Who We Are

Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

Long Description

Key Responsibilities

Build/maintain CI/CD pipelines for ECS services (WS CM, Cloud API) and Lambda (TransactionManager) using GitHub Actions or CodePipeline.
Manage container build, tagging, and deployment workflows for ECS Fargate via ECR.
Implement blue/green and rolling deployments for zero-downtime releases.
Provision environment-specific infrastructure (dev/staging/prod) with Terraform or AWS CDK; ensure parity.
Operate/monitor ECS autoscaling, ALB health checks, and target groups for WebSocket workloads.
Manage secrets/config (AWS Secrets Manager, SSM Parameter Store) across services.
Build operational dashboards (CloudWatch, Grafana) for WS connections, reconnects, queue depths, Lambda errors, and latency.
Set up alerts/on-call runbooks for critical scenarios (stale connections, DLQ backlog, terminal send failures, Lambda throttling).
Support load testing for 10k+ concurrent WebSocket connections.
Implement log aggregation/structured pipelines (CloudWatch Logs Insights, OpenSearch).

Required Technical Skills

5+ Years in total Exp
CI/CD: GitHub Actions or CodePipeline
Docker/container build pipelines
AWS ECS Fargate deployment/management
IaC: Terraform or AWS CDK
AWS: ALB, Target Groups, Health Checks
AWS CloudWatch: dashboards, alarms, logs
AWS Secrets Manager & SSM Parameter Store
SQS monitoring & DLQ alerting
AWS Lambda deployment/versioning
Amazon ECR image lifecycle policies
Git and branch-based release workflows
Linux / Bash scripting

Engineering Standards

Strong Python or Bash scripting for automation/tools
Familiarity with at least one app language (Node.js, Python, Go, Java) for diagnosing issues
IaC in collaborative Git workflows (PRs, ownership, change management)
Understanding of 12-factor apps, environment-based config, stateless deployments
Read logs, interpret traces, and correlate distributed traces
Semantic versioning, release tagging, artifact management
Networking fundamentals: VPCs, subnets, SGs, DNS, LB routing
Clear runbooks, post-mortems, and operational docs

Nice To Have

WebSocket-heavy workloads; connection lifecycle knowledge
Redis cluster ops and DynamoDB capacity planning
AWS Certifications (DevOps Engineer – Professional, SysOps Administrator)
Fintech/payments/PCI-DSS exposure
Load testing tools (k6, Locust, Artillery) for thousands of concurrent connections

Shape the evolution

We are on an exciting journey towards the next frontiers of payments technology, and we look for big thinkers, people with passion, can-do attitude and a hunger to learn and grow. Here you'll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. With an empowering culture, strong technology and extensive training opportunities, we help you accelerate your career - wherever you decide to go. Join our global team of 18,000 innovators and shape a tomorrow that is yours to own.

Learn more about life at Worldline at jobs.worldline.com

We are proud to be an Equal Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex, sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any applicable legally protected characteristics.

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