What does it actually take to get hired at a company where the work is often classified, the offices sit inside government facilities, and a security clearance can matter more than a perfect resume? Leidos careers raise that question directly, and the answer is more practical than most job seekers expect.

Leidos is one of the largest defense, intelligence, and IT services contractors in the United States. It was formed in 2013 when SAIC split into two companies, with Leidos taking the larger government-services business. It is headquartered in Reston, Virginia, trades on the NYSE under the ticker LDOS, and reports roughly 47,000 employees. That scale means thousands of open roles at any given time, but it also means a hiring process shaped by contracts, clearances, and federal customers rather than by the usual corporate playbook.

This guide walks through what Leidos looks for, where the jobs are, how the application process works, and the mistakes that quietly sink candidates.

What Kind of Company Is Leidos to Work For?

Leidos is a federal contractor first and a technology company second. Its customers include the Department of Defense, the intelligence community, NASA, the Department of Homeland Security, and the Department of Health and Human Services. That customer list explains almost everything about the employee experience: much of the work happens on-site at government or customer facilities, and fully remote roles are the exception rather than the rule.

The company has expanded through acquisitions that shaped its hiring needs. It completed its purchase of Dynetics in January 2020, adding hypersonics, space, and defense hardware work. Its 2024 acquisition of Ultra Maritime’s naval-systems business, completed in early 2025, broadened its undersea and naval portfolio. Each deal brought in new engineering disciplines and new teams, which is why Leidos job postings span everything from shipboard electronics to health data systems.

For job seekers, the practical takeaway is simple: Leidos is not a single employer with a single culture. A software engineer supporting a health agency contract and a systems engineer on a defense program may work in completely different environments under the same corporate banner.

The Roles Leidos Hires Most

Leidos recruits heavily in STEM fields. The biggest hiring categories tend to be:

• Software engineering, from web applications to embedded systems

• Systems engineering, including requirements, integration, and testing

• Cybersecurity, spanning analysts, engineers, and compliance specialists

• Data science and analytics, increasingly tied to AI and machine learning work

• Health IT, supporting federal health agencies and benefits systems

• Logistics, intelligence analysis, and mission support roles tied to specific contracts

The company also runs a university relations and college recruiting program along with an internship pipeline. Students who want a foot in the door often find that an internship converts into a full-time offer faster than an outside application, especially for candidates who can begin the clearance process early.

Cleared vs. Clearance-Eligible Roles

This is the single most important distinction in Leidos hiring. Many postings require an active U.S. security clearance at the Secret, Top Secret, or TS/SCI level. The careers site lets applicants filter by clearance, and that filter can cut the available job pool dramatically.

Roles labeled clearance-eligible are different. They are open to candidates who do not yet hold a clearance but can obtain one, which usually means U.S. citizenship, a clean background, and a willingness to complete the process. Competition for these roles is fierce because the eligible candidate pool is much larger than the cleared one.

How the Leidos Application Process Works

The process is more standardized than at many tech companies, but it moves at the speed of the contract behind the job. A role funded and urgent can move in weeks. A role awaiting award or budget approval can sit for months.

Here is the typical sequence:

• Online application. Candidates apply through the official careers site. The system parses resumes, so plain formatting and clear job titles beat creative design.

• Recruiter screen. A short call covering availability, citizenship and clearance status, salary expectations, and location flexibility.

• Hiring manager interview. Usually a technical or experience-focused conversation with the person who would supervise the role.

• Panel or technical interview. For engineering and cyber roles, expect scenario questions, system-design discussion, or a practical exercise.

• Offer and pre-employment steps. Background check, drug screening where required, and for clearance-eligible roles, the security questionnaire and investigation.

One detail candidates underestimate: the security clearance process itself is separate from the hiring decision. A conditional offer can be extended while the investigation runs, and the wait can stretch for months depending on the clearance level and the applicant’s history. Planning for that gap is part of the job hunt.

What Leidos Looks For in Candidates

Leidos hiring managers tend to value demonstrable, contract-relevant experience over pedigree. A candidate who has worked inside a federal environment, handled controlled unclassified information, or supported a government program has a real edge, because onboarding to those environments takes time the company would rather not spend.

Beyond that, a few traits show up again and again in successful hires:

• Clarity under constraints. Federal work involves documentation, reviews, and compliance. Engineers who can explain their work in writing do well.

• Certifications that map to contracts. Security+, CISSP, and similar credentials often appear as requirements rather than nice-to-haves, because contracts specify them.

• Stability and patience. The hiring cycle can be slow, and the work environment can be structured. Candidates who thrive on rapid, chaotic startup energy sometimes struggle.

• Willingness to be on-site. Many roles require presence at a customer facility, and flexibility on location widens the options considerably.

It also helps to treat the application like a targeted pitch rather than a volume play. A candidate who tailors a resume to a specific requisition, uses the same terminology as the posting, and can speak to the customer mission stands out in a stack of generic submissions.

Common Mistakes That Cost Candidates the Job

Practical experience with contractor hiring surfaces a handful of recurring errors. These are the ones that matter most.

