Leondis Evans
Backend development, legacy modernization, and cloud-centric microservices.
Building systems that last
I am a backend and platform engineer with over 10 years of experience in delivering distributed systems, cloud platforms, and observability solutions. I focus on establishing technical direction, optimizing service operations, and mentoring teams to enhance their efficiency.
My expertise lies in creating standardized observability practices and cutting infrastructure costs while improving system reliability and performance. I am dedicated to fostering collaborative team environments where engineering excellence thrives.
Experience
Lead Software Engineer
Owned design and rollout of an org-level OpenTelemetry observability platform (Loki, Mimir, Tempo, Grafana) that standardized metrics, logging, and tracing across distributed systems.
Redesigned high-cost data pipelines, cutting ~$40K/month (~$480K/year) in infrastructure spend through performance and efficiency improvements while preserving operational requirements.
Drove observability standards across teams, improving incident detection and reducing mean time to resolution.
Senior Software Engineer
Designed and owned a multi-channel notification platform (email, SMS, push, in-app) serving millions of customers at high daily message volume.
Built event-driven delivery pipelines with retries, dead-letter handling, and idempotency so customer communications stayed reliable under failure and load.
Worked across Customer and Product teams to define requirements and ship real-time messaging for core product flows.
Software Developer
Delivered performance and SEO improvements that increased organic traffic by 60%+.
Partnered with cross-functional stakeholders to align technical delivery with business goals.
Senior Professional Software Engineer
Re-architected legacy systems into service-oriented architecture (SOA), improving scalability and development speed.
Built SLA reporting systems eliminating contractual penalties and improving compliance.
Led design reviews and technical direction for the SOA modernization across distributed onshore and partner teams.
Skills
AWS
- SQS
- SNS
- SES
- EC2
- S3
- Lambda
- ECS
- ECR
- Kinesis
- Secrets Manager
- Certificate Manager
Azure
- VMs
- Playbooks
Backend
- .NET
- Spring Boot
- REST APIs
- SOA
- microservices
Data
- MySQL
- PostgreSQL
- DynamoDB
- Elasticsearch
- Redis
- Snowflake
- Oracle
DevOps
- Docker
- CI/CD
- GitHub Actions
- Azure DevOps
Languages
- C#
- Python
- Java
- C++
- PHP
Messaging
- Event-driven pipelines
- RabbitMQ
Observability
- OpenTelemetry
- Loki
- Mimir
- Tempo
- Grafana
Quality
- Selenium
- Playwright
Selected work
WeddingSite
- C#
EliteTrainerMobile
- C#
FitnessService
- C#
GateKeeper
- HTML
SacredBeauty
ShamCalendly
- C#
Let’s talk
Open to technical leadership conversations and collaboration.