[7] Manager Paul Peschisolido was impressed by his displays in the pre-season friendly matches,[8] and Maghoma was in the starting eleven for both his and his team's Football League debut, on 8 August 2009 in a 3–1 defeat away to Shrewsbury Town.

[10] Having established himself in the team in the second half of the season,[11] he scored his second goal in a 1–0 home win against Port Vale on 6 February 2010, and his third in a 3–2 loss away to Morecambe ten days later.

[14][15] After turning down an international call-up to the DR Congo team to concentrate on his club career – particularly on his defensive duties[16] – Maghoma scored his first goal of the season in a 1–1 draw with Crewe Alexandra on 18 September.

[17] In the penultimate match of the season, away to Southend, Maghoma received the first red card of his career for reacting verbally to provocation from home fans after Scott Malone's goal that ensured Burton's survival in League Two.

[23] A victory against Crewe Alexandra meant that his absence with an ankle knock was not crucial, and he returned to score his first goal of the season as Burton beat Swindon Town 2–0.

[34] He scored both goals in a 2–0 defeat of Wycombe Wanderers in April that took Burton into the automatic promotion positions,[35] but they finished fourth, so went into the play-offs against Bradford City.

Coming into the match as a first-half substitute for Joe Mattock, Maghoma was booked for diving when the victim of what QPR's assistant manager agreed was a foul in the penalty area by the already-booked Joey Barton, and also shot against the post, as Sheffield Wednesday lost 2–1.

[44] He had missed some of pre-season training because of injury, and was not a regular in the team for the first few months of the season,[45] but had a run in the starting eleven from late November, and scored his first goal in a 2–1 loss against Bournemouth.

[48] His season effectively ended in March, when he was fouled by Wigan Athletic's goalkeeper and suffered knee damage that kept him out until the final match,[49] in which he had ten minutes as a substitute.

[52] But after initially holding down the left-wing position once Michail Antonio left the club, he lost his place in the face of competition from Chris Maguire and new arrivals Royston Drenthe and Hallam Hope,[53] and it took a "kick up the backside" from manager Stuart Gray to improve his performance in training and return him to the starting eleven.

[57] Maghoma linked up again with former manager Gary Rowett at Championship club Birmingham City in June 2015, when he signed a two-year contract with the option of a further year.

[59] His first league goal was the second of a 2–0 win at Milton Keynes Dons; having come on soon after half-time, he ran on to Clayton Donaldson's through pass and slid the ball past the goalkeeper.

[63] He scored at Leeds United in Birmingham's first win of the 2016–17 season,[64] and crossed for David Davis's goal against Norwich City[65] and Lukas Jutkiewicz's late winner against Sheffield Wednesday.

[67] Under new manager Gianfranco Zola, Maghoma made three starts, in the second of which his decisively taken goal sparked a comeback from 2–0 down to draw with Barnsley,[68] before spending January at the Africa Cup of Nations.

Northern Premier League Eastern Division club Spalding United, managed by former DR Congo international Gabriel Zakuani, announced the arrival of Maghoma in June 2021.