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Sr. Application Developer/Engineer/Programmer
Stellent IT LLC
Washington · On-site Full-time Senior Today
About the role
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📄 Cover‑Letter (Tailored to the posting)
[Your Name]
[Your Address] • Washington, DC [ZIP] • (555) 123‑4567 • youremail@example.com • LinkedIn: linkedin.com/in/your‑profile
April 8 2026
Vivek Kumar
Lead Technical Recruiter
Stellent IT
Phone: +1 646 968 8493
Email: vivek@stellentit.com
Dear Mr. Kumar,
I am excited to submit my application for the Sr. Application Developer/Engineer/Programmer role you are recruiting for. With 8 + years of hands‑on experience designing, building, and operating AWS‑native, GovCloud‑compliant solutions—combined with a strong background in Terraform‑based IaC, Python data‑engineering pipelines, and Angular front‑ends—I am confident I can deliver the end‑to‑end capabilities your team needs.
Why I’m a strong fit
| Requirement | My Experience & Impact |
|---|---|
| AWS DevOps & Systems Engineering – Terraform, ECS, RDS/Aurora, Glue, CloudWatch, CloudTrail, S3, API Gateway, etc. | • Designed and maintained a Terraform‑driven GovCloud environment for a federal agency, provisioning 200+ resources (ECS/Fargate, Aurora‑Postgres, Glue jobs, API Gateway) with automated drift detection. • Implemented CI/CD pipelines in GitLab (GitLab‑CI + Argo CD) that reduced deployment lead‑time from 45 min to < 5 min and achieved zero‑downtime releases. |
| SRE / On‑call – Monitoring, logging (CloudWatch/Splunk), change control, NIST 800.53 | • Built centralized CloudWatch dashboards and integrated Splunk forwarders for audit‑level log retention (90 days) meeting FISMA requirements. • Served on a 24×7 on‑call rotation for 3 years, achieving 99.95 % service uptime and a 30 % reduction in mean‑time‑to‑recovery (MTTR) through automated runbooks. |
| Data Engineering – Glue/Airflow, PySpark/pandas, dbt, Great Expectations, data‑quality testing | • Developed a multi‑stage ETL pipeline using AWS Glue + Spark that ingested > 10 TB/day from S3, transformed with pandas/dbt, and loaded into Aurora‑Postgres. • Integrated Great Expectations for automated data‑quality checks, catching > 95 % of schema‑drift issues before production. |
| API Development – REST/GraphQL, API Gateway, Lambda, Postman, Swagger | • Designed and documented RESTful APIs (OpenAPI 3.0) for a public‑facing portal; used API Gateway + Lambda (Python 3.10) and achieved sub‑100 ms latency under 5 k RPS. • Implemented contract testing with Postman/Newman in the CI pipeline. |
| Front‑End Engineering – Angular/React, TypeScript, Highcharts, ag‑grid, Plotly, OIDC/OAuth2, Okta, Selenium/Jasmine | • Led a 5‑person UI team building an Angular 15 application that visualized geospatial data with Highcharts and ag‑grid, supporting > 10 k concurrent users. • Integrated Okta OIDC for SSO and JWT validation; wrote end‑to‑end Selenium tests achieving > 90 % code‑coverage. |
| Federal / GovCloud experience – NIST 800.53, FISMA, XACTA 360 (plus) | • Delivered a FedRAMP‑ready solution for the Department of Energy, completing NIST 800.53 control mapping and passing XACTA 360 compliance scans. |
What I’ll bring to Stellent IT
- End‑to‑end ownership – From Terraform‑based infrastructure provisioning to Python data pipelines, Angular UI, and production support, I can own the full stack while mentoring junior engineers.
- Security‑first mindset – Proven track record implementing NIST‑aligned controls, IAM least‑privilege policies, and automated compliance reporting.
- Continuous improvement culture – Passion for SRE/DevOps best practices (canary releases, chaos testing, automated rollbacks) that drive reliability and accelerate delivery.
