Software Engineer Salary in New Hampshire (2026)

Worth knowing: Fidelity Investments Merrimack + BAE Systems Nashua + the substantial Boston commute corridor is one of the country's distinctive concentrated US single-state Fidelity regional + cleared defense + tax-haven remote tech anchor and a feature most national SE surveys understate for NH. Fidelity Investments Merrimack (~5K+ NH workforce + the substantial Fidelity Merrimack technology + Fidelity Workplace Investing 401(k) + Fidelity Personal Investing brokerage + the substantial Fidelity ~$13T AUM platform + the substantial Fidelity post-2020 Merrimack growth + the substantial Fidelity Investment Operations + the substantial Fidelity Merrimack-Smithfield RI-Boston MA tri-campus operations) supports substantial NH financial services SE work. Senior Fidelity Merrimack engineers clear $135-215K+ TC. BAE Systems Inc. Nashua (~5K+ NH workforce across Nashua + Hudson + Merrimack + Manchester + the substantial BAE Electronic Combat Systems ECS + Countermeasure & Electromagnetic Attack Solutions CEMA + the substantial post-2018 BAE-Sanmina + the substantial BAE F-35 EW Block 4 electronic warfare + the substantial BAE F-15 + F-16 + F-18 EW + the substantial BAE Eagle PASSPORT + DRS Land Electronics) supports substantial NH cleared defense SE. Senior cleared BAE Nashua engineers clear $128-195K+ TC with TS/SCI premium. Bottomline Technologies Portsmouth post-2024 Thoma Bravo private + SNHU Manchester EdTech + Dartmouth-Hitchcock + the substantial Boston commute corridor for remote tech workers. NH 0% wage income tax + post-2025 NH Interest & Dividends I&D tax repeal (effective 2025 making NH fully income-tax-free) + NH 0% sales tax + NH is NOT a RTW state + NH property tax ~2.09% (high) + no state estate tax anchor the NH SE proposition.