England As a teen he began his football career at the age of 15 with
Walsall F.C. After graduating from the club's youth system Taiwo lost his mother to cancer, during which time he spent a month with
Southern League Premier Division club
Nuneaton Borough on work experience, Atieno signed professional contract forms in July 2004 under then manager
Paul Merson. He had loan spells at
Rochdale,
Chester City with
Ian Rush,
Kidderminster Harriers, and
Darlington. Atieno was released by the club at the end of the 2005–06 season following their relegation from
League One. After leaving Walsall F.C. Atieno joined
Conference National club
Tamworth in August 2006. Atieno scored 12 league goals, Signing in July, Atieno started his spell well, scoring 7 goals in 12 games. The Islanders surpassed expectations reaching the semi-finals of the USL playoffs. Atieno providing 2 goals against an experienced
Montreal Impact side. In the 2008 campaign, Atieno scored a historic goal advancing Puerto Rico Islanders to
CONCACAF Champions League group stages. Islanders overcame a 2–1 deficit to knock out the
Primera División de Costa Rica L.D. Alajuelense. L.D. Alajuelense was the first Costa Rican team to win a CONCACAF Champions' Cup in 1986. In March 2009, Atieno joined
Rochester Rhinos of the USL First Division; he had requested a trade due to losing his father to cancer and was traded to
Charleston Battery during the off-season, but later choose to join
Rochester Rhinos instead.
Back to England He moved back to England with
Conference Premier team
Luton Town in March 2010 on a short-term contract, but left in July. After training with South African club
Supersport United during the English summer, he rejoined Luton on 2 September 2010 on a contract until January 2011 after rejecting a deal with the South Africans. Atieno scored his first goal for Luton against
Bath City on 30 October. This was then followed up with two goals in a 4–2
FA Cup First Round replay victory over
Corby Town on 17 November. Atieno's goal-scoring form continued into January where he followed up a brace of goals in the
FA Trophy against
Uxbridge with the final goal (his seventh of the season in all competitions) in Luton's 5–0 home win over
York City on 18 January 2011. Despite this goalscoring run, Luton opted not to extend Atieno's contract. He was released on 31 January. and made his debut the next day, starting in their 1–0 away loss at
Shrewsbury Town. Ahead of the
2011–12 season, Atieno went on a two-week trial with League Two side
Torquay United. Three days later, Atieno scored again in Torquay's 2–0 victory over
Championship side
Bristol City. He signed a one-year contract with Torquay on 25 July 2011, with manager
Martin Ling stating — "He has impressed us while he's been here and we've put in a contract that we feel is right". and scored his first goal in a 2–0 home win over
Bradford City. Atieno left the club by mutual consent on 1 February 2013. ==International career==