Senior .NET Engineer

Senior .NET Engineer (Real-time Logtech)

Cargoo

ROLE OVERVIEW: At Cargoo we are building the infrastructure that makes Freight reliable and scalable. Real-time logistics systems, built in .NET. PROBLEM SPACE:  Logistics operations today are still largely:  * manual  * reactive  * fragmented across tools  * incomplete / late data  * conflicting constraints  * real-time decision pressure  * evolving business rules  * legacy + new system coexistence  WE’RE BUILDING A SYSTEM THAT:  * ingests real-time operational data  * supports planning & execution decisions  * adapts to constantly changing constraints  DESIGN PRINCIPLES: * keep things simple before scalable * prefer explicit logic over magic abstractions * optimize for change, not perfection * avoid “framework-driven architecture” * accept that some parts will be ugly — temporarily  TECH STACK: * .NET  * Vue.JS * service-oriented architecture * relational + operational data storage * cloud-based infrastructure  WHAT WE EXPECT FROM ENGINEERS: * Ability to navigate uncertainty and work in ambiguity * Willingness to challenge decisions * Focus on outcomes, not just code * Understanding of trade-offs and complex systems * Preferring ownership over comfort  WHAT YOU WONT FIND HERE:  * over-engineering everything upfront * unnecessary microservices * “clean architecture” for the sake of it * process-heavy development  If this resonates with you – lets talk!  Send us:  * your LinkedIn / GitHub * OR a short message explaining what you’ve built and why it matters

Senior Backend Engineer - .Net

Trainline

About us We are champions of rail, inspired to build a greener, more sustainable future of travel. Trainline enables millions of travellers to find and book the best value tickets across carriers, fares, and journey options through our highly rated mobile app, website, and B2B partner channels.  Great journeys start with Trainline 🚄  Now Europe’s number 1 downloaded rail app, with over 135 million monthly visits and £6.3 billion in annual ticket sales, we collaborate with 270+ rail and coach companies in over 40 countries. We want to create a world where travel is as simple, seamless, eco-friendly and affordable as it should be.  Today, we're a FTSE 250 company driven by our incredible team of over 1,000 Trainliners from 50+ nationalities, based across London, Paris, Barcelona, Milan, Edinburgh and Madrid. With our focus on growth in the UK and Europe, now is the perfect time to join us on this high-speed journey.  Introducing the Backend teams at Trainline👋 The Backend teams at Trainline build the core of Trainline’s world class product. We create the journey search functionality that millions of our customers use on a daily basis, the eCommerce platform that provides a secure and seamless experience and we connect Trainline to over 270 travel operating companies, across 45 countries in Europe and the rest of the world. Each team has a targeted domain focus, ranging between customer accounts and notifications, journey search, bookings, payments, carriers’ integrations, real-time timetable information, and much more.   As a Senior .NET Engineer at Trainline you will...🚄 * Deliver new functionality or features, using the most appropriate tools & techniques * Ensure quality is at the heart of everything you and your team do * Continuously improve the code base * Keep our customer as the number one priority * Actively identify blockers, boulders, time sinks and waste, and actively attempt to remove them * Make significant contribution to technical decisions * Act as a coach and mentor to others in the team * Take full ownership of the development lifecycle from code to production, including deployment and monitoring   Our Tech Stack 🔑 * Languages & Frameworks: C# (.NET 6–10) * Databases: DynamoDB, PostgreSQL * Cloud & Infrastructure: AWS Cloud, Docker, Terraform * CI/CD & DevOps: GitHub Actions * Monitoring & Logging: New Relic, ELK Stack   We'd love to hear from you if you have...🔍 * Experience mentoring less experienced engineers and comfortable pair-programming with colleagues * Hands on experience with C# .NET and the latest features * Experience collaborating with front-end engineers and other disciplines to deliver end-to-end features and cross-functional epics * Experience working with identity and authentication systems (e.g. IdentityServer, OpenID Connect, OAuth2) * Experience designing and maintaining CI/CD pipelines (e.g. GitHub Actions, TeamCity, Spacelift or similar tools) * Experience with cloud platforms (AWS preferred; Azure or GCP also valuable) * Hands-on experience with Infrastructure as Code, particularly Terraform * Strong experience with observability practices (logging, monitoring, alerting) * Familiarity with tools such as New Relic and ELK stack (or equivalents) * Curiosity about AI and emerging tools * Experience supporting production systems and improving reliability * Strong experience building and operating microservices architectures * Experience with event-driven systems and asynchronous messaging patterns * Solid understanding of distributed systems and scalability challenges * Have excellent communication skills More information: Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.  We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!  We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy. Our values represent the things that matter most to us and what we live and breathe everyday, in everything we do:  * 💭 Think Big - We're building the future of rail  * ✔️ Own It - We focus on every customer, partner and journey  * 🤝  Travel Together - We're one team  * ♻️ Do Good - We make a positive impact  We know that having a diverse team makes us better and helps us succeed. And we mean all forms of diversity - gender, ethnicity, sexuality, disability, nationality and diversity of thought. That's why we're committed to creating inclusive places to work, where everyone belongs and differences are valued and celebrated. Interested in finding out more about what it's like to work at Trainline? Why not check us out on LinkedIn, Instagram and Glassdoor!

