{"id":1546497,"url":"https://alion.io/job/oj-electronics-embedded-software-engineer-drives","title":"Embedded software engineer – Drives","company":{"id":2024515,"name":"OJ Electronics","domain":"ojelectronics.com","url":"https://alion.io/company/ojelectronics","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":null},"role":"Hardware","role_family":"Hardware","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Sønderborg, Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":61000,"max_usd":141000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":536},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"Gitflow","optional":false},{"name":"MATLAB","optional":true},{"name":"Wi-Fi","optional":true}],"status":"live","first_seen_at":"2026-09-09T09:23:31Z","employer_posted_date":"2026-09-09","last_verified_at":"2026-10-01T08:50:50Z","board_verified":true,"closed_at":null,"days_open":23,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":23},"description":"If you’re an experienced embedded software engineer who enjoys working where SOFTWARE, POWER ELECTRONICS, MOTOR TECHNOLOGY and CONTROL ENGINEERING meet, this could be the job for you.\nOJ Electronics - a Danish producer of HVAC drives, AHU controllers, and thermostats for electric floor heating - is looking for an intermediate/senior-level embedded software engineer to join our Drives software team in Sønderborg, Denmark.\nYour main job will be to develop the embedded software behind our VARIABLE SPEED DRIVES for energy-efficient HVAC applications - working on solutions that combine sophisticated control with robust, real-world performance.\nYou’ll be involved throughout the development process, from early ideas and system architecture to simulation, testing and validation. And because our products bring software and hardware closely together, you’ll work across disciplines rather than disappearing into a software silo.\nYour role\nReporting directly to our R&D development manager, you’ll be expected to:\nDevelop embedded software solutions, primarily for power electronics and variable speed drives\nParticipate in cross-functional development projects\nContribute during early ideation phases\nSolve complex development challenges\nContribute to system design and architecture\nBuild robust simulation models to validate control concepts early in the development cycle\nTake responsibility for documentation\nParticipate in testing and validation\nSometimes help customers directly with troubleshooting and issue resolution\nBroad-based collaboration\nAs part of our diverse R&D team, you’ll work alongside hardware engineers and other specialists, contributing to the entire product lifecycle and getting involved in challenges ranging from communication and automation protocols to motor technologies and control-system engineering.\nYou’ll also have the satisfaction of seeing your own code running in thousands of products - helping improve everyday comfort and energy efficiency for users around the world.\nMust-have qualifications\nA bachelor’s or master’s degree in embedded software, electronics engineering or a similar field\nAt least three years of professional embedded software development experience\nStrong C/C++ skills for embedded systems\nExperience with microcontrollers and real-time programming\nExperience with motor control systems\nUnderstanding of control engineering in embedded systems\nHands-on experience with hardware/software debugging tools such as oscilloscopes, logic analyzers, and JTAG\nA good understanding of hardware/software interfaces\nThe ability to read and interpret schematics and datasheets\nExperience with Git, Git Flow and CI/CD\nKnowledge of communication interfaces such as UART, I2C and SPI\nPractical laboratory testing and validation experience\nStructured problem-solving and debugging skills\nClear and concise technical communication in English\nA team-oriented mindset and experience with agile collaboration\nNice-to-have qualifications\nExperience with:\nModbus or BACnet\nMATLAB simulation\nWi-Fi or Bluetooth Low Energy\nEmbedded-system security\nWorking at OJ\nAt OJ Electronics, you’ll find an informal, open and collaborative culture where people take pride in doing quality work.\nWe offer:\nA flat organizational structure where decisions are made quickly\nOpportunities to grow your expertise and responsibility over time\nA healthy work-life balance and flexible working hours\nCompetitive salary and pension package\nA modern workplace with canteen and good facilities\nEmployee satisfaction scores average 85 - and we take pride in maintaining a workplace where people truly thrive.\nPlease note that this position is based in Sønderborg, Denmark, and requires your physical presence on site. This is not a hybrid or remote position.\nThe application process\nFor this position, we will be interviewing on an ongoing basis until we find the right person.\nAbout OJ Electronics\nFounded in 1964 and headquartered in Sønderborg, Denmark, OJ Electronics produces electronic controls for underfloor heating and HVAC controls and drives. Our products are available through partners and distributors worldwide, and we have subsidiaries and sales offices in key markets, including the United States and Poland. Everywhere, we are known for our innovative approach, insistence on product quality, and deep application knowledge - all of which helps customers differentiate themselves in the market.\nIn June 2023, OJ Electronics was acquired by BITZER Electronics, a BITZER Group company also headquartered in Sønderborg. This makes OJ Electronics part of the BITZER Group family, which is represented at 75 locations in over 40 countries and employs some 4300 people worldwide, 185 in OJ Electronics, Sønderborg, Denmark.","description_format":"text","description_chars":4750,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"Danish","level":"All levels","optional":false},{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"Denmark","iso":"DK","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Game Design","HVAC & Refrigeration"],"lifecycle":[{"event":"open","at":"2026-09-30T22:19:21Z"}],"liveness":{"score":48,"band":"ok","label":"Likely open","p_open":1,"p_active":0.644,"p_room":0.75,"age_days":22,"expected_fill_days":24,"reasons":["conf:20","win:late"],"computed_at":"2026-10-02T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/oj-electronics-embedded-software-engineer-drives","json_url":"https://alion.io/job/oj-electronics-embedded-software-engineer-drives.json","meta":{"generated_at":"2026-10-03T03:29:20Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3266,"day_limit":5000,"remaining_today":1734,"minute_limit":60,"resets_at":"2026-10-04T00:00:00Z"}}}