Back-End Developer

Singularity Security Group; Town of Springfield (WI); On-site; USD 135,000 - 185,000; Full time

Benefits offered by this job

401(k)

401(k) matching

dental

health

life

vision insurance

paid time off

professional development assistance

retirement plan

Job summary

Singularity Security Group is seeking a highly skilled back-end developer for an in-person role in a secure environment. You will design, develop, and maintain server-side applications and APIs, manage databases, and ensure data integrity and security.

The role requires active TS/SCI clearance with CI polygraph, a bachelor’s degree in CS/SE, and 8+ years of backend experience. Proficiency in REST/GraphQL, cloud platforms, and containerized environments is essential.

Qualifications

• Active TS/SCI clearance with CI polygraph is required.
• Bachelor’s degree in CS/SE or related discipline.
• 8+ years of experience in back-end development.
• Experience with Python, Java, C#, Ruby or Node.js.
• Strong knowledge of SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/Cassandra).
• Experience designing and developing REST and GraphQL APIs.
• Cloud environments (AWS/Azure/GCP) and container tools (Docker, Kubernetes).
• Familiarity with Django, Spring or .NET server-side frameworks.
• Solid database architecture and performance tuning knowledge.
• Experience integrating and developing APIs.
• Security best practices for classified environments.
• Authentication/authorization systems experience.
• Preferred: experience with classified systems, cloud infra, signal processing, HPC, Kafka/RabbitMQ, Redis/Memcached, microservices, IaC (Terraform/Ansible), serverless (Lambda/Functions).

Responsibilities

• We design, develop, and maintain server-side applications and APIs.
• We build and manage databases while protecting data integrity and security.
• We design and tune database queries and data access layers.
• We integrate with Government authentication systems and security frameworks.
• We write clean, efficient, and well-documented code.
• We lead code reviews and promote best practices in back-end engineering.
• We implement security controls and ensure compliance with applicable regulations.
• We create and maintain documentation for back-end systems and interfaces.
• We collaborate with front-end developers to ensure smooth integration.
• We coordinate with the data engineering team on database design and implementation.
• We provide technical leadership and mentor junior developers.

Skills

TS/SCI clearance

Bachelor’s degree in CS/SE

8+ years backend experience

Python

Java

C#

Ruby

Node.js

SQL databases

NoSQL databases

REST APIs

GraphQL

Cloud platforms

Docker

Kubernetes

Django

Spring

.NET

Database design

API integration

Security best practices

Auth systems

Education

Bachelor’s degree in Computer Science or related

Tools

Docker

Kubernetes

Job description

Requirements

Must have:

• We require an active TS/SCI clearance with CI polygraph.
• We need a bachelors degree in Computer Science, Software Engineering, or a closely related discipline.
• We require at least 8 years of experience in back-end development.
• We need expertise in one or more back-end languages such as Python, Java, C#, Ruby, or Node.js.
• We require strong knowledge of database technologies, including SQL systems such as PostgreSQL or MySQL, as well as NoSQL platforms like MongoDB or Cassandra.
• We need experience designing and developing APIs, including REST and GraphQL.
• We require proficiency with cloud environments such as AWS, Azure, or GCP, along with container tools like Docker and Kubernetes.
• We need familiarity with server-side frameworks such as Django, Spring, or .NET.
• We require solid understanding of database architecture and performance tuning.
• We need experience integrating and developing APIs.
• We require knowledge of security best practices for classified environments.
• We need experience working with authentication and authorization systems.
• Preferred qualifications include experience with classified systems and their security requirements.
• Preferred qualifications include knowledge of TSSC operations and requirements.
• Preferred qualifications include experience with cloud-based infrastructure and services.
• Preferred qualifications include familiarity with signal processing and data analysis techniques.
• Preferred qualifications include experience with high-performance computing for data processing.
• Preferred qualifications include experience with message brokers such as Kafka or RabbitMQ.
• Preferred qualifications include knowledge of caching tools like Redis or Memcached.
• Preferred qualifications include experience designing and implementing microservices architectures.
• Preferred qualifications include proficiency with Infrastructure as Code tools such as Terraform or Ansible.
• Preferred qualifications include experience with serverless computing such as AWS Lambda or Azure Functions.

Responsibilities:

• We design, develop, and maintain server-side applications and APIs.
• We build and manage databases while protecting data integrity and security.
• We design and tune database queries and data access layers.
• We integrate with Government authentication systems and security frameworks.
• We write clean, efficient, and well-documented code.
• We lead code reviews and promote best practices in back-end engineering.
• We implement security controls and ensure compliance with applicable regulations.
• We create and maintain documentation for back-end systems and interfaces.
• We collaborate with front-end developers to ensure smooth integration.
• We coordinate with the data engineering team on database design and implementation.
• We provide technical leadership and mentor junior developers.

Company:

We are offering a full-time back-end developer opportunity with a salary range of $135,000 to $185,000 per year. This is an in-person role, and we provide a comprehensive benefits package that includes 401(k), 401(k) matching, dental, health, life, and vision insurance, paid time off, professional development assistance, and a retirement plan. We are looking for a highly skilled and motivated developer to join our dynamic team in a secure environment.

• 401(k)
• 401(k) matching
• dental
• health
• life
• vision insurance
• paid time off
• professional development assistance
• retirement plan