develop a tool that summarizes user feedback calls, prioritizes feature requests, and communicates findings to our Product team.Billing and Invoicing: Implement complex B2B pricing models encompassing usage-based, seat-based, and platform fees, while automating financial reconciliation processes.Data Warehouse Development: Create a data warehouse to integrate product, CRM, and operational data, and generate tailored dashboards for different teams. About YouWe are searching for a backend/data engineer who...

Join AECOM as an Industrial Placement Student in the vibrant cities of London or St Albans during the summer of 2026. This is an exciting opportunity for undergraduate students to gain hands-on experience in a dynamic and innovative environment. As part of our team, you will have the chance to work on impactful projects that shape the future of infrastructure and environmental sustainability.

Join Alpadia Language Schools as a Night Time Supervisor on a fixed-term summer contract for 2026. In this pivotal role, you will oversee the smooth operation of our facilities during nighttime hours, ensuring a safe and welcoming environment for our students. You will be responsible for managing emergencies, supervising staff, and addressing any issues that may arise.

About the Internship Anglo American De Beers Group offers summer internships in engineering at the London office. Interns join project teams and work directly with experienced engineers on real assignments that impact mining operations. What You'll Do Contribute to engineering projects focused on improving operational efficiency and sustainability Work alongside industry professionals and learn from their expertise Collaborate with teams to develop practical solutions for ongoing challenges Location London

Join our innovative team at Ramboll Group as a Senior Mechanical Engineer. In this pivotal role, you will lead the design and implementation of engineering solutions for diverse projects, ensuring compliance with industry standards and optimizing performance. You will collaborate with multidisciplinary teams, mentor junior engineers, and contribute to the continuous improvement of engineering practices.

Join our dynamic team at Egis Group as a Senior Mechanical Engineer, where you will lead innovative engineering projects that shape the future of mechanical systems. You will be responsible for designing, analyzing, and optimizing mechanical components and systems to meet project specifications and safety standards. Your expertise will be crucial in collaborating with multidisciplinary teams to deliver high-quality projects that exceed client expectations.

Key ResponsibilitiesLead the innovative design and development of cutting-edge mechanical systems, products, and components.Perform assessments on strength, stiffness, and fatigue of components, assemblies, and complete systems using both linear static and non-linear analyses.Utilize conceptual analysis and hand calculations to validate engineering designs and evaluate structural performance.Design and develop integrated cooling and heating systems for electric vehicles (EVs) and power electronics.Select and specify appropriate materials and components while creating detailed CAD drawings.Oversee the generation and upkeep of system and component-level Design Failure Mode and Effects Analysis (DFMEA).Conduct feasibility studies and cost-benefit analyses to validate design viability.Identify and troubleshoot design or manufacturing issues with CAD and analysis tools.Understand regulatory standards and define testing protocols to ensure system designs meet durability, reliability, and functionality requirements.Deliver schematics, final designs, and release drawings in accordance with project specifications.Assist in the creation of Request for Quotation (RFQ) and Request for Information (RFI) documents, supporting supplier engagement.Collaborate with suppliers to enhance cost, manufacturability, and quality of engineering designs.Provide expert technical guidance and support to technicians and aid system production.Facilitate the engineering release process from initial concept through to finalized drawings.Lead change management processes, root cause analyses, and implement corrective actions.Manage and develop the Design Verification Plan and Report (DVP&R) schedule.Stay updated with industry standards, regulations, and emerging technologies.

Join Assystem as a Mechanical Configuration Engineer in London, where you will play a crucial role in ensuring the integrity and coherence of mechanical designs throughout the product lifecycle. You will collaborate with multidisciplinary teams to optimize configurations and enhance performance, contributing to innovative engineering solutions.

Arena Investors, LP is a distinguished global investment management firm dedicated to delivering attractive, risk-adjusted returns that are consistent and uncorrelated by utilizing a fundamentals-driven, asset-oriented approach to financing and investing across the entire credit spectrum, particularly in niches where traditional capital sources are limited.Our investment team excels in the origination and acquisition of asset-oriented investments across a diverse range of commercial and consumer asset types. This includes, but is not limited to, private direct corporate lending and commercial real estate bridge financing. Our expertise lies in navigating off-the-run, stressed, distressed, illiquid, and esoteric special situation transactions.Arena is eager to expand its investment team with the addition of a Summer Analyst. In this dynamic role, the selected candidate will provide invaluable support to senior team members. We seek individuals who demonstrate a genuine passion for finance and investing, thrive in a fast-paced, collaborative environment, and possess strong organizational, self-motivation, and resourcefulness skills.

