Plasma Shields are the closest thing to energy shields that modern science understands. They are not a mature technology, but they can at least in theory do what you are asking according to modern understandings of science and engineering. They work by using lasers, electricity, microwaves, and/or magnates to rapidly polarize and heat up the air between the vehicle and an attacker in a way that creates a temporary "high density" plasma field.
What plasma shields are already publicly specced to do:
The primary military use of plasma shields today is that they can block explosive shockwaves, lasers and other electromagnetic weapons, and radiation. They are not speced to stop missiles, bullets, or melee attacks, but the science already exists or is very close to existing for them to be able to.
How plasma shields can be developed to meet your needs:
There was a government program a few years back called Plasma Point Defense that was theorised to be able to use plasma to detonate missiles too, but it was abandoned because the technology to make an "eye safe" missile shield did not exist yet: basically the shield was so bright you would burn your retinas using it. Newer plasma shield programs such as MILI-Flash and RESLIFE are solving this issue by finding ways to make darker high energy plasma shields. So, although they don't exist yet in any declassified capacity, expect to "eye safe" missile shields in the next few years.
No current shield can block a kinetic attack directly because solid matter is not meaningfully affected by a plasma shield pulse; however, if your setting prominently features energy based small arms such as a plasma pulse, laser, radiation, or electrolaser weapons those could certainly be blocked with existing technologies.
That said, there are ways to protect against bullets and melee that don't require stopping the bullet or blade. One way a plasma shield can already do this is to make it much harder to target you. Plasma bursts like those created by PASS create a bright disorienting burst around you which can make you much harder to see precisely enough to know where to shoot, blind a melee attacker who gets too close, and interfere with computer aided targeting sensors. You just need to give your soldier something similar to transition welding goggles to make sure he is not blinded in the process.
Another application that could exist in the very near future using only technology that already exists is resistive tracking. A plasma shield creates a thin layer of atmospheric pressure which a bullet can easily pass through, but PASS style shields can create very controlled pulses of plasma by design. Stellar Photonics for example is currently working on one that can generate hundreds controlled pulses per second. While the official purpose of this project is to make a crowd control system similar to PASS, If such a shield were programmed to track the path of a bullet, it could make enough of these small wakes in the bullet's flight path to stop or deflect small arms similar to flying through a really thick and turbulent shield window.
I'm not sure exactly how much power they use, or how small they can be made, but all the milliaray designs I am able to find are intended to be installed on aircraft, tanks, and humvees and powered by non-nuclear power sources. Based on this, I do not believe you could fit a shield on your person, but vehicles can project shields up to 100m. So, you will not have anything like a Gungan personal shield, but if you look at the way Fambaa shields work to protect squads of nearby infantry, something similar to that is feasible under modern tech.
Another approach, and the most effective one IMO is to consider a shield part of a layered defensive system. Modern body armor is getting REALLY good to the point that gun makers are having a really hard time now designing bullets of reasonable size that can penetrate them. 4 layers of NNF treated kevlar is all it takes to stop most bullets. Add in ceramic plating and you can very quickly armor yourself against most military calibres of bullets and melee weapons at a fraction of the weight it used to take just a few years ago. If you accept that your armor is part of a layered defense strategy, then a plasma shield would protect you from explosive percussion, electrocution, radiation, and lasers etc which would otherwise be able to bypass modern armor.