Site Reliability Engineer, SRE

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Payliance

WebsiteLinkedInAll Job Openings

51 - 200 employees

💳 Fintech

🤝 B2B

💰 $31M Debt Financing - Payliance on 2019-12

Fintech • B2B

Payliance is a payments technology company that provides a Payments-as-a-Service (PaaS) platform offering payment acceptance (ACH, credit/debit cards, real-time payments, check-based), verification/risk assessment tools, and debt recovery/accounts receivable management. They serve merchants, lenders, collection agencies, and BNPL providers, offering integrations, APIs, partner programs (ISOs, loan management systems), and compliance/licensed collection services. Payliance emphasizes reducing processing costs, fraud risk, and improving recovery rates; processes large volumes (reported $63B+ annually, 162M transactions, 40K merchant locations) and supports lending verticals (prime, subprime, earned wage access, BNPL) and merchants.

📋 Description

• Read, debug, and contribute to production C#/.NET code to diagnose and fix app-level reliability issues. • Identify and resolve memory leaks, thread pool exhaustion, and GC pressure before they manifest as incidents. • Partner with application engineers to embed reliability into new feature design and deployment practices. • Instrument .NET services with distributed tracing and structured logging to surface runtime anomalies early. • Operate and optimize EC2 Auto Scaling, ECS Fargate, and Lambda workloads — with clear judgment on when each is the right fit. • Build and maintain infrastructure-as-code using CloudFormation or CDK for consistent, reproducible environments. • Automate operational tasks, deployment pipelines, and disaster recovery procedures. • Continuously reduce toil through tooling and automation, freeing the team for higher-impact engineering work. • Manage RDS SQL Server deployments including Multi-AZ failover configuration and read replica setup. • Operate backup and point-in-time recovery (PITR) processes and validate restore procedures regularly. • Diagnose and resolve performance issues: slow queries, missing indexes, and blocking chains. • Capacity plan and scale database infrastructure to support transaction volume growth. • Build and maintain observability stacks using CloudWatch metrics, log insights, and alarms; AWS X-Ray for distributed tracing. • Own service health dashboards, SLOs/SLIs, and drive data-driven reliability improvements. • Design alerts that surface signal — not noise — and ensure on-call responders have the context to act quickly. • Conduct root cause analysis (RCA) on incidents and lead blameless post-mortems to capture lessons and prevent recurrence. • Design and maintain secure AWS network topologies: VPCs, subnets, security groups, and NACLs. • Configure and manage ALB/NLB routing, Route 53 DNS, and TLS certificate lifecycle via ACM. • Author and review least-privilege IAM policies; audit roles and resource-based policies for over-permissioning. • Support compliance and security controls relevant to a PCI-regulated payments environment. • Participate in on-call rotation to respond to production incidents and drive swift resolution. • Define and track error budgets; use them to balance velocity and reliability investment. • Communicate status updates clearly during incidents and coordinate cross-functional response. • Maintain and improve runbooks, escalation paths, and on-call health over time. • Collaborate with platform engineering teams on architecture decisions and scalability requirements. • Share observability and reliability best practices with application teams. • Mentor engineers on SRE principles and operational excellence.

🎯 Requirements

• 4+ years in SRE, DevOps, platform engineering, or a systems-focused software engineering role. • C#/.NET engineering ability — can read, debug, and contribute to production code; experience diagnosing memory leaks, thread exhaustion, and GC pressure. • AWS compute fluency: hands-on depth across EC2 Auto Scaling, ECS Fargate, and Lambda, with informed opinions on when to use each. • RDS SQL Server operational experience: Multi-AZ failover, read replicas, backup/PITR, slow query analysis, and blocking chain resolution. • Native AWS observability proficiency: CloudWatch (metrics, logs, alarms), X-Ray, and infrastructure-as-code via CloudFormation or CDK. • AWS networking and security competence: VPCs, security groups, ALB/NLB, Route 53, TLS/ACM, and least-privilege IAM. • SLO discipline: experience defining SLIs/SLOs against real metrics, running blameless postmortems, and carrying an on-call pager. • Strong scripting ability (PowerShell, Python, or Bash) for automation and operational tooling. • Excellent communication skills and a collaborative, blameless engineering mindset. • Genuine openness to adopting AI tools and a willingness to experiment with new technology to work smarter and faster.

🏖️ Benefits

• Performance-based annual bonus. • Medical, Dental, and Vision insurance. • 401(k) with company match. • Generous PTO plus paid company holidays. • Company-paid life and long-term disability insurance. • Paid parental leave.