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Senior Slack Software Engineer Jobs in Frederick, MD

Position Overview Leidos is seeking an experienced Senior Software Engineer to join the Chinook Program supporting a premier Intelligence Community customer. In this role, you design, develop ...

Senior Software Engineer

Gaithersburg, MD · On-site

$107K - $195K/yr

Position Overview Leidos is seeking an experienced Senior Software Engineer to join the Chinook Program supporting a premier Intelligence Community customer. In this role, you design, develop ...

Senior Software Engineer

Gaithersburg, MD · On-site

$107K - $195K/yr

Description Leidos is seeking a TS/SCI cleared Senior Software Engineer to join our mission-driven team. This role supports our client's efforts to design and implement a cutting-edge data-centric ...

Senior Software Engineer

Rockville, MD · On-site

$107K - $195K/yr

Description Leidos is seeking a TS/SCI cleared Senior Software Engineer to join our mission-driven team. This role supports our client's efforts to design and implement a cutting-edge data-centric ...

Senior Software Engineer

Gaithersburg, MD · On-site

$107K - $195K/yr

Position Overview Leidos is seeking an experienced Senior Software Engineer to join the Chinook Program supporting a premier Intelligence Community customer. In this role, you design, develop ...

Senior Software Engineer

Germantown, MD · On-site

$107K - $144K/yr

Join our dynamic radar defense company as a Senior Software Engineer where you'll drive technical vision and architect transformative solutions across our entire product ecosystem. We're seeking a ...

Senior Software Engineer

Germantown, MD · On-site

$107K - $144K/yr

Join our dynamic radar defense company as a Senior Software Engineer where you'll drive technical excellence and help shape the architecture of mission-critical systems. We're seeking an experienced ...

Senior Software Engineer

Rockville, MD · On-site

$131K - $237K/yr

As a Senior Software Engineer, you will : * Support the development of distributed backend services, APIs, and platform microservices supporting enterprise AI operations. * Collaborate with ...

Senior Software Engineer

Rockville, MD · Hybrid

$131K - $237K/yr

As a Senior Software Engineer, you will : * Support the development of distributed backend services, APIs, and platform microservices supporting enterprise AI operations. * Collaborate with ...

Senior Software Engineer

Leesburg, VA · On-site +1

$123K - $163K/yr

We have an exciting opportunity for a Senior Software Engineer on our Space Software Product Engineering (SSPE) team! This role is responsible for development and maintenance of critical ground ...

Senior Software Engineer

Leesburg, VA · On-site +1

$123K - $163K/yr

We have an exciting opportunity for a Senior Software Engineer on our Space Software Product Engineering (SSPE) team! This role is responsible for development and maintenance of critical ground ...

Senior Software Engineer

Leesburg, VA · On-site

$123K - $163K/yr

We have an exciting opportunity for a Senior Software Engineer on our Space Software Product Engineering (SSPE) team! This role is responsible for development and maintenance of critical ground ...

Senior Software Engineer

Rockville, MD · Hybrid

$112K - $211K/yr

Under minimal supervision, the Senior Software Engineer assists in developing software products and works on improving the overall quality of the product throughout the software development life ...

Senior Software Engineer

Frederick, MD · On-site

$80K - $180K/yr

NET Core with MVC and Vue.js at the front-end. We develop software as simple as forms for data ... Our senior engineers solve problems, define the features, and help coordinate implementation with ...

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Showing results 1-20

Senior Slack Software Engineer information

See Frederick, MD salary details

$75.1K

$142.5K

$190.9K

How much do senior slack software engineer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for senior slack software engineer in Frederick, MD is $142,470.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,800.00 and $160,600.00 per year, depending on experience, location, and employer.

What does a Senior Slack Software Engineer do?

A Senior Slack Software Engineer is responsible for designing, developing, and maintaining complex software solutions within the Slack platform. They collaborate with cross-functional teams to deliver high-quality features, optimize system performance, and ensure the scalability of Slack's infrastructure. In addition to hands-on coding, they often mentor junior engineers, contribute to architectural decisions, and help set technical direction for projects. Their work ensures Slack remains reliable, secure, and user-friendly for millions of users.

What is the difference between Senior Slack Software Engineer vs Slack Software Engineer?

AspectSenior Slack Software EngineerSlack Software Engineer
Required Experience5+ years in software development, leadership experience1-3 years, entry to mid-level
ResponsibilitiesDesigning complex features, mentoring, leading projectsDeveloping features, fixing bugs, collaborating with teams
Work EnvironmentFast-paced, collaborative, cross-functional teamsTeam-oriented, Agile environment
CertificationsOptional, but relevant certifications preferredNot typically required

The main difference between a Senior Slack Software Engineer and a Slack Software Engineer lies in experience, responsibilities, and leadership roles. Senior engineers typically lead projects and mentor others, while Slack Software Engineers focus on developing and maintaining features. Both roles work in collaborative, fast-paced environments within the tech industry.

