Twardzik trained with
Bayern Munich as a youngster, Compensation issues were to kill off any possibility of a move to
Fir Park, so he signed on at
Karlsruher SC. In 2011, he moved to
Italian football with
Calcio Como. Having struggled to make an impact in Italy, Twardzik was recruited by Scottish club
Aberdeen. He did not make a single appearance for the
Pittodrie club, as he was used mostly as a back-up to
Jamie Langfield and he was released at the end of the 2012–13 season. The following season, Twardzik moved down a division and signed for relegated club
Dundee. Again, he found first-team opportunities very hard to come by. With both
Lee Hollis and
Gunnar Nielsen out injured, Twardzik went on an emergency one-month loan to Motherwell. He made five appearances for the club. Twardzik returned to Dundee when his loan spell had expired, with Motherwell attempting to extend the loan, however this did not happen. After making his return, Twardzik made his debut for Dundee on 25 January 2014, coming on as a substitute against
Falkirk, after first choice goalkeeper
Kyle Letheren had been sent off. He immediately saved a penalty but could not stop Dundee losing 2–0. After spending the remainder of the season as back-up for Letheren, Twardzik's futures appeared to be uncertain following the club's promotion to the Scottish Premiership. At the end of the season it was confirmed Twardzik would be leaving the club. On 23 May 2014, Twardzik returned to
Motherwell, signing a two-year contract. Following the move, he said he aimed to become the first choice goalkeeper at the club. Twardzik made his second debut for Motherwell, in
the Europa League second qualifying round first leg, in a 2–2 draw against Icelandic side
Stjarnan. However, in the return leg, he came under criticism when he allowed the opposition team to take the lead in extra time, with the match finishing in a 3–2 victory for Stjarnan, eliminating Motherwell. Twardzik started in goal, in the opening game of the league season, in a 1–0 win over
St Mirren. Since making his debut, Twardzik became the first choice goalkeeper, with manager
Stuart McCall showing faith in him. ==International career==