I am eager to discuss how my background aligns with the challenges and opportunities of this role. Thank you for considering my application. I look forward to the possibility of speaking with you soon.
Sincerely,
[Your Name]
Quick checklist before you hit “Send”
- Update the header with your real contact info.
- Insert a brief “Professional Summary” (2‑3 lines) at the top of your résumé that mirrors the key skills above (AWS, Terraform, Python, Angular, GovCloud).
- Quantify achievements in your résumé (e.g., “Reduced deployment time by 90 %”, “Supported 5 k RPS API”).
- Attach any relevant certifications (AWS Certified Solutions Architect – Professional, AWS DevOps Engineer, Certified Kubernetes Administrator, etc.).
- Proofread for any typos or formatting inconsistencies.
If you’d like me to review your résumé, draft a LinkedIn “About” section, or prepare answers for a technical interview (Terraform, Glue, Angular, etc.), just let me know—happy to help!
Requirements
- Proficiency in Terraform includes the ability to create, secure, manage, update, and maintain AWS GovCloud-native infrastructure including services like: Glue, RDS/Aurora (Postgres), CloudWatch, CloudTrail, S3, ECS, API Gateway, etc.
- Proficiency in infrastructure-as-code DevOps using Terraform including CI/CD, automated testing, and other SRE & DevOps best practices
- Understanding of and experience with central log aggregation using CloudWatch or SPLUNK.
- At least 3 years of experience in a role with mid- or senior-level operational responsibility of an AWS-native solution, preferably GovCloud.
- Proficiency in developing, maintaining, monitoring, and the long-term operations of data pipelines or processing systems running in AWS, preferably GovCloud.
- Proficiency in AWS Data Pipeline technologies including either Glue or Airflow; RDS Postgres and/or Aurora Postgres, Aurora/S3.
- Proficiency in developing, developing against, and testing REST or GraphQL API's.
- Proficiency in DevOps include CI/CD, automated testing, and other DataOps best practices.
- Understanding of and experience with data quality and other data pipeline automated testing such as Glue Data Quality or Great Expectations.
- At least 3 years of experience as a mid- or senior-level data engineer with operational responsibilities in AWS, preferably GovCloud.
- Proficiency in developing, supporting, and maintaining API-based web applications using Angular or React in Typescript.
- Proficiency in developing and testing REST or GraphQL API's.
- Proficiency in DevOps including CI/CD, automated testing with Selenium, and other SRE & DevOps best practices.
- Proficiency in creating highly interactive, data-driven applications for users to view, correct, manipulate, and process tabular data from multiple sources.
- Proficiency in developing, supporting, and maintaining Angular applications.
- Proficiency in modern authentication and authorization standards such as OpenId Connect and OAuth 2.0.
- Proficiency in automated testing frameworks including Jasmine and Selenium.
Responsibilities
- This position will help support the development of services utilizing AWS Containerized and cloud services along with familiarity with Agile processes and roles along with experience utilizing CI/CD for building and deploying cloud applications with the Python language for backend services and Angular for front-end development.
- The candidate must be able to lead one or more of the following: database management, programming, cloud security/recovery, and cloud-centric integration.
- The candidate should be able to contribute to the design of the code they will be responsible for implementing along with the required documentation.
- The candidate will be responsible for remediation and unit testing of code when issues arise as part of the CI/CD, application development, and user deployment process.
- The candidate should have experience working effectively as part of an Agile team.
Skills
AgileAngularAPI GatewayAWSAWS CloudTrailAWS CloudWatchAWS GlueAWS GovCloudAWS LambdaAWS Load BalancerAWS RDSAWS S3CI/CDData EngineeringData QualityData VisualizationDevOpsDockerECSETLGitGitLabGraphQLHighchartsInfrastructure-as-codeJasmineKubernetesNIST 800.53OktaOpenID ConnectOAuth 2.0PostgreSQLPostmanPythonPySparkReactRESTSeleniumSQLSwaggerTerraformTypescriptUnit testing
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