Architus specialises in connecting leading UK and US businesses with top EU engineering talent, helping build high-performing technology teams and establish presence overseas. With offices in London, Vilnius and Kaunas, Architus has a strong track-record and impressive list of clients such as Invesco, Tide, Capital Group, Schroders, BNP Paribas, and HSBC. The Opportunity Architus is partnering with a leading UK energy company to establish and expand its technology presence in Lithuania. Known for its innovative approach, the company is transforming the energy sector by building smarter, more sustainable systems that deliver meaningful impact for millions of customers. This is an exciting opportunity to join during a period of significant growth and transformation. As a Lead Software Engineer, you will play a pivotal role in shaping the technical direction of products and platforms that serve more than 4 million customers, working with modern technologies in a collaborative, product-led environment. About the Team The team is at the forefront of one of the largest technology transformations in the company's history, developing greenfield platforms and next-generation services from the ground up. Operating within the Fintech domain, the team delivers solutions across areas including Payments, Energy Trading, and Exports, while collaborating closely with colleagues across Lithuania and the UK. What You'll Be Doing As a Lead Software Engineer, you will provide technical leadership in the design, development, and evolution of API-first services that form part of the company's target architecture. You will champion engineering excellence, influence architectural decisions, and help establish best practices for building scalable, resilient, and secure systems. Working closely with Product Managers, Engineers, and Architects, you will remain hands-on in software development while providing technical direction across products and platforms. You will work with technologies including TypeScript, Node.js, PostgreSQL, and MongoDB, leveraging cloud-native infrastructure on AWS, Kubernetes, Terraform, and modern CI/CD practices to deliver high-quality solutions at scale. Requirements Extensive experience in backend software engineering, with a strong focus on distributed systems and API-driven architectures. Strong expertise in TypeScript and Node.js. Proven experience leading technical design initiatives and making architectural decisions within complex software environments. Experience designing, building, and operating scalable, resilient, and secure cloud-native applications. Strong knowledge of PostgreSQL, MongoDB, and data modelling best practices. Hands-on experience with AWS and modern cloud-native services. Experience with Kubernetes, Terraform, Infrastructure as Code (IaC), and CI/CD pipelines. Strong understanding of software engineering best practices, including testing, observability, reliability, and operational excellence. Experience working within Agile product teams. A commercial mindset and passion for delivering exceptional customer outcomes. Strong communication and stakeholder management skills, with the ability to collaborate effectively across distributed teams. Excellent written and verbal communication skills in English. Nice to Have Experience with event-driven architectures and messaging technologies. Familiarity with Test-Driven Development (TDD). Experience supporting large-scale, customer-facing platforms. Previous experience working within regulated industries such as Energy or Fintech. What You'll Get in Return Salary: Starting from €8,000 gross/month , depending on your experience (full-time only). Career Growth: Accelerate your professional journey by working with cutting-edge technologies in a truly global environment. Holidays: Enjoy extra vacation days. Workation: Work from anywhere in the world for up to 90 days per year. Flexibility: Benefit from hybrid working options for a healthy work-life balance. Workplace: A modern, pet-friendly office equipped with parking and plenty of snacks to keep you fueled and productive. High-Spec Hardware: Brand-new, high-performance equipment provided to support your work from day one. Team Environment: A dynamic, collaborative, and friendly working atmosphere. Perks: Enjoy additional health insurance, plan for the future with 3rd-pillar pension benefits, and perform at your best with high-spec hardware. Ready to Join Us? If you’re excited about this opportunity and believe you’re the right fit, we’d love to hear from you! Apply now and let’s create something amazing together. We look forward to meeting the next Architus star!