Senior Software Engineer (.NET)

CreateFuture

Job Description Senior .NET Engineer (AWS / DevOps) Department: Engineering  CreateFuture is an AI-native consulting partner where people do work that matters and are supported to do it well. We work side by side with our clients, challenging what’s not working and helping them to build the future. We work alongside organisations such as PayPal, adidas, NatWest, FanDuel, and Money Saving Expert, building digital products and services that make a difference while always putting people first. Our commitment to craft, quality, and culture has helped us scale to over 600 people in just a few years.   ABOUT THE ROLE AND TEAM: We are seeking an experienced Senior .NET Engineer to join a team responsible for maintaining, modernising, and evolving a portfolio of business-critical applications and services within a complex enterprise environment. This role is focused on pragmatic modernisation rather than large-scale rewrites. The successful candidate will work across a broad technology landscape that includes legacy .NET applications and services alongside modern cloud-based platforms, helping teams improve, simplify, and evolve existing systems while balancing operational risk, business priorities, and long-term sustainability. You will work closely with engineering teams, architects, and senior stakeholders, providing hands-on technical leadership and helping shape practical engineering decisions within a highly regulated environment. This role follows a hybrid working model based in Glasgow and requires individuals who are comfortable building trusted relationships with stakeholders while working within established enterprise delivery frameworks. Key Responsibilities * Design, develop, maintain, and improve applications and services using .NET technologies and AWS cloud platforms. * Work across both legacy and modern technology stacks, supporting the ongoing evolution of existing services. * Analyse existing applications and services to identify opportunities for simplification, rationalisation, and modernisation. * Contribute to cloud platform improvements and AWS engineering initiatives. * Design and implement Infrastructure as Code solutions using Terraform. * Support DevOps practices, automation initiatives, and engineering improvements across the software delivery lifecycle. * Work collaboratively with architects, engineers, and stakeholders to deliver pragmatic technical solutions. * Help teams manage scope effectively, balancing technical improvement with delivery objectives. * Promote best practices in software engineering, maintainability, operational excellence, and long-term supportability. * Support knowledge transfer and documentation activities where domain knowledge may be limited or fragmented. Required Experience * Strong experience as a Senior Software Engineer working within .NET environments. * Experience working across both modern .NET and legacy .NET Framework applications. * Strong AWS cloud experience. * Good understanding of DevOps practices, CI/CD pipelines, and engineering automation. * Experience working within complex enterprise environments. * Strong stakeholder management and communication skills. * Comfortable engaging with senior business and technical stakeholders. * Experience analysing and improving existing systems rather than delivering greenfield-only solutions. * Strong problem-solving skills and a pragmatic approach to engineering decisions. * Ability to work effectively within hybrid delivery teams. What We're Looking For * Pragmatic engineers who can improve systems incrementally rather than seeking wholesale rewrites. * Engineers who understand how to deliver incremental improvements, focusing on the right problems rather than attempting wholesale replacement of existing systems. * Individuals comfortable navigating legacy codebases and building understanding where documentation or domain knowledge may be limited. * T-shaped engineers with strong technical depth alongside architecture awareness and broader business understanding. * Engineers who can balance technical excellence with commercial and delivery realities. * Team players who contribute positively to engineering culture and stakeholder relationships. * Individuals who can establish credibility quickly within a large enterprise environment. Nice to Have * * Experience modernising legacy enterprise applications and services. * Exposure to WCF, WPF, and broader Microsoft technology stacks. * Experience supporting large-scale transformation or platform consolidation initiatives. * Familiarity with AI-assisted development tools such as GitHub Copilot or similar technologies. * Experience working within financial services or other highly regulated environments. WHAT WE’LL OFFER YOU: We trust people to do their best work. That means flexibility over rigid rules, impact over activity, and real investment in your growth both professionally and personally. You’ll be part of a supportive, and friendly culture, surrounded by smart, curious people who care deeply about what they do. We offer flexible working, including hybrid and remote options. Our office hubs are located in Edinburgh, Leeds, Manchester, London and Bulgaria, with occasional travel to client sites or CreateFuture offices when needed. We trust you to manage your time balancing collaboration with client time and focused work. What matters is the impact you have, not how busy you look. OUR HIRING PROCESS We try to keep our hiring process clear, fair and respectful of your time. We aim to get back to everyone who applies and we will be upfront about where you are in the process. It usually looks like this: * Call with our Talent Acquisition Team  * Role specific capability interview  Depending on the role, we might also ask you to do a short presentation, a practical or technical task or have a values focused conversation. We will explain what is involved before anything happens. INCLUSION AT CREATEFUTURE  We believe diverse teams build better workplaces and better products. We want CreateFuture to be a place where people feel able to be themselves and do their best work. If you need any adjustments or support during the application process, just. We will do what we can to help. We look forward to your application!