Senior Software Engineer (Node/TypeScript)
Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on Oct 15, 2026.
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 help build a significant presence in Lithuania. With a reputation for innovation, the company is tackling some of the world’s most pressing problems by creating better energy systems for the planet and for everyone on it.
This is an exciting time to join, as the company is expanding and offers numerous opportunities for professional development. You will be part of a passionate team dedicated to making a tangible difference in the world through cutting-edge technology, all driven by a dynamic and entrepreneurial spirit.
About the team
You will be joining a team that is part of the largest strategic transformation in the companies history, developing greenfield target state technology and innovative solutions for over 4 million customers.
You will be part of an autonomous Product team grouped with several other teams under a common Fintech domain which includes Energy Trading, Payments and Exports. You will be working alongside teammates in Lithuania, while also collaborating with colleagues in the UK.
What You’ll be doing
As a back end engineer you will be helping to build API-first services that form part of a new target architecture. You will have the opportunity to contribute towards the design, built and scaling of customer products and services, collaborating with other Product and Engineering teams.
You'll engage with cutting-edge technologies like TypeScript, PostgreSQL, and MongoDB, and utilize CI/CD pipelines built with Terraform and Kubernetes on GCP. Embracing agile methodologies, working with your team to achieve common objectives.
Requirements
- Backend engineering experience essential.
- Knowledge of TypeScript and Node.
- Experience with cloud-native architectures and technologies, including microservices, containers, Kubernetes, and cloud platforms (AWS or GCP).
- Experience building and operating distributed systems at scale.
- Passion for product and user experience, along with strong commercial thinking.
- A strong desire to make an impact and take ownership early in the process.
- An eye for designing resilient and scalable solutions.
- Attention to detail with a focus on security.
- Familiarity with Test Driven Development (TDD) is beneficial.
- Excellent written and verbal communication in English language.
What You'll Get in Return
- Salary: Starting from €6,500 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 to recharge and unwind.
- 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!