1. The job is as much about discipline as about technology Software and sensors change every few years. What stays valuable: logging what you did, checking before you trust, and handing over clean records. Offshore, a missing calibration file or an unlogged change can cost days. 2. Learn the basics until they are automatic Coordinate reference systems: datum, ellipsoid, projection, and the difference between ellipsoidal, orthometric and chart-datum heights. Positioning: how GNSS corrections work, what accuracy figures mean, and what can go wrong (multipath, loss of corrections, bad geometry). Acoustics: sound velocity, refraction, and how multibeam and USBL actually measure. You do not need to master everything at once. You do need to be able to explain why a number is what it is. 3. Know the main disciplines Offshore survey is not one job. Common areas: Hydrographic survey: bathymetry, charting, site surveys. Offshore construction survey: positioning during installation, as-built, dimensional control. Geophysical survey: seabed and sub-seabed imaging for route and site selection. Subsea inspection: ROV-based visual and positional inspection of existing assets. Aerial and onshore: LiDAR and mapping, often a bridge into marine work. Try to get exposure to more than one before you specialise. The overlaps are large and make you more useful. 4. Be useful in the field Show up prepared. Read the procedure and the specification before mobilisation. Ask before you assume, but bring your own proposal when you ask. Keep a notebook. Note settings, offsets and decisions as they happen. Look after your safety, and your crew's. Offshore, a good habit here matters more than any technical skill. 5. Write well Daily reports, QC notes and emails are part of the deliverable. A clear, short report shows a client that you control the work. This is also the cheapest skill to improve and one of the most visible to the people deciding on your next role. A simple structure works for most daily reports: what was done, what was found, what problems happened and how they were handled, and what is planned next. If the client representative can read it in two minutes and knows where the project stands, it is a good report. 6. Think about the long path early Many people move from field to party chief or senior surveyor, then to project, operations or client-facing roles. The step up depends less on knowing more software and more on planning, communication, cost awareness and judgement. Start practising those early by asking why decisions are made, not only what to do. 7. Practical starting points Certifications and courses relevant to hydrography and offshore work (for example, safety and offshore basic training and recognised hydrographic programmes). Build small projects with real data: process a public bathymetry set, write up the QC. Join survey communities and read operator and contractor technical notes. 8. Mistakes I see in the first year Trusting the display. A screen that shows a nice position or a clean surface is not proof that the inputs are right. Check the offsets, the geodetic parameters and the calibration values yourself at least once. Changing settings without logging them. Even a small change, such as a new filter or a different SV profile, needs a time and a note. The person on the next shift has to know. Staying quiet about a doubt. If something looks wrong, say it early. A question that turns out to be nothing costs a minute. A problem that nobody raised can cost a re-survey. Treating the onshore processor or the client as the opposition. They are part of the same chain. Good working relationships make every handover faster. Ignoring the specification. Know which accuracy standard and deliverable format the project requires before you start collecting data, not after. 9. Living with rotations Offshore work usually means weeks away followed by time at home. The technical side of the job is only half of it. The other half is staying healthy and steady through long shifts, small cabins and changing weather. Sleep and routine matter more than people expect. Keep regular meals, move your body when you can, and protect your rest between shifts. Stay in contact with family and friends, and plan your time at home so it is real rest, not only recovery. People who manage this well tend to stay in the industry longer and make better decisions on the job. 10. Find people to learn from A good party chief or senior surveyor can teach you more in one project than a year of reading. Watch how they plan a day, how they talk to the client, and how they react when something goes wrong. Ask them why, not only how. When you get the chance later, return the favour to the next new graduate on board. Closing Starting offshore is hard in the first year and worth it. The people who do well are usually not the cleverest in the room. They are the ones who check their work, communicate clearly and keep learning.