Senior Full Stack Developer - Combat Coder

About the Role: We’re seeking a Senior Combat Coder — a highly skilled, adaptable full stack developer who thrives in challenging, disconnected, and resource constrained environments. You’ll be building and integrating mission critical systems using Python, Apache NiFi, and other modern tools, often without the luxury of constant connectivity. This is not a “sit behind a desk and push commits” role — it’s for someone who loves solving hard problems in the field, under pressure, and with creativity. Why You’ll Love This RoleYou’ll work on high impact projects where your code directly supports critical missions. You’ll be part of a tight knit, elite engineering team that values skill, creativity, and adaptability. You’ll face real technical challenges that push your abilities far beyond the ordinary.

Primary Responsibilities: Integrate systems and data flows using Python, NiFi, and other integration frameworks. Engineer resilient solutions that can operate in austere, bandwidth limited, or air gapped conditions. Collaborate with cross functional teams to rapidly prototype and deliver mission critical capabilities. Troubleshoot and optimize code and workflows in real time, often with incomplete information. Document and harden solutions for long term maintainability in the field.

Basic Qualifications: Bachelors Degree with 12+ years of experience or a Masters Degree with 10+ years of experience. Additional experience maybe considered in lieu of a degree. US Citizen with at least an active TS/SCI clearance and the ability to maintain your clearance during your employment with Leidos. Proven full stack development experience. Strong Python skills and experience with Apache NiFi or similar dataflow/integration tools. Comfort working in disconnected or degraded network environments — you know how to make things work without cloud dependencies. Solid understanding of APIs, data pipelines, and system integration patterns. Creative problem solver who thrives on tackling complex, ambiguous challenges. Self starter who can operate independently and deliver under tight deadlines. Strong interpersonal and communication skills. Understanding of source control such as Gitlab and others.

Preferred Qualifications: Experience using JEMA and ARC GIS. Experience with DevOps in air gapped environments. Background in secure coding practices and cyber resilient architectures. Prior work in mission critical, defense, or field operations. DABAOPP1 Pay RangePay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Pay and BenefitsCompetitive compensation Health and Wellness programs Income Protection Paid Leave Retirement Securing Your DataLeidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. (We will not ask for payment related info) Commitment and DiversityAll qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.