About JuniorAt Junior, we are at the forefront of innovation, creating powerful LLM-driven tools designed to enhance the investment research experience for private market investors. Our esteemed clientele includes several of the world's top 10 private equity and consulting firms, collectively investing billions of dollars each year. As a profitable, bootstrapped company, we have a thriving team of 28 professionals located in both London and New York City. Notably, we achieved a remarkable 10x revenue growth in 2025. Role OverviewJunior has positioned itself as the premier AI platform for consulting and private equity teams at leading firms globally. Following our 10x growth last year, we aim to triple our success this year.1) Development of GTM Systems (Core)Manage the lead → account → opportunity workflow, focusing on stages, fields, and rules.Automate processes related to routing + hygiene (deduplication, enrichment, stage/task updates).Establish consistent cadences for pipeline reviews, next-step follow-ups, and stale/renewal alerts.Ensure Attio serves as the single source of truth for definitions, naming conventions, and required fields.Create targeted and semi-templated content (such as deal-specific one-pagers and demo workspaces).2) RevOps Processes, Automation & ToolingImplement automations across platforms including Claude Co-work, Attio, Slack, email, and calendar.Oversee legal and information security processes, enhanced by cutting-edge AI tools.Maintain straightforward dashboards tracking inbound speed, conversion rates, outbound pipeline, and pilot health.Conduct monthly operational sweeps to resolve issues, simplify processes, and introduce further automation.3) SDR Execution (Targeted)Engage in prospecting and outbound initiatives targeting our ideal customer profile through Clay, LinkedIn, and Superhuman.Continuously refine high-converting messaging and outreach sequences.Schedule and qualify meetings, ensuring clear next steps are logged in Attio.Develop repeatable outbound strategies (including lists, triggers, and collateral).4) Experiments & Growth OperationsConduct 2–4 GTM experiments per month.Analyze results and convert successful strategies into SOPs and playbooks. About You2-4 years of experience in RevOps, Sales Ops, or Growth Ops.Strong analytical skills with a data-driven approach.Proficiency in automation tools and CRM systems.Excellent communication and interpersonal skills.A proactive mindset with a passion for experimentation and growth.

About JuniorAt Junior, we are revolutionizing the investment research landscape with state-of-the-art LLM-powered tools designed specifically for private market investors. Our clientele includes some of the world's leading private equity and consulting firms, collectively managing billions in annual investments. As a profitable and bootstrapped organization, we take pride in our dynamic team of 24 based in both London and NYC.Discover more about our mission and values here. Role DescriptionAs a pivotal member of our Customer Success team, you will play a crucial role in ensuring our clients' success. We seek individuals who possess genuine empathy for the challenges faced by consultants and investors during due diligence work, and who can effectively demonstrate how Junior can enhance their efficiency and impact.Your responsibilities will include managing global deployments involving thousands of users, acting as the Voice of the Customer, and collaborating closely with our product team to eliminate pain points from our customers' workflows.In this role, you will:Develop and maintain robust relationships with clients, including key decision-makers at large-cap funds and consultancies, serving as their primary contact and trusted advisor throughout the onboarding and feedback processes.Oversee the execution of large-scale AI deployments for thousands of users.Transform customer feedback into actionable insights for product development, guiding our team on essential features to meet client demands.Co-create and deliver tailored training programs alongside our customers.Utilize data-driven strategies to enhance customer engagement, satisfaction, and retention.Advance into a managerial position as our Customer Success team expands.Contribute to the evolution of our team structure and the overall company culture. About YouWe are in search of a seasoned Customer Success Lead who:Has demonstrable experience in customer success roles, especially within the investment or consulting sectors.Is skilled in relationship management, with a track record of engaging effectively with senior stakeholders.Possesses strong analytical skills and the ability to leverage data for customer insights.Can effectively communicate and translate customer needs into product enhancements.Is passionate about driving user satisfaction and retention.

About JuniorAt Junior, we are at the forefront of innovation, developing advanced LLM-powered workflow tools designed to enhance investment research for private market investors. Our esteemed clientele includes the majority of the top 10 global private equity and consulting firms, and we currently facilitate the investment of hundreds of billions of dollars annually. As a profitable and bootstrapped company, we are proud to have a dynamic team of over 30 professionals based in London, New York City, and Sydney, achieving a remarkable 10x revenue growth in 2025.Explore more about our mission and values here. Role OverviewWe are searching for our inaugural Product Marketing Lead to define our positioning, messaging, and marketing strategies for Junior, targeting the world's most discerning enterprise software buyers. You will act as a vital link connecting our state-of-the-art AI product with decision-makers at prestigious consulting firms and private equity funds.In this pioneering role, you will have the chance to:Lead product launches and messaging for feature releases: Ensure new features are effectively communicated to the right audience, helping users maximize their value from Junior.Develop our content strategy: Create engaging case studies, thought leadership articles, and sales enablement resources that demonstrate tangible ROI.Shape our go-to-market strategy: Develop impactful messaging that stands out in the crowded AI landscape and resonates with sophisticated buyers by deeply understanding customer segments, market dynamics, and decision-making personas. About YouWe are looking for a strategic product marketer who possesses:5+ years of B2B product marketing experience, ideally within enterprise software, AI/ML platforms, or technology services.A deep understanding of complex sales cycles, with experience engaging sophisticated buyers who navigate 3-9 month decision-making processes involving multiple stakeholders.Fluency in AI/LLM products, with the ability to articulate the technological shifts we are experiencing and create compelling messaging around customer use cases.A tinkerer’s mindset: Experimentation with LLMs and AI tools, showcasing several examples of processes developed or improved through generative AI.

