Senior DevOps Engineer

Railsr; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A fintech company is seeking a Senior DevOps Engineer to enhance their AWS platform and support engineering teams. The ideal candidate will have over 5 years of experience with AWS services, Terraform, and CI/CD pipeline management. This role requires strong problem-solving skills and a commitment to security and reliability. You will work in a hybrid environment and contribute to the development of innovative financial solutions, playing a key role in the company's growth and success.

Benefits

Competitive remuneration package

Generous benefits

Potential equity rewards

Flexible work environment

Qualifications

• 5+ years working with AWS services ideally including Lambda, Fargate, Aurora.
• Hands-on experience with Terraform or Serverless Framework.
• Experience with GitHub Actions and building CI/CD pipelines.

Responsibilities

• Operate and troubleshoot production systems in AWS.
• Maintain and improve CI/CD pipelines.
• Implement security best practices.
• Automate repetitive tasks and maintain runbooks.

Skills

AWS services

Terraform

GitHub Actions

Docker

Monitoring tools

Networking basics

Job description

Senior DevOps Engineer

In May 2025 Equals Money and Railsr two established fintech innovators with complementary strengths came together. This strategic merger unites Equals proven expertise in currency and payments with Railsrs powerful embedded finance and card-issuing technology. Together weve created a next-generation financial services platform with the scale infrastructure and agility to serve customers across industries and borders.

Backed by regulated infrastructure and advanced payments technology were delivering seamless scalable solutions with the personal service and trusted experience our customers rely on

The Opportunity

Were looking for a senior-level DevOps Engineer to join and existing team who will be hands-on running and improving our AWS platform supporting engineering teams and helping make our systems more secure and reliable. Youll work primarily with Lambda Fargate Aurora VPC and Security Hub maintain IaC (Terraform Serverless) and support CI / CD (GitHub Actions CodeBuild / CodeDeploy). This is a practical collaborative role youll be solving day-to-day operational problems while helping plan and deliver longer-term improvements.

Your Responsibilities

• Operate and troubleshoot production and staging systems in AWS (Lambda Fargate Aurora VPC).
• Maintain and improve CI / CD pipelines using GitHub Actions and AWS CodeBuild / CodeDeploy.
• Author and update Terraform and Serverless configs; review pull requests for infrastructure changes.
• Respond to incidents follow runbooks participate in root-cause analysis and implement fixes.
• Work with engineers to onboard services to the platform and provide practical guidance on deployments observability and cost.
• Implement security best practices : IAM hygiene Security Hub findings secrets management and least-privilege changes.
• Build and tune monitoring alerts logging and tracing to reduce noise and catch real issues early.
• Automate repetitive tasks (backups health checks tidyups) and keep runbooks and docs current.

Your Profile

Attitude & Behaviours

• Collaborative team player who fits into an existing engineering team shares knowledge asks questions and helps peers.
• Takes ownership for services they touch; pragmatic about shipping improvements incrementally.
• Comfortable learning on the job and seeking mentorship when needed.
• Communicates clearly and respectfully during incidents and in day-to-day work.
• Security- and reliability-minded : prefers small testable changes that reduce risk.

Skills & Experience

• 25 years working with AWS services ideally including Lambda Fargate (or ECS) Aurora (or RDS) VPC and IAM.
• Hands-on experience with Terraform and / or Serverless Framework for infrastructure as code.
• Practical experience building CI / CD pipelines GitHub Actions plus familiarity with CodeBuild / CodeDeploy or equivalents.
• Good debugging and scripting skills (Bash Python or similar) and comfort with containers / Docker.
• Familiarity with monitoring / observability tools (CloudWatch X-Ray or comparable) and writing meaningful alerts.
• Solid understanding of networking basics (subnets security groups routing NAT) and security principles.
• Experience with incident response postmortems and maintaining runbooks.
• Nice to have : AWS certifications (eg. AWS Certified DevOps Engineer or Solutions Architect) and experience with cost optimisation and database ops for Aurora.

What we can offer you

• Purpose - Help make amazing embedded finance experiences accessible to everyone and transform global financial services.
• Career - Build your career in an innovative adventurous and inclusive environment where everyone has the opportunity to make a difference and develop their skills.
• Reward - Competitive remuneration package with generous benefits and the potential to be rewarded with equity.
• People - Work with talented passionate and supportive people from all over the world in a flexible hybrid environment with trust and mutual respect at its heart.

Our Values

• Ambition - for our company colleagues and ourselves and the freedom and expectation to own it.
• Trust - which we give freely and expect in return.
• Curiosity - with our minds open to fresh thinking in the constant pursuit of improvement.
• Customer Obsession - ensuring that everything we do is with the customer in mind we succeed when they succeed.

Diversity Inclusion & Belonging

Our global team is amazing with over 150 colleagues spread across multiple countries and more than 15 languages spoken we empower them to bring great ideas drive new plans and help make Railsr a fantastic place to work. Were proud of how well our diverse mix of people collaborate and are fully committed to continuing to make diversity equity and inclusion part of everything we do.

Our flat structure encourages open communication to ensure that all voices opinions and ideas are heard and considered. At Railsr were all striving towards a common goal and are passionate about creating an inclusive and rewarding working environment where everyone can be their best self.

Railsr is an equal opportunities employer and we actively encourage all applications. Whilst we strive to ensure our recruitment process is fully accessible to all applicants please do contact us on

if you would like to discuss any specific requirements.

Required Experience :

Senior IC

Key Skills

APIs,C / C++,Computer Graphics,Go,React,Redux,Node.js,AWS,Library Services,Assembly,GraphQL,High Voltage

Employment Type: Full-Time

Department / Functional Area: Engineering

Experience: years

Vacancy: 1