{"id":2360797,"url":"https://alion.io/job/ionetic-software-engineer","title":"Software Engineer","company":{"id":4422879,"name":"IONETIC","domain":"ionetic.com","url":"https://alion.io/company/ionetic","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C#","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-09-16T00:00:00Z","employer_posted_date":"2026-09-16","last_verified_at":"2026-11-13T00:09:05Z","board_verified":true,"closed_at":null,"days_open":58,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":58},"description":"IONETIC - who are we?\nIONETIC is a battery technology start-up based in Brackley, just a few miles from Silverstone-the heart of British motorsport. We specialise in battery pack solutions for low-volume electrified applications, including buses, sports cars, and other vehicles. Our mission is to make electrification both possible and compelling for every vehicle OEM, by providing tailored, cost-effective battery packs with unmatched speed and flexibility.\nBy integrating proprietary software, mechanical design, and manufacturing technologies into a single technology stack we call Arc, we deliver custom battery systems that meet a wide range of energy, power, and lifecycle requirements. Our chemistry-agnostic, scalable designs are built to accelerate the journey to net zero for our customers.\nWorking at IONETIC\nIONETIC offers an exciting opportunity to be part of a fast-moving, innovative start-up that is shaping the future of electric mobility. With a strong order pipeline and growing demand for our technology, we're expanding our team to broaden our capabilities and scale our operations.\nAs an early-stage employee, you will play a key role in developing the foundational technologies and capabilities that will power the next generation of electric vehicles. Every employee at IONETIC takes on meaningful responsibility and is encouraged to contribute ideas, take initiative, and grow both professionally and personally in a supportive, collaborative environment.\nOpportunity\nWe are looking for a Software Engineer to build, deploy, and maintain IONETIC's internal software toolchain. In this role, you will design and develop software that supports engineering activities across the business, working closely with the engineering team to turn technical requirements into working software.\nYou will work across the stack as needed, contributing to tooling, deployment, and data management practices that keep the toolchain reliable and scalable.\nResponsibilities\nDesign and build software across IONETIC's internal toolchain\nDeploy and maintain software and supporting infrastructure\nManage and structure data used across the toolchain\nWrite clean, maintainable, well-documented code\nWork across the stack as needed, including tooling in Python, TypeScript, and C#\nCollaborate with engineers to translate technical requirements into working software\nContribute to decisions on software architecture and design\nSkills and Experience\nDegree in Computer Science, Software Engineering, or a closely related discipline, or equivalent experience\nSolid Python skills, with 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