About OLIXAt OLIX, we are at the forefront of the AI revolution, addressing the rapidly growing demand for advanced infrastructure in a world where traditional hardware is no longer sufficient. Our innovative Optical Tensor Processing Unit (OTPU) is set to redefine performance and energy efficiency, paving the way for the next generation of technology that will drive the economy for the next century.Role OverviewJoin our team as a Senior Mechanical Engineer, where you will play a pivotal role in designing cutting-edge hardware that harnesses the power of light. You will be responsible for the mechanical architecture of photonic subassemblies, ensuring precision and reliability in our advanced optical interconnect assemblies.Key ResponsibilitiesDesign and develop opto-mechanical assemblies such as waveguide coupling structures and precision alignment fixtures.Conduct tolerance chain analysis to maintain optical alignment budgets, considering thermal variations and long-term stability.Select and evaluate optical-grade materials, ensuring compatibility with thermal and manufacturing processes.Lead the thermal-mechanical co-design for photonic subassemblies, focusing on heatsink designs for high-performance components.Create and maintain GD&T drawings and engineering specifications for optical-grade components.Collaborate closely with optical, process, and reliability engineers to achieve optimal mechanical and optical outcomes.

Join our vibrant team as a Lifeguard & Activity Leader for the summer of 2026! As part of Alpadia Language Schools, you will play a crucial role in ensuring the safety and enjoyment of our students during their summer activities. This is an exciting opportunity to work in a dynamic environment, helping students learn and grow while participating in various recreational activities.

Hypersonica develops advanced defence technology across Europe, with a focus on speed, resilience, and strengthening technological independence. The company values technical excellence and seeks people who approach complex problems with creativity and urgency. Role overview This Junior Systems Engineer position is based in London and sits within a close-knit, skilled team. The role involves hands-on work on projects that influence the future of defence technology. Junior engineers here contribute directly to Hypersonica’s mission and ongoing growth. What makes this role unique Collaborate with experienced professionals in an environment where each team member’s work matters Tackle meaningful challenges and help develop quick, effective solutions Shape the position over time by drawing on your own strengths and interests Support projects that advance Europe’s technological autonomy Who succeeds at Hypersonica People with strong technical abilities and sound judgment Those who thrive both independently and within a team Candidates who have achieved results that others considered unlikely, or who bring a unique mix of skills Individuals ready to take on evolving responsibilities as their contributions grow Applicants with unconventional backgrounds or skills are encouraged to apply, especially if they have a record of delivering results in demanding situations.

Join us as a Software Engineer at Wehrtyou, where the code you develop is pivotal to our business operations. Our engineering team is tasked with creating and maintaining vital technology and infrastructure that underpins our trading success. In this dynamic role, you will collaborate closely with fellow engineers who design trading algorithms and oversee trading activities in an incredibly fast-paced, real-time environment. We seek innovative programmers who are passionate about coding, enjoy tackling challenges, and thrive in a collaborative and open company culture.ProfileIn your leisure time, you engage in coding, tinkering, reading, exploring, and possess an unwavering curiosity about computer technology — you’ll find camaraderie with like-minded individuals here.You are adept at working both independently and as part of a team, with a demonstrated ability to quickly analyze and resolve problems.You can dissect code, understand its functionality, and propose enhancements.You can articulate software designs at various levels—from high-level abstractions to detailed algorithms.You enjoy collaborating with colleagues who inspire you to improve and excel in your craft.

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.

Maven Securities Holding Ltd is offering a summer internship in London for 2026. This program places interns alongside experienced professionals, giving a close-up view of the finance and investment sector. What you will do Work on projects designed to strengthen analytical skills Collaborate with team members and learn from industry experts Gain exposure to real-world finance and investment practices Professional development The internship includes opportunities to build connections within the industry. Interns participate in activities that encourage networking and learning from others in the field. Location This internship takes place in London.

Join our dynamic team at Ramboll Group as a Mechanical Associate in Healthcare Engineering. In this pivotal role, you will contribute to innovative projects that enhance healthcare infrastructure and improve patient outcomes. This position is ideal for a dedicated professional eager to develop their skills in a collaborative and forward-thinking environment.