Applying to cleared roles without a clearance. It feels efficient to apply broadly, but a candidate without an active clearance is usually screened out of a Secret or TS/SCI requisition within seconds. Spending that effort on clearance-eligible postings produces far better results.

Ignoring the citizenship requirement. Many positions require U.S. citizenship, and some require the ability to obtain and maintain a clearance. Applicants who miss this waste time on roles they cannot hold.

Treating the recruiter screen as a formality. The screen is where salary expectations, location, and clearance status get sorted. Candidates who give vague answers here often get quietly deprioritized.

Submitting a resume that hides the relevant keywords. Automated screening looks for specific terms. A resume that describes “built dashboards” instead of naming the tools and frameworks in the posting may never reach a human.

Assuming remote work is available. Leidos’ work is often tied to government sites. Candidates who require fully remote arrangements should filter carefully rather than assume flexibility that the contract does not allow.

Neglecting the background realities of cleared work. Finances, foreign contacts, and social media history all come up in a clearance investigation. Understanding that process before applying saves surprises later.

Pay, Benefits, and What the Offer Looks Like

Leidos posts pay ranges for many U.S. roles, driven partly by state pay-transparency laws. Those ranges change frequently and should always be read from the live posting rather than from secondhand sources. The same job title can carry different bands depending on location, clearance level, and contract.

Benefits follow a large-contractor pattern: health coverage, retirement savings with company contribution, paid time off, and education support. The details shift year to year, so candidates should ask the recruiter for the current summary rather than rely on older reviews.

One compensation nuance worth knowing: cleared roles often command a premium, because the supply of cleared workers is limited and the cost of sponsoring a clearance is real. A candidate who already holds an active TS/SCI is negotiating from a stronger position than one who does not, and that difference can be substantial.

How to Strengthen an Application Before You Submit

Preparation beats persistence in this market. A few concrete steps make a measurable difference.

First, build a master resume that lists every tool, framework, certification, and clearance status explicitly. Then create a tailored version for each posting that mirrors its language. Second, gather documentation early if a clearance is in play: employment history, education records, and references for the relevant period. Third, practice describing past work in terms of outcomes and constraints, rather than tasks alone. Interviewers at contractors want to know how a candidate handled a review, a deadline, or a compliance requirement.

It also pays to think about adjacent skills. A software developer with cloud certifications, a cyber analyst with compliance experience, or an engineer with proposal support background becomes more valuable on a contract team. Contractors staff to requirements, and candidates who can cover more than one requirement are easier to place.

For readers exploring other career-adjacent topics on this site, the same principle of targeted preparation applies broadly, whether the subject is a professional field or a personal-care routine like a 2a hair care routine or the details of press on nail care. The pattern holds: know the requirements, prepare specifically, and avoid generic submissions. (Auburn hair care)

Where Leidos Careers Fit in the Broader Market

Defense and government services hiring runs on its own rhythm. Budget cycles, contract awards, and continuing resolutions all affect when roles open and how fast they fill. That makes Leidos careers less predictable than careers at a commercial software company, but it also makes them more stable once a candidate is inside. Contracts run for years, and employees who perform well tend to move between programs rather than out the door.

For candidates weighing options, the trade-off is clear. The work is often mission-driven, the job security is real, and the compensation is competitive. In exchange, the environment is structured, the clearance process is slow, and remote flexibility is limited. Knowing which side of that trade-off matters more is the real decision.

Conclusion

Leidos careers reward preparation over volume. The company hires at scale, but its openings are shaped by contracts, clearances, and federal customers, which means the candidates who succeed are the ones who read the requirements closely, apply to the right roles, and can speak directly to the mission behind the job. Start with the official careers site, filter honestly by clearance and location, and treat every application as a targeted pitch rather than a lottery ticket. The process is slower than most, but for the right candidate, it is also more durable.

FAQ

Does Leidos require a security clearance for all jobs?

No. Many roles require an active clearance, but a large share are clearance-eligible, meaning the company will sponsor the process for candidates who qualify. Citizenship, a clean background, and patience through the investigation are usually required for those roles.

How long does the Leidos hiring process take?

It varies widely. A funded, urgent role can move from application to offer in a few weeks. Roles tied to pending contract awards can take months, and the clearance investigation adds further time on top of the hiring decision.

Can you work remotely at Leidos?

Some roles allow remote or hybrid work, but much of the company’s work happens on-site at government or customer facilities. Remote availability depends on the specific contract, so candidates should check each posting rather than assume flexibility.

What does Leidos look for in entry-level candidates?

Leidos runs a university recruiting and internship program and hires new graduates mainly in software engineering, systems engineering, cybersecurity, and data roles. Relevant coursework, internships, certifications, and the ability to obtain a clearance matter more than a prestigious degree.

Does Leidos pay for security clearances?

The company sponsors clearances for many clearance-eligible roles, covering the cost of the investigation process. Candidates do not typically pay for a clearance themselves, but they do need to complete the required paperwork and interviews honestly.

What is the best way to get hired at Leidos?

Apply to roles that match your actual clearance status and location, tailor your resume to each posting’s language, and prepare for the recruiter screen with clear answers on salary and availability. Referrals and internships also improve the odds considerably.