Bosnian/Croatian/Serbian Instructor Leidos is seeking a skilled Bosnian/Croatian/Serbian Instructor to support a high-priority customer mission. These are full-time in-person positions requiring both teaching and language assessment responsibilities. Ideal candidates will be passionate about language instruction, experienced in adult education, and capable of adapting materials to meet customized learning needs.

Key Responsibilities:

• Provide 3–5 hours of language instruction per day across proficiency levels ILR 0–3.

• Develop tailored instructional materials and training aids to meet student-specific learning objectives.

• Undergo sponsor-provided training to become a certified language tester.

• Conduct 3–4 language proficiency assessments per week following certification.

• Teach language through cultural immersion, leveraging a strong understanding of language culture and current events.

• Collaborate with senior instructors to maintain instructional standards and curriculum quality.

Minimum Qualifications:

• Bachelor’s degree(from a U.S. institution or from the country where the target language is spoken). Additional years of experience may be substituted in lieu of a degree.

• A minimum of:

Minimum 3+ years of direct adult teaching experience;or

• 8–12 years of relevant experience;or

• A master’s degree with 6–10 years of relevant experience.

• Proficiency in developing instructional materials customized for adult learners.

• Familiarity with ILR Scale and current events and cultural developments in the foreign language.

Language Testing Requirements:

• Must pass a Leidos-administered or approved commercial translation test (3 hours).

• Minimum passing test scores:

Translation Test: 4 or higher.

• Oral Proficiency Interview (OPI): 4/4/4 (Speaking/Listening/Reading).

Security Clearance:

• No clearance required to apply.

• Able to obtain a TS/SCI clearance with polygraph(must be fully adjudicated before work begins). Leidos will sponsor candidates after passing all the required language tests.

• Clearance must be fully adjudicated before starting. Linguists can only begin work on contract with a fully adjudicated security clearance.

​​Ready to Make an Impact?

This is more than a job—it's a mission. If you're driven, qualified, and passionate about language education and national service, we want to hear from you. Submit your resume today and embark on a rewarding career that truly matters.

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that provide them with an opportunity to thrive, professionally and personally. For us, helping you grow your career is good business. We’re excited to learn more about you, apply today!

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:

October 28, 2025

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 $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline only and 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.