How does a Senior Slack Software Engineer typically collaborate with cross-functional teams during feature development?

As a Senior Slack Software Engineer, you will frequently collaborate with product managers, designers, and quality assurance teams throughout the product development lifecycle. This collaboration often includes participating in planning meetings, providing technical input during design discussions, and ensuring alignment on feature requirements and timelines. You’ll also mentor junior engineers and facilitate code reviews to maintain high-quality standards. Strong communication skills and a proactive approach are essential, as you’ll often bridge the gap between technical implementation and user-facing features.

What are the key skills and qualifications needed to thrive as a Senior Slack Software Engineer, and why are they important?

To thrive as a Senior Slack Software Engineer, you need advanced programming skills (such as Java, Python, or JavaScript), a deep understanding of software architecture, and experience with scalable, distributed systems, typically supported by a bachelor’s or master’s degree in computer science or a related field. Expertise in Slack’s API, cloud platforms (like AWS or GCP), CI/CD pipelines, and version control systems (such as Git) is commonly required. Strong problem-solving abilities, leadership, and effective communication help you collaborate across teams and mentor junior engineers. These skills ensure the development of reliable, innovative solutions that enhance Slack's platform while supporting team growth and efficient project delivery.
What are the most commonly searched types of Slack Software Engineer jobs in Frederick, MD? The most popular types of Slack Software Engineer jobs in Frederick, MD are:
What are popular job titles related to Senior Slack Software Engineer jobs in Frederick, MD? For Senior Slack Software Engineer jobs in Frederick, MD, the most frequently searched job titles are:
What job categories do people searching Senior Slack Software Engineer jobs in Frederick, MD look for? The top searched job categories for Senior Slack Software Engineer jobs in Frederick, MD are:
What cities near Frederick, MD are hiring for Senior Slack Software Engineer jobs? Cities near Frederick, MD with the most Senior Slack Software Engineer job openings:

Senior Software Engineer

Leidos

Gaithersburg, MD

$107K - $195K/yr

Full-time

Re-posted 6 days ago


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 151 frontline employees who took The Breakroom Quiz

75th of 481 rated business services


Job description

Shape the Future of National Security

Are you passionate about solving complex technical challenges that directly support the nation's most critical intelligence missions? At Leidos, you'll have the opportunity to work alongside some of the industry's brightest engineers, developing innovative software solutions that make a real-world impact. If you thrive in a fast-paced, collaborative environment where your expertise drives mission success, we'd love to hear from you.

Position Overview

Leidos is seeking an experienced Senior Software Engineer to join the Chinook Program supporting a premier Intelligence Community customer. In this role, you design, develop, integrate, and maintain mission-critical software applications that enable our customer to solve complex operational challenges. You'll work with cross-functional teams to deliver secure, scalable, and high-performing solutions while leveraging modern software engineering practices and technologies.

This is an opportunity to contribute to high-impact projects in an agile environment where innovation, technical excellence, and continuous learning are valued.

Clearance Level Required:

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

Primary Responsibilities:

  • Resolve various tasks as prioritized by the team product owner.
  • Engage in the complete software development lifecycle, operating within well-defined parameters.
  • Take ownership of delivering enhancements within a system or application.
  • Break down sizable tasks into manageable units for execution and provide LOE estimations.
  • Collaborate with fellow software engineers to create and document optimal technical designs.
  • Ensure team compliance with Agile processes and best practices.
  • Build software solutions where the solution is not clearly defined but always prioritizing customer needs.
  • Resolve obstacles for the development team, working collaboratively with the Product Owner, technical leadership, and other engineers.
  • Ensureall Scrum events take place and are positive, productive, and kept within the timebox.

Basic Qualifications:

  • US citizenship is required per contract.
  • Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience.
  • Experience working as a Scrum Master for a software development or similar technical team.
  • Strong proficiency with the following technologies:
    • Web:Django, JQuery, Ajax, and REST APIs
    • Object-oriented Programming:Python, Java, and JavaScript
    • Relational Database:SQL/Postgres
    • Operating System: Windows, Linux
    • Version Control System:Git, GitLab
  • Experience incorporating GEOINT domain understanding when troubleshooting, optimizing, and validating system behavior and data outputs across environments.
  • Deep understanding of modern software design patterns and coding standards.
  • Experience architecting, developing, and delivering complex software systems into production.
  • Working knowledge of Agile development and continuous integration/continuous delivery methodologies and tools.
  • Strong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques.

Preferred Qualifications:

  • Experience with scripting languages such as REACT.
  • Software Architectures:Client-Server, Model-View-Controller.
  • Cloud Exposure:
    • Multi-cloud architectures: AWS, IBM, Google, Azure, and Oracle.
    • Specific AWS Services:S3, SQS, SNS, EC2, CloudFormation and RDS.
    • Certifications such as AWS DevOps Engineer or similar.

#Chinook

#NSBA

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:July 10, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.


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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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