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Senior Slack Software Engineer Jobs in Silver Spring, MD

Virtru

Senior Software Engineer

Washington, DC · On-site +1

$155K - $200K/yr

As a Senior Backend Software Engineer, you will be a core contributor to our Go-based backend and ... slack, email, zoom, etc. Perks & Benefits: At Virtru, we believe people do their best work when ...

PEMCCO, Inc.

Senior Software Engineer

Washington, DC · On-site

$68.43 - $112.91/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

PEMCCO

Senior Software Engineer

Washington, DC · On-site

$68.43 - $112.91/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

PEMCCO, Inc.

Senior Software Engineer

Washington, DC · On-site

$68.43 - $112.91/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

PEMCCO

Senior Software Engineer

Washington, DC · On-site

$142.33 - $234.85/hr

PEMCCO is seeking a Senior Software Engineer to provide technical leadership in the design, development, integration, testing, and sustainment of software applications and systems supporting critical ...

Systek

Senior Software Engineer

Hanover, MD · On-site

$120K - $159K/yr

SENIOR SOFTWARE ENGINEER The company is seeking a Senior Software Engineer to provide SETA support in Hanover, MD. RESPONSIBILITIES * Design, develop and install software solutions. * Build high ...

Gridpoint

Senior Software Engineer

Reston, VA

$127K - $168K/yr

The Senior Software Engineer shall perform with a high degree of independence and expertise to implement solutions for a variety of complex software products/features... both wholly new efforts and ...

Cherokee Federal

Software Engineer- Senior

Herndon, VA · On-site

$154K/yr

Software Engineer - Senior Responsibilities Include: * Contribute as an experienced Software Developer to a technology-focused program supporting a key government customer, delivering innovative ...

Cherokee Federal

Software Engineer- Senior

Herndon, VA · On-site

$154K/yr

Software Engineer - Senior Responsibilities Include: * Contribute as an experienced Software Developer to a technology-focused program supporting a key government customer, delivering innovative ...

Gridpoint

Senior Software Engineer

Reston, VA · On-site

$127K - $168K/yr

The Senior Software Engineer shall perform with a high degree of independence and expertise to implement solutions for a variety of complex software products/features... both wholly new efforts and ...

Cherokee Federal

Software Engineer- Senior

Herndon, VA · On-site

$131 - $177/hr

Software Engineer - Senior Responsibilities Include: * Contribute as an experienced Software Developer to a technology-focused program supporting a key government customer, delivering innovative ...

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All JobsSlack Software Engineer JobsSenior Slack Software Engineer JobsSenior Slack Software Engineer Jobs in Silver Spring, MD

Senior Slack Software Engineer information

See Silver Spring, MD salary details

$78K

$148.1K

$198.5K

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

As of Aug 24, 2026, the average yearly pay for senior slack software engineer in Silver Spring, MD is $148,132.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,600.00 and $167,000.00 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.

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 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.

What are the most commonly searched types of Slack Software Engineer jobs in Silver Spring, MD?

The most popular types of Slack Software Engineer jobs in Silver Spring, MD are:

What job categories do people searching Senior Slack Software Engineer jobs in Silver Spring, MD look for?

The top searched job categories for Senior Slack Software Engineer jobs in Silver Spring, MD are:

What cities near Silver Spring, MD are hiring for Senior Slack Software Engineer jobs?

Cities near Silver Spring, MD with the most Senior Slack Software Engineer job openings:

Senior Slack Software Engineer jobs near you
Infographic showing various Senior Slack Software Engineer job openings in Silver Spring, MD as of August 2026, with employment types broken down into 87% Full Time, 9% Part Time, and 4% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $148,132 per year, or $71.2 per hour.

Senior Software Engineer -- Secure Mission Systems

Rackner

Laurel, MD • On-site, Remote

$121K - $160K/yr

Full-time

Re-posted 2 days ago

Job description

Senior Software Engineer — Secure Mission Systems

Location: Mainly remote, with onsite work in Laurel, Maryland, typically one day approximately every six weeks for team-wide sprint planning
Clearance: Active final DoD Secret clearance required

Build Secure Software for High-Impact Defense Missions

Rackner is seeking a Senior Software Engineer to design, build, test, and deliver secure mission-planning and decision-support software for a Department of Defense customer.

This role gives you broader ownership than a traditional feature-development position. You will contribute across application engineering, secure CI/CD, containerized deployment, automated testing, cybersecurity remediation, and AI-capability integration. You will work alongside experienced technical teams and help move complex software from design through secure delivery.

This position is contingent upon contract award and final customer approval.

What You Will Do

  • Design, develop, test, and integrate new software capabilities.
  • Build and maintain secure CI/CD workflows using GitLab and related development systems.
  • Support containerized application deployment through OpenShift and Kubernetes.
  • Apply secure software-development lifecycle practices throughout delivery.
  • Integrate AI models and support capabilities involving LLM assistants, retrieval-augmented generation, and agentic AI.
  • Develop unit, integration, and system-level tests.
  • Use automated security tools such as Fortify, JFrog Xray, and OWASP ZAP.
  • Investigate vulnerabilities and support cybersecurity remediation.
  • Participate in code reviews, technical reviews, and solution-design discussions.
  • Create software-design documents, sequence diagrams, workflow descriptions, and test reports.
  • Communicate progress, blockers, risks, and schedule concerns to technical and program stakeholders.
  • Collaborate with customer technical leads in remote and onsite settings.

What You Will Bring

  • Bachelor's degree in Computer Science or a related field
  • 10+ years of software engineering experience, including hands-on design, development, testing, or integration work
  • Hands-on experience with CI/CD, Kubernetes, GitLab, and OpenShift
  • Strong understanding of secure software-development lifecycle practices
  • Experience using Fortify and/or JFrog Xray for automated security scanning and vulnerability remediation
  • Integrating AI models or AI-enabled capabilities into software applications
  • Building automated unit and integration tests
  • Clear technical documentation and stakeholder communication skills

Helpful Experience

  • OWASP ZAP or comparable application-security testing tools.
  • Artifactory or similar artifact-management platforms.
  • LLM assistants, retrieval-augmented generation, or agentic-AI components.
  • Jira, Confluence, and Slack in a structured development environment.
  • Software delivery supporting defense, national-security, or other regulated missions.
  • Customer-provided development systems and secure internal networks.

Why Rackner

At Rackner, you will have the opportunity to build technology that supports critical defense and public-sector missions.

You will work on more than isolated coding tickets or pipeline tasks. This role brings together hands-on application development, secure software delivery, container platforms, automated testing, cybersecurity, and emerging AI capabilities.

Rackner has delivered more than $30 million in recent federal awards and supports mission-critical work across defense, civilian, and public-sector environments. We are looking for a senior software engineer who can help build on that momentum by delivering reliable software, strengthening security, and helping teams move complex mission capabilities forward.

Benefits & Professional Growth

  • Competitive compensation
  • Company-supported certifications aligned with current and future program work
  • 401(k) with 100% company match up to 6%
  • Medical, dental, vision, life, and disability coverage
  • Paid time off and company holidays
  • Remote-work support and home-office equipment plan
  • Fitness and wellness reimbursement
  • Weekly pay schedule
  • Professional-development and future growth opportunities

Apply

If you are a senior software engineer who wants broader ownership across secure application development, container platforms, DevSecOps, software assurance, and AI integration, we would like to hear from you.